CN1030969C - Expanding joint method for calorized plate steel tube with heat-erchange tube - Google Patents
Expanding joint method for calorized plate steel tube with heat-erchange tube Download PDFInfo
- Publication number
- CN1030969C CN1030969C CN 93105420 CN93105420A CN1030969C CN 1030969 C CN1030969 C CN 1030969C CN 93105420 CN93105420 CN 93105420 CN 93105420 A CN93105420 A CN 93105420A CN 1030969 C CN1030969 C CN 1030969C
- Authority
- CN
- China
- Prior art keywords
- tube
- steel tube
- heat exchanger
- expansion joint
- calorized
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 4
- 239000010959 steel Substances 0.000 title claims abstract description 4
- 229910000680 Aluminized steel Inorganic materials 0.000 claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims abstract 2
- 238000000576 coating method Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention belongs to a heat exchanger which is suitable for expansion joint occasions between an aluminized steel tube and the tube sheet of the heat exchanger. The method comprises the steps: a layer of anti-seepage paint prepared from calcium hydroxide, graphite powder, binding agents and water which are mixed and stirred is coated at the position of expansion joint before the steel tube is calorized. Expansion joint equipment and an expansion joint apparatus are usually used in the expansion joint between the aluminized steel tube and the tube sheet of the heat exchanger.
Description
The present invention relates to a kind of heat exchanger manufacture method, be specially adapted to the expanded joint occasion between aluminized steel tube and the heat exchanger tube sheet.
The heat exchanger that is used for high temperature or anticorrosion or anti-wear occasion at present, its heat exchanger tube often adopts the method for aluminising, make the heat exchanger tube surface form aluminium-ferroalloy and alundum (Al top layer, yet, because the hard fragility of this superficial layer, conventional expanding joint method can't be proved effective,, cause the raising of assembly difficulty and cost so can only adopt the means assembling of welding.For example: widely used sulfuric acid heat exchanger, because of can't expanded joint, have only and adopt the aluminising copper welding rod of relevant welding rod factory development to be welded to connect, but cost and manufacture difficulty be all very high, the unit that has adopts the method antiseepage of fire clay coating, and effect is also very undesirable.
Shortcoming according to above-mentioned prior art exists the purpose of this invention is to provide a kind of method that makes aluminized steel tube and heat exchanger tube sheet expanded joint.
The present invention realizes by following technical measures, before aluminium impregnation of steel tube, (expanded joint position such as pipe end) is coated with several one deck impermeable coatings at the position that does not need aluminising, and the composition of coating is calcium hydroxide, graphite powder, binding agent (high-temperature coatings) and water, and their proportioning (percentage by weight) is:
Calcium hydroxide 15%, graphite powder 30%, binding agent 5%, all the other are water, stir at normal temperatures and pressures can apply after stranding makes it full and uniform.
The advantage of this method is that the aluminized steel tube after employing the inventive method is handled can utilize normally used tube expander and pipe expanding equipment, the direct and safe expanded joint of tube sheet.
Claims (1)
1. a method that makes aluminized steel tube and heat exchanger tube sheet expanded joint is characterized by before aluminium impregnation of steel tube, and at its expanded joint position coating one deck impermeable coating, paint ingredient is calcium hydroxide, stone black powder, binding agent and water, and their percentage by weight is:
Calcium hydroxide 15%, graphite powder 30%, binding agent 5%, all the other are water, can apply after stirring makes it full and uniform at normal temperatures and pressures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105420 CN1030969C (en) | 1993-04-30 | 1993-04-30 | Expanding joint method for calorized plate steel tube with heat-erchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105420 CN1030969C (en) | 1993-04-30 | 1993-04-30 | Expanding joint method for calorized plate steel tube with heat-erchange tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1094339A CN1094339A (en) | 1994-11-02 |
| CN1030969C true CN1030969C (en) | 1996-02-14 |
Family
ID=4985712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93105420 Expired - Fee Related CN1030969C (en) | 1993-04-30 | 1993-04-30 | Expanding joint method for calorized plate steel tube with heat-erchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030969C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107250A (en) * | 2010-12-09 | 2011-06-29 | 华东理工大学 | Method for determining expansion process parameters of tube and tube plate of AP1000 nuclear evaporator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100471617C (en) * | 2006-12-20 | 2009-03-25 | 李俊松 | Making process of tube-sheet heat exchanger without seepage |
-
1993
- 1993-04-30 CN CN 93105420 patent/CN1030969C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107250A (en) * | 2010-12-09 | 2011-06-29 | 华东理工大学 | Method for determining expansion process parameters of tube and tube plate of AP1000 nuclear evaporator |
| CN102107250B (en) * | 2010-12-09 | 2012-06-06 | 华东理工大学 | Method for determining expansion process parameters of tube and tube plate of AP1000 nuclear evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1094339A (en) | 1994-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |