CN203628610U - Waste heat boiler evaporating section transition structure - Google Patents
Waste heat boiler evaporating section transition structure Download PDFInfo
- Publication number
- CN203628610U CN203628610U CN201320833890.5U CN201320833890U CN203628610U CN 203628610 U CN203628610 U CN 203628610U CN 201320833890 U CN201320833890 U CN 201320833890U CN 203628610 U CN203628610 U CN 203628610U
- Authority
- CN
- China
- Prior art keywords
- housing
- tube sheet
- shell body
- transition structure
- waste heat
- 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 - Lifetime
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- 230000007704 transition Effects 0.000 title claims abstract description 13
- 239000002918 waste heat Substances 0.000 title claims abstract description 13
- 238000001704 evaporation Methods 0.000 title abstract 3
- 230000003139 buffering effect Effects 0.000 claims description 9
- 230000001174 ascending effect Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a waste heat boiler evaporating section transition structure which comprises a boiler shell body. A pipe plate is arranged in the shell body. The pipe plate divides the inner portion of the shell body into a steam inlet zone and a heat exchanging zone. A heat exchanging pipe is arranged in the heat exchanging zone. The heat exchanging pipe is connected with the pipe plate. An ascending pipe communicated with the inner portion of the shell body is arranged on the outer wall of the shell body. The connection portion of the ascending pipe and the shell body is placed below the pipe plate. The pipe plate is connected with the inner wall of the shell body through an annular piece with the section in an arc shape. The lower end of the annular piece is connected with the pipe plate. The upper end of the annular piece is connected with the inner wall of the shell body. The waste heat boiler evaporating section transition structure has the advantages that the annular piece is used for compensating differential temperature stress, and accordingly safety is achieved.
Description
Technical field
The utility model relates to a kind of waste heat boiler evaporator section transition structure.
Background technology
The general structure of existing waste heat boiler evaporator section transition structure is for comprising boiler shell, in housing, be provided with tube sheet, enclosure interior is divided into admission region and heat exchange region by tube sheet, heat exchange is provided with heat exchanger tube in region, heat exchanger tube is connected with tube sheet, on the outer wall of housing, be provided with and the tedge communicating in housing, the junction of tedge and housing is positioned at tube sheet below.Because tube sheet in this structure is to be directly connected with housing, cause like this tube sheet edge place, the local thermal (temperature difference) stress that tube sheet is connected with housing is large, tube sheet meeting torsional deformation, the time has been grown easy damage, thereby causes leaking vapour, produces potential safety hazard.
Utility model content
Technical problem to be solved in the utility model is: the waste heat boiler evaporator section transition structure that a kind of thermal (temperature difference) stress is little is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of waste heat boiler evaporator section transition structure, comprise boiler shell, in housing, be provided with tube sheet, enclosure interior is divided into admission region and heat exchange region by tube sheet, heat exchange is provided with heat exchanger tube in region, heat exchanger tube is connected with tube sheet, on the outer wall of housing, be provided with and the tedge communicating in housing, the junction of tedge and housing is positioned at tube sheet below, the annular element that described tube sheet is arc by cross section is connected with the inwall of housing, the lower end of annular element is connected with tube sheet, upper end is connected with inner walls.
Between described annular element and housing, form a buffer circle, offer exhaust hole on housing, exhaust hole one end is communicated with the top of buffering area, and the other end is connected with tedge by pipeline.
Described exhaust hole is positioned at the position of housing outer wall higher than the top of buffering area, and exhaust hole and horizontal direction are-30～-60 °.
The beneficial effects of the utility model are: adopt after annular element, utilize annular element to compensate thermal (temperature difference) stress, thereby have more security.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model waste heat boiler evaporator section transition structure.
In figure: 1, housing, 2, tube sheet, 3, admission region, 4, heat exchange region, 5, heat exchanger tube, 6, tedge, 7, annular element, 8, buffering area, 9, exhaust hole, 10, pipeline.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 1, waste heat boiler evaporator section transition structure described in the utility model, comprise boiler shell 1, in housing 1, be provided with tube sheet 2, housing 1 inside is divided into admission region 3 and heat exchange region 4 by tube sheet 2, in heat exchange region 4, be provided with heat exchanger tube 5, heat exchanger tube 5 is connected with tube sheet 2, on the outer wall of housing 1, be provided with and the tedge 6 communicating in housing 1, tedge 6 is positioned at tube sheet 2 belows with the junction of housing 1, the annular element 7 that described tube sheet 2 is arc by cross section is connected with the inwall of housing 1, the lower end of annular element 7 is connected with tube sheet 2, upper end is connected with housing 1 inwall.Make like this to have and flexibly connect between tube sheet 2 and housing 1, thereby reduce thermal (temperature difference) stress.Between described annular element 7 and housing 1, form a buffer circle 8, offer exhaust hole 9 on housing 1, exhaust hole 9 one end are communicated with the top of buffering area 8, and the other end is connected with tedge 6 by pipeline 10.Utilize exhaust hole 9 that the steam bubble being collected in buffering area 8 is discharged by pipeline 10 and tedge 6, prevent buffering area excess Temperature, burn out annular element 7, cause leaking.In order to guarantee the better Natural excrement of steam bubble, described exhaust hole 9 is positioned at the position of housing 1 outer wall higher than the top of buffering area 8, and exhaust hole 9 is-30～-60 ° with horizontal direction.
Claims (3)
1. waste heat boiler evaporator section transition structure, comprise boiler shell, in housing, be provided with tube sheet, enclosure interior is divided into admission region and heat exchange region by tube sheet, heat exchange is provided with heat exchanger tube in region, heat exchanger tube is connected with tube sheet, on the outer wall of housing, be provided with and the tedge communicating in housing, the junction of tedge and housing is positioned at tube sheet below, it is characterized in that: the annular element that described tube sheet is arc by cross section is connected with the inwall of housing, the lower end of annular element is connected with tube sheet, and upper end is connected with inner walls.
2. waste heat boiler evaporator section transition structure according to claim 1, it is characterized in that: between described annular element and housing, form a buffer circle, on housing, offer exhaust hole, exhaust hole one end is communicated with the top of buffering area, and the other end is connected with tedge by pipeline.
3. waste heat boiler evaporator section transition structure according to claim 2, is characterized in that: described exhaust hole is positioned at the position of housing outer wall higher than the top of buffering area, and exhaust hole and horizontal direction are-30～-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833890.5U CN203628610U (en) | 2013-12-17 | 2013-12-17 | Waste heat boiler evaporating section transition structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833890.5U CN203628610U (en) | 2013-12-17 | 2013-12-17 | Waste heat boiler evaporating section transition structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203628610U true CN203628610U (en) | 2014-06-04 |
Family
ID=50815084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320833890.5U Expired - Lifetime CN203628610U (en) | 2013-12-17 | 2013-12-17 | Waste heat boiler evaporating section transition structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203628610U (en) |
-
2013
- 2013-12-17 CN CN201320833890.5U patent/CN203628610U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |