CN206004924U - A kind of electric heating tube - Google Patents
A kind of electric heating tube Download PDFInfo
- Publication number
- CN206004924U CN206004924U CN201621042550.0U CN201621042550U CN206004924U CN 206004924 U CN206004924 U CN 206004924U CN 201621042550 U CN201621042550 U CN 201621042550U CN 206004924 U CN206004924 U CN 206004924U
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- China
- Prior art keywords
- heater strip
- metal forming
- supply line
- current supply
- heating tube
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Abstract
The utility model discloses a kind of electric heating tube, this electric heating tube includes housing, helical form heating tape and phase-transition heat-storage body, and helical form heating tape is fixedly installed in the housing；Phase-transition heat-storage body is filled in the housing；Helical form heating tape includes the first heater strip, second heater strip, 3rd heater strip, first metal forming and the second metal forming, first metal forming and the second metal forming are oppositely arranged and fit together mutually, first heater strip, second heater strip and the 3rd heater strip are clipped between the first metal forming and the second metal forming, first metal forming and the second metal forming winding curl, first heater strip, second heater strip and the 3rd heater strip respectively with the first current supply line, second current supply line and the 3rd current supply line connect, first current supply line, second current supply line and the 3rd current supply line control described first heater strip independently of one another, second heater strip and the heating power of the 3rd heater strip.
Description
Technical field
This utility model belongs to electric-heating technology field and in particular to a kind of electric heating tube.
Background technology
Electric heating tube (also known as electrically heated rod) is the electric elements converting electrical energy into heat energy, is the key of field of electric heating
Part, is widely used in the fields such as household electrical appliances, automobile, weaving, food, machine-building, water boiling implement.Existing electric heating tube be with
Metal tube is shell, the central axial distributing auger lectrothermal alloy wire (nickel chromium triangle, ferrochrome) along along pipe, and the filling of pipe internal pore has
The dielectric magnesium oxide sand of Thermal conductivity or particulate composition, mouth of pipe two ends silica gel or pottery containing magnesium oxide sand
Porcelain seals.
Magnesium oxide sand is the very high solid of fusing point, heat conduction and non-conductive, its effect is that the heat producing heating wire is led
Metal pipe outer wall.The existing electric heating tube generally existing power consumption using magnesium oxide sand as heat-conducting medium is high, thermal conversion efficiency is low
And the defect that heat transfer efficiency is low.For the traditional electric heating tube doing implant using magnesium oxide sand, such as when input power is
1500 watt-hours, heating tube wall temperature is also merely able to reach about 290 degrees Celsius.At present country and social desirability energy-saving and
Focus under the overall background of environmental conservation, the magnesium oxide sand as the heat-conducting medium of electric heating tube increasingly can not meet reality
Demand.
In addition, electric heating tube of the prior art adopts heating wire as heater element, heating wire is typically complete one
Root and be wrapped in the periphery of passive rod or pipe, this electric heating tube cannot accurately control heating-up temperature, and
Once heating wire ruptures, will lead to whole electric heating tube cannot normal work it is necessary at once change whole electric heating tube, give
User causes inconvenience.
The Chinese patent literature of Publication No. CN104344541A discloses a kind of electric heater for heating system, its
Used in electric heating tube with metal tube as shell, central axial distributing auger lectrothermal alloy wire, the space in pipe along along pipe
Middle filling magnesium oxide sand, mouth of pipe two ends silica gel or ceramic seal.The electric heating tube that this electric heater uses uses magnesium oxide sand
As heat-conducting medium.
The Chinese patent literature of Publication No. CN103442465A discloses a kind of electric heating tube, including housing, in housing
It is provided with heater strip, heat-conducting insulation material is filled in described heater strip periphery, and wherein said heat-conducting insulation material is by magnesium oxide sand, filling
Particulate matter forms, and described filler particle is made up of silicone rubber, aluminium oxide, titanium dioxide and ceramic particle, and thermal conductivity highest can
Reach 1.98-3.1W/M DEG C.
The Chinese patent literature of Publication No. CN102740518A discloses a kind of defrosting heating tube, and body material is aluminum
Paper tinsel, is provided with heating wire, the material of heating wire is ferrochrome, in pipe internal pore padding and compacting magnesium oxide sand in body.This electricity
Heat-generating pipe equally employs magnesium oxide sand as heat-conducting medium.
There are the thermal conversion efficiency improving electric heating tube further and heat transfer efficiency in this area and reduce electrical heating further
Pipe power consumption, improve the heating control precision of electric heating tube, reduce the tight demand of fault rate it is therefore desirable to in prior art
The structure of electric heating tube make further improvement.
Utility model content
The purpose of this utility model is to provide a kind of electric heating tube and preparation method thereof, and the technical problem of all solutions is
How to improve the heating control precision of electric heating tube, reduce fault rate and how to reduce electric heating tube power consumption.
For achieving the above object, electric heating tube described in the utility model includes housing, helical form heating tape and phase-transition heat-storage
Body, described helical form heating tape is fixedly installed in the housing, and one end end of helical form heating tape is exposed outside housing；Described
Phase-transition heat-storage body is filled in the housing, and phase-transition heat-storage body is full of the clearance space between housing and helical form heating tape；Institute
State helical form heating tape and include the first heater strip, the second heater strip, the 3rd heater strip, the first metal forming and the second metal forming, the
One metal forming and the second metal forming are oppositely arranged and fit together mutually, described first heater strip, the second heater strip and the 3rd
Heater strip is clipped between the first metal forming and the second metal forming, and described first metal forming and the second metal forming wind curl,
Described first heater strip, the second heater strip and the 3rd heater strip are supplied with the first current supply line, the second current supply line and the 3rd respectively
Electric lead connects, and described first current supply line, the second current supply line and the 3rd current supply line control described first independently of one another
The heating power of heater strip, the second heater strip and the 3rd heater strip；It is provided between described first metal forming and the second metal forming
Adhesive phase, described first heater strip, the second heater strip and the 3rd heater strip are embedded in adhesive phase, the first metal forming and
Two metal formings are bonded together by adhesive phase；First heater strip, the second heater strip and the 3rd heater strip not with the first metal
Paper tinsel and the contact of the second metal forming.
Described first heater strip is connected with the first current supply line by the first joint, and described second heater strip connects by second
Head is connected with the second current supply line, and described 3rd heater strip is connected with the 3rd current supply line by the 3rd joint.
Described first joint, the second joint and the 3rd joint are arranged between the first metal forming and the second metal forming, and first
Described first joint, the second joint and the 3rd joint are intactly covered by metal forming and the second metal forming.
Preferably, the thickness of described first metal forming and the second metal forming is 200-300 μm.
Preferably, the width of described first metal forming and the second metal forming is 20-35mm.
Preferably, a diameter of 300-450 μm of described first heater strip, the second heater strip and the 3rd heater strip.
Described phase-transition heat-storage body is mixed by the Polyethylene Glycol of 10-20 mass % and the sal glauberi solution of 80-90 mass %
Conjunction forms, and wherein in sal glauberi solution, the concentration of sodium sulfate is 20-30 mass %.
Described phase-transition heat-storage body is mixed by the Polyethylene Glycol of 10-20 mass % and the magnesium chloride hexahydrate solution of 80-90 mass %
Conjunction forms, and wherein the concentration of magnesium chloride hexahydrate Chlorine in Solution magnesium is 5-10 mass %.
The preparation method of electric heating tube described in the utility model, comprises the steps：
Step one：A layer of adhesive layer is evenly coated with the first metal forming, by the first heater strip, the second heater strip and
3rd heater strip passes through the first joint, the second joint and the 3rd joint and the first current supply line, the second current supply line and the respectively
After three current supply lines connect, bury parallel to each other within the adhesive layer, the second metal forming alignment is pressed in the first metal
On paper tinsel, make the first metal forming and the second metal forming by the first heater strip, the second heater strip and the 3rd heater strip, the first joint,
Two joints and the 3rd joint, the first current supply line, the second current supply line and the 3rd current supply line and adhesive phase are clipped in the middle,
The first metal forming and the second metal forming is made to be bonded together by adhesive phase；First current supply line, the second current supply line and
The joint being connected with external power source is reserved in the end of three current supply lines；After standing 45 minutes, by the be bonded together first gold medal
Belong to paper tinsel and the second metal forming winding curl, make helical form heating tape；
Step 2：By the sal glauberi solution mix homogeneously of the Polyethylene Glycol of 10-20 mass % and 80-90 mass %,
Wherein in sal glauberi solution, the concentration of sodium sulfate is 20-30 mass %；Or by the Polyethylene Glycol of 10-20 mass % and
The magnesium chloride hexahydrate solution mix homogeneously of 80-90 mass %, the wherein concentration of magnesium chloride hexahydrate Chlorine in Solution magnesium are 5-10 matter
Amount %, makes phase-transition heat-storage body；
Step 3：The helical form heating tape that step one is made is fixedly installed in the housing, in the heating of housing internal coiling shape
The phase-transition heat-storage body made full of step 2 in clearance space between band and housing, sealing, make described electric heating tube.
This utility model has the advantage that：Electric heating tube described in the utility model and preparation method thereof utilizes many electricity
Heated filament group curl heating tape, every heating wire all can individually control, and improves the heating control precision of electric heating tube, with
The heating wire of Shi Butong is independent of each other, and a heating wire fracture is not result in that whole electric heating tube is scrapped, and decreases fault rate, with
When electric heating tube in be provided with phase-transition heat-storage body, effectively reduce electric heating tube power consumption.
Brief description
Fig. 1 is the structural representation of electric heating tube described in the utility model.
Fig. 2 is the cross-sectional view of helical form heating tape described in the utility model.
Specific embodiment
Following examples are used for this utility model is described, but are not limited to scope of the present utility model.
As depicted in figs. 1 and 2, electric heating tube described in the utility model includes housing 7, helical form heating tape 1 and phase transformation storage
Hot body 5, described helical form heating tape 1 is fixedly installed in housing 7, one end end of helical form heating tape 1 expose housing 7 it
Outward；Described phase-transition heat-storage body 5 is filled in housing 7, and phase-transition heat-storage body 5 is full of between housing 7 and helical form heating tape 1
Clearance space；Described helical form heating tape 1 includes the first heater strip 2a, the second heater strip 2b, the 3rd heater strip 2c, the first metal
Paper tinsel 4 and the second metal forming 6, the first metal forming 4 and the second metal forming 6 are oppositely arranged and fit together mutually, and described first adds
Heated filament 2a, the second heater strip 2b and the 3rd heater strip 2c are clipped between the first metal forming 4 and the second metal forming 6, described first gold medal
Belong to paper tinsel 4 and the second metal forming 6 winding curl, described first heater strip 2a, the second heater strip 2b and the 3rd heater strip 2c divide
It is not connected with the first current supply line 8a, the second current supply line 8b and the 3rd current supply line 8c, described first current supply line 8a, second
Current supply line 8b and the 3rd current supply line 8c controls described first heater strip 2a, the second heater strip 2b and Acanthopanan trifoliatus (L.) Merr. independently of one another
The heating power of heated filament 2c；As shown in Fig. 2 being provided with adhesive phase 10 between described first metal forming 4 and the second metal forming 6,
Described first heater strip 2a, the second heater strip 2b and the 3rd heater strip 2c are embedded in adhesive phase 10, the first metal forming 4 and
Two metal formings 6 are bonded together by adhesive phase 10；First heater strip, the second heater strip and the 3rd heater strip not with the first gold medal
Belong to paper tinsel and the contact of the second metal forming.
Described first heater strip 2a is connected with the first current supply line 8a by the first joint 3a, and described second heater strip 2b leads to
Cross the second joint 3b to be connected with the second current supply line 8b, described 3rd heater strip 2c passes through the 3rd joint 3c and the 3rd current supply line
8c connects.
Described first joint 3a, the second joint 3b and the 3rd joint 3c be arranged on the first metal forming 4 and the second metal forming 6 it
Between, described first joint 3a, the second joint 3b and the 3rd joint 3c are intactly covered by the first metal forming 4 and the second metal forming 6.
Preferably, the thickness of described first metal forming 4 and the second metal forming 6 is 200-300 μm.
Preferably, the width of described first metal forming 4 and the second metal forming 6 is 20-35mm.
Preferably, described first heater strip 2a, a diameter of 300-450 μm of the second heater strip 2b and the 3rd heater strip 2c.
Described phase-transition heat-storage body 5 is mixed by the Polyethylene Glycol of 10-20 mass % and the sal glauberi solution of 80-90 mass %
Conjunction forms, and wherein in sal glauberi solution, the concentration of sodium sulfate is 20-30 mass %.
Described phase-transition heat-storage body 5 is mixed by the Polyethylene Glycol of 10-20 mass % and the magnesium chloride hexahydrate solution of 80-90 mass %
Conjunction forms, and wherein the concentration of magnesium chloride hexahydrate Chlorine in Solution magnesium is 5-10 mass %.
The preparation method of electric heating tube described in the utility model, comprises the steps：
Step one：First metal forming 4 is evenly coated with a layer of adhesive layer 10, by the first heater strip 2a, second plus
Heated filament 2b and the 3rd heater strip 2c passes through the first joint 3a, the second joint 3b and the 3rd joint 3c and the first current supply line respectively
After 8a, the second current supply line 8b and the 3rd current supply line 8c connect, it is embedded in parallel to each other in adhesive phase 10, by
Two metal forming 6 alignment be pressed in the first metal forming 4, make the first metal forming 4 and the second metal forming 6 by the first heater strip 2a, second
Heater strip 2b and the 3rd heater strip 2c, the first joint 3a, the second joint 3b and the 3rd joint 3c, the first current supply line 8a, second
Current supply line 8b and the 3rd current supply line 8c and adhesive phase 10 are clipped in the middle, and so that the first metal forming 4 and the second metal forming 6 is led to
Cross adhesive phase 10 to be bonded together；First current supply line 8a, the second current supply line 8b and the 3rd current supply line 8c end pre-
Stay the joint being connected with external power source；After standing 45 minutes, by the be bonded together first metal forming 4 and the second metal forming 6
Winding curl, makes helical form heating tape；
Step 2：By the sal glauberi solution mix homogeneously of the Polyethylene Glycol of 10-20 mass % and 80-90 mass %,
Wherein in sal glauberi solution, the concentration of sodium sulfate is 20-30 mass %；Or by the Polyethylene Glycol of 10-20 mass % and
The magnesium chloride hexahydrate solution mix homogeneously of 80-90 mass %, the wherein concentration of magnesium chloride hexahydrate Chlorine in Solution magnesium are 5-10 matter
Amount %, makes phase-transition heat-storage body 5；
Step 3：The helical form heating tape that step one is made is fixedly installed in housing 7, adds in housing 7 internal coiling shape
The phase-transition heat-storage body 5 made full of step 2 in clearance space between the torrid zone 1 and housing 7, sealing, make this utility model institute
State electric heating tube.
Phase-transition heat-storage body 5 described in the utility model is in the heat derives sending electric heating tube internal coiling shape heating tape extremely
Can undergo phase transition during heating tube housing exterior walls, thus being obviously improved heat conduction efficiency.Phase transformation described in the utility model stores
The thermal conductivity of hot body 5 can reach 8.15-9.34W/m K, and latent heat of phase change can reach 192-243J/g.
Described phase-transition heat-storage body 5 its volume before and after undergoing phase transition will not occur significant changes, will not be to electric heating tube
Inner walls cause extra pressure and lead to tube wall to rupture, thus ensure that the use safety of sealed electric heating tube.Using this
The electric heating tube of phase-transition heat-storage body, through 5000 energising work tests, product runs safety and stability, packing material does not occur
Leak, and heat transfer efficiency and power consumption all substantially do not deteriorate.
Electric heating tube described in the utility model, compared to magnesium oxide sand traditional electric heating tube as heat-conducting medium is used, shows
Work improves thermal conversion efficiency and heat conduction efficiency, and compared to traditional electric heating tube, heat produced by specific load is significantly
Improve such that it is able to reduce the power consumption of electric heating tube further.For example, for the tradition electricity doing implant using magnesium oxide sand
Heating tube, when input power is 1500 watt-hours, heating tube wall temperature is also merely able to reach about 290 degrees Celsius.And by above-mentioned biography
After magnesium oxide sand in system electric heating tube replaces with phase-transition heat-storage body of the present utility model, reach 200 watt-hours in input power, electricity
The temperature of heating tube housing exterior walls can reach 300 degrees centigrade, in some specific embodiments, has reached 296-
343 degrees Celsius；When input power reaches 300 watt-hours, the temperature of electric heating tube housing exterior walls can reach 500 degrees centigrade,
In some specific embodiments, reach 485-539 degree Celsius.It can be seen that, the technical solution of the utility model can make electricity
The notable energy-conservation of heating tube, improves thermal conversion efficiency and heat conduction efficiency.
Although, above with general explanation and specific embodiment, detailed description is made to this utility model,
On the basis of this utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from this utility model spirit, belonging to this utility model will
Seek the scope of protection.
Claims (6)
1. a kind of electric heating tube, described electric heating tube include housing, helical form heating tape and phase-transition heat-storage body it is characterised in that
Described helical form heating tape is fixedly installed in the housing, and the two ends end of helical form heating tape is exposed outside housing；Described phase
Become heat storage to fill in the housing, and phase-transition heat-storage body is full of the clearance space between housing and helical form heating tape；Described
Helical form heating tape includes the first heater strip, the second heater strip, the 3rd heater strip, the first metal forming and the second metal forming, and first
Metal forming and the second metal forming are oppositely arranged and fit together mutually, described first heater strip, the second heater strip and Acanthopanan trifoliatus (L.) Merr.
Heated filament is clipped between the first metal forming and the second metal forming, and described first metal forming and the second metal forming wind curl, institute
State the first heater strip, the second heater strip and the 3rd heater strip respectively with the first current supply line, the second current supply line and the 3rd power supply
Wire connects, and described first current supply line, the second current supply line and the 3rd current supply line control described first to add independently of one another
The heating power of heated filament, the second heater strip and the 3rd heater strip；It is provided with viscous between described first metal forming and the second metal forming
Mixture layer, described first heater strip, the second heater strip and the 3rd heater strip are embedded in adhesive phase, the first metal forming and second
Metal forming is bonded together by adhesive phase, the first heater strip, the second heater strip and the 3rd heater strip not with the first metal forming
Contact with the second metal forming.
2. electric heating tube as claimed in claim 1 is it is characterised in that described first heater strip passes through the first joint and the first confession
Electric lead connects, and described second heater strip is connected with the second current supply line by the second joint, and described 3rd heater strip is by the
Three joints are connected with the 3rd current supply line.
3. electric heating tube as claimed in claim 2 is it is characterised in that described first joint, the second joint and the 3rd joint set
Put between the first metal forming and the second metal forming, the first metal forming and the second metal forming are by described first joint, the second joint
Intactly cover with the 3rd joint.
4. electric heating tube as claimed in claim 3 is it is characterised in that the thickness of described first metal forming and the second metal forming is
200-300μm.
5. electric heating tube as claimed in claim 4 is it is characterised in that the width of described first metal forming and the second metal forming is
20-35mm.
6. electric heating tube as claimed in claim 5 is it is characterised in that described first heater strip, the second heater strip and Acanthopanan trifoliatus (L.) Merr.
A diameter of 300-450 μm of heated filament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621042550.0U CN206004924U (en) | 2016-09-07 | 2016-09-07 | A kind of electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621042550.0U CN206004924U (en) | 2016-09-07 | 2016-09-07 | A kind of electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206004924U true CN206004924U (en) | 2017-03-08 |
Family
ID=58194227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621042550.0U Expired - Fee Related CN206004924U (en) | 2016-09-07 | 2016-09-07 | A kind of electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206004924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382399A (en) * | 2018-12-19 | 2019-02-26 | 长沙凯天工研院环保服务有限公司 | Auxiliary heating system for extraction tube in the reparation of soil in-situ thermal desorption |
-
2016
- 2016-09-07 CN CN201621042550.0U patent/CN206004924U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382399A (en) * | 2018-12-19 | 2019-02-26 | 长沙凯天工研院环保服务有限公司 | Auxiliary heating system for extraction tube in the reparation of soil in-situ thermal desorption |
| CN109382399B (en) * | 2018-12-19 | 2021-02-26 | 长沙工研院环保有限公司 | Auxiliary heating system for extraction pipe in soil in-situ thermal desorption repair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20210907 |