[go: up one dir, main page]

CN108541090A - A kind of intelligent water communication electric heater and production method - Google Patents

A kind of intelligent water communication electric heater and production method Download PDF

Info

Publication number
CN108541090A
CN108541090A CN201710139140.0A CN201710139140A CN108541090A CN 108541090 A CN108541090 A CN 108541090A CN 201710139140 A CN201710139140 A CN 201710139140A CN 108541090 A CN108541090 A CN 108541090A
Authority
CN
China
Prior art keywords
intelligent
electric heating
electric heater
electrothermal
water communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710139140.0A
Other languages
Chinese (zh)
Inventor
吴明番
郑云
陈东
陈耀卫
刘志伟
郝冉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CN108541090A publication Critical patent/CN108541090A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H05B3/44Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
    • 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
    • H05B3/78Heating arrangements specially adapted for immersion heating
    • H05B3/80Portable immersion heaters

Landscapes

  • Resistance Heating (AREA)

Abstract

The invention discloses a kind of intelligent water communication electric heater, it includes electricity Jia Re Guan Group parts 1, Jue edge Wai Ke Group parts 2, connection component 3 it is characterized in that:The inner surface of the outer shell Group parts of the exhausted edge 2 includes and the non-contacting reflecting layer in the outer surface of electrothermal semiconductor film layer 12 22;The connection component 3 includes air locking 31 of the configuration in the open end of electric heating tube matrix 14 and the open end 22 of insulation crust so that insulation crust 21 becomes a closure.So that controller assemblies 4 and electricity Jia Re Guan Group parts 1, really realize electric heating isolation.It include the intelligent control device of microcontroller, temperature sensor, digital-scroll technique device, IC intelligent chips and other software or hardware(41)All configuration is in intelligent control box 31;Its advantages of is the safety guarantee that can effectively solve Electric radiant Heating Film water flowing electric heating tube, and alternative metals resistance wire is really achieved energy-efficient effect, particularly suitable as a kind of fish jar water body or fast heating type water fountain electric heating device.

Description

A kind of intelligent water communication electric heater and production method
Technical field
It is a kind of water flowing electric heating device the present invention relates to a kind of electric heating device , Te Do.
Background technology
Liquid electric heater part in the prior art, especially water flowing electric heating device, widely used metallic resistance silk material Electrothermal tube is directly put in a liquid when application, liquid is transferred heat to after electrified regulation, is reached by electrothermal tube made of material Heat the purpose of liquid, i.e., " immersion heater " being commonly called as in market.With this liquid electric heater part, security performance is poor, always There is the hidden danger of electric leakage, and work in hard water for a long time, are easy fouling, reduce thermal energy conversion efficiency;It can not be to gold Belong to and working in mordant liquid environment, otherwise easily damage, causes electric leakage safety accident;While metallic resistance wire material Service life also limits the service life of this electrothermal tube.
With emerging for electrothermal semiconductor membrane material, there are many electrothermal film heating pipe productions for attempting to substitute " immersion heater " Product, these electrothermal film heating pipes overcome defect existing for electrothermal tube made of metallic resistance wire material;But existing structure In practical applications, all there is also poor safety performances, and reliability is low for electrothermal film heating pipe, and Knot structures are complicated, the problem of at Ordering-the high etc., Hinder the popularization and application of electrothermal semiconductor membrane technology.
It is a kind of novel semiconductor material by what electrothermal film material, there are many places it has to be noticed that otherwise when practical application It easily damages, or even generates safety accident.
In practical applications, electrothermal tube basis material mostly uses glass, ceramics to the electrothermal film heating pipe of existing structure.Though Right glass, ceramics are a kind of good hydroelectric isolator parts.But the basis material of this water flowing electric heating tube is a kind of basic Insulation, cannot apply, otherwise product fails safety standards in two electric appliances products.
It is simultaneously glass by the basis material of what water flowing electric heating membrane pipe, when ceramic, electrothermal film heating pipe cannot be in dry combustion method " State(There is no liquid)When use, otherwise Electric radiant Heating Film is easily damaged or causes to burst;Glass, ceramic matrix electrothermal film heating pipe Fragmentation will cause leak to basis material when in use, to electrothermal film heating pipe Tapes come security risk of leaking electricity.
In addition the electrothermal film heating pipe of existing structure in practical applications, is all made of temperature signal power-off protection Electric radiant Heating Film Method achievees the purpose that protect electrothermal film heating pipe.We define this method by temperature signal power-off protection Electric radiant Heating Film It, cannot by this passive protection Fang Fa And of the semiconductor feature of what electrothermal film material for the passive protection method of electrothermal film heating pipe The reliability for efficiently timely protecting Electric radiant Heating Film all can not be asked in previous patent and related skill document and product above-mentioned Topic is effectively solved.
Such as:A kind of " electric membrane quartz heating pipe " of the patent No. 200810061173.9, is realized by Electric radiant Heating Film to liquid The heating of body realizes the state of water power isolation, guarantor Warm is carried out by vacuum chamber, thermal insulation layer, complicated, of high cost;Specially " a kind of liquid heating element of water power isolation " that profit number is 200620100452.8.Although proposing electrothermal tube matrix and half The outer surface of conductor electrothermal diaphragm layer is configured with reflector, and reflector or casing insulation layer are one close with sealing element safety valve Feng Ti, but, it is complicated, it is of high cost, it is unable to practical application popularization.
Invention content
In order to overcome deficiency in the prior art, the present invention proposes that easy to implement, manufacture craft is simple, at low cost, property Valence is than a kind of high intelligent water communication electric heater device and production method.
The present invention is implemented by following technical proposals:
A kind of intelligent water communication electric heater, including electricity Jia Re Guan Group parts 1, Jue edge Wai Ke Group parts 2, connection component 3, feature exists In:The electricity plus hot pipe Group parts 1, including electric heating tube matrix 11, electrothermal semiconductor film layer 12, electrode 13;The semi-conductor electricity Hotting mask layer 12 is covered in the outer surface of electric heating tube matrix 11;The inner surface of the Jue edge Wai Ke Group parts 2 includes and semiconductor The non-contacting reflecting layer in the outer surface of electric membranous layer 12 22;The connection component 3 includes to be configured in electric heating tube matrix to open The air locking 31 at mouth end 15 and the open end 23 of insulation crust so that insulation crust 21 becomes a closure.
Such as Fig. 1;This layer of non-contacting reflecting layer substantially increases the thermal efficiency of electrothermal film heater.This closure knot Structure is penetrated through in Inlet and outlet water port position and the water of electric heating tube matrix 11, while it is outer so that insulation crust 21 becomes a closing Shell, the leakage hidden trouble that can effectively prevent glass, ceramic matrix material ruptured zone from coming.
By optimization, by intelligent control component 4 is equipped with, wherein intelligent control component 4 includes intelligence for the outside of the insulation crust 21 Energy control device 41, intelligent control box 42;Wherein intelligent control device 41 includes microcontroller, and temperature sensor is digital aobvious Show the control device of device, IC intelligent chips and other software or hardware.It is configured in insulation crust by what intelligent control component 4 21 outside is detached with 12 heat source of electrothermal semiconductor film layer, really realizes electric heating isolation, intelligent control device 41 can be accurate School temperature, temperature adjustment are conducive to the reliable and secure work of water flowing electric heating tube.
By optimization, in the connection component 3, include suddenly Lovell sensing devices 32 in the Inlet and outlet water of electric heating tube matrix 11 Port has to be penetrated through with water, achievees the purpose that water flowing electric heating tube automatic protection.We power off cutting off the water supply for water flowing electric heating tube The function automatic protection functions that are defined as water flowing electric heating tube have relative to the water flowing electric heating tube of passive protection function The water flowing electric heating tube of automatic protection functions substantially increases the reliability of water flowing electric heating tube.
By optimization, the electrode 13 includes power work end and electrical signal.
By optimization, the electric heating tube matrix 11 is two or more quartz ampoules or glass tube, ceramic tube matrix.
By optimization, the explosion-proof gel layer of 80 DEG C of heatproof is covered in the surface Tu of the electrothermal film heating pipe 1.This floor height temperature Explosion-proof gel layer can effectively prevent glass or ceramic fragmentation to fragmentate, flow into the security risk brought in pipe.
By optimization, the extraction electrode 13 includes power work end and electrical signal.
By optimization, the matrix of the electrothermal tube 1 is two layers or more of quartz ampoule or glass tube, ceramic tube matrix.
By optimization, the electrothermal tube 1 is the double insulation body or reinforcement insulator for having two layers or more insulation material layers.It can Effectively to solve electrothermal film heating pipe Tapes the security risk leaked electricity etc..
By optimization, the matrix 11 of the electrothermal tube is two or more quartz ampoules or glass tube, ceramic tube matrix.
By optimization, the electrothermal semiconductor film layer 12 is a kind of electric membranous layer of negative temperature yarn number material.
The beneficial effects of the invention are as follows the safety guarantee that can effectively solve water flowing electric heater and electric utilization rate is improved, is reached The effect of energy-saving safe.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of intelligent water communication electric heater of the present invention:
Fig. 2 is a kind of three-dimensional view of intelligent water communication electric heater decomposing state of the present invention:
Figure label is:
1- electricity Jia Re Guan Group parts:11- electric heating tube matrixes, 12- electrothermal semiconductor film layers, 13- electrodes, 14- electric heating tube matrixes Open end;
2- Jue edge Wai Ke Group parts:21- insulation crusts, the reflecting layer 22-;The open end of 23- insulation crusts;
3- connection components:31- air lockings, 32- Lovell sensing devices suddenly, 33- fasteners;
4- intelligent control components, 41 intelligent control devices, 42 intelligent control boxs.
Specific implementation method
The invention will be further described below in conjunction with the accompanying drawings, preferably to implement:
Embodiment one:
Such as Fig. 1 and Fig. 2, a kind of production methods of intelligent water communication electric heater of, it is characterised in that:Specific manufacture craft include with Lower step:
The first step:Make selection electricity Jia Re Guan Group parts 1;
Second step:Make selection Jue edge Wai Ke Group parts 2 and connection component 3;
Third walks:Make selection intelligent control component 4;
4th step:Assemble intelligent water communication electric heating tube device;
It is characterized in that:The intelligent control box 42 is fixed on the outer surface of insulation crust 21;The interior table of the insulation crust 21 Face, be covered with the non-contacting reflecting layer 22 in the outer surface of electrothermal semiconductor film layer 11, the insulation crust 21 is a waterproof Sealing shell.
When specific implementation:
The first step:With well known technology by the plating of electrothermal semiconductor film layer in quartz glass or ceramic matrix outer surface, And is from two A electrode connects working power with conducting wire;
Second step:With well known insulating materials and sealing material, Jue edge Wai Ke Group parts 2 and connection component 3 is made, with well known height By the inner surface of the insulation crust 21, Tu covers and the non-contacting reflection in the outer surface of electrothermal semiconductor film layer 11 reflective materials Layer 22;
Third walks:To include microcontroller, temperature sensor, digital-scroll technique device, IC intelligent chips and other software or hard The controller assemblies 4 of part all configure in intelligent control box 31;
4th step:First electricity Jia Re Guan Group parts 1 are put into Jue edge Wai Ke Group parts 2, it then will be multi-layer sealed in connection component 3 Device 31 configures Inlet and outlet water port position and water perforation in electric heating tube matrix 11, the opening of configuration Jue edge Wai Ke Group parts 2 End position, then is tightened with fastener 33 so that and insulation crust 21 becomes a waterproof sealing shell, this closing shell structure, The fragmentation that glass, ceramic matrix material can be effectively prevented, the leakage hidden trouble brought;
Then the intelligent control box 42 configured with intelligent control device 41 is fixed on 2 outer surface of shell Group parts outside exhausted edge;Intelligence control The sealing hole that device 41 processed passes through insulation crust with electricity Jia Re Guan Group parts 1(It is not marked in figure)The electrode connecting line of extraction connects, Really realize electric heating isolation;It is equal by what intelligent control device 41 and the temperature sensor Xin lines of Inlet and outlet water port position It is isolated with heat source, is more advantageous to the accurate school temperature of controller assemblies 4, temperature adjustment, wisdom, reliable and secure work.
Finally power on, intelligent control device 41 is started to work, and is started the working power of water flowing electric heating tube 1, is partly led 12 electrified regulation of body electric membranous layer, most of heat are directly transmitted to the water in matrix by electrothermal tube matrix 11, and water temperature rises therewith Height achievees the purpose that heating, remaining heat being radiate to other directions is reflected by reflecting layer 22 in heating element Heated liquid and absorb.A complete heating process is formed, real energy-efficient purpose is reached.This layer non-contacting anti- The thermal efficiency and reliability that layer substantially increases electrothermal film heater are penetrated, also changes and is protected using vacuum chamber, thermal insulation layer etc. Warm, complicated, the method for high cost for improving the thermal efficiency.Particularly suitable as a kind of fish jar water body electric heating device.
Embodiment two:Such as Fig. 1, glass in order to prevent, ceramic matrix electrothermal film heating pipe fragmentation fragmentates, in scheme one When the first step makes electricity Jia Re Guan Group parts 1, the surface Tu of the electrothermal film heating pipe 1 is covered with the explosion-proof gel of 80 DEG C of heatproof Layer prevents glass or ceramic fragmentation from fragmentating;
Although electrothermal tube matrix 11 is a kind of heat safe insulation transfer substrate, such as quartz glass or ceramic material, pole Frangible splinter, after the surface Tu of electrothermal film heating pipe 1 covers high-temperature explosion-proof gel layer, the viscous force of high-temperature insulation gel layer is made With the glass fragment of self-destruction being sticked together, glass or ceramic fragmentation can be effectively prevent to fragmentate, flow into the peace brought in pipe Full hidden danger, remaining implementation process identical with embodiment one are not repeated.
Embodiment three:Such as Fig. 2, glass in order to prevent, ceramic matrix electrothermal film heating pipe is in dry combustion method " state(There is no liquid Body)When use, damage Electric radiant Heating Film or cause electrothermal tube matrix 11 explosion etc. dangerous situations occur, in one second step of scheme:It makes Connection component 3 in, configured with Lovell sensing devices 32 suddenly the Inlet and outlet water port of electric heating tube matrix 11 have and water penetrate through;
The electrothermal film heating pipe of existing structure in practical applications, the method for being all made of temperature signal power-off protection Electric radiant Heating Film, by The semiconductor feature of what electrothermal film material, this passive protection Fang Fa And efficiently cannot timely protect the reliability of Electric radiant Heating Film, And with Lovell sensing devices suddenly, the automatic protection functions powered off of cutting off the water supply substantially increase water flowing electricity relative to passive protection function The reliability of heating tube, remaining implementation process identical with embodiment one are not repeated.
Embodiment four:Such as Fig. 1.In order to ensure glass, the security reliability of ceramic matrix electrothermal film heating pipe, in scheme One first step:The electrode 13 of making includes power work end and electrical signal, and wherein electrical signal is two Draw the electrode of electric quantity change Xin.The two draw sealing hole and control of the electrode of electric quantity change Xin also by insulation crust Device assembly 3 processed connects, and judges whether the working condition of heater is normal, ensure that the peace of product by controller assemblies 3 Full reliability.Implementation process identical with embodiment one is not repeated.
Embodiment five:Such as Fig. 1.In order to improve glass, the security reliability of ceramic matrix electrothermal film heating pipe, in scheme One first step:The electric heating tube matrix 11 of making is covered with the double insulation body of two layers or more insulation material layers or reinforces exhausted The quartz ampoule or glass tube of edge body or two layers or more, ceramic tube matrix.Achieve the purpose that effectively water power is isolated.
We are using the glass matrix material of water flowing electric heating tube as the basic insulation of water flowing electric heating tube, the high temperature of covering Insulating gels layer is made or multilayer quartz ampoule matrix is superinsulation or reinforces insulating.It is damaged and ruptures in electrothermal tube matrix When, electrothermal film heating pipe Tapes can be effectively solved come hidden danger of leaking electricity.Implementation process identical with embodiment one is not repeated.
Embodiment six:Such as Fig. 1.In order to improve glass, the peace of the electric membranous layer 12 of ceramic matrix electrothermal film heating pipe Full reliability, the electrothermal semiconductor film layer 12 of making are a kind of.With the method for penetrating into trace element, change semiconductor thermoelectric film The formula of material, is made the Electric radiant Heating Film of negative temperature yarn number material, then with well known technology by electrothermal semiconductor film layer plating in stone The electric membranous layer of negative temperature yarn number material is made in English glass or ceramic matrix outer surface, with the raising of Electric radiant Heating Film operating temperature, The surface resistance of electric membranous layer increases, and achievees the purpose that the security reliability for protecting electric membranous layer 12.It is identical with embodiment one Implementation process is not repeated.
Embodiment seven:In practical applications, in order to change the leaving water temperature of water flowing electric heater, go out water speed, make Electric heating tube matrix 11 be two or more glass, ceramic matrix electrothermal film heating pipe, concatenated by joint for sealing connecting, And connects or water flowing electric heating device of the hybrid junction as products such as machine for rapid drinking or instant shower heaters.It is identical with embodiment one Implementation process is not repeated.
Finally, it should also be noted that it is listed above be only specific embodiments of the present invention son, can also there are many become Shape is considered as protection scope of the present invention.

Claims (10)

1. a kind of intelligent water communication electric heater, including electricity Jia Re Guan Group parts(1), Jue edge Wai Ke Group parts(2), connection component(3)Its It is characterized in that:The electricity Jia Re Guan Group parts(1), including electric heating tube matrix(11), electrothermal semiconductor film layer(12), electrode (13);The electrothermal semiconductor film layer(12)It is covered in electric heating tube matrix(11)Outer surface;The Jue edge Wai Ke Group parts(2) Inner surface, include and electrothermal semiconductor film layer(12)The non-contacting reflecting layer in outer surface(22);The connection component(3) It include the open end for being configured in electric heating tube matrix(14)With the open end of insulation crust(23)Air locking(31), make Obtain insulation crust(21)As a closure.
2. a kind of intelligent water communication electric heater according to claim l, it is characterised in that:The insulation crust(21)It is outer Face is by being equipped with intelligent control component(4), wherein intelligent control component(4)Including intelligent control device(41), intelligent control box (42);Wherein intelligent control device(41)Include microcontroller, temperature sensor, digital-scroll technique device, IC intelligent chips and The control device of other software or hardware.
3. a kind of intelligent water communication electric heater according to claim l, it is characterised in that:The connection component(3)In, packet Contain Lovell sensing devices suddenly(32)In electric heating tube matrix(11)Inlet and outlet water port have with water penetrate through, reach water flowing electric heating tube The purpose of automatic protection.
4. a kind of intelligent water communication electric heater according to claim l, it is characterised in that:The electrode(13), include Power work end and electrical signal.
5. a kind of intelligent water communication electric heater according to claim l, it is characterised in that:The electric heating tube matrix(11) It is two or more quartz ampoules or glass tube, ceramic tube matrix.
6. a kind of production method of intelligent water communication electric heater, it is characterised in that:Specific manufacture craft includes the following steps:
The first step:Make selection electricity Jia Re Guan Group parts(1);
Second step:Make selection Jue edge Wai Ke Group parts(2)With connection component(3);
Third walks:Make selection intelligent control component(4);
4th step:Assemble intelligent water communication electric heating tube device;
It is characterized in that:The intelligent control box(42)It is fixed on insulation crust(21)Outer surface;The insulation crust(21) Inner surface, be covered with and electrothermal semiconductor film layer(12)The non-contacting reflecting layer in outer surface(22), the insulation crust (21)It is a waterproof sealing shell.
7. a kind of intelligent water communication electric heater according to claim 6, it is characterised in that:The electrothermal film heating pipe(1) Matrix(11)Surface Tu is covered with the explosion-proof gel layer of 80 DEG C of heatproof.
8. a kind of production method of intelligent water communication electric heater according to claim 6, it is characterised in that:The electrothermal tube (1)It is the double insulation body or reinforcement insulator of the insulation material layer for covering two layers or more.
9. a kind of production method of intelligent water communication electric heater according to claim 6, it is characterised in that:The electrothermal tube (1)Matrix(11)It is two layers or more of quartz ampoule or glass tube, ceramic tube matrix.
10. a kind of production method of intelligent water communication electric heater according to claim 6, it is characterised in that:It is described partly to lead Body electric membranous layer(12)It is a kind of electric membranous layer of negative temperature yarn number material.
CN201710139140.0A 2017-03-01 2017-03-09 A kind of intelligent water communication electric heater and production method Pending CN108541090A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2017101184082 2017-03-01
CN201710118408 2017-03-01

Publications (1)

Publication Number Publication Date
CN108541090A true CN108541090A (en) 2018-09-14

Family

ID=63489761

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710139140.0A Pending CN108541090A (en) 2017-03-01 2017-03-09 A kind of intelligent water communication electric heater and production method

Country Status (1)

Country Link
CN (1) CN108541090A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110842472A (en) * 2019-11-06 2020-02-28 沈阳英伟自动化控制设备有限公司 Method and device for manufacturing assembled PTC semiconductor heating tube

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2783687Y (en) * 2005-04-15 2006-05-24 宁波索尔达面电热高科技有限公司 Electric heating pipe with double insulation protection
CN1802043A (en) * 2006-01-18 2006-07-12 吴明番 Water and electricity isolation liquid heating element
CN202452699U (en) * 2011-11-23 2012-09-26 山东润泰智能电气有限公司 Instantaneous water heater with six gears

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2783687Y (en) * 2005-04-15 2006-05-24 宁波索尔达面电热高科技有限公司 Electric heating pipe with double insulation protection
CN1802043A (en) * 2006-01-18 2006-07-12 吴明番 Water and electricity isolation liquid heating element
CN202452699U (en) * 2011-11-23 2012-09-26 山东润泰智能电气有限公司 Instantaneous water heater with six gears

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110842472A (en) * 2019-11-06 2020-02-28 沈阳英伟自动化控制设备有限公司 Method and device for manufacturing assembled PTC semiconductor heating tube

Similar Documents

Publication Publication Date Title
US8569663B2 (en) Small-sized pool and PTC heater for internal liquid heating
CN209346678U (en) A kind of heat generating device
CN108541090A (en) A kind of intelligent water communication electric heater and production method
CN109611940A (en) It is a kind of anticreep with anti-electromagnetic radiation graphene electric heating ground film and preparation method thereof
CN104214932B (en) The pre-heated calandria of water cooling
WO2017193506A1 (en) Heating and heat preservation joint device for petroleum pipe
CN212227201U (en) Heating module
CN102860899A (en) Electric heating hand warmer with ceramic electric heating substrate
CN200944672Y (en) Vacuum superconductor heating equipment
CN211244016U (en) Hand warmer with vacuum heat insulation structure
CN103267316A (en) Vacuum superconducting electric heater
CN1802043A (en) Water and electricity isolation liquid heating element
CN203443083U (en) Cold water pre-heating type heating body
CN203777138U (en) Automatic breathable explosion-proof electric hot-water bag
CN104602373B (en) A kind of Electrothermal ring
CN204350335U (en) A kind of Electrothermal ring
CN212644215U (en) Intelligent steel cylinder
CN209731619U (en) Heat generating device
CN208241911U (en) A kind of sheathed heater cold end structure
CN206488255U (en) A kind of semiconductor module group formula loop heating system
CN208029112U (en) A kind of heated by electrothermal film vacuum envelope
CN215053516U (en) Anti-freezing outdoor fire hydrant
CN216439003U (en) Energy-saving split electric chafing dish
CN202734549U (en) Heat insulation door for diffusion furnace
CN203303230U (en) Novel double-inserting type hot-water bag

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination