CN205276992U - Self -supporting chimney - Google Patents
Self -supporting chimney Download PDFInfo
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- CN205276992U CN205276992U CN201520931693.6U CN201520931693U CN205276992U CN 205276992 U CN205276992 U CN 205276992U CN 201520931693 U CN201520931693 U CN 201520931693U CN 205276992 U CN205276992 U CN 205276992U
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Abstract
The utility model discloses a self -supporting chimney, including bottom barrel, transition cylinder body and top barrel, be connected with top cylinder bottom through transition cylinder body on the barrel of bottom, transition cylinder body includes at least one middle part barrel, and bottom barrel, top barrel and middle part barrel are the cylinder barrel, and middle part barrel upper end and lower extreme all are equipped with the reducer, and the reducer is for round platform shape, and from the bottom barrel to the top barrel, each section barrel is diminished by lower supreme diameter one by one, construction convenience, material saving, the atress is reasonable.
Description
Technical field
The utility model relates to chimney technical field, is specifically related to a kind of free-standing chimney.
Background technology
Current domestic conventional Steel Stack has free-standing, drag-line formula, tower-type three kinds of structure patterns. Compared to drag-line formula and tower-type chimney, free-standing steel chimney construction is simple, floor space is little, and cost is moderate, is applied widely. Traditional free-standing chimney generally adopts uniform cross section or gradual change cross section formula. Though uniform cross section formula Steel Stack easy construction, but due to cross sections, footpath such as employings, steel quantity consumption is big, also not too reasonable from antidetonation, the loading angle such as windproof. Given this, except general short Steel Stack, general Steel Stack all adopts gradual change cross section formula, has both saved material, reduces again wind loading and earthquake action. But the shortcoming of gradual change cross section formula chimney a lot of steel plate must be cut into sector in construction, particularly adopting to reduce welding job amount that the part cut away during big block plate is more causes waste, manufacture difficulty is also big in addition.
Summary of the invention
The technical problems to be solved in the utility model is, in view of the foregoing defects the prior art has, it provides a kind of free-standing chimney, and easy construction, saves material, reasonable by power.
The utility model is solve the problems of the technologies described above the technical scheme adopted to be:
A kind of free-standing chimney, comprise bottom cylinder, transition cylinder and upper sleeve, cylinder upper end, described bottom is connected by transition cylinder end lower to upper sleeve, transition cylinder comprises at least one middle cylinder, bottom cylinder, upper sleeve and middle cylinder are cylindrical tube, and middle cylinder top and bottom are equipped with reducing section, and reducing section is truncated cone-shaped, from bottom cylinder to upper sleeve, each section of cylinder from the bottom to top diameter diminish one by one.
By such scheme, described middle cylinder number is one, and the lower end of middle cylinder is provided with the first reducing section, and the first lower end of reducing section is connected with cylinder upper end, bottom, and middle cylinder upper end is provided with the 2nd reducing section, and the 2nd reducing section upper end is connected with upper sleeve.
By such scheme, described reducing section angle of throat is 55 �㡫65 ��.
By such scheme, middle cylinder diameter is the mean value of bottom barrel diameter and upper sleeve diameter sum.
By such scheme, described reducing section top and bottom are respectively provided with annular ribbed stiffener.
By such scheme, the width of described ribbed stiffener is not less than the 1/20 of corresponding barrel diameter, and the thickness of ribbed stiffener is not less than the 1/15 of width and is not less than 8mm.
By such scheme, described upper sleeve arranges brokenly solar or lunar halo, and broken solar or lunar halo is that 2��4 road spiral plates are circumferentially evenly arranged.
By such scheme, the thickness of described broken solar or lunar halo is not less than 6mm, and the width of broken solar or lunar halo is the 1/9��1/11 of upper sleeve diameter, and screw pitch is 4��6 times of upper sleeve diameter.
By such scheme, described upper sleeve upper end is provided with angle steel of putting more energy into.
The utility model has following useful effect:
Each section of cylinder is cylindrical tube, sectional area is reduced by reducing section, reducing section accounting is very little, avoid cylinder to adopt conical gradual change cross section and cause the cutting of the steel plate in order to make cylinder expansion plate big area and welding, reduce the difficulty of construction, make procurement of materials and processing all more convenient, and there is no waste material when columnar chimney splices, reach the object saving material. The utility model had both overcome that uniform cross section formula chimney is uneconomical, unreasonable by power and the shortcoming of gradual change cross section formula chimney processing and fabricating difficulty, remain again uniform cross section formula Steel Stack processing and fabricating convenience, gradual change cross section formula chimney economy, by the rational advantage of power, learn from other's strong points to offset one's weaknesses, there is good social benefit and promotional value, by the cylinder body diameter change of the end to top flexibly, under the prerequisite that Strength and Dformation meets, there is very strong adaptability, its moulding another is unique, a kind of selection of visual appearance also having been given Construction Party many.
Accompanying drawing explanation
Fig. 1 is the structural representation of free-standing chimney in the utility model embodiment;
Fig. 2 is the structural representation of reducing section in the utility model embodiment (comprising the first reducing section and the 2nd reducing section);
Fig. 3 is the I-I sectional view of Fig. 1;
Fig. 4 is the structural representation of upper sleeve upper end in the utility model embodiment;
Fig. 5 is the A-A sectional view of Fig. 4;
In figure, cylinder bottom 1-, 2-middle cylinder, 3-upper sleeve, 4-first reducing section, 5-the 2nd reducing section, 6-breaks solar or lunar halo, 7-ribbed stiffener, and 8-puts more energy into angle steel.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
With reference to shown in Fig. 1��Fig. 5, free-standing chimney described in the utility model, comprise bottom cylinder 1, transition cylinder and upper sleeve 3, cylinder 1 upper end, described bottom is connected by transition cylinder and upper sleeve 3 times ends, transition cylinder comprises at least one middle cylinder 2, bottom cylinder 1, upper sleeve 3 and middle cylinder 2 are cylindrical tube, middle cylinder 2 top and bottom are equipped with reducing section, reducing section is truncated cone-shaped, from bottom cylinder 1 to upper sleeve 3, each section of cylinder from the bottom to top diameter diminish one by one, each section of cylinder is cylindrical tube, sectional area is reduced by reducing section, reducing section accounting is very little, avoid cylinder to adopt conical gradual change cross section and cause the cutting of the steel plate in order to make cylinder expansion plate big area and welding, reduce the difficulty of construction, make procurement of materials and processing all more convenient, and columnar chimney does not have waste material when splicing, reach the object saving material, overcome uniform cross section formula chimney uneconomical, shortcoming with gradual change cross section formula chimney processing and fabricating difficulty unreasonable by power, remain again uniform cross section formula Steel Stack processing and fabricating convenient, gradual change cross section formula chimney economy, by the rational advantage of power, learn from other's strong points to offset one's weaknesses, there is good social benefit and promotional value.
Further, the free-standing chimney provided in the utility model embodiment adopts steel plate to make, and is free-standing steel chimney.
Described middle cylinder 2 number is one, and middle cylinder 2 times ends are provided with first reducing section 4, first reducing section 4 times ends and are connected with bottom cylinder 1 upper end, and middle cylinder 2 upper end is provided with the 2nd reducing section the 5, two reducing section 5 upper end and is connected with upper sleeve 3; First reducing section 4 is set apart from chimney bottom about 0.2��0.3 times of chimney height place, the 2nd reducing section 5 is being set apart from chimney bottom about 0.6��0.7 times of chimney height place, go through twice reducing the end of to top Steel Stack, form diameter by greatly to little three sections of cylindrical tubes.
Described reducing section angle of throat �� is 55 �㡫65 ��.
Middle cylinder 2 diameter is the mean value of bottom cylinder 1 diameter and upper sleeve 3 diameter sum.
Described reducing section top and bottom are respectively provided with annular ribbed stiffener 7.
The width of described ribbed stiffener 7 is not less than the 1/20 of corresponding barrel diameter, and the thickness of ribbed stiffener 7 is not less than the 1/15 of width and is not less than 8mm.
Described upper sleeve 3 arranges brokenly solar or lunar halo 6, and broken solar or lunar halo 6 is that 3 road spiral plates are circumferentially evenly arranged; Avoid chimney generation beam wind to resonance.
The thickness of described broken solar or lunar halo 6 is not less than 6mm, and the width of broken solar or lunar halo 6 is the 1/10 of upper sleeve 3 diameter, and screw pitch is 5 times of upper sleeve 3 diameter.
Described upper sleeve 3 upper end is provided with angle steel 8 of putting more energy into.
Above is only better embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, and the equivalence change therefore done according to the utility model claim, still belongs to protection domain of the present utility model.
Claims (9)
1. a free-standing chimney, it is characterized in that, comprise bottom cylinder, transition cylinder and upper sleeve, cylinder upper end, described bottom is connected by transition cylinder end lower to upper sleeve, and transition cylinder comprises at least one middle cylinder, and bottom cylinder, upper sleeve and middle cylinder are cylindrical tube, middle cylinder top and bottom are equipped with reducing section, reducing section is truncated cone-shaped, from bottom cylinder to upper sleeve, each section of cylinder from the bottom to top diameter diminish one by one.
2. free-standing chimney according to claim 1, it is characterized in that, described middle cylinder number is one, the lower end of middle cylinder is provided with the first reducing section, the first lower end of reducing section is connected with cylinder upper end, bottom, middle cylinder upper end is provided with the 2nd reducing section, and the 2nd reducing section upper end is connected with upper sleeve.
3. free-standing chimney according to claim 1, it is characterised in that, middle cylinder diameter is the mean value of bottom barrel diameter and upper sleeve diameter sum.
4. free-standing chimney according to claim 1, it is characterised in that, described reducing section angle of throat is 55 �㡫65 ��.
5. free-standing chimney according to claim 1, it is characterised in that, described reducing section top and bottom are respectively provided with annular ribbed stiffener.
6. free-standing chimney according to claim 5, it is characterised in that, the width of described ribbed stiffener is not less than the 1/20 of corresponding barrel diameter, and the thickness of ribbed stiffener is not less than the 1/15 of width and is not less than 8mm.
7. free-standing chimney according to claim 1, it is characterised in that, described upper sleeve arranges brokenly solar or lunar halo, and broken solar or lunar halo is that 2��4 road spiral plates are circumferentially evenly arranged.
8. free-standing chimney according to claim 7, it is characterised in that, the thickness of described broken solar or lunar halo is not less than 6mm, and the width of broken solar or lunar halo is the 1/9��1/11 of upper sleeve diameter, and screw pitch is 4��6 times of upper sleeve diameter.
9. free-standing chimney according to claim 8, it is characterised in that, described upper sleeve upper end is provided with angle steel of putting more energy into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520931693.6U CN205276992U (en) | 2015-11-20 | 2015-11-20 | Self -supporting chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520931693.6U CN205276992U (en) | 2015-11-20 | 2015-11-20 | Self -supporting chimney |
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| Publication Number | Publication Date |
|---|---|
| CN205276992U true CN205276992U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520931693.6U Active CN205276992U (en) | 2015-11-20 | 2015-11-20 | Self -supporting chimney |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610895A (en) * | 2018-12-12 | 2019-04-12 | 同济大学 | A kind of steel structure cooling tower |
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2015
- 2015-11-20 CN CN201520931693.6U patent/CN205276992U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610895A (en) * | 2018-12-12 | 2019-04-12 | 同济大学 | A kind of steel structure cooling tower |
| CN109610895B (en) * | 2018-12-12 | 2020-04-28 | 同济大学 | Steel structure cooling tower |
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