CN101520285A - Efficient anti-scaling condensation pipe - Google Patents
Efficient anti-scaling condensation pipe Download PDFInfo
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- CN101520285A CN101520285A CN200910029215A CN200910029215A CN101520285A CN 101520285 A CN101520285 A CN 101520285A CN 200910029215 A CN200910029215 A CN 200910029215A CN 200910029215 A CN200910029215 A CN 200910029215A CN 101520285 A CN101520285 A CN 101520285A
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Abstract
The invention relates to an efficient anti-scaling condensation pipe. A thin-wall circular pipe is made of stainless steel, straight pipes with equal diameter are at two ends, a corrugated pipe is on the middle part, and the outer surface of the corrugated pipe is evenly distributed with raised pyramid lug bosses. The condensation pipe has the following advantages that: because fluid in the corrugated pipe disturbs intensively at low flow rate to generate turbulent flow which has complete flushing function on the pipe wall, the easy-scaling problem of the condensation pipe is well solved; simultaneously, due to surface curvature change and axial extension change of the corrugated pipe caused by temperature and larger linear expansibility difference of the stainless steel pipe wall and the scale, the scale is easy to fall off, self cleaning of the pipe is achieved, and the scale removing problem of the condensation pipe is well solved; moreover, the pyramid lug bosses on the outer surface of the corrugated pipe increase the heat exchange area and puncture condensate membranes, so drops are easy to form and drop quickly along a wave crest, and the vapor-liquid conversion time is quickened. The pipe has light weight, high strength and quick heat transfer, and is superior to the prior structural copper pipe in economic benefit, service life and the like.
Description
Technical field
The present invention relates to air-conditioning and refrigerator, a kind of efficient anti-scaling condensation pipe of more specifically saying so.
Background technology
The condenser of air-conditioning and refrigerator uses copper pipe to freeze as condenser pipe at present, it adopts isometrical light face copper pipe to carry out vapour-liquid heat exchange, with the hot gaseous cold-producing medium in the shell side, by the water quench liquefy in the copper pipe, periodic duty repeatedly reaches refrigeration.
Condenser pipe absorbs heat by cooling water in this condenser, carries out heat exchange.Its temperature of managing inside and outside wall is discrepant during work, since cooling water presentation layer stream mode when mobile in the isometrical light pipe, easily fouling; And the hot gaseous cold-producing medium runs into and will form one deck liquid film behind the condenser pipe and be adsorbed on tube outer surface; The two all hinders heat conducting carrying out.In order to improve heat exchanger effectiveness, people increase heat transfer area by every possible means.The someone proposes the condenser that a kind of ultra-fine footpath, tall and thin dentition row efficient heat transfer inner screw thread copper pipe are used for air-conditioning and refrigerator for this reason.
Ultra-fine footpath, tall and thin tooth, riffled tube have increased heat-exchange surface, have improved heat conduction efficiency.There is following defective but it is the same with existing isometrical bare copper tube: one, easy scaling, and because of its thin caliber inner screw thread, the easy fouling of tall and thin dental transition, easy-clear not, and reduced condensation effect after the fouling; Its two, because of the tall and thin teeth inner thread in thin footpath, increase the copper pipe wall thickness, strengthened production cost.
Summary of the invention
A kind of efficient anti-scaling condensation pipe that the present invention is directed to existing air-conditioning and the existing above-mentioned deficiency of refrigerator condenser pipe and design, it is implemented by following technical scheme:
Thin-wall circular tube, its two end of being made by stainless steel are isometrical straight tube, and mid portion is a bellows, and the bellows outer surface is evenly distributed with the rectangular pyramid boss.
Described ripple is to form by the Wave crest and wave trough of circular arc is tangent, is sinusoidal wave shape.
Described pipe thickness is less than 1.2 millimeters.
Described straight tube diameter is more than or equal to the external diameter at crest place.
The height of the rectangular pyramid boss projection of described projection is greater than pipe thickness
Less than thickness of pipe wall
Useful efficient of the present invention is:
1. the present invention adopts corrugated stainless steel tubing as condenser pipe, and cooling water flows in pipe, makes fluid promptly be subjected to strong disturbance under low speed, reach turbulence state, comprehensive souring is arranged, medium precipitation chance is few, fouling is difficulty relatively, has solved the problem of the easy fouling of condenser pipe preferably; Medium fluid improves the heat transfer coefficient of condenser pipe under turbulence state simultaneously.
Since when heat exchange the curvature of bellows inside surface change and bellows because of the linear expansion coefficient difference of the axial stretching quantitative changeization of expanding with heat and contract with cold and metal pipe-wall and incrustation scale greatly, the incrustation scale of a small amount of bonding is come off, reach self-cleaning in the pipe, solved condenser pipe removal of deposit problem preferably.
3. owing to adopted thin-wall stainless steel to make condenser pipe, heat transfer distances is short, and the wall thickness thermal resistance is little, and the medium fluid heat absorption is fast; Simultaneously in light weight, the intensity height; In addition, stainless steel tube is more cheap than copper pipe.So from economic benefit, result of use still is that aspects such as service life all are better than copper pipe.
4. because the bellows ripple forms by the Wave crest and wave trough of circular arc is tangent, be elastic construction, and even transition, reduced working stress, there is not machining stress to concentrate, solved the stress corrosion problem preferably, increased service life.
Since isometrical light pipe when heat exchange, cold-producing medium becomes liquid state by steam state, is condensate in light pipe surface and forms one deck liquid film, it has hindered the carrying out of heat exchange, must form big liquid pearl, could drip.And bellows outer surface rectangular pyramid boss has punctured liquid film, makes it form little tear drop rapidly, converges along sinusoidal wave crest and amasss into big tear drop drippage, has improved the condenser pipe heat exchanger effectiveness.
6. compare with same caliber light pipe, the bellows area is 2.5 times of straight tube areas, and the three-dimensional area of rectangular pyramid boss is nearly 4 times an of base area.Make the heat exchange area of condenser pipe improve greatly like this, remedied the deficiency of stainless steel heat conductivility difference, condensation effect has obtained large increase.
Description of drawings
Fig. 1 is a structural representation of the invention process.
Fig. 2 is the structural representation of the invention process in condenser.
Fig. 3 is a condenser pipe outer surface structure enlarged drawing of the invention process.
Among the figure, 1. straight tube, 2. bellows, 3. rectangular pyramid boss, 4. tube sheet, 5. condenser, 6. deflection plate.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Contrast Fig. 1, the condenser tube 5 of present embodiment is made by thin-wall stainless steel, and its two end is isometrical straight tube 1, and mid portion is a bellows 2, and tube sheet 4 is connected in straight tube 1 and Fig. 2 condenser 5, and its mode of connection is welding or expanded joint.The diameter of its straight tube 1 is more than or equal to the external diameter at bellows 2 crest places; Because condenser pipe is longer, deflection plate 6 to be installed in the condenser 5 have been supported, its span is generally 200～400 millimeters.Bellows 2 is a wholecircle arc structure, and ripple is by the crest of circular arc and trough is tangent forms and even transition, does not produce any machining stress, has avoided stress corrosion.Be evenly distributed with the rectangular pyramid boss 3 of projection at bellows 2 outer surfaces.When carrying out heat exchange, cold-producing medium is by the steam state liquefy, condensation is in the metal tube outer surface, formed one deck liquid film, rectangular pyramid boss 3 has punctured liquid film, makes it form little droplet rapidly, accumulates big droplet drippage along sinusoidal wave crest place, accelerate vapour-liquid transformation time, improved heat exchanger effectiveness.
1.0 millimeters stainless steel tubes of condenser pipe 5 usefulness thickness of present embodiment are made, be evenly distributed with protruding high 0.6 millimeter at its bellows 2 outer surfaces, the base is 0.8 millimeter * 0.8 a millimeter square rectangular pyramid boss 3, the tube wall thinnest part is 0.4 millimeter, increased the heat exchange area of condenser pipe 5 like this, shorten heat transfer distances, made the medium fluid heat absorption accelerate.
The condenser pipe 5 usefulness wall thickness of present embodiment are 1.0 millimeters, and Φ 19 stainless steel tubes are made, and bellows 2 crests are 23 millimeters of Φ, and trough is 19 millimeters of Φ, and ripple is wide to be 17 millimeters.Outer surface is evenly distributed with the rectangular pyramid boss 3 of projection, and inner surface is the tangent structure of smooth circular arc Wave crest and wave trough.Medium fluid is subjected to variable cross-section and flows under low speed, form positive differential pressure and Negative Pressure Difference, reaches turbulence state.On the one hand comprehensive souring is arranged, make medium precipitation chance few, fouling is difficulty relatively, has solved the problem of condenser pipe 5 easy foulings; Improved the inside and outside heat transfer coefficient of pipe on the other hand, the corrugated form of pipe increases endotherm area simultaneously, and the thermal efficiency improves.
The curvature on condenser pipe 5 its bellows 2 surfaces of present embodiment changes, expanding with heat and contract with cold causes that axial stretching amount and linear expansion coefficient are all greatly, all arc-shaped surface all strain can occur, forcing a small amount of incrustation scale cracking to come off is taken away by medium fluid, pipe is self-cleaning in reaching, and the fouling that has for this reason solved condenser pipe is difficult to the removing problem.
Adopt stainless steel to make condenser pipe, it is protruding especially to be evenly distributed with rectangular pyramid at the thinner bellows outer surface of wall thickness Behind the platform, its advantage is that the heat conduction is fast, thermal efficiency height, and while intensity height, corrosion-resistant, in light weight, its All are better than copper pipe in economic benefit, service life etc.
Claims (4)
1. efficient anti-scaling condensation pipe is characterized in that described pipe makes thin-wall circular tube by stainless steel, and two ends are isometrical straight tube, and mid portion is a bellows, and the bellows outer surface is evenly distributed with the rectangular pyramid boss of projection.
2. efficient anti-scaling condensation pipe according to claim 1 is characterized in that the bellows ripple forms by the Wave crest and wave trough of circular arc is tangent, and two end straight tube diameters are more than or equal to the external diameter at crest place.
3. efficient anti-scaling condensation pipe according to claim 1 is characterized in that pipe thickness is less than 1.2 millimeters.
4. efficient anti-scaling condensation pipe according to claim 1, the height of rectangular pyramid boss projection that it is characterized in that described projection are greater than thickness of pipe wall
Less than thickness of pipe wall
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029215A CN101520285A (en) | 2009-04-07 | 2009-04-07 | Efficient anti-scaling condensation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029215A CN101520285A (en) | 2009-04-07 | 2009-04-07 | Efficient anti-scaling condensation pipe |
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| CN101520285A true CN101520285A (en) | 2009-09-02 |
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| CN200910029215A Pending CN101520285A (en) | 2009-04-07 | 2009-04-07 | Efficient anti-scaling condensation pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390501A (en) * | 2016-11-09 | 2017-02-15 | 亚申科技研发中心（上海）有限公司 | Molecular distillation apparatus |
| CN107964492A (en) * | 2016-10-19 | 2018-04-27 | 南京九溪生物科技有限公司 | Distill the condenser of Brewing equipment |
| CN107964491A (en) * | 2016-10-19 | 2018-04-27 | 南京九溪生物科技有限公司 | Distill the cooling device of brewer |
| CN110375150A (en) * | 2018-09-20 | 2019-10-25 | 重庆共启科技有限公司 | A kind of automatically cleaning pipeline |
-
2009
- 2009-04-07 CN CN200910029215A patent/CN101520285A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964492A (en) * | 2016-10-19 | 2018-04-27 | 南京九溪生物科技有限公司 | Distill the condenser of Brewing equipment |
| CN107964491A (en) * | 2016-10-19 | 2018-04-27 | 南京九溪生物科技有限公司 | Distill the cooling device of brewer |
| CN106390501A (en) * | 2016-11-09 | 2017-02-15 | 亚申科技研发中心（上海）有限公司 | Molecular distillation apparatus |
| 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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Open date: 20090902 |