CN207019507U - Flexible tube plate waste heat boiler - Google Patents
Flexible tube plate waste heat boiler Download PDFInfo
- Publication number
- CN207019507U CN207019507U CN201720291982.3U CN201720291982U CN207019507U CN 207019507 U CN207019507 U CN 207019507U CN 201720291982 U CN201720291982 U CN 201720291982U CN 207019507 U CN207019507 U CN 207019507U
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- tube
- temperature side
- tube sheet
- sheet
- high temperature
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Abstract
The utility model discloses a kind of flexible tube plate waste heat boiler, and it mainly includes：Low temperature side tube sheet, housing, heat exchanger tube, support tube, positioning tie bar and tube sheet on high temperature side, tube sheet on high temperature side uses spherical shell type thin tubesheet, and by being welded with the band convex shoulder changeover portion of housing, makes equipment shell journey separated；Low temperature side tube sheet uses flat bottom cover formula thin tubesheet, and flat board excircle adds the flexibility of tube sheet, be advantageous to the temperature difference thermal compensation of shell journey to upper overturning and case weld.Support tube also serves as heat exchanger tube use, can also improve heat exchange efficiency.Some pull bars are provided between two tube sheet equipment center positions, both ends are connected with two Tube-sheet Weldings, play positioning action.The utility model applicability is wide, saves material, and the spherical shell design of high temperature side thin tubesheet makes its stress evenly, increases the reliability of equipment.
Description
Technical field
The utility model belongs to waste heat boiler field, specially a kind of flexible tube plate waste heat boiler, suitable for chemical plant installations
In energy recovery.
Background technology
Waste heat boiler is the important energy saver of energy recovery, in energy-saving and emission-reduction, improves energy utilization rate etc. and plays
Important function, therefore waste heat boiler is widely used in chemical industry.Waste heat boiler high-temperature technology gas arrival end tube sheet,
Usually under harsh operating condition, tube sheet on high temperature side surface temperature is very high, influences the service life of tube sheet.Tube sheet on high temperature side
The pressure and temperature loading that both sides are born are larger, from the aspect of intensity, it is desirable to and tube sheet thickeies, but due to thick tube sheet temperature difference
Greatly, larger thermal (temperature difference) stress, and thick tube sheet processing difficulties are produced, it is less economical.Therefore tube sheet on high temperature side two how is reduced
The temperature difference of side, reduce thermal (temperature difference) stress, while can solve tube sheet processing difficulties, the problem of improving the economy of tube sheet, for useless
It is extremely important for heat boiler.At present waste heat boiler, be required for making the improvement in structure.
The content of the invention
The utility model is in order to solve waste heat boiler because the shell journey temperature difference is larger so that tube sheet on high temperature side, heat exchanger tube and
There is the problem of larger thermal (temperature difference) stress in housing, there is provided a kind of new flexible tube plate waste heat boiler.
The utility model adopts the following technical scheme that realization：
High temperature side spherical shell type tube sheet, the shell are welded in a kind of flexible tube plate waste heat boiler, including housing, the housing upper end
Low temperature side tube sheet is welded in body lower end, and some heat exchanger tubes and support are welded between the high temperature side spherical shell type tube sheet and low temperature side tube sheet
Pipe.
The characteristics of the utility model is：Tube sheet on high temperature side uses spherical shell type tube sheet（I.e. tube sheet is shaped as the ball of sub-fraction
Face shape）, make tube sheet stress evenly, it is stronger to resist the ability from compression caused by heat exchanger tube thermal expansion；Heat exchanger tube with
Support tube end and two Tube-sheet Weldings firm, meet pulling-out force requirement, support tube also serves as heat exchanger tube heat exchange, improves heat exchange efficiency.
Preferably, a number of positioning is welded between high temperature side spherical shell type tube sheet and low temperature side the tube sheet middle part to draw
Bar, play the positioning action of high temperature side spherical shell type tube sheet and low temperature side tube sheet.
The utility model has advantages below：
1st, the utility model applicability is wide, and it is big to solve the temperature difference of waste heat boiler tube sheet on high temperature side both sides well, the temperature difference
Stress is big, tube sheet processing difficulties, and tube sheet it is less economical the problem of.
2nd, the tube sheet on high temperature side of spherical shell type meets the requirement of thin tubesheet intensity and thermal (temperature difference) stress, saves material, high temperature side
The spherical shell design of thin tubesheet makes its stress evenly, increases the reliability of equipment.
Brief description of the drawings
Fig. 1 represents structural representation of the present utility model.
Fig. 2 represents support tube, heat exchanger tube, the arrangement schematic diagram of positioning tie bar.
In figure：1- low temperature side tube sheets, 2- housings, 3- heat exchanger tubes, 4- support tubes, 5- positioning tie bars, 6- changeover portions, 7- high temperature
Side spherical shell type tube sheet, 8- heat transferring mediums import/export, 9- blow-off pipes.
Embodiment
Specific embodiment of the utility model is illustrated with reference to Figure of description.
A kind of flexible tube plate waste heat boiler, mainly includes：Low temperature side tube sheet 1, housing 2, heat exchanger tube 3, support tube 4, positioning
Pull bar 5 and high temperature side spherical shell type tube sheet 7.Specific annexation is as shown in Figure 1：Weld high temperature side spherical shell type tube sheet in the upper end of housing 2
7, the lower end of the housing 2 welding low temperature side tube sheet 1, welded between the high temperature side spherical shell type tube sheet 7 and low temperature side tube sheet 1 some
Heat exchanger tube 3, support tube 4 and positioning tie bar 5.
During specific preparation, tube sheet on high temperature side uses spherical shell type thin tubesheet, and tube sheet uniform force, it is swollen that resistance comes from heat exchanger tube heat
The ability of compression is stronger caused by swollen, and is welded with the band convex shoulder changeover portion 6 of housing 2, makes equipment shell journey separated.Cross
Cross a section both sides and be provided with heat transferring medium import/export 8, the bottom of housing is also equipped with heat transferring medium import/export 8.Heat transferring medium can
From the heat transferring medium mouth entrance positioned at housing bottom, to be flowed out by the heat transferring medium mouth positioned at housing upper；Or it is reversed.
Low temperature side tube sheet uses flat bottom cover formula thin tubesheet, and flat board excircle is to upper overturning and case weld, both to tube sheet
There is structural strengthening at edge, while also increases the flexibility of tube sheet, is advantageous to the temperature difference thermal compensation of shell journey.Low temperature side pipe
Blow-off pipe 9 is set on plate 1, and after boiler long-play, some sewage are had in shell side to be needed to discharge, and now opens blowdown pipe valve
Door discharge.
Some heat exchanger tubes and support tube are staggered, and its end is firmly welded with two tube sheets, meet pulling-out force requirement.According to
The heat exchange area of waste heat boiler technological requirement, heat exchanger tube, support tube specification, exchange heat pipe and support tube carries out reasonable Arrangement, such as
Shown in Fig. 2, heat exchanger tube should be interval-staggered with support tube during stringing, is uniformly distributed, makes heat exchanger tube and support tube uniform force.
The difference of support tube and heat exchanger tube is, supports thickness of pipe wall, is mainly used in being fixedly connected between two tube sheets, for endurance
Effect, while the hollow heat exchanger tube that can also serve as of support tube uses, and can also increase heat exchange area, improve heat exchange efficiency.And exchange heat
Tube wall is thin, is mainly used in heat exchange action.
Four positioning tie bars 5 are provided between two tube sheet equipment center positions, four positioning tie bars 5 are positioned at four up and down
Point（As shown in Figure 2, cross section sees that four positioning tie bars form square arrangement）, positioning tie bar both ends and two Tubesheet Weldings are in succession
Connect, play positioning action.
Above example is merely to illustrate the technical solution of the utility model and unrestricted, although with reference to preferred embodiments to this
Utility model is described in detail, it will be appreciated by those skilled in the art that the technical scheme that can use for reference utility model is carried out
Modification or equivalent substitution, without departing from it is of the present utility model in a word and scope, be regarded as the right for being included in utility model
Within claimed range.
Claims (2)
1. a kind of flexible tube plate waste heat boiler, including housing（2）, it is characterised in that：The housing（2）Weld high temperature side ball in upper end
Shell-type tube sheet（7）, the housing（2）Weld low temperature side tube sheet in lower end（1）, the high temperature side spherical shell type tube sheet（7）And low temperature side
Tube sheet（1）Between weld some heat exchanger tubes（3）And support tube（4）, the support tube（4）Wall thickness be more than heat exchanger tube（3）, it is described
Support tube（4）With heat exchanger tube（3）It is staggered；The high temperature side spherical shell type tube sheet（7）With low temperature side tube sheet（1）Welded between middle part
Connect four positioning tie bars（5）, four positioning tie bars（5）Form square arrangement.
2. flexible tube plate waste heat boiler according to claim 1, it is characterised in that：The low temperature side tube sheet（1）Upper setting
Blow-off pipe（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720291982.3U CN207019507U (en) | 2017-03-24 | 2017-03-24 | Flexible tube plate waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720291982.3U CN207019507U (en) | 2017-03-24 | 2017-03-24 | Flexible tube plate waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207019507U true CN207019507U (en) | 2018-02-16 |
Family
ID=61460367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720291982.3U Active CN207019507U (en) | 2017-03-24 | 2017-03-24 | Flexible tube plate waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207019507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759546A (en) * | 2018-05-29 | 2018-11-06 | 珠海格力电器股份有限公司 | A kind of the package structure and hot water machine of expansion cracking proof |
-
2017
- 2017-03-24 CN CN201720291982.3U patent/CN207019507U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759546A (en) * | 2018-05-29 | 2018-11-06 | 珠海格力电器股份有限公司 | A kind of the package structure and hot water machine of expansion cracking proof |
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| GR01 | Patent grant |