CN203190395U - Thermal protection device for boiler tube plate - Google Patents
Thermal protection device for boiler tube plate Download PDFInfo
- Publication number
- CN203190395U CN203190395U CN 201220667974 CN201220667974U CN203190395U CN 203190395 U CN203190395 U CN 203190395U CN 201220667974 CN201220667974 CN 201220667974 CN 201220667974 U CN201220667974 U CN 201220667974U CN 203190395 U CN203190395 U CN 203190395U
- Authority
- CN
- China
- Prior art keywords
- porcelain bushing
- bushing shell
- chimney
- tube plate
- tube
- 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
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Abstract
The utility model discloses a thermal protection device for a boiler tube plate, and the device comprises a front tube plate, fire-resistant castable, an inner porcelain sleeve, an outer porcelain sleeve, and a chimney. One side of the inner porcelain sleeve is in a sleeve joint with the chimney, the connection part of the outer wall of the inner porcelain sleeve and the chimney is in a sleeve joint with the outer porcelain sleeve, the outer wall of the chimney is provided with the front tube plate, and the outer walls of the inner porcelain sleeve and the outer porcelain sleeve are provided with fire-resistant castable. The thermal protection device of boiler tube plate is safe and reliable, effectively reduces the temperature of a tube head, significantly prolongs the service lifetime of the heat recovery steam generator, and is also advantaged by simple structure and convenient construction.
Description
Technical field
The utility model relates to field of boilers, be specifically related to a kind of boiler's tube-plate temperature barrier
Background technology
Influence the factor of waste heat boiler tube head temperature except temperature, pressure, flow, the component of high-temperature gas; outside the technological factors such as steam pressure that waste heat boiler produces; the influence factor of mainly considering from the device structure aspect is: the waste heat boiler tube plate thickness; the diameter of boiler tube and wall thickness; the size of boiler tube layout and tube pitch; the tubesheet lining material is selected and thickness; protective casing itself and sleeve pipe and boiler tube are asked annular space; dull gas thickness; the thermal contact resistance that tube-to-tube sheet connection is connected to form, tube sheet rear surface and just stretched out the boiling situation at the outer tube surface place of tube sheet.Therefore traditional waste heat boiler is easy at high temperature be corroded because do not consider these factors comprehensively, greatly reduces its service life.
Summary of the invention
At the deficiency that exists on the prior art, the utility model purpose is to be to provide a kind of boiler's tube-plate temperature barrier, has effectively reduced the tube head temperature, and simple in structure, easy construction, safe and reliable has prolonged service life of waste heat boiler greatly.
To achieve these goals, the utility model is to realize by the following technical solutions: the boiler's tube-plate temperature barrier, comprise front tube sheet, castable refractory, interior porcelain bushing shell, outer porcelain bushing shell and chimney, interior porcelain bushing shell one side and chimney socket-connect, interior porcelain bushing shell outer wall and chimney connection are socketed with outer porcelain bushing shell, the chimney outer wall is provided with front tube sheet, and interior porcelain bushing shell and outer porcelain bushing shell outer wall are provided with castable refractory.
According to above-mentioned boiler's tube-plate temperature barrier, wherein, described interior porcelain bushing shell thickness is 3mm-4mm.
According to above-mentioned boiler's tube-plate temperature barrier, wherein, described interior porcelain bushing shell and outer porcelain bushing shell 4 all are the alundum pipe.
The utility model has effectively reduced the tube head temperature, and simple in structure, easy construction, safe and reliable has prolonged service life of waste heat boiler greatly.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present utility model.
Coding among the figure is respectively: 1 is front tube sheet, and 2 is castable refractory, and 3 is interior porcelain bushing shell, and 4 is outer porcelain bushing shell, and 5 is chimney.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.
As shown in Figure 1, this boiler's tube-plate temperature barrier, comprise front tube sheet 1, castable refractory 2, interior porcelain bushing shell 3, outer porcelain bushing shell 4 and chimney 5, interior porcelain bushing shell 3 one sides and chimney 5 socket-connect, interior porcelain bushing shell 3 outer walls and chimney 5 connections are socketed with outer porcelain bushing shell 4, chimney 5 outer walls are provided with front tube sheet 1, and interior porcelain bushing shell 3 and outer porcelain bushing shell 4 outer walls are provided with castable refractory 2.
As shown in Figure 1, described interior porcelain bushing shell 3 thickness are 3mm-4mm.
As shown in Figure 1, described interior porcelain bushing shell 3 and outer porcelain bushing shell 4 all are the alundum pipe.
Claims (3)
1. boiler's tube-plate temperature barrier, it is characterized in that, comprise front tube sheet (1), castable refractory (2), interior porcelain bushing shell (3), outer porcelain bushing shell (4) and chimney (5), interior porcelain bushing shell (3) one sides and chimney (5) socket-connect, interior porcelain bushing shell (3) outer wall and chimney (5) connection are socketed with outer porcelain bushing shell (4), chimney (5) outer wall is provided with front tube sheet (1), and interior porcelain bushing shell (3) and outer porcelain bushing shell (4) outer wall are provided with castable refractory (2).
2. boiler's tube-plate temperature barrier according to claim 1 is characterized in that, described interior porcelain bushing shell (3) thickness is 3mm-4mm.
3. boiler's tube-plate temperature barrier according to claim 1 is characterized in that, described interior porcelain bushing shell (3) and outer porcelain bushing shell (4) all are the alundum pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220667974 CN203190395U (en) | 2012-11-22 | 2012-11-22 | Thermal protection device for boiler tube plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220667974 CN203190395U (en) | 2012-11-22 | 2012-11-22 | Thermal protection device for boiler tube plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203190395U true CN203190395U (en) | 2013-09-11 |
Family
ID=49107251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220667974 Expired - Fee Related CN203190395U (en) | 2012-11-22 | 2012-11-22 | Thermal protection device for boiler tube plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203190395U (en) |
-
2012
- 2012-11-22 CN CN 201220667974 patent/CN203190395U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20131122 |