CN203684782U - Equal-diameter chimney - Google Patents
Equal-diameter chimney Download PDFInfo
- Publication number
- CN203684782U CN203684782U CN201420025809.5U CN201420025809U CN203684782U CN 203684782 U CN203684782 U CN 203684782U CN 201420025809 U CN201420025809 U CN 201420025809U CN 203684782 U CN203684782 U CN 203684782U
- Authority
- CN
- China
- Prior art keywords
- chimney
- equal
- steel
- urceolus
- diameter
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 239000004567 concrete Substances 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 239000003517 fume Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 abstract description 2
- 239000011150 reinforced concrete Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model discloses an equal-diameter chimney which is applied in the technical field of thermal power generation. The equal-diameter chimney comprises a steel inner cylinder located in the middle and used for discharging smoke, a reinforced concrete outer cylinder for supporting the inner cylinder is arranged on the periphery of the inner cylinder, and steel platforms for overhauling and laterally supporting the inner cylinder are arranged between the outer cylinder and the inner cylinder. The outer diameters of the upper portion and the lower portion of the outer cylinder are equal, the inner diameters of the outer cylinder are gradually reduced from top to bottom, and the thickness of the wall of the root of the outer cylinder is larger than 700 mm. According to the equal-diameter chimney, on the premise that the structural stress is guaranteed, occupied area can be reduced, the use amount of concrete and the steel amount of the steel platforms can be saved, and therefore the chimney building cost can be reduced.
Description
Technical field
The utility model relates to a kind of chimney, specifically a kind of thermal power generation station-service chimney.
Background technology
The flue gas that in power plant, boiler produces all needs by smoke stack emission in atmosphere, and therefore chimney just becomes the landmark of steam power station.Along with the development need of national economy and the raising of social environment consciousness, the design of chimney has caused that people more and more pay close attention to.The height of chimney has important impact for the diffusion of flue gas, and chimney height operated by rotary motion is in 200m left and right at present.Along with power plant installed capacity is risen, the increase of boiler smoke tolerance, causes the number of chimney emission cylinder to increase or inner diameter of steel flue increase, and urceolus diameter also increases thereupon.In view of chimney height and top outlet diameter larger, for chimney structure is firm, generally need to the urceolus of chimney from top to bottom put slope process, make the outer tube structure of chimney be rendered as taper.Barrel sectional area and the barrel diameter of tapered chimney root are all larger, have increased the moment of inertia of chimney root, are conducive to structure stress.But the shortcoming of this kind of design is also very outstanding, floor space is larger conventionally, and the steel using amount of stack shell concrete amount and steel platform also rises thereupon, and cost is high.
Utility model content
The utility model technical issues that need to address are to provide a kind of equal diameter chimney, guaranteeing, under the prerequisite of structure stress, to reduce floor space, save stack shell concrete amount and steel Platform Steel amount.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of equal diameter chimney, comprise and be positioned at the steel inner core of middle part for discharging fume, the periphery of inner core is provided with the steel concrete urceolus for supporting inner core, between urceolus and inner core, be provided with for overhauling and the steel platform of lateral support inner core, the external diameter of described urceolus is equal up and down, and the internal diameter of urceolus progressively diminishes from top to bottom; The wall thickness of described urceolus root is greater than 700mm.
Owing to having adopted technique scheme, the technological progress that the utility model is obtained is:
The utility model can, in the situation that guaranteeing stabilized structure, reduce floor space, saves chimney construction investment.The external diameter of described urceolus is equal up and down, and the internal diameter of urceolus progressively diminishes from top to bottom, and then has reduced concrete amount and steel Platform Steel amount, saves construction investment.The thickness of described urceolus root barrel is greater than 700mm, guarantees that there are enough contacts area on urceolus bottom and basis, stressed more firm.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model.
Wherein, 1, urceolus, 2, inner core, 3, steel platform.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details:
A kind of equal diameter chimney, its cross-section structure as shown in Figure 1, comprises urceolus 1, inner core 2 and steel platform 3.Inner core 2 is positioned at middle part, can be ordinary steel inner core or special anti-corrosion material inner core, for smoke evacuation.Between inner core 2 and urceolus 1, be provided with steel platform 3, for lateral support inner core, and facilitate maintainer to carry out inspection operation.Urceolus 1 is reinforced concrete structure, is arranged on inner core outside, for bearing the horizontal loadings such as wind load; The external diameter of urceolus 1 is equal up and down, and the inner chamber of urceolus 1 is funnel type structure, and the internal diameter of urceolus 1 progressively diminishes from top to bottom; The root barrel thickness of chimney urceolus 1 is greater than 700mm, increases barrel root section long-pending, is convenient to structure stress.Therefore the utility model, in the situation that smoke evacuation inner diameter of steel flue is certain, had both guaranteed by changing outer tube structure that chimney overall structure was firm, had reduced again floor space, had reduced steel concrete consumption and steel Platform Steel amount, thereby had saved chimney construction investment.
Claims (1)
1. an equal diameter chimney, comprise and be positioned at the steel inner core (2) of middle part for discharging fume, the periphery of inner core is provided with the steel concrete urceolus (1) for supporting inner core (2), between urceolus (1) and inner core (2), be provided with the steel platform (3) for maintenance and lateral support inner core (2), it is characterized in that: the external diameter of described urceolus (1) is equal up and down, and the internal diameter of urceolus (1) progressively diminishes from top to bottom; The wall thickness of described urceolus (1) root is greater than 700mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025809.5U CN203684782U (en) | 2014-01-16 | 2014-01-16 | Equal-diameter chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025809.5U CN203684782U (en) | 2014-01-16 | 2014-01-16 | Equal-diameter chimney |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684782U true CN203684782U (en) | 2014-07-02 |
Family
ID=51006704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420025809.5U Expired - Lifetime CN203684782U (en) | 2014-01-16 | 2014-01-16 | Equal-diameter chimney |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203684782U (en) |
-
2014
- 2014-01-16 CN CN201420025809.5U patent/CN203684782U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201507145U (en) | Statically indeterminate multi-pivot hanging chimney with entire steel inner cylinder for power plant | |
| EP3255000B1 (en) | Arrangement structure of stacker device | |
| CN203684782U (en) | Equal-diameter chimney | |
| CN101879399B (en) | Structure and method for jacking absorption tower from middle segment | |
| CN202728971U (en) | Horizontal storage tank | |
| CN201744297U (en) | Structure for lifting absorbing tower from middle | |
| CN103883139B (en) | Using the rope nethike embrane cooling tower cylinder structural system that chimney is interior mast | |
| CN201575442U (en) | Boiler for ship | |
| CN103883152B (en) | A kind of novel rope net membrane structure inner core cigarette tower combined structure system | |
| CN203253909U (en) | Anti-oxidation device used for molten steel casting | |
| CN201744276U (en) | Structure for lifting-up absorption tower from the intermediate section | |
| CN202400843U (en) | Dry absorption tower for producing concentrated sulfuric acid | |
| CN202893507U (en) | Wet sintering and desulfurizing flue gas deep purifying device | |
| CN206600831U (en) | Desulfurizing tower and chimney combined into one apparatus | |
| CN201367754Y (en) | Three-pipe free-standing steel chimney in power plant | |
| CN203821941U (en) | Single-inner-cylinder chimney applicable to double-furnaceconnection and capable of realizing independent maintenance | |
| CN202370285U (en) | Rectangular multi-tube sleeve type smokestack for waste incineration power station | |
| CN201756833U (en) | Assembling type fence in concrete | |
| CN205182972U (en) | Cyclone dust collector | |
| CN204201922U (en) | Flue gas processing device after a kind of coal boiler | |
| CN219441191U (en) | Tower body bottom structure of electrolytic flue gas desulfurization absorption tower | |
| CN204718112U (en) | A kind of environmental protection coal-fired boiler | |
| CN204001805U (en) | The replacing constructing structure of the circular dome of a kind of Vertical Steel Oil Tank storage tank | |
| CN203615752U (en) | Smelting furnace waste heat boiler wall | |
| CN202598580U (en) | Interchangeable arch of biomass and coal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee after: POWERCHINA HEBEI ELECTRIC POWER ENGINEERING Co.,Ltd. Address before: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee before: HEBEI ELECTRIC POWER DESIGN & Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |