CN203820695U - Medium-pressurejacket type coke ovenheat-exchangeriser tube - Google Patents
Medium-pressurejacket type coke ovenheat-exchangeriser tube Download PDFInfo
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- CN203820695U CN203820695U CN201420233849.9U CN201420233849U CN203820695U CN 203820695 U CN203820695 U CN 203820695U CN 201420233849 U CN201420233849 U CN 201420233849U CN 203820695 U CN203820695 U CN 203820695U
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- upcast
- middle pressure
- chuck
- medium
- pressurejacket
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Abstract
The utility model discloses a medium-pressurejacket type coke ovenheat-exchangeriser tube. The riser tube structurally comprises two parts, wherein a first part is a riser tube body, and a second part is a medium-pressurejacket; the medium-pressurejacket and the riser tube body are welded to form a closed space by the aid of jacket sealing cones at two ends of the medium-pressurejacket respectively, multiple stretching pieces are arranged between the riser tube body and the medium-pressurejacket to firmly connect the riser tube body and the medium-pressurejacket into a whole, and a plurality of small rectangular or rhombic spaces are formed between the medium-pressurejacket and a riser tube cylinder. Asoft water inlet pipe and a vapor-and-liquid-phase outlet pipe are welded at lower and upper parts of the medium-pressurejacket. The riser tube has the advantages as follows: the external pressure stability of the riser tube cylinder and the pressure-bearing capacity of the medium-pressurejacket are improved, the riser tube is simple to machine and manufacture, and the efficient heat-exchangeriser tube is provided for raw coke oven gaswaste heat recovery.
Description
Technical field:
The utility model relates to metallurgical coking industry waste heat of coke oven crude gas recovery and utilization technology field, relates in particular to a kind of middle pressure jacketed type coke oven heat exchange upcast.
Background technology:
At present domestic known coking produces a large amount of high temperature raw gas (approximately 750 ℃) in producing, through upcast, bridge tube, enter effuser cooling with cyclic ammonia water, cyclic ammonia water absorbs heat and vaporization in a large number, high temperature raw gas is reduced to 80～85 ℃ in effuser, enter gas purification workshop and process, the heat that high temperature raw gas is taken out of wastes.Since China's 20 century 70s, carried out the trial of raw gas waste heat recovery, major part is to adopt jacketed type upcast structure, also claims coke oven coke oven uprising tube apparatus for vapour-cooling to reclaim the waste heat of coal oven dithio-gas always.The waste heat vaporization that soft water absorbs raw gas in jacketed type upcast produces afterheat steam, for producing or life, but be subject to the restriction of jacketed type upcast structure, it is little that upcast cylindrical shell bears external pressure ability, can only produce the low-pressure steam of 0.2MPa～0.6MPa, afterwards because the reason coke oven coke oven uprising tube apparatus for vapour-cooling such as the reason in design, manufacture and security of system, stability and economy are stopped using one after another.
So far do not find maturation, reliable, efficient, economic waste heat of coke oven crude gas recovery and utilization technology, need work out a kind of waste heat of how better recovery raw gas, and the coke oven heat exchange upcast that security of system, stability and economy are improved greatly.
Utility model content:
In order to overcome the shortcoming of existing coke oven jacketed type upcast in raw gas heat recovery, it is high that the utility model has designed a kind of cylindrical shell bearing capacity, in waste heat of coke oven crude gas is recycled, can produce the middle pressure jacketed type coke oven heat exchange upcast of middle pressure steam, thereby expand the purposes that waste heat of coke oven crude gas is recycled.
The technical solution of the utility model is:
A middle pressure jacketed type coke oven heat exchange upcast, structure is divided into upcast and middle pressure chuck two portions; Upcast is integrated by upper lower flange and upcast cylindrical shell structure;
1), be provided with numerous support draw pieces between upcast cylindrical shell and middle pressure chuck, support draw piece firmly connects into an integral body by upcast and middle pressure chuck;
2), support draw piece forms many little spaces between upcast cylindrical shell and middle pressure chuck.
3), the two ends up and down of middle pressure chuck are designed to respectively pyramidal structure-chuck sealing cone; Chuck sealing cone one side and the welding of middle pressure chuck, opposite side and upcast barrel soldering are fixed, and make the gap between middle pressure chuck and upcast cylindrical shell sealed at both ends up and down at upcast, will between middle pressure chuck and upcast, form an enclosed space;
4), soft water inlet tube and vapour-liquid two-phase outlet pipe are welded on respectively bottom and the top of middle pressure chuck, and are communicated with the gap between middle pressure chuck with upcast cylindrical shell.
Described support draw piece presses square or rhombus is arranged, has formed many little rectangles or rhombus space between middle pressure chuck and upcast cylindrical shell.
Described chuck sealing cone is fold type or circular arc type.
Middle pressure chuck is to take conventional jacket as basis, adopts certain strengthening measure to strengthen the stability of external pressure of tank body, to save material, can improve the bearing capacity between chuck again.The operating pressure of middle pressure chuck can reach 2.5～4MPa, and the operating pressure of conventional jacket is only 0.6MPa, this shows that original jacketed type upcast can only produce pressure≤0.6MPa in raw gas heat recovery, low-pressure steam, and middle pressure jacketed type coke oven heat exchange upcast can produce the middle pressure steam of pressure >=1.6MPa in raw gas heat recovery, thereby expand the purposes of raw gas heat recovery, as in can utilizing, press afterheat steam generating etc.Middle pressure jacketed type coke oven heat exchange upcast meets the requirement of waste heat of coke oven crude gas retrieving arrangement technique in the normal use that meets existing coke oven production facility, reduces engineered investment.
The now requirement of the pressure of medium to upcast cylindrical shell wall thickness in chuck, only relevant with the spacing of adjacent two support draw pieces, and it is irrelevant with upcast barrel diameter, can there is not the failure phenomenon that upcast cylindrical shell causes because of external pressure under the effect of pressure medium, therefore upcast cylindrical shell does not need the pressure of considering chuck medium to cause unstability and carry out external pressure calculating, thereby has greatly improved the bearing capacity of middle pressure chuck and upcast.
Middle pressure jacketed type coke oven heat exchange upcast structure adopts strengthening measure on the whole, the stability of external pressure of upcast cylindrical shell and the bearing capacity between chuck have been improved, can in raw gas heat recovery, produce and be greater than 1.6MPa middle pressure steam, improve the economic benefit of waste heat recovery, expanded the purposes that waste heat of coke oven crude gas is recycled.
The utility model changes original upcast into middle pressure jacketed type coke oven heat exchange upcast, security, stability and the economy of waste heat of coke oven crude gas retrieving arrangement have been improved, there is device structure simple, environmental benefit improves, the advantages such as energy-saving effect is remarkable, and processing and manufacturing is easy, construction investment reduction, when meeting the normal use of existing coke oven production facility, meet the requirement of waste heat of coke oven crude gas retrieving arrangement technique, thereby expand the purposes of raw gas heat recovery.
Accompanying drawing explanation:
Fig. 1 is middle pressure jacketed type coke oven heat exchange upcast structural representation;
Fig. 2 is the I portion enlarged view in Fig. 1.
In figure: 1, upcast cylindrical shell, 2, middle pressure chuck, 3, support draw piece, 4, chuck sealing cone; 5, soft water inlet tube; 6, vapour-liquid two-phase outlet pipe;
Embodiment:
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1, embodiment illustrated in fig. 2 in, a kind of middle pressure jacketed type coke oven heat exchange upcast, structure is divided into two portions, first part is upcast, second section is the middle pressure chuck 2 of upcast outside.Upcast is consistent with existing former coke oven coke oven uprising tube, by upper lower flange and upcast cylindrical shell 1 structure, is integrated.Upcast diameter, height and upper lower flange size for connection and former coke oven coke oven uprising tube are in full accord, and the equipment being connected with upcast can normally be used, without replacing.Between upcast cylindrical shell 1 and middle pressure chuck 2, be provided with numerous support draw pieces 3, its one end and 1 welding of upcast cylindrical shell, the other end and 2 welding of middle pressure chuck, connect into as a whole by middle pressure chuck 2 with upcast.Support draw piece 3 presses square or rhombus is arranged, has formed many little rectangles or rhombus space between middle pressure chuck 2 and upcast cylindrical shell 1.The two ends up and down of middle pressure chuck 2 are designed to respectively pyramidal structure-chuck sealing cone 4, chuck sealing cone 4 one sides and 2 welding of middle pressure chuck, opposite side and upcast cylindrical shell 1 are welded and fixed, make the gap between pressure chuck 2 and upcast cylindrical shell 1 sealed at both ends up and down at upcast, will between middle pressure chuck 2 and upcast, form an enclosed space.Chuck sealing cone 4 is two kinds of fold type or circular arc types.Soft water inlet tube 5 is welded on respectively bottom and the top of middle pressure chuck 2 with vapour-liquid two-phase outlet pipe 6, and is communicated with the gap between middle pressure chuck 2 with upcast cylindrical shell 1.
During upcast work, can press the reactive force of chuck 2 and upcast 1 cylindrical shell to see as the interior pressure medium centering of middle pressure chuck 2 and bear the fixing square plate of uniformly distributed load periphery or diamond plate, the length of side of plate equals the spacing of adjacent two support draw pieces.The requirement of the pressure of pressure chuck 2 interior media to upcast cylindrical shell 1 wall thickness now, only relevant with the spacing of adjacent two support draw pieces 3, and it is irrelevant with upcast diameter, can there is not the failure phenomenon that upcast cylindrical shell 1 causes because of external pressure under the effect of pressure medium, therefore upcast does not press the pressure of chuck 2 medium to cause unstability and carry out external pressure calculating in not needing to consider, thereby has greatly improved the bearing capacity of middle pressure chuck 2 and upcast.
When middle pressure jacketed type coke oven heat exchange upcast is worked in waste heat of coke oven crude gas recovery system, soft water by inlet tube 5 enter upcast 1 and in pressure chuck 2 rectangle or the rhombus space that form, tube wall and coal oven dithio-gas by upcast cylindrical shell 1 carry out thermal exchange, it is cooling that the raw gas of approximately 750 ℃ enters upcast by upcast lower flange mouth, cooled raw gas is discharged by upcast upper flange mouth, and the mixture of the vapour-liquid two-phase that after the heat of soft water absorption raw gas, vaporization produces is that saturation steam and saturation water are discharged from vapour-liquid two-phase outlet pipe 6.Middle pressure jacketed type coke oven heat exchange upcast structure adopts strengthening measure on the whole, has improved the bearing capacity of 2 of the stability of external pressure of upcast cylindrical shell 1 and middle pressure chucks, can in raw gas heat recovery, produce in being greater than 1.6MPa and press steam.
Claims (3)
1. in, press a jacketed type coke oven heat exchange upcast, structure is divided into upcast and middle pressure chuck (2) two portions; Upcast is integrated by upper lower flange and upcast cylindrical shell (1) structure; It is characterized in that:
1), be provided with numerous support draw pieces (3) between upcast cylindrical shell (1) and middle pressure chuck (2), support draw piece (3) firmly connects into an integral body by upcast and middle pressure chuck (2);
2), support draw piece (3) forms many little spaces between upcast cylindrical shell (1) and middle pressure chuck (2).
3), the two ends up and down of middle pressure chuck (2) are designed to respectively pyramidal structure-chuck sealing cone (4); Chuck sealing cone (4) one sides and middle pressure chuck (2) welding, opposite side and upcast cylindrical shell (1) are welded and fixed, make the gap between pressure chuck (2) and upcast cylindrical shell (1) sealed at both ends up and down at upcast, will between middle pressure chuck (2) and upcast, form an enclosed space;
4), soft water inlet tube (5) is welded on respectively bottom and the top of middle pressure chuck (2) with vapour-liquid two-phase outlet pipe (6), and is communicated with the gap between middle pressure chuck (2) with upcast cylindrical shell (1).
2. middle pressure jacketed type coke oven heat exchange upcast according to claim 1, it is characterized in that: described support draw piece (3) is arranged by square or rhombus, between middle pressure chuck (2) and upcast cylindrical shell (1), formed many little rectangles or rhombus space.
3. middle pressure jacketed type coke oven heat exchange upcast according to claim 1, is characterized in that: described chuck sealing cone (4) is fold type or circular arc type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233849.9U CN203820695U (en) | 2014-05-09 | 2014-05-09 | Medium-pressurejacket type coke ovenheat-exchangeriser tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233849.9U CN203820695U (en) | 2014-05-09 | 2014-05-09 | Medium-pressurejacket type coke ovenheat-exchangeriser tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820695U true CN203820695U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420233849.9U Expired - Fee Related CN203820695U (en) | 2014-05-09 | 2014-05-09 | Medium-pressurejacket type coke ovenheat-exchangeriser tube |
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| Country | Link |
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| CN (1) | CN203820695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104774624A (en) * | 2015-03-26 | 2015-07-15 | 常州江南冶金科技有限公司 | Rising pipe base heat exchange apparatus |
-
2014
- 2014-05-09 CN CN201420233849.9U patent/CN203820695U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104774624A (en) * | 2015-03-26 | 2015-07-15 | 常州江南冶金科技有限公司 | Rising pipe base heat exchange apparatus |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Yong Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20180509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |