CN207163231U - Petrochemical industry tubular heater fish belly type sagging plate - Google Patents
Petrochemical industry tubular heater fish belly type sagging plate Download PDFInfo
- Publication number
- CN207163231U CN207163231U CN201721094761.3U CN201721094761U CN207163231U CN 207163231 U CN207163231 U CN 207163231U CN 201721094761 U CN201721094761 U CN 201721094761U CN 207163231 U CN207163231 U CN 207163231U
- Authority
- CN
- China
- Prior art keywords
- fish belly
- belly type
- under control
- area under
- cloth area
- 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 is related to a kind of petrochemical industry tubular heater fish belly type sagging plate, it includes the cloth area under control of base cross members and support thereon, per comb hole, downside is equipped with reinforcement in the cloth area under control, section of the base cross members along cloth area under control pore radial direction is that top edge is horizontal, the raised fish belly type section of lower edge；Positioned at the reinforcement of row is most descended axially fish belly type section is also formed along cloth area under control pore to both sides protrusion.The utility model is different with the sagging plate of traditional structure, and it does to traditional structure, and smaller change is identical with common tube plate mounting means, and the power born in the case where not changing tube sheet bracket and pillar construction is bigger.New fish belly type tube sheet, which saves material, when under equal conditions meeting to require reduces cost.The more common sagging plate of fish belly type tube sheet improves economy compared to design structure is optimized.
Description
Technical field
A kind of petrochemical industry tubular heater convection section sagging plate structure is the utility model is related to, more particularly to one kind
Structure of the heating furnace sagging plate under by larger load situation.
Background technology
In radiation-convection tubular heater, sagging plate is the support member for supporting the horizontal boiler tube of convection section, directly
Connect among flue gas.According to SH/T3036《General oil refining flame heating furnace》The middle 10.1.3 bars " strong point of horizontal tube two
Between boiler tube maximum pendulous tank be 35 times of pipe external diameters or 6m (20ft), take its small value." requirement, heating tube in section of convection chamber often needs
Sagging plate is used to support.
This sagging plate in large-scale side's stove more than dosage and single tube sheet materials also tend to it is more, and in the row of bottom one
Between tube sheet flue-gas temperature be 800 DEG C or so, according to code requirement, the boiler tube branch positioned at shielding section and outside refractory material
Support member, design temperature should be equal to flue-gas temperature plus 100 DEG C and not less than 870 DEG C, and material should use 25Cr-12Ni or 25Cr-
20Ni or higher steel alloy, costly, conventional tube sheet materials are more for steel alloy price, waste of materials and increase investment.
In some Large-scale Heaters, because overall structure limitation sagging plate span is often larger, what sagging plate was born
Load is larger, causes size in tubesheet calculation, material also accordingly to increase.Sagging plate supporting form is freely-supported, is calculating span centre
During maximum (normal) stress on section, equivalent tube sheet whole cross section chosen around X-axis, the net section modulus of Y-axis it is size-limited, can not
Cause tube plate structure unreasonable by size design is excessive.
The content of the invention
The utility model purpose is to provide a kind of petrochemical industry tubular heater fish belly type sagging plate, makes its structure
It is compact and suitable for by larger load situation, reduce sagging plate material use, lifted economy.
The purpose of this utility model and to solve its technical problem realized using following technical scheme.According to this reality
With a kind of petrochemical industry tubular heater fish belly type sagging plate of new proposition, it includes base cross members 1 and supports it
On cloth area under control 4, the cloth area under control 4 per being equipped with reinforcement 2 on the downside of comb hole, the base cross members 1 along the pore of cloth area under control 4 radially
Section it is horizontal for top edge, the raised fish belly type section of lower edge；Managed positioned at the reinforcement 2 of row is most descended along cloth area under control 4
Hole axle also forms fish belly type section to both sides protrusion.
The utility model has clear advantage and beneficial effect compared with prior art.By above-mentioned technical proposal, sheet
Utility model petrochemical industry tubular heater can reach suitable technological progress and practicality with fish belly type sagging plate, and have
There is the extensive value in industry, it at least has following advantages：With the increasing in sagging plate bearing length (stringing region)
Add, tube sheet moment of flexure also accordingly increases, and moment of flexure is maximum in the middle part of tube sheet, and resisting this moment of flexure will be can be provided by the upper lower edge of beam
Pulling force and pressure be multiplied by depth of beam to realize, this requires tube sheet center section to have the net section mould bigger than both ends
Amount, so the ability that beam increases its bending resistance just strengthens.And the utility model base cross members and cloth area under control most descend the comb region to be
Fish belly type structure, fish belly type structure type are that intermediate cross-section is big, are progressively reduced to both ends, the small form in two broad in the middle, shape
As the belly of fish, profile smooth-going, bottom surface smooth finish, the lines flow smoothly.Its section rigidity is big, and holistic resistant behavior is good,
Its bending strength, commensurate structure requirement can be increased using the tube sheet of this fish belly form, save material.
The utility model is different with the sagging plate of traditional structure, and it does smaller change to traditional structure and pacified with common tube plate
Dress mode is identical, and the power born in the case where not changing tube sheet bracket and pillar construction is bigger.It is under equal conditions full
New fish belly type tube sheet, which saves material, when requiring enough reduces cost.The more common sagging plate of fish belly type tube sheet is compared and optimizes design
Structure, improve economy.
Brief description of the drawings
Fig. 1 is the front view of the utility model petrochemical industry tubular heater fish belly type sagging plate；
Fig. 2 is the A-A sectional views of the utility model petrochemical industry tubular heater fish belly type sagging plate；
Fig. 3 is the B-B sectional views of the utility model petrochemical industry tubular heater fish belly type sagging plate.
【Main element symbol description】
1：Base cross members
2：Reinforcement
3：Journal stirrup
4：Cloth area under control
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined goal of the invention taken, below
With reference to accompanying drawing and preferred embodiment, to according to the utility model proposes petrochemical industry tubular heater fish belly type sagging plate
Its embodiment, structure, feature and its effect, describe in detail as after.
Fig. 1-3 are referred to, it shows for the structure of the utility model petrochemical industry tubular heater fish belly type sagging plate
It is intended to, the tube sheet includes the cloth area under control 4 of base cross members 1 and support thereon, and per comb hole, downside is equipped with reinforcement in the cloth area under control 4
Muscle 2, the both sides of cloth area under control 4 are provided with journal stirrup 3.Section of the base cross members 1 along the pore radial direction of cloth area under control 4 is that top edge is horizontal, under
The fish belly type section of edge protuberance.Axially also formed to both sides protrusion along the pore of cloth area under control 4 positioned at the reinforcement 2 of row is most descended
Fish belly type section.
Fish belly type section is the small section in two broad in the middle, maximum among it, is progressively reduced to both ends.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is done any formal
Limitation, although the utility model is disclosed above with preferred embodiment, but be not limited to the utility model, it is any ripe
Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, according to the technical essence of the utility model to any simple modification, equivalent change and modification made for any of the above embodiments, still
Belong in the range of technical solutions of the utility model.
Claims (1)
1. a kind of petrochemical industry tubular heater fish belly type sagging plate, it includes base cross members (1) and supported thereon
Cloth area under control (4), per comb hole, downside is equipped with reinforcement (2) in the cloth area under control (4), it is characterised in that：Base cross members (1) edge
The section of cloth area under control (4) pore radial direction is that top edge is horizontal, the raised fish belly type section of lower edge；Add positioned at most descending described in row
Strengthening tendons (2) axially also forms fish belly type section along cloth area under control (4) pore to both sides protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721094761.3U CN207163231U (en) | 2017-08-29 | 2017-08-29 | Petrochemical industry tubular heater fish belly type sagging plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721094761.3U CN207163231U (en) | 2017-08-29 | 2017-08-29 | Petrochemical industry tubular heater fish belly type sagging plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207163231U true CN207163231U (en) | 2018-03-30 |
Family
ID=61719518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721094761.3U Expired - Fee Related CN207163231U (en) | 2017-08-29 | 2017-08-29 | Petrochemical industry tubular heater fish belly type sagging plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207163231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838205A (en) * | 2021-02-02 | 2022-08-02 | 中国石油化工股份有限公司 | Suspension type support tube plate |
-
2017
- 2017-08-29 CN CN201721094761.3U patent/CN207163231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838205A (en) * | 2021-02-02 | 2022-08-02 | 中国石油化工股份有限公司 | Suspension type support tube plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20210829 |