CN201331290Y - High-efficiency stainless steel heat exchange tube - Google Patents
High-efficiency stainless steel heat exchange tube Download PDFInfo
- Publication number
- CN201331290Y CN201331290Y CNU2008202411662U CN200820241166U CN201331290Y CN 201331290 Y CN201331290 Y CN 201331290Y CN U2008202411662 U CNU2008202411662 U CN U2008202411662U CN 200820241166 U CN200820241166 U CN 200820241166U CN 201331290 Y CN201331290 Y CN 201331290Y
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- CN
- China
- Prior art keywords
- stainless steel
- tube
- heat exchanger
- arc
- heat exchange
- 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.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/08—Tubular elements crimped or corrugated in longitudinal section
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a high-efficiency stainless steel heat exchange tube for a heat exchange tube of a heat exchanger, which comprises a stainless steel tube and is characterized in that an arc spiral groove with concave-convex corrugations is arranged on the tube wall of the stainless steel tube. The spiral angle beta of the arc spiral groove is 45 to 85 degrees, the depth of the arc spiral groove is 0.3 to 0.8 mm, and the circular arc radius of the arc spiral groove is 5 to 8 mm. The diameter of the stainless steel tube is 15 to 30 mm, the tube wall thickness is 0.5 to 1.5 mm, and two ends of the stainless steel tube are plain tube sections. The high-efficiency stainless steel heat exchange tube greatly improves the heat transfer property, corrosion resistance, vibration resistance, scaling resistance, easy maintenance, convenient installation and low cost, therefore, the high-efficiency stainless steel heat exchange tube is an ideal pipe workpiece for replacing a copper tube used in the prior heat exchanger.
Description
Technical field
The utility model relates to a kind of efficient stainless steel heat exchanger tube that is used for heat exchanger heat-exchanging tube.
Background technology
The performance of heat exchanger depends on the performance of heat exchanger tube to a great extent.At present, traditional mode is to adopt the various bronzing pipes of good heat conductivity as heat exchanger tube, this has not only improved the cost of product greatly, and copper pipe also exists problems such as poor, the shock-resistant corrosivity of anti-ammonia corrosion poor (silt, high velocity vapor or water droplet etc.), surface strength and low, the easy vibration of hardness, easy fouling.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that exists at above-mentioned prior art and a kind of efficient stainless steel heat exchanger tube is provided, and not only heat exchange efficiency height, cost are low for it, and decay resistance is strong, surface strength and hardness height.
The utility model is that the technical scheme that problem adopted of the above-mentioned existence of solution is: include stainless steel tube, its difference is to be provided with the arc helicla flute of concavo-convex ripple on the tube wall of stainless steel tube.
Press such scheme, described arc spiral fluted helixangle=45～85 °, degree of depth e=0.3～0.8mm, arc radius are 5～8mm.Described arc helicla flute can be single head or twin-feed spiral groove.
Press such scheme, the diameter of described stainless steel tube is 15～30mm, pipe thickness 0.5～1.5mm, and two of stainless steel tube is the light pipe section.
The beneficial effects of the utility model are: 1. the surface tension effects of stainless steel heat exchanger tube spiral root coagulating liq can make the thinning of liquid film that condenses that forms on it, or forms dropwise condensation, reduces thermal resistance; Strengthened the liquid film disturbance simultaneously, increased heat exchange area, in addition, because the effect of spiral channel, the condensation water cognition on the tube wall breaks away from cooling wall along helicla flute rapidly, helps condensation heat transfer.Therefore, than light pipe, the coefficient of heat transfer of helical groove heat exchange pipe improves greatly.2. single-phase media flow in the helical groove heat exchange pipe enhanced tube produces spiral flow and boundary layer separation flow at the tube inner wall face.Spiral flow exists the relative velocity that makes fluid and tube wall to increase, cause the fluid rotation simultaneously, make the boundary layer thickness attenuate and in the boundary layer, produce disturbance that the main effect of separated flow is the fluid in disturbance boundary layer, it is more even that this place's fluid is radially mixed, and strengthens thereby make to conduct heat.3. also to have corrosion resistance strong for stainless steel tube, mechanical strength and case hardness height, and vibration resistance, anti-fouling tendency are good, the characteristics of the low long service life of cost.
Description of drawings
Fig. 1 is the full sectional view of an embodiment of the utility model.
The specific embodiment
Further specify embodiment of the utility model below in conjunction with accompanying drawing; comprise stainless steel tube 1; stainless steel tube is a welded stainless steel pipe; can be welded by the stainless steel band turnup; promptly be pressed into the pipe of certain diameter by the continuous turnup of stainless steel band; no medicine melting welding becomes light pipe and heat-treats under gas shield then; use the moulding of mould roll extrusion arc helicla flute again; two of stainless steel tube is a light pipe section 2; length is generally 10-20mm; so that carrying out other parts of expand tube and heat exchanger connects; the arc helicla flute 3 that continuous concavo-convex ripple is all arranged on the other parts tube wall; use little round-corner transition between each helicla flute ripple, the specification D=Φ 25 * 0.5mm of stainless steel tube in the present embodiment, the height of projection of arc helicla flute ripple is 0.5mm; pitch is 10mm; helixangle=84 °, arc spiral fluted arc radius is 7mm, whole stainless steel tube outer surface should polish.
Claims (6)
1. an efficient stainless steel heat exchanger tube includes stainless steel tube, it is characterized in that being provided with on the tube wall of stainless steel tube the arc helicla flute of concavo-convex ripple.
2. by the described efficient stainless steel heat exchanger tube of claim 1, it is characterized in that described arc spiral fluted helixangle=45～85 °.
3. by claim 1 or 2 described efficient stainless steel heat exchanger tubes, it is characterized in that described stainless steel tube arc spiral fluted degree of depth e=0.3～0.8mm, arc radius is 5～8mm.
4. by claim 1 or 2 described efficient stainless steel heat exchanger tubes, the diameter that it is characterized in that described stainless steel tube is 15～30mm, pipe thickness 0.5～1.5mm, and two of stainless steel tube is the light pipe section.
5. by claim 1 or 2 described efficient stainless steel heat exchanger tubes, it is characterized in that stainless steel tube is a welded stainless steel pipe, be welded, use the moulding of mould roll extrusion arc helicla flute again by the stainless steel band turnup.
6. by claim 1 or 2 described efficient stainless steel heat exchanger tubes, its feature is single head or twin-feed spiral groove at described arc helicla flute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202411662U CN201331290Y (en) | 2008-12-30 | 2008-12-30 | High-efficiency stainless steel heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202411662U CN201331290Y (en) | 2008-12-30 | 2008-12-30 | High-efficiency stainless steel heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201331290Y true CN201331290Y (en) | 2009-10-21 |
Family
ID=41224672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202411662U Expired - Fee Related CN201331290Y (en) | 2008-12-30 | 2008-12-30 | High-efficiency stainless steel heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201331290Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949562A (en) * | 2015-06-29 | 2015-09-30 | 西安华广电站锅炉有限公司 | Inner and outer double-rifle pipe |
| CN109405620A (en) * | 2018-11-14 | 2019-03-01 | 浙江中达特钢股份有限公司 | A kind of efficient stainless steel jointless heat exchanger tube |
-
2008
- 2008-12-30 CN CNU2008202411662U patent/CN201331290Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949562A (en) * | 2015-06-29 | 2015-09-30 | 西安华广电站锅炉有限公司 | Inner and outer double-rifle pipe |
| CN109405620A (en) * | 2018-11-14 | 2019-03-01 | 浙江中达特钢股份有限公司 | A kind of efficient stainless steel jointless heat exchanger tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HUBEI GEDIAN DEVELOPMENT REGION GAOYUAN POWER EQUIPMENT TECHNOLOGY CO., LTD. Assignor: Huang Gang Contract record no.: 2011420000013 Denomination of utility model: High-efficiency stainless steel heat exchange tube Granted publication date: 20091021 License type: Exclusive License Record date: 20110315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |