CN204227983U - Enhanced water evaporation heat-transfer pipe - Google Patents
Enhanced water evaporation heat-transfer pipe Download PDFInfo
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- CN204227983U CN204227983U CN201420694313.7U CN201420694313U CN204227983U CN 204227983 U CN204227983 U CN 204227983U CN 201420694313 U CN201420694313 U CN 201420694313U CN 204227983 U CN204227983 U CN 204227983U
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- water evaporation
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Abstract
The utility model provides the high enhanced water evaporation heat-transfer pipe of a kind of heat transfer efficiency, and comprise integrated body and fin, described fin is coiled in the external peripheral surface of body along the hand of spiral; Described fin is shaped to unified towards the bending inclination of body axial direction by cutter, the space between described fin and body forms the hole of evaporating; Described fin is provided with multiple wing groove along body circumferential direction, and hole is divided into multiple aperture by described wing groove.Enhanced water evaporation heat-transfer pipe of the present utility model, fin utilize cutter formed unified bending tilt shape, fin can not torsional deformation, void structure shape uniformity, make the formation of bubble consistent with growth course, thus stabilize the volatility of heat-transfer pipe, improve the heat exchange efficiency of heat-transfer pipe.
Description
Technical field
The utility model relates to a kind of heat-transfer pipe, especially a kind of enhanced water evaporation heat-transfer pipe.
Background technology
Along with the development of heat transfer enhancement technology, nowadays porous surface tube has been known by each Air-conditioning Enterprise and has been applied.The hole that outer surface processes can become the place that refrigerant forms bubble, and the shape in hole and size have direct impact to the maintenance generation of bubble and the growth of bubble.For the convenience of processing, outer fin shape is often processed as T-shaped.As patent CN200510134630.9 " a kind of electric cooling flooded copper-evaporating heat-exchanging pipe " and patent CN200910135786.7 " heat-transfer pipe of evaporator " fin are T-shaped fin (as Fig. 1), between fin, form the hole of evaporation and heat-exchange.In falling film evaporator, heat exchanger tube CN102121805A " enhanced heat transfer tube used for falling film evaporator " fin used is also T-shaped fin, and traditional T-shaped fin is easily formed, and is widely adopted.But the process of T-shaped fin be by vertical fin by the compacting of roller burnishing knife thus formed fin top smooth, in applanation process by force, vertical fins (in Fig. 1 2) may bend like this, and curved shape is irregular inconsistent, cause void shape, not of uniform sizely to cause, can not evaporation effect be ensured, even make evaporation and heat-exchange hydraulic performance decline.
Utility model content
The utility model provides the high enhanced water evaporation heat-transfer pipe of a kind of heat transfer efficiency.
Realize the enhanced water evaporation heat-transfer pipe of the utility model object, comprise integrated body and fin, described fin is coiled in the external peripheral surface of body along the hand of spiral; Described fin is shaped to unified towards the bending inclination of body axial direction by cutter, the space between described fin and body forms the hole of evaporating; Described fin is provided with multiple wing groove along body circumferential direction, and hole is divided into multiple aperture by described wing groove.
Described fin angle of inclination is 30 ~ 90 °.
Described fin is provided with 26 ~ 60 along the axial per inch of body, and helical angle is 0.3 ~ 2.5 °.
Described wing groove circumferentially distributes 60 ~ 160, and described aperture circumference spacing is 0.05 ~ 0.5 mm, and described aperture is high is 0.1 ~ 0.8 mm.
The inner surface of described body is provided with internal tooth, and described internal tooth is shape of threads, and the axial cross section of described internal tooth is trapezoidal, and the addendum angle scope of described internal tooth is 10 ~ 120 °.
The axis angle scope of described internal tooth and body is 20 ~ 70 °, and internal tooth number is 6 ~ 90, and the height of internal tooth is 0.1 ~ 0.6 mm.
The beneficial effect of enhanced water evaporation heat-transfer pipe of the present utility model is as follows:
Enhanced water evaporation heat-transfer pipe of the present utility model, fin utilize cutter formed unified bending tilt shape, fin can not torsional deformation, void structure shape uniformity, make the formation of bubble consistent with growth course, thus stabilize the volatility of heat-transfer pipe, improve the heat exchange efficiency of heat-transfer pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing evaporation heat transfer pipe.
Fig. 2 is the structural representation of enhanced water evaporation heat-transfer pipe embodiment 1 of the present utility model.
Fig. 3 is the structural representation of enhanced water evaporation heat-transfer pipe embodiment 2 of the present utility model.
Fig. 4 is the structural representation of heat exchanger tube evaporation and heat-exchange performance testing equipment.
Fig. 5 is evaporation and heat-exchange performance chart.
Detailed description of the invention
Embodiment 1
As shown in Figure 2, enhanced water evaporation heat-transfer pipe of the present utility model, comprises integrated body 1 and fin 2, and described fin 2 is coiled in the external peripheral surface of body 1 along the hand of spiral; Described fin 2 is shaped to unified towards the bending inclination of body 1 axial direction by cutter, the space between described fin 2 and body 1 forms the hole 3 of evaporating; Described fin 2 is provided with multiple wing groove 4 along body 1 circumferential direction, and hole 3 is divided into multiple aperture by described wing groove 4.
Described fin 2 is provided with 50 along the axial per inch of body 1, and helical angle is 1 °, and the height H 2 of described aperture is 0.4mm, and described wing groove 4 is 150, and the circumferential spacing T2 of described aperture is 0.1mm; The inclination angle beta of described fin is 45 °.
Described body 1 inner surface is provided with internal tooth 5, and described internal tooth 5 number is 52, and the height H 1 of described internal tooth 5 is 0.35 mm, is 45 ° with body axis angle, and addendum angle γ is 30 °.
Embodiment 2
As shown in Figure 3, the enhanced water evaporation heat-transfer pipe of the present embodiment is identical with principle with the basic structure of embodiment 1, unlike: the angle of inclination beta of described fin is 90 °.Directly flatten fin with press polish cutter with existing heat-transfer pipe to compare, fin vertical component can not be out of shape, void shape rule.
Enhanced water evaporation heat-transfer pipe of the present utility model, many holes that the gap of fin is formed, provide nucleus of boiling during cold-producing medium evaporation, thus enhance evaporation and heat-exchange; The circular passage that hole is connected to form along spiral, is beneficial to the flowing of cold-producing medium hoop, strengthens the disturbance of phase during cold-producing medium evaporation, thus strengthens heat transfer effect; Circumferential wing groove is adopted to be run through to be divided into by helical fin circumferentially and be divided into multiple aperture, make to there is axial and circumferential gap between each aperture, be beneficial to cold-producing medium and enter aperture, when ensureing that cold-producing medium evaporates, cold-producing medium can fill into endlessly, with the discharge of refrigerant vapour, make evaporation can continue to carry out, form continuously evaporation process.
Test is compared with the heat-transfer pipe of embodiment 1 and the existing heat-transfer pipe of accompanying drawing 1.
The outer tube diameter of heat-transfer pipe of the present utility model and existing heat-transfer pipe is 25.32mm, and the thickness of pipe wall of heat transfer segment is 0.635mm, and the width bottom hole is 0.406mm, fin height 0.6mm.The size of the fin of existing heat-transfer pipe, wing groove, internal tooth is identical with embodiment 1.
As shown in Figure 4, T is platinum resistance temperature sensor to testing equipment, and AP is absolute pressure transmitter, and F is intelligent electromagnetic flowmeter, 11 be condenser, 12 is evaporimeter, 13 for condenser test specimen, 14 evaporimeter test specimens, 15 is cooling water pipeline, and 16 is heating water pipeline.This testing equipment is made up of freon steam loop and cooling water, heating water return.There is cooling water to flow through in condenser developmental tube, in evaporimeter developmental tube, have heating water to flow through.Make evaporimeter produce freon steam by heating water return, then rise in condenser, under the effect of chilled(cooling) water return (CWR), freon steam is condensed into liquid outside developmental tube, then flows back in evaporimeter under gravity.Condenser, evaporimeter are the stainless steel cylinder of horizontal positioned, and tested pipe fitting is placed in cylindrical shell respectively.
Add up according to actual test data, the utility model compared with prior art evaporation and heat-exchange performance as shown in Figure 5, curve a is the heat exchange curve of the utility model heat exchanger tube, curve b is the heat exchange curve of existing heat exchanger tube.When adopting refrigerant R134a, the heat exchange heat transfer property of evaporation heat transfer pipe of the present utility model improves about 10% than the heat exchange heat transfer property of existing evaporating heat-exchanging pipe.
Embodiment recited above is only be described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the utility model designs spiritual prerequisite; the various distortion that the common engineers and technicians in this area make technical solutions of the utility model and improvement, all should fall in protection domain that claims of the present utility model determine.
Claims (6)
1. an enhanced water evaporation heat-transfer pipe, is characterized in that: comprise integrated body and fin, and described fin is coiled in the external peripheral surface of body along the hand of spiral; Described fin is shaped to unified towards the bending inclination of body axial direction by cutter, the space between described fin and body forms the hole of evaporating; Described fin is provided with multiple wing groove along body circumferential direction, and hole is divided into multiple aperture by described wing groove.
2. enhanced water evaporation heat-transfer pipe according to claim 1, is characterized in that: described fin angle of inclination is 30 ~ 90 °.
3. enhanced water evaporation heat-transfer pipe according to claim 1 and 2, is characterized in that: described fin is provided with 26 ~ 60 along the axial per inch of body, and helical angle is 0.3 ~ 2.5 °.
4. enhanced water evaporation heat-transfer pipe according to claim 1 and 2, is characterized in that: described wing groove circumferentially distributes 60 ~ 160, and described aperture circumference spacing is 0.05 ~ 0.5 mm, and described aperture is high is 0.1 ~ 0.8 mm.
5. enhanced water evaporation heat-transfer pipe according to claim 1 and 2, is characterized in that: the inner surface of described body is provided with internal tooth, described internal tooth is shape of threads, and the axial cross section of described internal tooth is trapezoidal, and the addendum angle scope of described internal tooth is 10 ~ 120 °.
6. enhanced water evaporation heat-transfer pipe according to claim 5, is characterized in that: the axis angle scope of described internal tooth and body is 20 ~ 70 °, and internal tooth number is 6 ~ 90, and the height of internal tooth is 0.1 ~ 0.6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694313.7U CN204227983U (en) | 2014-11-19 | 2014-11-19 | Enhanced water evaporation heat-transfer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694313.7U CN204227983U (en) | 2014-11-19 | 2014-11-19 | Enhanced water evaporation heat-transfer pipe |
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| Publication Number | Publication Date |
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| CN204227983U true CN204227983U (en) | 2015-03-25 |
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| CN201420694313.7U Active CN204227983U (en) | 2014-11-19 | 2014-11-19 | Enhanced water evaporation heat-transfer pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374224A (en) * | 2014-11-19 | 2015-02-25 | 金龙精密铜管集团股份有限公司 | Strengthened evaporation heat transferring tube |
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2014
- 2014-11-19 CN CN201420694313.7U patent/CN204227983U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374224A (en) * | 2014-11-19 | 2015-02-25 | 金龙精密铜管集团股份有限公司 | Strengthened evaporation heat transferring tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Strengthened evaporation heat transferring tube Effective date of registration: 20171215 Granted publication date: 20150325 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Wuxi Golden Dragon Kawamura Precision Tube Co., Ltd.|Chongqing Longyu Precision Copper Tube Co., Ltd.|Henan Longhui Copper Industry Co., Ltd.|Xinxiang Jinxiang Precision Pipe Fittings Co., Ltd.|Xinxiang Longteng Refrigeration Technology Co.,Ltd.|Jiangsu Canghuan Copper Industry Co.,Ltd.|Jinlong Precision Copper Pipe Group Co., Ltd.|Guangdong Longfeng Precise Copper Tube Co., Ltd. Registration number: 2017990001045 |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 404000 588 Airport Road, Wanzhou District, Chongqing (Wanzhou Economic Development Zone) Patentee after: Jinlong Precision Copper Pipe Group Co., Ltd. Address before: 453000 No. 191 Renmin West Road, Henan, Xinxiang Patentee before: Jinlong Precision Copper Pipe Group Co., Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190814 Granted publication date: 20150325 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Jinlong Precision Copper Pipe Group Co., Ltd. Registration number: 2017990001045 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Strengthened evaporation heat transferring tube Effective date of registration: 20190830 Granted publication date: 20150325 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Jinlong Precision Copper Pipe Group Co., Ltd. Registration number: Y2019990000127 |