CN105180707A - Axial rigidity compensation structure for shell pass cylinder of fixed tube sheet kettle type heat exchanger - Google Patents
Axial rigidity compensation structure for shell pass cylinder of fixed tube sheet kettle type heat exchanger Download PDFInfo
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- CN105180707A CN105180707A CN201510503523.2A CN201510503523A CN105180707A CN 105180707 A CN105180707 A CN 105180707A CN 201510503523 A CN201510503523 A CN 201510503523A CN 105180707 A CN105180707 A CN 105180707A
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- tube sheet
- heat exchanger
- fixed tube
- shell pass
- gusset
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Abstract
The invention relates to an axial rigidity compensation structure for a shell pass cylinder of a fixed tube sheet kettle type heat exchanger. The structure comprises longitudinal rib plates, cushion plates and transverse rib plates. The multiple longitudinal rib plates extend in the axial direction of the shell pass cylinder of the fixed tube sheet kettle type heat exchanger and are uniformly distributed on the cylinder at intervals in the circumferential direction. The two ends of each longitudinal rib plate are welded to the cushion plates respectively. The cushion plates are attached and welded to the inner side faces of leaning cones at the two ends of the cylinder. The joints between the longitudinal rib plates and the leaning cones are distributed in high-conicity areas on the leaning cones in a concentrated mode. The circumferential angle range occupied by each area in the circumferential direction is 90-180 degrees. The multiple transverse rib plates which are arranged at intervals are arranged between every two adjacent longitudinal rib plates, and every two adjacent transverse rib plates are arranged in the axial direction of the cylinder alternately. By means of the axial rigidity compensation structure for the shell pass cylinder of the fixed tube sheet kettle type heat exchanger, the nonuniformity of stress of the tube sheet or a tube bundle caused by inconstant axial rigidity of the shell pass cylinder in the circumferential direction can be effectively reduced, the stress distribution of the tube sheet or the tube bundle is improved, and the design reliability is enhanced.
Description
Technical field
The present invention relates to a kind of axial rigidity collocation structure, be applicable to the shell-side cylinder of fixed tube sheet autoclave heat exchanger in field of petrochemical industry.
Background technology
Energy regenerating utilization is the main path of energy-saving and emission-reduction and Green design, therefore, extensively adopts autoclave heat exchanger to recover energy, especially fixed tube sheet autoclave heat exchanger in petrochemical production device.Fixed tube sheet autoclave heat exchanger shell is made up of large footpath section 4, partially cone 5 and path section 6, path section is connected with tube sheet 7, heat exchanger tube 8, through the pore (as shown in Figure 1) on tube sheet, because axial rigidity is in the difference of circumference, causes tube sheet, tube bank, shell stress skewness.Because structure is special, conventional equipment standard does not provide corresponding computational methods, adds the impact of many design conditions such as operation, accident, cleaning, and designing and calculating is complicated.
Summary of the invention
In order to overcome the above-mentioned defect under prior art, the object of the present invention is to provide a kind of fixed tube sheet autoclave heat exchanger shell pass drum shaft to rigidity compensation structure, cylindrical shell axial rigidity difference in the circumferential effectively can be improved for fixed tube sheet autoclave heat exchanger shell pass cylindrical shell, reduce the adverse effect that shell side large footpath section and path section disalignment cause tube sheet, tube bank, stressed shell uneven, make tube sheet, tube bank distribution of force more even.
Technical scheme of the present invention is:
A kind of fixed tube sheet autoclave heat exchanger shell pass drum shaft is to rigidity compensation structure, comprise some longitudinal gussets, described some longitudinal gussets along the cylindrical shell of fixed tube sheet autoclave heat exchanger shell pass axis extends, in the circumference of described cylindrical shell, evenly arrange in interval, the two ends of described longitudinal gusset are fixedly connected on the medial surface of partially boring at described cylindrical shell two ends respectively, and the junction integrated distribution of described longitudinal gusset and described inclined cone is in partially boring the larger region of tapering.
The position described inclined cone being fixedly connected with described longitudinal gusset is positioned at the position of described inclined cone near the respective end path section of described cylindrical shell.
The circumferential angle that the link position of described some longitudinal gussets on described inclined cone occupies in the circumferential direction of described path section ranges preferably from 90-180 °.
The quantity of described longitudinal gusset is preferably odd number.
Described longitudinal gusset is trapezoidal plate, and two trapezoidal waists are fixedly connected on the medial surface of cone partially, and the plate face of described longitudinal gusset preferably overlaps with the radial direction of described tube sheet, and trapezoidal the going to the bottom of described longitudinal gusset preferably flushes with the internal diameter of described path section.
The trapezoidal distance of going to the bottom of adjacent two pieces of described longitudinal gussets is more preferably greater than 500mm.
For aforementioned fixed tube sheet autoclave heat exchanger shell pass drum shaft described in any one to rigidity compensation structure, the two ends of described longitudinal gusset can also be provided with backing plate, the two ends of described longitudinal gusset are welded on corresponding described backing plate, described backing plate attaches and is welded on the medial surface of described inclined cone of respective end, and the material of described backing plate is preferably close or identical with the material of described inclined cone.
The described backing plate of every one end is an entire plate or one group of plate for being made up of plurality of plates.
Often be provided with one group of horizontal gusset of spaced polylith between adjacent two described longitudinal gussets, horizontal gusset described in two adjacent groups is in the axially interlaced arrangement of described cylindrical shell, described horizontal gusset is trapezoidal plate, and two trapezoidal waists are welded on respectively on described longitudinal gusset of corresponding waist.
The plate face of described horizontal gusset is preferably perpendicular to the axis direction of described cylindrical shell.
Beneficial effect of the present invention is:
Owing to having set up longitudinal gusset between the inclined cone at fixed tube sheet autoclave heat exchanger shell pass cylindrical shell two ends, played drawknot effect, the stress of tube sheet, tube bank be improved significantly, stress distribution is tending towards even.
Realize longitudinal gusset and being fixedly connected with of partially boring by backing plate, not only can increase longitudinal gusset and the contact area of partially boring, improve quality of connection, reduce the peak stress of local, make longitudinal gusset more firm with the connection of partially boring, connection task difficulty can also be reduced.
Increase between longitudinal gusset and horizontal gusset is set, improve the resistance to compression of longitudinal gusset.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present of invention;
Fig. 2 is the inner barrel structural representation of Fig. 1;
Fig. 3 is the cross sectional representation of Fig. 1;
Fig. 4 is that longitudinal gusset is connected enlarged drawing with backing plate;
Fig. 5 is that longitudinal gusset is connected profile with backing plate;
Fig. 6 is longitudinal gusset and horizontal link of boards enlarged drawing;
Fig. 7 is longitudinal gusset and horizontal link of boards profile.
Detailed description of the invention
As shown in figs. 1-7, the invention provides a kind of fixed tube sheet autoclave heat exchanger shell pass drum shaft to rigidity compensation structure, comprise some longitudinal gussets 2, longitudinal rib sheet material matter should be identical with elastic modelling quantity or approximate with the linear expansion coefficient of cylindrical shell material.Described some longitudinal gussets along the cylindrical shell of fixed tube sheet autoclave heat exchanger shell pass axis extends, in the circumference of described cylindrical shell, evenly arrange in interval, the two ends of described longitudinal gusset are fixedly connected on described cylindrical shell two ends respectively and partially bore on the medial surface of 5, and the junction integrated distribution of described longitudinal gusset and described inclined cone is in partially boring the larger region of tapering.The position described inclined cone being fixedly connected with described longitudinal gusset is positioned at the position of described inclined cone near the respective end path section 6 of described cylindrical shell, or perhaps the bottom of partially boring.Simultaneously, tube sheet 7 is provided with in described path section, the link position of described some longitudinal gussets on described inclined cone is 90-180 ° in the circumferential angle scope that the circumferential direction of described tube sheet occupies, be connected to such position, partially cone axial rigidity can be compensated preferably circumferentially change and the variable quantity that produces, improve tube sheet, tube bank stress.
The quantity of described longitudinal gusset is odd number.Described longitudinal gusset is trapezoidal plate, and two trapezoidal waists are fixedly connected on the medial surface of cone partially, and the plate face of described longitudinal gusset overlaps with the radial direction of described tube sheet, and the trapezoidal edge of going to the bottom of described longitudinal gusset preferably flushes with the internal diameter of described path section.
The trapezoidal distance of going to the bottom of adjacent two pieces of described longitudinal gussets is preferably greater than 500mm, so that the installation of poling and internals.
The two ends of described longitudinal gusset can also be provided with backing plate 1, the two ends of described longitudinal gusset are welded on corresponding described backing plate, described backing plate attaches and is welded on the medial surface of described inclined cone of respective end, the material of described backing plate is close or identical with the material of described inclined cone, so that reach good welding quality.
The described backing plate of every one end is an entire plate or one group of plate for being made up of plurality of plates.The one group of plate adopting plurality of plates to form in the present embodiment.
Often be provided with one group of horizontal gusset 3 of spaced polylith between adjacent two described longitudinal gussets, material should be approximate or identical with cylindrical shell material.Horizontal gusset described in two adjacent groups is in the axially interlaced arrangement (as shown in Figure 2) of described cylindrical shell, described horizontal gusset is trapezoidal plate, two trapezoidal waists are welded on the described longitudinal gusset near corresponding waist respectively, and the plate face of described horizontal gusset is perpendicular to the axis direction of described cylindrical shell.The length of the two trapezoidal waists of described horizontal gusset is equal to or less than the trapezoidal height of described longitudinal gusset.
Fig. 1-7 shows the embodiment of a fixed tube sheet autoclave heat exchanger shell pass drum shaft of the present invention to rigidity compensation structure, comprise backing plate 1, longitudinal gusset 2 and horizontal gusset 3, described backing plate by with partially bore identical material and make, backing plate is set and can increases longitudinal gusset and the contact area of partially boring, reduce the peak stress of local.For inclined cone, cone angle along the circumferential direction changes, cause axial rigidity different at different circumferential angle, cause tube sheet, tube bank Stress non-homogeneity, described longitudinal gusset distributes along partially boring with the upper semi-circle of path section junction, partially cone axial rigidity can be compensated circumferentially change and the variable quantity that produces, improve tube sheet, tube bank stress.
Between described longitudinal gusset, horizontal gusset is set, the resistance to compression of longitudinal gusset can be increased.Between described longitudinal gusset, the distance of bottommost is greater than 500mm, makes the installation of poling and internals more convenient.
Axial rigidity collocation structure of the present invention can be applicable to the high stress point place of fixed tube sheet autoclave heat exchanger shell pass, by the design optimization of this partial structurtes, improves heat exchanger shell pass cylindrical shell quality, ensures the safe handling of equipment.
Claims (10)
1. a fixed tube sheet autoclave heat exchanger shell pass drum shaft is to rigidity compensation structure, it is characterized in that comprising some longitudinal gussets, described some longitudinal gussets along the cylindrical shell of fixed tube sheet autoclave heat exchanger shell pass axis extends, in the circumference of described cylindrical shell, evenly arrange in interval, the two ends of described longitudinal gusset are fixedly connected on the medial surface of partially boring at described cylindrical shell two ends respectively, and the junction integrated distribution of described longitudinal gusset and described inclined cone is in partially boring the larger region of tapering.
2. fixed tube sheet autoclave heat exchanger shell pass drum shaft as claimed in claim 1 is to rigidity compensation structure, and the position that it is characterized in that described inclined cone is fixedly connected with described longitudinal gusset is positioned at the position of described inclined cone near the respective end path section of described cylindrical shell.
3. fixed tube sheet autoclave heat exchanger shell pass drum shaft as claimed in claim 2 is to rigidity compensation structure, it is characterized in that the link position of described some longitudinal gussets on described inclined cone is 90-180 ° in the circumferential angle scope that the circumferential direction of described path section occupies.
4. fixed tube sheet autoclave heat exchanger shell pass drum shaft as claimed in claim 3 is to rigidity compensation structure, it is characterized in that the quantity of described longitudinal gusset is odd number.
5. fixed tube sheet autoclave heat exchanger shell pass drum shaft as claimed in claim 4 is to rigidity compensation structure, it is characterized in that described longitudinal gusset is trapezoidal plate, two trapezoidal waists are fixedly connected on the medial surface of cone partially, the plate face of described longitudinal gusset overlaps with the radial direction of described tube sheet, and described longitudinal gusset trapezoidal is gone to the bottom and to be flushed with the internal diameter of described path section.
6. fixed tube sheet autoclave heat exchanger shell pass drum shaft as claimed in claim 5 is to rigidity compensation structure, it is characterized in that the trapezoidal distance of going to the bottom of adjacent two pieces of described longitudinal gussets is greater than 500mm.
7. the fixed tube sheet autoclave heat exchanger shell pass drum shaft as described in claim 1,2,3,4,5 or 6 is to rigidity compensation structure, it is characterized in that the two ends of described longitudinal gusset are also provided with backing plate, the two ends of described longitudinal gusset are welded on corresponding described backing plate, described backing plate attaches and is welded on the medial surface of described inclined cone of respective end, and the material of described backing plate is identical with the material of described inclined cone.
8. fixed tube sheet autoclave heat exchanger shell pass drum shaft as claimed in claim 7 is to rigidity compensation structure, it is characterized in that the described backing plate of every one end is an entire plate or one group of plate for being made up of plurality of plates.
9. fixed tube sheet autoclave heat exchanger shell pass drum shaft as claimed in claim 8 is to rigidity compensation structure, it is characterized in that often between adjacent two described longitudinal gussets, being provided with one group of horizontal gusset of spaced polylith, horizontal gusset described in two adjacent groups is in the axially interlaced arrangement of described cylindrical shell, described horizontal gusset is trapezoidal plate, and two trapezoidal waists are welded on respectively on described longitudinal gusset of corresponding waist.
10. fixed tube sheet autoclave heat exchanger shell pass drum shaft as claimed in claim 9 is to rigidity compensation structure, it is characterized in that the axis direction of plate face perpendicular to described cylindrical shell of described horizontal gusset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503523.2A CN105180707B (en) | 2015-08-17 | 2015-08-17 | Fixed tube sheet autoclave heat exchanger shell pass cylinder axial direction rigidity compensation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503523.2A CN105180707B (en) | 2015-08-17 | 2015-08-17 | Fixed tube sheet autoclave heat exchanger shell pass cylinder axial direction rigidity compensation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105180707A true CN105180707A (en) | 2015-12-23 |
| CN105180707B CN105180707B (en) | 2017-12-15 |
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| CN201510503523.2A Active CN105180707B (en) | 2015-08-17 | 2015-08-17 | Fixed tube sheet autoclave heat exchanger shell pass cylinder axial direction rigidity compensation structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331944Y (en) * | 1998-01-08 | 1999-08-04 | 宋明晨 | Positive-displacement heat exchanger |
| CN2903882Y (en) * | 2006-04-11 | 2007-05-23 | 刘金成 | Shell-and-tube heat exchanger |
| CN201032429Y (en) * | 2007-04-24 | 2008-03-05 | 扬中市腾峰换热设备制造有限公司 | Combined baffling lever wave node tube heat exchanger |
| CN201382733Y (en) * | 2009-03-02 | 2010-01-13 | 上海电气电站设备有限公司 | Connecting neck supporting structure used for laryngeal of condenser of ultra-super critical thermal power generating unit |
| CN202350646U (en) * | 2011-12-09 | 2012-07-25 | 陈玉珍 | Connecting pipe strengthening mechanism used for shell-and-tube heat exchanger |
-
2015
- 2015-08-17 CN CN201510503523.2A patent/CN105180707B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331944Y (en) * | 1998-01-08 | 1999-08-04 | 宋明晨 | Positive-displacement heat exchanger |
| CN2903882Y (en) * | 2006-04-11 | 2007-05-23 | 刘金成 | Shell-and-tube heat exchanger |
| CN201032429Y (en) * | 2007-04-24 | 2008-03-05 | 扬中市腾峰换热设备制造有限公司 | Combined baffling lever wave node tube heat exchanger |
| CN201382733Y (en) * | 2009-03-02 | 2010-01-13 | 上海电气电站设备有限公司 | Connecting neck supporting structure used for laryngeal of condenser of ultra-super critical thermal power generating unit |
| CN202350646U (en) * | 2011-12-09 | 2012-07-25 | 陈玉珍 | Connecting pipe strengthening mechanism used for shell-and-tube heat exchanger |
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| Publication number | Publication date |
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| CN105180707B (en) | 2017-12-15 |
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Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Applicant after: China National Petroleum Corporation Applicant after: China Kunlun Engineering Co., Ltd. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Applicant before: China National Petroleum Corporation Applicant before: China Kunlun Contracting & Engineering Corporation |
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