CN202830106U - Post-weld heat treatment device for air cooler pipe heads - Google Patents
Post-weld heat treatment device for air cooler pipe heads Download PDFInfo
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- CN202830106U CN202830106U CN 201220484333 CN201220484333U CN202830106U CN 202830106 U CN202830106 U CN 202830106U CN 201220484333 CN201220484333 CN 201220484333 CN 201220484333 U CN201220484333 U CN 201220484333U CN 202830106 U CN202830106 U CN 202830106U
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- hot
- air cooler
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Abstract
The utility model relates to a post-weld heat treatment device for an air cooler pipe heads, comprising a pipe box. The interior of the pipe box is provided with a hollow cavity, and the pipe box is provided with a pipe hole. The post-weld heat treatment device for the air cooler pipe heads is characterized in that two ends of the pipe box are provided with a hot-air inlet and a hot-air reflow port respectively, wherein the hot-air inlet is connected with the hot-air outlet of a combustion furnace through a pipe, and the hot-air reflow port is connected with the inlet of the combustion furnace through a pipe. A pipe between the hot-air reflow port of the pipe box and the inlet of the combustion furnace is provided with a draught fan. The post-weld heat treatment device for the air cooler pipe heads solves the problem that the air cooler pipe heads can not be subjected to heat treatment in the furnace due to the special structure of the sealed space of the pipe box of the air cooler. The post-weld heat treatment device for the air cooler pipe heads adopts high-temperate gas to heat all parts uniformly, is easy to control and efficient, can be used for the heat treatment of the single pipe box during production, omits the secondary heat treatment after pipe-head welding and sealing, improves the work efficiency and is suitable for modular production.
Description
Technical field
The utility model relates to a kind of air cooler tube head postweld heat treatment device, is used for the thermal treatment unit of heat transfer tube and pipe sheet weld joint in especially a kind of Air-cooled Heat Exchanger industry.
Background technology
In traditional Air-cooled Heat Exchanger production process, when producing the delayed cracking tendency after the operation medium has the welding of stress corrosion operating mode and material, thermal treatment must heat exchanging tube and tube plate welding joint eliminates stress.Because the structure of Air-cooled Heat Exchanger is special, as shown in Figure 1, be equipped with aluminium fin 6 on the heat transfer tube and increase heat interchanging area, and the welding joint of heat transfer tube and air cooling head tube sheet 7 is final operations of assembling.The heat treated temperature that eliminates stress is generally at 620 ± 10 ℃, and the fusing point of aluminium is about 660 ℃, so the complete heat treatment meeting causes the aluminium fin to dissolve in the stove.
Usually to there being the welding of delayed cracking tendency material often to adopt following several modes: (1) xenogenesis high alloy welding material: this kind mode cost is high, local stress is large after the dissimilar steel welding, more easily bring out galvanic corrosion, detail of design all clearly forbids adopting the welding of dissimilar steel at present; (2) technique of employing expanded joint: this kind mode intensity can't be compared with weldprocedure with stopping property, and the high temperature and high pressure condition expanding joint process is inapplicable.
Existing stress corrosion medium occasion does not still have better heat treating method at present.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of air cooler tube head postweld heat treatment device is provided, and is simple to operate, efficient.
According to the technical scheme that the utility model provides, described air cooler tube head postweld heat treatment device comprises bobbin carriage, and bobbin carriage inside has cavity, and pore is set on the bobbin carriage; Feature is: at the two ends of described bobbin carriage hot-air inlets and hot air reflow mouth are set respectively, hot-air inlets is connected with the hot air outlet of roasting kiln by pipeline, and the hot air reflow mouth is connected with the import of roasting kiln by pipeline.
Pipeline between described hot air reflow mouth and roasting kiln import arranges induced draft fan.
The utlity model has following advantage:
(1) the utility model has solved the problem that air cooler bobbin carriage enclosed space special construction can not advance the furnace treatment reason;
(2) the utility model adopts high-temperature gas, to each position homogeneous heating;
(3) the utility model control is simple, efficient;
(4) the utility model can carry out independent thermal treatment with bobbin carriage when producing, and again thermal treatment when avoiding airtight with the tube head postwelding has improved working efficiency, is convenient to modularization production.
Description of drawings
Fig. 1 is the state graph behind heat exchange pipe head and the Tube-sheet Welding.
Fig. 2 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete accompanying drawing.
As shown in Figure 2: described air cooler tube head postweld heat treatment device comprises bobbin carriage 1, hot-air inlets 2, hot air reflow mouth 3, roasting kiln 4, induced draft fan 5 etc.
As shown in Figure 2, the utility model comprises bobbin carriage 1, and bobbin carriage 1 inside has cavity, on the bobbin carriage 1 pore is set; At the two ends of described bobbin carriage 1 hot-air inlets 2 and hot air reflow mouth 3 are set respectively, hot-air inlets 2 is connected by the hot air outlet of pipeline with roasting kiln 4, hot air reflow mouth 3 is connected by the import of pipeline with roasting kiln 4, and at pipeline induced draft fan 5 is set.
The utility model blocks with plug welding the pore of waiting for heat treated bobbin carriage 1 in use, only stays warm air import 2 and hot air reflow mouth 3; The high-temperature gas that again roasting kiln 4 is produced is from hot-air inlets 3 input bobbin carriages 1, and recycling induced draft fan 5 is drawn from hot air reflow mouth 3, by regulating hot-gas temperature and flow the tube head welding joint is heat-treated.
Thermal treatment unit described in the utility model can be eliminated the stress after the tube head welding, by the use of high-temperature gas, increases work efficiency, and simplifies heat treatment step.
Claims (2)
1. an air cooler tube head postweld heat treatment device comprises bobbin carriage (1), and bobbin carriage (1) inside has cavity, and bobbin carriage arranges pore on (1); It is characterized in that: hot-air inlets (2) and hot air reflow mouth (3) are set respectively at the two ends of described bobbin carriage (1), hot-air inlets (2) is connected by the hot air outlet of pipeline with roasting kiln (4), and hot air reflow mouth (3) is connected by the import of pipeline with roasting kiln (4).
2. air cooler tube head postweld heat treatment device as claimed in claim 1, it is characterized in that: the pipeline between described hot air reflow mouth (3) and roasting kiln (4) import arranges induced draft fan (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220484333 CN202830106U (en) | 2012-09-20 | 2012-09-20 | Post-weld heat treatment device for air cooler pipe heads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220484333 CN202830106U (en) | 2012-09-20 | 2012-09-20 | Post-weld heat treatment device for air cooler pipe heads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202830106U true CN202830106U (en) | 2013-03-27 |
Family
ID=47941860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220484333 Expired - Fee Related CN202830106U (en) | 2012-09-20 | 2012-09-20 | Post-weld heat treatment device for air cooler pipe heads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202830106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2550213C1 (en) * | 2014-03-27 | 2015-05-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Air cooling unit |
| RU205169U1 (en) * | 2020-08-17 | 2021-06-29 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Heat exchanger collector chamber |
-
2012
- 2012-09-20 CN CN 201220484333 patent/CN202830106U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2550213C1 (en) * | 2014-03-27 | 2015-05-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Air cooling unit |
| RU205169U1 (en) * | 2020-08-17 | 2021-06-29 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Heat exchanger collector chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20180920 |