CN104797020A - Spiral finned tube used in field of air conditioning and air supplying type electric heating - Google Patents
Spiral finned tube used in field of air conditioning and air supplying type electric heating Download PDFInfo
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- CN104797020A CN104797020A CN201510075148.6A CN201510075148A CN104797020A CN 104797020 A CN104797020 A CN 104797020A CN 201510075148 A CN201510075148 A CN 201510075148A CN 104797020 A CN104797020 A CN 104797020A
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- electric heating
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Abstract
The invention discloses a spiral finned tube used in the field of air conditioning and air supplying type electric heating. The spiral finned tube comprises a hollow base tube, wherein spirally distributed fins are arranged on a rotating surface of the outside of the base tube; the base tube and the fins are formed integrally; the material of the base tube is the same with that of the fins; and the base tube and the fins are made of aluminum or aluminum alloy. The spiral finned tube has the advantages that the base tube and the fins are formed integrally to form a whole structure, the spiral finned tube is high in vibration resistance and free of noises, the tensile strength and the surface hardness are improved, the consistency is high, the spiral finned tube is well-organized, and the self-cleaning performance is improved; the heat dissipation area of a cross section of the spiral finned tube is greater than that of a cross section of which the length is equal to that of the cross section of the spiral finned tube in the traditional technology by 30% or so; the heat resistance is low, and the heat dissipation efficiency is improved; the production efficiency is improved, per capita output can be increased eight times at least, the machining cost is reduced, the rate of graded products is increased, and the economic benefit is improved; and the products are optimized, and the whole products are attractive.
Description
Technical field
The present invention relates to a kind of spiral fin coil for air-conditioning and blowing-type field of electric heating and heating means thereof and electric heater, particularly relate to a kind of for family expenses or the air-conditioning of commercialization and the spiral fin coil of blowing-type field of electric heating and heating means thereof and electric heater.
Background technology
The existing spiral fin coil for family expenses, business air conditioner and blowing-type field of electric heating, comprises base tube and helical fin.Structurally, helical fin and base tube are independently processed, then are processed by riveting of rising around chip arranging welding or embedded arranging.Above structure has following problem: 1, expensive; 2, vibration resistance poor, have noise; 3, tensile strength and case hardness have much room for improvement; 4, thermal resistance is large, and radiating efficiency has much room for improvement; 5, first independent processing is affixed again, and production efficiency is low.On material, base tube may be different with helical fin material, mainly have stainless steel, copper, aluminium flake around sheet.The two coefficient of expansion is different, and cause the gap that there will be between the two, this can affect result of use and life-span.
Summary of the invention
The invention provides for the spiral fin coil of air-conditioning and blowing-type field of electric heating and heating means thereof and electric heater, which overcome in background technology for the deficiency existing for the helical fin of air-conditioning and blowing-type field of electric heating and heating means thereof.
One of the present invention's technical scheme adopted solving its technical problem is:
For the spiral fin coil of air-conditioning and blowing-type field of electric heating, comprise the base tube of a hollow, outside this base tube, the surface of revolution is provided with the fin of screw arrangement, and this base tube is one-body molded with fin and material is identical all selects aluminum or aluminum alloy.
Among one embodiment: this fin thickness is less than 0.4mm, the spacing of these adjacent two fins is 0.6-3.34mm, and this fin height is 1-10mm, and the thread pitch of this fin screw arrangement is 2 °-4.5 °.
Among one embodiment: outside this base tube, the rear ends of the surface of revolution is set to the Duan Hehou face of cylinder, front face of cylinder section respectively, the fin of above-mentioned spiral is between the section of the Duan Hehou face of cylinder, the front face of cylinder.
Among one embodiment: this fin is by the external cylindrical surface rolling straight forming at base tube.
The present invention solves two of the technical scheme adopted of its technical problem:
Comprise an electric heater for the above-mentioned spiral fin coil for air-conditioning and blowing-type field of electric heating, also comprise electric heating tube, this electric heating tube is packed in base tube and two terminals of electric heating tube stretch out the two-port of base tube respectively.
The present invention solves three of the technical scheme adopted of its technical problem:
For the processing method of the spiral fin coil of air-conditioning and blowing-type field of electric heating, it applies rolling equipment, this rolling equipment comprises a frame and three bundle rollers, these three rolls are connected to frame along equilateral triangle and can be connected to frame rotationally respectively with arranging, parallel and the vertical equilateral triangle of these three roll axis, this each roll is surrounded with annular knife outward; This processing method comprises:
Step 1, the columned pipe embryo of a preparation aluminum or aluminum alloy;
Step 2, pipe proembryo portion is along equilateral triangle center through rolling equipment, and pipe proembryo portion is smooth, cylindrical peripheral surface;
Step 3, prick rollers for three and all rotate, the uniform rotation of pipe embryo at the uniform velocity moves forward, and the knife in moving process on three rolls to act in the middle part of pipe embryo external cylindrical surface to roll out the fin of screw arrangement;
Step 4, prick roller for three and stop operating, pipe embryo at the uniform velocity moves forward, and pipe embryo rear portion is smooth, cylindrical peripheral surface.
Among one embodiment: the pivot center of this roll and pipe plumular axis line parallel.
The technical program is compared with background technology, and its tool has the following advantages:
1, outside base tube, the surface of revolution is provided with the fin of screw arrangement, base tube is one-body molded with fin and material is identical all selects aluminum or aluminum alloy, base tube and fin one-body molded and form overall structure, therefore overcome the shortcoming existing for background technology and produce following technique effect: a, vibration resistance are high, noiselessness, improve tensile strength and case hardness, consistency is good, tissue tight, and self-cleaning property is strengthened; B, area of dissipation expansion about 30% on the cross section of equal length compared with traditional handicraft; C, thermal resistance are little, improve radiating efficiency; D, production efficiency improve, and per capita output can improve more than 8 times, cuts down finished cost, and the percentage of A-class goods improves, and increases economic efficiency; E, optimize product, integral product is more attractive in appearance; F, base tube and helical fin material all select aluminum or aluminum alloy to avoid the two to cause the gap occurred between the two because the coefficient of expansion is different;
2, fin is by the external cylindrical surface rolling straight forming at base tube, and fin tensile strength and case hardness after cold rolling can increase, and intensity is high.
3, fin thickness is less than 0.4mm, and on the cross section of equal length, area of dissipation expands about 30%, and intensity is high.
4, this processing method comprises: step 1, the columned pipe embryo of a preparation aluminum or aluminum alloy; Step 2, pipe proembryo portion is along equilateral triangle center through rolling equipment, and pipe proembryo portion is smooth, cylindrical peripheral surface; Step 3, prick rollers for three and all rotate, the uniform rotation of pipe embryo at the uniform velocity moves forward, and the knife in moving process on three rolls to act in the middle part of pipe embryo external cylindrical surface to roll out the fin of screw arrangement; Step 4, prick roller for three and stop operating, pipe embryo at the uniform velocity moves forward, and pipe embryo rear portion is smooth, cylindrical peripheral surface, and production efficiency improves, and per capita output can improve more than 8 times, cuts down finished cost, and the percentage of A-class goods improves, and increases economic efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 depicts the structural representation of electric heater.
Embodiment
Please refer to Fig. 1, a kind of electric heater, comprise the spiral fin coil 10 for air-conditioning and blowing-type field of electric heating and electric heating tube 20.
This spiral fin coil 10, comprises the base tube 11 of a hollow, and outside this base tube 11, the surface of revolution is provided with the fin 12 of screw arrangement, and this base tube 11 is one-body molded with fin 12 and material is identical all selects aluminum or aluminum alloy.Among the present embodiment, this fin 12 is by the external cylindrical surface rolling straight forming at base tube 11; Outside this base tube 11, the rear ends of the surface of revolution is set to front face of cylinder section 13 and rear face of cylinder section 14 respectively, and the fin 12 of above-mentioned spiral is between front face of cylinder section 13 and rear face of cylinder section 14.
This fin 12 thickness is less than 0.4mm, and the spacing of these adjacent two fins 12 is 0.6-3.34mm, and this fin 12 is highly 1-10mm, and the thread pitch of this fin 12 screw arrangement is 2 °-4.5 °.
This electric heating tube 20 is packed in base tube 11 and two terminals 21 of electric heating tube 20 stretch out the two-port of base tube 11 respectively so that extraneous power supply.
Best, the base tube of this aluminium, aluminium alloy meet following performance: (1) base tube elongation is within 2%-50%; (2) within tensile strength 60-120Mpa; (3) case hardness controls webster hardness less than 20 degree; (4) wall thickness tolerance of base tube and outer diameter tolerance control at ± 0.02mm.Above-mentioned performance can make finned tube dense structure, and fin is firm.
For the processing method of the spiral fin coil of air-conditioning and blowing-type field of electric heating, it applies rolling equipment, this rolling equipment comprises a frame and three bundle rollers, these three rolls are connected to frame along equilateral triangle and can be connected to frame rotationally respectively with arranging, parallel and the vertical equilateral triangle of these three roll axis, this each roll is surrounded with annular knife outward; This processing method comprises:
Step 1, the columned pipe embryo of a preparation aluminum or aluminum alloy;
Step 2, pipe proembryo portion is along equilateral triangle center through rolling equipment, and pipe proembryo portion is smooth, cylindrical peripheral surface;
Step 3, prick rollers for three and all rotate, the uniform rotation of pipe embryo at the uniform velocity moves forward, and the knife in moving process on three rolls to act in the middle part of pipe embryo external cylindrical surface to roll out the fin of screw arrangement;
Step 4, prick roller for three and stop operating, pipe embryo at the uniform velocity moves forward, and pipe embryo rear portion is smooth, cylindrical peripheral surface.
Among one embodiment: the pivot center of this roll and pipe plumular axis line parallel.
This product processing method is processed without the need to relying on any metal sleeve, length can be long arbitrarily, and effective especially to small-bore aluminum or aluminum alloy pipe processing, fin thickness can control at below 0.4mm, pass can keep complete indeformable, without the need to the finishing to fin shape and tube wall.In the operation of rolling, any point on pipe embryo often rotates a circle and contacts once with three lippers, stand three processing of lipper, and metal is subject to the restriction of lipper shape to axial flow difficulty when pipe embryo warp-wise is compressed, being flowed by reverse lipper part warp-wise, is that fin increases thus forms finned tube.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (7)
1. for the spiral fin coil of air-conditioning and blowing-type field of electric heating, it is characterized in that: the base tube comprising a hollow, outside this base tube, the surface of revolution is provided with the fin of screw arrangement, and this base tube is one-body molded with fin and material is identical all selects aluminum or aluminum alloy.
2. the spiral fin coil for air-conditioning and blowing-type field of electric heating according to claim 1, it is characterized in that: this fin thickness is less than 0.4mm, the spacing of these adjacent two fins is 0.6-3.34mm, and this fin height is 1-10mm, and the thread pitch of this fin screw arrangement is 2 °-4.5 °.
3. the spiral fin coil for air-conditioning and blowing-type field of electric heating according to claim 1, it is characterized in that: outside this base tube, the rear ends of the surface of revolution is set to the Duan Hehou face of cylinder, front face of cylinder section respectively, the fin of above-mentioned spiral is between the section of the Duan Hehou face of cylinder, the front face of cylinder.
4. the spiral fin coil for air-conditioning and blowing-type field of electric heating according to claim 1, is characterized in that: this fin is by the external cylindrical surface rolling straight forming at base tube.
5. one kind comprises the electric heater of the spiral fin coil for air-conditioning and blowing-type field of electric heating described in claim 1 or 2 or 3 or 4, it is characterized in that: also comprise electric heating tube, this electric heating tube is packed in base tube and two terminals of electric heating tube stretch out the two-port of base tube respectively.
6. for the processing method of the spiral fin coil of air-conditioning and blowing-type field of electric heating, it is characterized in that: it applies rolling equipment, this rolling equipment comprises a frame and three bundle rollers, these three rolls are connected to frame along equilateral triangle and can be connected to frame rotationally respectively with arranging, parallel and the vertical equilateral triangle of these three roll axis, this each roll is surrounded with annular knife outward; This processing method comprises:
Step 1, the columned pipe embryo of a preparation aluminum or aluminum alloy;
Step 2, pipe proembryo portion is along equilateral triangle center through rolling equipment, and pipe proembryo portion is smooth, cylindrical peripheral surface;
Step 3, prick rollers for three and all rotate, the uniform rotation of pipe embryo at the uniform velocity moves forward, and the knife in moving process on three rolls to act in the middle part of pipe embryo external cylindrical surface to roll out the fin of screw arrangement;
Step 4, prick roller for three and stop operating, pipe embryo at the uniform velocity moves forward, and pipe embryo rear portion is smooth, cylindrical peripheral surface.
7. the processing method of the spiral fin coil for air-conditioning and blowing-type field of electric heating according to claim 6, is characterized in that: the pivot center of this roll and pipe plumular axis line parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075148.6A CN104797020A (en) | 2015-02-12 | 2015-02-12 | Spiral finned tube used in field of air conditioning and air supplying type electric heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075148.6A CN104797020A (en) | 2015-02-12 | 2015-02-12 | Spiral finned tube used in field of air conditioning and air supplying type electric heating |
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|---|---|
| CN104797020A true CN104797020A (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510075148.6A Pending CN104797020A (en) | 2015-02-12 | 2015-02-12 | Spiral finned tube used in field of air conditioning and air supplying type electric heating |
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| CN (1) | CN104797020A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079455A (en) * | 2018-07-20 | 2018-12-25 | 厦门华业新电热电器有限公司 | A kind of assembly method of electric heating tube cooling fin |
| CN110375150A (en) * | 2018-09-20 | 2019-10-25 | 重庆共启科技有限公司 | A kind of automatically cleaning pipeline |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0848576A2 (en) * | 1996-12-09 | 1998-06-17 | Sheathed Heating Elements Limited | Electric heating device |
| CN1759950A (en) * | 2004-10-14 | 2006-04-19 | 戚建萍 | Technique for fabricating copper tube with fins of high teeth |
| CN201657366U (en) * | 2009-10-19 | 2010-11-24 | 深圳卓先实业有限公司 | Heating tube for warm air blower |
| CN102019321A (en) * | 2010-10-29 | 2011-04-20 | 张家港市奋发机械有限公司 | Integral spiral finned tube rolling cutter and integral spiral finned tube rolling mill |
| CN201986181U (en) * | 2011-04-28 | 2011-09-21 | 先锋电器集团有限公司 | Electrothermal tube for radiator and radiator |
| CN202918524U (en) * | 2012-09-26 | 2013-05-01 | 佛山市顺德区北滘镇恒美电热器具有限公司 | Composite-type electric heating tube |
| CN204559909U (en) * | 2015-02-12 | 2015-08-12 | 厦门华业新电热电器有限公司 | For spiral fin coil and the electric heater of air-conditioning and blowing-type field of electric heating |
-
2015
- 2015-02-12 CN CN201510075148.6A patent/CN104797020A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0848576A2 (en) * | 1996-12-09 | 1998-06-17 | Sheathed Heating Elements Limited | Electric heating device |
| CN1759950A (en) * | 2004-10-14 | 2006-04-19 | 戚建萍 | Technique for fabricating copper tube with fins of high teeth |
| CN201657366U (en) * | 2009-10-19 | 2010-11-24 | 深圳卓先实业有限公司 | Heating tube for warm air blower |
| CN102019321A (en) * | 2010-10-29 | 2011-04-20 | 张家港市奋发机械有限公司 | Integral spiral finned tube rolling cutter and integral spiral finned tube rolling mill |
| CN201986181U (en) * | 2011-04-28 | 2011-09-21 | 先锋电器集团有限公司 | Electrothermal tube for radiator and radiator |
| CN202918524U (en) * | 2012-09-26 | 2013-05-01 | 佛山市顺德区北滘镇恒美电热器具有限公司 | Composite-type electric heating tube |
| CN204559909U (en) * | 2015-02-12 | 2015-08-12 | 厦门华业新电热电器有限公司 | For spiral fin coil and the electric heater of air-conditioning and blowing-type field of electric heating |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079455A (en) * | 2018-07-20 | 2018-12-25 | 厦门华业新电热电器有限公司 | A kind of assembly method of electric heating tube cooling fin |
| CN110375150A (en) * | 2018-09-20 | 2019-10-25 | 重庆共启科技有限公司 | A kind of automatically cleaning pipeline |
| CN110375150B (en) * | 2018-09-20 | 2021-07-30 | 重庆共启科技有限公司 | Self-cleaning pipeline |
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Application publication date: 20150722 |