CN114838205A - Suspension type support tube plate - Google Patents
Suspension type support tube plate Download PDFInfo
- Publication number
- CN114838205A CN114838205A CN202110139612.9A CN202110139612A CN114838205A CN 114838205 A CN114838205 A CN 114838205A CN 202110139612 A CN202110139612 A CN 202110139612A CN 114838205 A CN114838205 A CN 114838205A
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- CN
- China
- Prior art keywords
- support
- tube plate
- plate
- tube
- suspended
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/12—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
- F16L3/133—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing and hanging from a pendant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
Abstract
The invention discloses a suspension type support tube plate, which comprises support lugs, a vertical frame plate, rib plates and a web plate, wherein the number of the rib plates is equal to the number of tube rows supported by the tube plate or the number of the tube rows plus one, the support lugs are positioned at two sides of the tube plate, the suspension support is realized through simple support constraint, the contact positions of the suspension support are the lower surfaces of the support lugs at the left side and the right side of the tube plate, the height of the support lugs is smaller than that of the tube plate, and the tube plate part below the support lugs after the tube plate is installed is in a suspension state. The invention can optimize the stress state of the tube plate, reduce the whole and local stress value, save the material consumption and reduce the cost.
Description
Technical Field
The invention relates to the field of supporting tube plates of industrial furnace coil pipes in petrochemical and electric power industries, in particular to a suspended supporting tube plate for a convection coil pipe of a tubular heating furnace.
Background
The coil pipe is generally used in industrial furnaces in the fields of petrochemical industry, thermal power, nuclear power and the like, the coil pipe supporting structure is mainly used for supporting the pipe plate, and the pipe plate and the coil pipe are both in high-temperature smoke, so that the pipe plate is made of high-alloy steel, such as ZG25Cr12Ni and ZG25Cr20 Ni. Because the traditional design method is mainly used for the lower support type tube plate, the calculated stress of the lower support tube plate is larger due to the larger height of the tube plate, and the width and the thickness of the tube plate are further increased. Because high alloy steel is expensive, the traditional tube plate is made of more materials, and finally the investment cost is increased. For example, patent CN107796258, whose tube plate adopts a top suspension mode, has simple stress characteristics, but the lack of effective constraint of the tube plate causes vibration problem, and the lack of out-of-plane support of the tube plate structure itself causes strength problem; in addition, the structure is only suitable for the top suspension occasion, all the pipe plate coils and the weight of the pipe plates are concentrated on the uppermost pipe plate, and the design is not reasonable. With the increasing of the industrial furnace, the number of the coil pipes is increased, the span of the supporting tube plate is increased, new requirements on the tube plate and the design are provided, and the requirements on the reliability and the economy are improved.
Therefore, aiming at the short plate of the existing supporting tube plate design structure, the stress characteristic of the tube plate is fully utilized to carry out fine design from the structural mechanics angle according to the actual span, height and other parameters of the tube plate, and a more optimized tube plate form is provided. On the one hand, the cost can be reduced, and on the other hand, the reliability requirement of large-scale devices can be met.
Disclosure of Invention
Aiming at the defects of the existing supporting tube plate, the invention provides the suspension type supporting tube plate, which optimizes the stress state of the tube plate and reduces the stress value of the tube plate by changing the position of the traditional supporting tube plate, thereby reducing the material consumption of the tube plate to reduce the cost and improve the reliability of the tube plate.
The present invention achieves the above object by the following technical means.
The invention provides a suspended support tube plate, which comprises one web plate, two rib plates, two vertical frame plates and support lugs, wherein the number of the web plates is one, the number of the support lugs is two, the number of the vertical frame plates is equal to the number of tube rows supported by the tube plate or the number of the tube rows is one plus the number of the tube rows supported by the tube plate, the support lugs are positioned at two sides of the tube plate, the suspended support is realized by simple support constraint, the contact positions of the suspended support are the lower surfaces of the support lugs at the left side and the right side of the tube plate, and the height of the support lugs is less than that of the tube plate, so that the tube plate part below the tube plate after the tube plate is installed is in a suspended state.
The invention is further technically characterized in that: the height ratio between the support lug and the tube plate depends on the span and height of the tube plate, and is usually greater than 0 and less than 1, preferably greater than 0 and less than or equal to 0.8, and more preferably greater than 0 and less than or equal to 0.75.
The invention is further technically characterized in that: the upper edges of the lugs are preferably flush with, but not limited to, the upper edges of the first layer of stiffener plates.
The invention is further technically characterized in that: the lower surface of the support lug is preferably aligned with the lower edge of a certain layer of rib plates below the second layer, namely the lower surface of the support lug is preferably aligned with the lower edge of a rib plate of the second layer, or the third layer, or the fourth layer … … or the Nth layer, wherein N is equal to the number of tube rows for supporting the tube plate, but the lower surface of the support lug and the reinforcing rib plate are not limited to be aligned.
Compared with the prior art, the invention has the following effects: the suspended support tube plate provided by the invention fully considers the factors such as span and height parameter influence of the tube plate, stress state of the tube plate and the like, and changes the traditional bottom support structure of the tube plate into a middle-upper suspended support. By selecting a proper height ratio of the support lug to the tube plate and a proper position relationship between the support lug and the tube plate, the normal stress borne by the tube plate can be reduced, and the purpose of reducing the material consumption of the tube plate is further achieved; secondly, under the optimal condition, the force transmission path of the tube plate is more reasonable by leveling the support lugs with the transverse frame plate and the rib plates, and the stress borne by the support lugs and the vertical frame plate can be reduced to a certain degree; thirdly, the maximum stress position of the tube plate can be moved to a lower temperature position through the suspension type support, the allowable stress of the material is improved, and the material consumption can be further reduced.
The invention is described in further detail below with reference to the figures and the detailed description, which, however, do not limit the scope of the invention.
Drawings
Fig. 1 is a schematic diagram of a suspended support tube sheet according to the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a conventional tubesheet.
Fig. 4 is an installation view of a suspended support tube sheet of the present invention.
Fig. 5 is an installation view of another suspended support tube sheet of the present invention.
Fig. 6 is a sectional view B-B of fig. 5.
The reference symbols shown in the figures are:
1-lug, 2-vertical frame plate, 3-first layer rib plate, 4-second layer rib plate, 5-third layer rib plate, 6-fourth layer rib plate, 7-fifth layer rib plate, 8-sixth layer rib plate, 9-web plate, 10-guide constraint and 11-simply support constraint.
Detailed Description
As shown in fig. 1, 2 and 4, the suspension type support tube plate of the invention comprises support lugs 1, upright frame plates 2, web plates 9 and six layers of rib plates 3-8, wherein the number of the support lugs 1 is two, the number of the upright frame plates 2 is two, the number of the web plates 9 is one, the number of the rib plates is six, namely, a first layer of rib plate 3, a second layer of rib plate 4, a third layer of rib plate 5, a fourth layer of rib plate 6, a fifth layer of rib plate 7 and a sixth layer of rib plate 8, the support lugs 1 are positioned at the upper parts of two sides of the tube plate, the contact positions of specific suspension supports (not shown in the suspension support figure) are the lower surfaces of the support lugs at the left side and the right side of the tube plate, and the height of the support lugs 1 is smaller than that of the tube plate, so that the tube plate part is in a suspension state after the tube plate is installed.
The height ratio of the support lug 1 to the tube plate depends on the parameters such as span and height of the tube plate, and is usually greater than 0 and less than 1, preferably greater than 0 and less than or equal to 0.8, and more preferably greater than 0 and less than or equal to 0.75.
The upper edge of the support lug 1 is preferably flush with the upper edge of the first layer rib plate 3.
The lower surface of the lug 1 is aligned with, but not limited to, the third layer rib 5, preferably aligned.
As shown in figure 4, the invention relates to an installation diagram of a suspended support tube plate, wherein in figure 4, the tube plate consists of two support lugs 1, two vertical frame plates 2, rib plates 3-8 (six layers in all) and a web plate 5. The support lugs 1 are located at the upper parts of two sides of the tube plate, the upper edges of the support lugs are flush with the upper edges of the first layer of rib plates 3, the lower edges of the support lugs 1 are flush with the third layer of rib plates 4, the bottoms of the two support lugs are simply supported and restrained 11, the upper parts of the support lugs 1 are guided and restrained in the outer direction of the plane, and the simply supported and restrained 11 and the guided and restrained 10 are located on the upright columns on the two sides.
Referring to fig. 5, another installation diagram of a suspended support tube plate of the invention is shown, in fig. 5, the tube plate is composed of two support lugs 1, two vertical frame plates 2, rib plates 3-8 (six layers in total) and a web plate 9. The detailed structure of the tube plate support lug 1 of this embodiment is shown in fig. 6. The support lugs 1 are located at the upper parts of two sides of the tube plate, the upper edges of the support lugs 1 are flush with the upper edges of the transverse frames, the lower edges of the support lugs are flush with the first layer of rib plates, the bottoms of the two support lugs are restrained by simple supports 11, and the simple support restraint structures are fixed on the upright columns at two sides.
In order to verify the effect of the suspended support tube plate, the traditional tube plate (shown in figure 3) and the suspended tube plate (shown in figure 1) are respectively subjected to stress calculation by adopting general finite element calculation software, wherein the appearance size and the thickness size of the two model structures are the same, and the difference is that the traditional tube plate is supported by a bottom simple support, and the suspended tube plate is supported by an upper simple support. The calculation result shows that the maximum normal stress of the traditional tube plate is 4.5MPa, the maximum normal stress of the suspended tube plate is 3.8MPa, and the stress value is reduced by 15.6 percent. On the other hand, the maximum stress temperature of the traditional tube plate is 819 ℃, the allowable stress of the corresponding material is 22.5MPa, the maximum stress temperature of the suspended tube plate is 754 ℃, the allowable stress of the material is 35.5MPa, and the allowable stress of the material is increased by 57.7%.
The above description is illustrative, but not exhaustive, of an embodiment of the present invention in which the tube sheet is suspended. And should not be construed as limiting the scope of the invention accordingly. Numerous variations and modifications may be effected by those of ordinary skill in the art without departing from the scope or spirit of the described embodiments, which are within the scope of the invention.
Claims (6)
1. A suspended support tube sheet characterized by: the suspended support tube plate comprises one web plate, two rib plates, two upright frame plates and two support lugs, wherein the number of the web plates is equal to the number of tube rows supported by the tube plate or the number of the tube rows is increased by one, the support lugs are positioned on two sides of the tube plate and suspended and supported on the lower surfaces of the support lugs on two sides of the tube plate, and the height of the support lugs is smaller than that of the tube plate, so that the tube plate part below the support lugs after the tube plate is installed is in a suspended state.
2. A suspended support tube sheet as set forth in claim 1, wherein: the support lugs are positioned on the left side and the right side of the tube plate, the suspension support is realized through simple support constraint, and the contact positions of the suspension support are the lower surfaces of the support lugs on the left side and the right side of the tube plate.
3. A suspended support tube sheet as set forth in claim 1, wherein: the height ratio of the support lug to the tube plate is greater than 0 and less than or equal to 0.8.
4. The suspended support tube sheet of claim 1, wherein: the upper edges of the support lugs are flush with the upper edges of the first layer of rib plates.
5. The suspended support tube sheet of claim 1, wherein: the lower surface of the support lug is aligned with the lower edge of a certain layer of rib plate below the second layer.
6. The suspended support tube sheet of claim 1 or 3, wherein: the height ratio of the support lug to the tube plate is greater than 0 and less than or equal to 0.75.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139612.9A CN114838205A (en) | 2021-02-02 | 2021-02-02 | Suspension type support tube plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139612.9A CN114838205A (en) | 2021-02-02 | 2021-02-02 | Suspension type support tube plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114838205A true CN114838205A (en) | 2022-08-02 |
Family
ID=82561209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110139612.9A Pending CN114838205A (en) | 2021-02-02 | 2021-02-02 | Suspension type support tube plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114838205A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19606201A1 (en) * | 1996-02-21 | 1997-08-28 | Balcke Duerr Gmbh | Device for holding parallel pipes in heat exchanger |
| US20050279487A1 (en) * | 2004-06-18 | 2005-12-22 | Wanni Amar S | Anti-vibration tube support |
| CN101061363A (en) * | 2004-11-22 | 2007-10-24 | 埃克森美孚研究工程公司 | Anti-vibration tube support |
| CN203454779U (en) * | 2013-08-27 | 2014-02-26 | 中国石化工程建设有限公司 | Dual-vertical rib tube sheet |
| CN203488492U (en) * | 2013-09-13 | 2014-03-19 | 中国石化工程建设有限公司 | Double-lug type tube sheet supporting frame |
| CN107796258A (en) * | 2017-11-09 | 2018-03-13 | 无锡华光锅炉股份有限公司 | The tube plate structure of vertical exhaust-heat boiler |
| CN207163231U (en) * | 2017-08-29 | 2018-03-30 | 洛阳瑞泽石化工程有限公司 | Petrochemical industry tubular heater fish belly type sagging plate |
| CN208123629U (en) * | 2018-04-04 | 2018-11-20 | 北京城建二建设工程有限公司 | Outdoor overhead lifting pipeline equipment |
| CN209229150U (en) * | 2018-12-12 | 2019-08-09 | 上海宝冶集团有限公司 | Air conditioner cold-heat waterpipe fixed support device |
| JP2020176692A (en) * | 2019-04-19 | 2020-10-29 | 有限会社アールストーン | Pipeline suspended support tool |
-
2021
- 2021-02-02 CN CN202110139612.9A patent/CN114838205A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19606201A1 (en) * | 1996-02-21 | 1997-08-28 | Balcke Duerr Gmbh | Device for holding parallel pipes in heat exchanger |
| US20050279487A1 (en) * | 2004-06-18 | 2005-12-22 | Wanni Amar S | Anti-vibration tube support |
| CN101061363A (en) * | 2004-11-22 | 2007-10-24 | 埃克森美孚研究工程公司 | Anti-vibration tube support |
| CN203454779U (en) * | 2013-08-27 | 2014-02-26 | 中国石化工程建设有限公司 | Dual-vertical rib tube sheet |
| CN203488492U (en) * | 2013-09-13 | 2014-03-19 | 中国石化工程建设有限公司 | Double-lug type tube sheet supporting frame |
| CN207163231U (en) * | 2017-08-29 | 2018-03-30 | 洛阳瑞泽石化工程有限公司 | Petrochemical industry tubular heater fish belly type sagging plate |
| CN107796258A (en) * | 2017-11-09 | 2018-03-13 | 无锡华光锅炉股份有限公司 | The tube plate structure of vertical exhaust-heat boiler |
| CN208123629U (en) * | 2018-04-04 | 2018-11-20 | 北京城建二建设工程有限公司 | Outdoor overhead lifting pipeline equipment |
| CN209229150U (en) * | 2018-12-12 | 2019-08-09 | 上海宝冶集团有限公司 | Air conditioner cold-heat waterpipe fixed support device |
| JP2020176692A (en) * | 2019-04-19 | 2020-10-29 | 有限会社アールストーン | Pipeline suspended support tool |
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