CN104202856A - U-shaped electric heating tube - Google Patents
U-shaped electric heating tube Download PDFInfo
- Publication number
- CN104202856A CN104202856A CN201410426386.2A CN201410426386A CN104202856A CN 104202856 A CN104202856 A CN 104202856A CN 201410426386 A CN201410426386 A CN 201410426386A CN 104202856 A CN104202856 A CN 104202856A
- Authority
- CN
- China
- Prior art keywords
- pipe
- shaped
- electric heating
- shaped tube
- shaped pipe
- 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
Links
- 238000005485 electric heating Methods 0.000 title claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000006004 Quartz sand Substances 0.000 claims abstract description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000013078 crystal Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 3
- 238000007789 sealing Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
The invention discloses a U-shaped electric heating tube, which comprises a U-shaped tube. The U-shaped tube comprises two straight pipes and an elbow pipe for connecting the two straight pipes; the U-shaped tube is internally provided with a resistive wire used for heating; the resistive wire is connected with an electric-heating guide rod having one end thereof stretching out of the U-shaped tube; crystal magnesium oxide powder used for heat conduction and insulation is arranged at a gap between the U-shaped tube and the resistive wire; an anti-rust coating is arranged on the outer surface of the U-shaped tube; a far infrared radiating coating is also arranged on the outer surface of the anti-rust coating; a quartz sand layer is also sprayed between the anti-rust coating and the far infrared radiating coating; the two ends of the U-shaped tube are provided with sealing heads used for sealing the U-shaped tube; a waterproof layer is arranged at the places where the sealing heads are connected with the U-shaped tube; the thickness of the pipe wall of the elbow pipe is 1.2 times the thickness of the pipe wall of each straight pipe; the resistive wire in each straight pipe is spiral. The U-shaped electric heating tube has the advantages of being rational in structure, high in safety coefficient, good in use effect and long in service life.
Description
Technical field
The present invention relates to a kind of U-shaped electric heating tube, belong to a kind of electric heater unit.
Background technology
Electric heating tube is the special electric elements that are heat energy by electric energy conversion, because its heat efficiency is high, easy to use, installs simply, pollution-free, is widely used various heating occasions.
Heating tube in present technology, comprise metal shell, heater strip, in space, be filled with the magnesium oxide sand of good insulation heat-conducting property,, can there is the phenomenon that antirust coat comes off in the electric heating tube of this structure, cause reduce the useful life of heating tube after long-time use, in serious situation, can there are electrothermal tube corrosion fracture, the major safety risks such as electric leakage.
In addition, the environment for use of electric heating tube is generally more severe, is immersed in for a long time in the water of temperature, and the magnesium oxide in pipe has moisture absorption effect, and moisture is too much easily penetrated into electrothermal tube inside, and the heating wire short circuit of easily assuming office, affects quarrel work.
Moreover, the wall thickness of traditional heating tube is generally uniform, sweep for fear of electric heating tube is not easy to break in the process of processing and use, the bending radius of crooked position can not be too small, otherwise in BENDING PROCESS due to tube wall attenuation, and easily break under effect of stress, impact is normally worked.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of U-shaped electric heating tube, and it is rational in infrastructure, and coefficient of safety is high, and result of use is good, the electric heating tube of long service life.
For solving these technical problems of the prior art, technical scheme provided by the invention is:
A kind of U-shaped electric heating tube, comprise U-shaped pipe, in described U-shaped pipe, be provided with the resistance wire for heating, in described U-shaped pipe, described U-shaped pipe comprises two straight tubes and the bend pipe that connects two straight tubes, described resistance wire draws excellent connection with the electric heating that U-shaped pipe is stretched out in one end, the place, gap of described U-shaped pipe and resistance wire is provided with the crystal magnesium oxide powder for heat conduction and insulation, the outer surface of described U-shaped pipe is provided with antirust coat, it is characterized in that: the outer surface of described antirust coat is also provided with far infrared radiation coating, between described antirust coat and infrared radiating coating, also spray one deck quartz sand layer, the two ends of described U-shaped pipe are provided with the end socket for U-shaped pipe is sealed, the junction of described end socket and U-shaped pipe is provided with watertight composition.
Preferably, 1.2 times of the pipe thickness that the pipe thickness of described bend pipe is straight tube.
Preferably, the resistance wire in described straight tube is helical form.
Compare with existing technology in solution, the invention has the beneficial effects as follows: U-shaped electric heating tube of the present invention is rational in infrastructure, and coefficient of safety is high, result of use is good, long service life, by watertight composition, can avoid aqueous vapor to infiltrate and cause electrothermal tube electric leakage, safe; At antirust outer surface, establishing far infrared radiation coating, can be that U-shaped electric heating tube has good heat-radiating properties, can improve preferably conductivity of heat and the thermal radiation of electric heating tube; Between antirust coat and infrared radiating coating, spray one deck quartz sand layer, can increase the surface area of electric heating tube, heat-sinking capability is strengthened; Bend pipe has thicker tube wall in addition, can bear larger stress and do not rupture in Forging Process, cost-saving, and the radius bend of bend pipe can further dwindle, and then the space that U-shaped electric heating tube is occupied diminishes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1: electric heating draws rod; 2:U type pipe; 3: resistance wire; 4: crystal magnesium oxide powder; 5: antirust coat; 6: quartz sand layer; 7: antirust coat; 21: straight tube; 22: bend pipe.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Embodiment mono-:
Shown in accompanying drawing 1, a kind of U-shaped electric heating tube of the present invention, comprise U-shaped pipe 2, described U-shaped pipe 2 comprises two straight tubes 21 and the bend pipe 22 that connects two straight tubes, in described U-shaped pipe 2, be provided with the resistance wire 3 for heating, the electric heating that U-shaped pipe 2 is stretched out in described resistance wire 3 and one end draws rod 1 and is connected, the place, gap of described U-shaped pipe 2 and resistance wire 3 is provided with the crystal magnesium oxide powder 4 for heat conduction and insulation, the outer surface of described U-shaped pipe 2 is provided with antirust coat 5, the outer surface of described antirust coat 5 is also provided with far infrared radiation coating 7, between described antirust coat 5 and infrared radiating coating 7, also spray one deck quartz sand layer 6, the two ends of described U-shaped pipe 2 are provided with the end socket 8 for U-shaped pipe 2 is sealed, described end socket 8 is provided with watertight composition 9 with the junction of U-shaped pipe 2, the pipe thickness of described bend pipe 22 is 1.2 times of pipe thickness of straight tube 21, resistance wire 3 in described straight tube 21 is helical form.
Shown in accompanying drawing 1, a kind of U-shaped electric heating tube of the present invention, straight tube 21 and bend pipe 22 are linked together and are formed a U-shaped heating tube by the mode of welding, bend pipe 22 is to process by bending technique, for avoiding bend pipe 22 in Forging Process, bending part fracture, the tube wall of described bend pipe 22 has larger diameter, as preferably, the pipe thickness of described bend pipe 22 is 1.2 times of pipe thickness of straight tube 21; And the radius bend of bend pipe 22 can further be dwindled, and then the space that U-shaped electric heating tube is occupied diminishes, and can arrange more U-shaped electric heating tube in certain space.
At the two ends of U-shaped pipe 2, be provided with the end socket 8 for U-shaped pipe 2 is sealed, described end socket 8 is provided with watertight composition 9 with the junction of U-shaped pipe 2, can avoid aqueous vapor to infiltrate and cause electrothermal tube electric leakage, safe.
Outer surface at antirust coat 5 is also provided with far infrared radiation coating 7, has good heat-radiating properties, can improve preferably conductivity of heat and the thermal radiation of U-shaped electric heating tube.
Between antirust coat 5 and infrared radiating coating 7, also spray one deck quartz sand layer 6, can increase the surface area of U-shaped electric heating tube, heat-sinking capability is strengthened.
Claims (3)
1. a U-shaped electric heating tube, it is characterized in that: comprise U-shaped pipe (2), described U-shaped pipe (2) comprises two straight tubes (21) and the bend pipe (22) that connects two straight tubes (21), in described U-shaped pipe (2), be provided with the resistance wire (3) for heating, the electric heating that U-shaped pipe (2) is stretched out in described resistance wire (3) and one end draws rod (1) and is connected, the place, gap of described U-shaped pipe (2) and resistance wire (3) is provided with the crystal magnesium oxide powder (4) for heat conduction and insulation, the outer surface of described U-shaped pipe (2) is provided with antirust coat (5), the outer surface of described antirust coat (5) is also provided with far infrared radiation coating (7), between described antirust coat (5) and infrared radiating coating (7), also spray one deck quartz sand layer (6), the two ends of described U-shaped pipe (2) are provided with two end sockets (8) for U-shaped pipe (2) is sealed, described end socket (8) is provided with watertight composition (9) with the junction of U-shaped pipe (2).
2. U-shaped electric heating tube according to claim 1, is characterized in that: the pipe thickness of described bend pipe (22) is 1.2 times of pipe thickness of straight tube (21).
3. U-shaped electric heating tube according to claim 1, is characterized in that: the resistance wire (3) in described straight tube (21) is helical form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426386.2A CN104202856A (en) | 2014-08-27 | 2014-08-27 | U-shaped electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426386.2A CN104202856A (en) | 2014-08-27 | 2014-08-27 | U-shaped electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104202856A true CN104202856A (en) | 2014-12-10 |
Family
ID=52088061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410426386.2A Pending CN104202856A (en) | 2014-08-27 | 2014-08-27 | U-shaped electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104202856A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792390A (en) * | 2014-12-23 | 2016-07-20 | 中国电子科技集团公司第十八研究所 | Heating body for electric simulation isotope nuclear source |
| CN107263776A (en) * | 2017-06-28 | 2017-10-20 | 无锡市银杏塑业科技有限公司 | A kind of reactor heating tube |
| CN108036499A (en) * | 2017-11-17 | 2018-05-15 | 华南理工大学 | A kind of heating mineral water outdoor environmental protection bottle cap immediately |
| CN108811209A (en) * | 2018-04-24 | 2018-11-13 | 连云港格航工业设计有限公司 | A kind of quartz electrothermal tube being easily installed |
| CN109041304A (en) * | 2018-08-21 | 2018-12-18 | 镇江裕太防爆电加热器有限公司 | A kind of U-shaped electric heating tube |
| CN110505723A (en) * | 2019-09-17 | 2019-11-26 | 盛德鑫泰新材料股份有限公司 | A kind of high temperature heater (HTH) U-tube production technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006286372A (en) * | 2005-03-31 | 2006-10-19 | Metro Denki Kogyo Kk | Infrared ray carbon heater |
| CN203482421U (en) * | 2013-08-24 | 2014-03-12 | 泰州华祥冶金设备有限公司 | Electric heating pipe |
| CN103747546A (en) * | 2014-01-17 | 2014-04-23 | 华能无锡电热器材有限公司 | U-shaped electric heating tube |
-
2014
- 2014-08-27 CN CN201410426386.2A patent/CN104202856A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006286372A (en) * | 2005-03-31 | 2006-10-19 | Metro Denki Kogyo Kk | Infrared ray carbon heater |
| CN203482421U (en) * | 2013-08-24 | 2014-03-12 | 泰州华祥冶金设备有限公司 | Electric heating pipe |
| CN103747546A (en) * | 2014-01-17 | 2014-04-23 | 华能无锡电热器材有限公司 | U-shaped electric heating tube |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792390A (en) * | 2014-12-23 | 2016-07-20 | 中国电子科技集团公司第十八研究所 | Heating body for electric simulation isotope nuclear source |
| CN107263776A (en) * | 2017-06-28 | 2017-10-20 | 无锡市银杏塑业科技有限公司 | A kind of reactor heating tube |
| CN108036499A (en) * | 2017-11-17 | 2018-05-15 | 华南理工大学 | A kind of heating mineral water outdoor environmental protection bottle cap immediately |
| CN108811209A (en) * | 2018-04-24 | 2018-11-13 | 连云港格航工业设计有限公司 | A kind of quartz electrothermal tube being easily installed |
| CN109041304A (en) * | 2018-08-21 | 2018-12-18 | 镇江裕太防爆电加热器有限公司 | A kind of U-shaped electric heating tube |
| CN110505723A (en) * | 2019-09-17 | 2019-11-26 | 盛德鑫泰新材料股份有限公司 | A kind of high temperature heater (HTH) U-tube production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |