CN1109161A - Preparation material and method of dropwise condensation pipe - Google Patents
Preparation material and method of dropwise condensation pipe Download PDFInfo
- Publication number
- CN1109161A CN1109161A CN 94110137 CN94110137A CN1109161A CN 1109161 A CN1109161 A CN 1109161A CN 94110137 CN94110137 CN 94110137 CN 94110137 A CN94110137 A CN 94110137A CN 1109161 A CN1109161 A CN 1109161A
- Authority
- CN
- China
- Prior art keywords
- manufacturing
- ion bombardment
- metal
- molybdenum
- polytetrafluoroethylene
- 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
- 239000000463 material Substances 0.000 title claims abstract description 28
- 238000009833 condensation Methods 0.000 title claims abstract description 12
- 230000005494 condensation Effects 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000002360 preparation method Methods 0.000 title claims abstract description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 27
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 17
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 17
- 238000010849 ion bombardment Methods 0.000 claims abstract description 15
- 239000011733 molybdenum Substances 0.000 claims abstract description 15
- 229910052786 argon Inorganic materials 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000006558 Dental Calculus Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- Manufacture Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a material and a method for preparing a dropwise condensation pipe. The preparation material of the condenser comprises a metal heat exchange tube material, and polytetrafluoroethylene or molybdenum is mixed with the metal heat exchange tube material for manufacturing the dropwise condenser tube. The material and the manufacturing method of the condenser tube are completed by material selection (1), argon ion bombardment (2) and nitrogen ion bombardment (3). The advantage of the invention is that the drop-shaped condenser pipe made of the mixed material can maintain long time of drop-shaped condensation, has high heat transfer coefficient, and the metal surface layer also has the performance of corrosion and scale resistance.
Description
The present invention relates to a kind of is that the heat exchanger tube of the heat exchanger of thermal source prepares material and method with the steam.
The heat exchanger tube great majority of now industrial with steam the is heat exchanger of thermal source are all made with metal material, and the surface of pipe is a high energy surface, so film condensation becomes a kind of universal phenomenon.And the dropwise condensation coefficient of heat transfer than the high 2-3 of the film condensation coefficient of heat transfer doubly.Usually adopt following two kinds of ways in order to obtain dropwise condensation: a kind of way is to apply polytetrafluoroethylene (PTFE) in the metal surface, low-surface-energy materials such as polyethylene, but because its coating approaches (0.25-1mm), it is stable that the uniformity of coating and the fastness of bonding are difficult to keep, and easily comes off because of wearing out simultaneously.Second kind of way electroplated in the metal surface or ion plating layer of metal sulfide or other precious metal such as golden platinum, rhodium, silver etc., but easily come off in using, and the life-span is short.
The objective of the invention is to provide a kind of surface to have material and method that low-surface-energy has the condenser pipe of certain depth, it can keep dropwise condensation.
The present invention includes the metal heat exchange tube material, again polytetrafluoroethylene (PTFE) or molybdenum are mixed with it, be used for the manufacturing of dropwise condensation pipe.The preparation method of this kind material and condenser pipe thereof for by select materials, argon ion bombardment, nitrogen ion bombard and finish.When selecting materials, can choose a kind of in carbon steel pipe, stainless steel tube, brass tube, the copper tube wantonly, can choose a kind of in polytetrafluoroethylene (PTFE) or the molybdenum wantonly.Carry out argon ion bombardment after selecting materials earlier, the metal heat exchanger tube is put into 10
-3-10
-7Argon ion with 1200 volts of voltage across poles in the vacuum tank of holder bombards polytetrafluoroethylene (PTFE) or molybdenum, and the ion of polytetrafluoroethylene (PTFE) or molybdenum is bombarded the metal tube surface.After carry out nitrogen ion bombardment, it with voltage across poles 1200 volts nitrogen ion bombardment metal tube surface, except that part polytetrafluoroethylene (PTFE) or molybdenum atom are left the surface by sputter, all the other all are driven in the metal surface, evenly friendship is mixed in metal surface to form two kinds of elements, thereby forms the condenser pipe with low energy top layer.When choosing molybdenum, also need to form molybdenum bisuphide through vulcanizing treatment.
The invention has the advantages that time that the dropwise condensation pipe that uses above-mentioned composite material to make can keep dropwise condensation more than 30000 hours, heat transfer coefficient is at vapour---and under the situation of water heat exchange, the flow velocity of water can reach 6000-8000W/m when 2m/s
2.K, metal surface also has anticorrosion anti-tartar performance etc.
Accompanying drawings embodiment:
Fig. 1 prepares the process chart of material method for a kind of dress condenser pipe.
From Fig. 1, learn: the manufacturing process of this kind composite material and condenser pipe thereof by select materials 1, argon ion bombardment 2, nitrogen ion bombardment 3 finish.Selecting materials 1 o'clock, and can choose a kind of in carbon steel pipe, stainless steel tube, brass tube, the copper tube wantonly, can choose a kind of in polytetrafluoroethylene (PTFE) or the molybdenum wantonly.Carry out argon ion bombardment 2 after selecting materials earlier, the metal heat exchanger tube is put into 10
-3-10
-7Argon ion with 1200 volts of voltage across poles in the vacuum tank of holder bombards polytetrafluoroethylene (PTFE) or molybdenum, and the ion of polytetrafluoroethylene (PTFE) or molybdenum is bombarded the metal tube surface.After carry out nitrogen ion bombardment 3, with voltage across poles is that 1200 volts nitrogen ion bombards 3 metal tube surfaces, except that part polytetrafluoroethylene (PTFE) or molybdenum atom are left the surface by sputter, all the other all are driven in the metal surface, evenly friendship is mixed in metal surface to form two kinds of elements, thereby forms the condenser pipe with low energy top layer.When choosing molybdenum, also need to form molybdenum bisuphide through vulcanizing treatment.
Claims (4)
1, a kind of materials for manufacturing dropping condensing tubes comprises the metal heat exchange tube material, it is characterized in that polytetrafluoroethylene (PTFE) or molybdenum being mixed with the metal tube material again, is used for the manufacturing of dropwise condensation pipe.
2, a kind of preparation method of materials for manufacturing dropping condensing tubes is characterized in that finishing by select materials (1), argon ion bombardment (2), nitrogen ion bombardment (3).
3, the method for a kind of materials for manufacturing dropping condensing tubes according to claim 2 when it is characterized in that carrying out argon ion bombardment (2), puts into 10 to the metal heat exchanger tube
-3-10
-7Argon ion with 1200 volts of voltage across poles in the vacuum tank of holder bombards (2) polytetrafluoroethylene (PTFE) or molybdenum, and the ion of polytetrafluoroethylene (PTFE) or molybdenum is bombarded the metal tube top layer.
4, the method for a kind of materials for manufacturing dropping condensing tubes according to claim 2 when it is characterized in that carrying out nitrogen ion bombardment (3), is 1200 volts nitrogen ion bombardment metal tube surface with voltage across poles, and it is mixed to form the even friendship in metal surface of two kinds of elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110137 CN1109161A (en) | 1994-03-21 | 1994-03-21 | Preparation material and method of dropwise condensation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110137 CN1109161A (en) | 1994-03-21 | 1994-03-21 | Preparation material and method of dropwise condensation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1109161A true CN1109161A (en) | 1995-09-27 |
Family
ID=5034125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110137 Pending CN1109161A (en) | 1994-03-21 | 1994-03-21 | Preparation material and method of dropwise condensation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1109161A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429008C (en) * | 2005-09-30 | 2008-10-29 | 大连理工大学 | Process for preparing functional heat transfer surface |
| CN107931970A (en) * | 2017-11-08 | 2018-04-20 | 华北电力大学 | Condensation tube preparation method with patterning wellability surface |
| CN110763055B (en) * | 2019-08-23 | 2021-03-16 | 西安交通大学 | Surface hydrophobic modified composite condensation enhanced heat transfer pipe and preparation method thereof |
-
1994
- 1994-03-21 CN CN 94110137 patent/CN1109161A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429008C (en) * | 2005-09-30 | 2008-10-29 | 大连理工大学 | Process for preparing functional heat transfer surface |
| CN107931970A (en) * | 2017-11-08 | 2018-04-20 | 华北电力大学 | Condensation tube preparation method with patterning wellability surface |
| CN110763055B (en) * | 2019-08-23 | 2021-03-16 | 西安交通大学 | Surface hydrophobic modified composite condensation enhanced heat transfer pipe and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |