CN103422704A - Non-rigid supporting suspension system in horizontal segment of chimney inner barrel and chimney - Google Patents
Non-rigid supporting suspension system in horizontal segment of chimney inner barrel and chimney Download PDFInfo
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- CN103422704A CN103422704A CN2013103798150A CN201310379815A CN103422704A CN 103422704 A CN103422704 A CN 103422704A CN 2013103798150 A CN2013103798150 A CN 2013103798150A CN 201310379815 A CN201310379815 A CN 201310379815A CN 103422704 A CN103422704 A CN 103422704A
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Abstract
The invention provides a non-rigid supporting suspension system in a horizontal segment of a chimney inner barrel and a chimney. The system comprises a steel supporting ring, a non-rigid supporting suspension device and a horizontal limiting device, wherein the steel supporting ring is hooped the outside of the horizontal segment of the chimney inner barrel for supporting and fixing the horizontal segment of the chimney inner barrel; the non-rigid supporting suspension device is used for supporting or suspending the steel supporting ring; and the horizontal limiting device is used for restricting horizontal displacement of the steel supporting ring, wherein one end of the non-rigid supporting suspension device and one end of the horizontal limiting device are connected with the steel supporting ring, and the other ends are connected with the chimney inner barrel. The non-rigid supporting suspension system provided by the invention can bear load applied to the horizontal segment of the chimney inner barrel, and also can provide vertical deformation capacity so as to absorb vertical thermal deformation of a vertical segment of the chimney inner barrel.
Description
Technical field
The present invention relates to the thermal power generation field, be specifically related to the chimney in steam power station.
Background technology
The horizontal segment of tradition suspension type chimney internal cylinder adopts rigid mount, has limited vertical section distortion of inner core, can't discharge the thermal walking of chimney internal cylinder, thereby can produce sizable thermal stress at inner core, even causes the inner core buckling failure.Particularly, chimney internal cylinder is subject to hot flue-gas temperature effect, can be out of shape because expanding with heat and contract with cold, and the vertical displacement amount that this distortion causes accumulates downwards from hitch point along the inner core axis, reaches tens of millimeters during to the bottom level section even more.
The adverse effect caused for eliminating vertical section vertical thermal deformation, can only expansion joint be set with compatible deformation in vertical section bottom, but the expansion joint price is higher, application life is limited, will increase construction cost and the use and maintenance cost of chimney, and the be furnished with impact of expansion joint on the chimney inside panel is set, be unfavorable for the optimal design of platform.
For the bearing of chimney horizontal segment, desirable state is to carry vertical load, can allow vertical deflection again.General bearing has rigid mount and sliding support, and rigid mount can carry vertical load, but ability of vertical deflection can't be provided, and sliding support can provide displacement capabilities, but can't carry vertical load, and this is obviously conflict.
Summary of the invention
The purpose of this invention is to provide a kind of non-rigid crane system of chimney internal cylinder, it can carry the load that is applied to the chimney internal cylinder horizontal segment, can provide again the vertical deformation ability to absorb the vertically vertical thermal deformation of section of chimney internal cylinder.
For achieving the above object, the invention provides a kind of non-rigid crane system of chimney internal cylinder horizontal segment, described chimney is provided with chimney internal cylinder and chimney urceolus, and described urceolus bottom is provided with the hole for passing for the chimney internal cylinder horizontal segment, it is characterized in that, described non-rigid crane system comprises:
The steel-support ring, described steel-support hoop, in the outside of described chimney internal cylinder horizontal segment, is supported and is fixed described chimney internal cylinder horizontal segment;
Non-rigid device for hoisting, for described steel-support ring is supported or suspends in midair, make described steel-support ring can carry the vertical load that is applied to described chimney internal cylinder horizontal segment, and provide the vertical deformation ability to absorb the vertically vertical thermal deformation of section of chimney internal cylinder;
Compact Mounts, for retraining the horizontal shift of described steel-support ring; Wherein,
One end of described non-rigid device for hoisting and described Compact Mounts is connected with described steel-support ring, and the other end is connected with the chimney urceolus.
Preferably, described chimney internal cylinder horizontal segment directly is fixedly connected with the vertical section of chimney internal cylinder.
Preferably, an end of described non-rigid device for hoisting is fixed on the hole roof of chimney urceolus, and the other end is fixed on described steel-support ring; Described Compact Mounts is two Horizontal limiting parts that are arranged on the hole diapire of chimney urceolus.
Preferably, described non-rigid lifting is set to spring, and described number of springs is two and is distributed in the both sides of the central axis of chimney internal cylinder horizontal segment, and described two locating parts are distributed in the both sides of the central axis of chimney internal cylinder horizontal segment.
Preferably, an end of described non-rigid device for hoisting is fixed on the hole diapire of chimney urceolus, and the other end is fixed on described steel-support ring; Described Compact Mounts is two Horizontal limiting parts that are arranged on the jamb of chimney urceolus.
Preferably, described non-rigid lifting is set to spring, described number of springs is two and is distributed in the both sides of the central axis of chimney internal cylinder horizontal segment, and both sides and the height of central axis that described two locating parts are distributed in the chimney internal cylinder horizontal segment is identical with chimney internal cylinder central axis height.
Preferably, described non-rigid device for hoisting and Compact Mounts consist of single member, and described member has non-rigid and hangs function and Horizontal limiting function.
Preferably, described member forms by spring and with spring all-in-one-piece Horizontal limiting part.
The present invention also provides a kind of chimney for steam power station, described chimney comprises chimney urceolus and chimney internal cylinder, described chimney internal cylinder comprises chimney internal cylinder vertically section and chimney internal cylinder horizontal segment, described chimney internal cylinder horizontal segment directly is fixedly connected with the vertical section of chimney internal cylinder, and described chimney also comprises non-rigid crane system recited above.
Non-rigid crane system of chimney internal cylinder of the present invention has supporting and displacement capabilities, can support the load of chimney horizontal segment, discharges the disadvantageous thermal walking of structure simultaneously, reaches vertical bearing capacity can be provided, and can allow again the perfect condition of vertical deformation.Non-rigid the device for hoisting price that native system adopts is not high, increases the cost of expansion joint far below traditional method, remarkable in economical benefits, and be almost non-maintaining.Native system adopts the welding construction technology, easy for installation, the security against fire hidden danger of simultaneously avoiding on-the-spot welding to bring.
The accompanying drawing explanation
Fig. 1 illustrates the structural representation according to non-rigid crane system of the chimney internal cylinder horizontal segment of the first embodiment of the present invention.
Fig. 2 illustrates the structural representation of non-rigid crane system of chimney internal cylinder horizontal segment according to a second embodiment of the present invention.
Fig. 3 illustrates the structural representation of non-rigid crane system of the chimney internal cylinder horizontal segment of a third embodiment in accordance with the invention.
The specific embodiment
Below with reference to accompanying drawing, preferred embodiment of the present invention is elaborated, so that clearer understanding objects, features and advantages of the present invention.It should be understood that embodiment shown in the drawings is not limitation of the scope of the invention, and just for the connotation of technical solution of the present invention is described.
Explanation of technical terms
Chimney internal cylinder and chimney urceolus: thermal power plant's chimney generally adopts sleeve-type chimney, inner core and urceolus, consists of, and the chimney urceolus is supporting construction, and chimney internal cylinder generally adopts steel or polymer composite to make, and is the passage of fume emission.The chimney urceolus is provided with the hole that the horizontal segment for chimney internal cylinder passes.
Non-rigid crane system: be the system that device for hoisting forms of propping up with certain deformability, this system can support the chimney internal cylinder loading, there is again certain vertical deformation ability, disadvantageous thermal walking can be discharged, eliminate subsidiary stress, thereby avoid inner core to gather buckling failure because thermal expansion causes stress.
Non-rigid crane system of chimney internal cylinder horizontal segment of the present invention is comprised of steel-support ring 1, non-rigid device for hoisting 2 and Compact Mounts 3, wherein, non-rigid device for hoisting 2 is core apparatus of native system, it makes the chimney internal cylinder horizontal segment when can carrying vertical load, provide vertical deflection (distortion) ability to absorb the vertically vertical thermal deformation of section of chimney internal cylinder, avoid thus inner core to gather buckling failure because thermal expansion causes stress.
Specifically, steel-support ring 1 hoop, in chimney internal cylinder 4 outsides of thin-walled, is supported and is fixed chimney internal cylinder 4.This Supporting ring 1 has larger rigidity, on the one hand chimney internal cylinder 4 is played to reinforcement effect, also for the connection of non-rigid device for hoisting 2 and Compact Mounts 3, provides reliable connected node on the other hand.The quantity of steel-support ring 1 and concrete size can according to the length of chimney internal cylinder horizontal segment with and the factors such as power of being born determine, it connects with adopting any suitable method known to persons of ordinary skill in the art being connected of chimney internal cylinder, for example is bolted.
Non-rigid device for hoisting 2, for steel-support ring 1 is supported or suspends in midair, makes the steel-support ring vertically have enough bearing capacities, can carry the vertical load (being mainly the vertically gravity of section of chimney) of chimney internal cylinder horizontal segment.This non-rigid device for hoisting 2 can adopt spring principle, also can adopt other principles (having supporting capacity and deformability) such as hydraulic pressure, friction, and its supporting capacity, deformability are set and all should be determined according to the thermodynamics calculation results of inner core.Specifically, according to installation site, non-rigid device for hoisting 2 can be spring or hydraulic part.
Compact Mounts 3, for retraining the horizontal shift of steel-support ring 1, makes this non-rigid crane system have the abilities such as wind resistance, antidetonation, and this Compact Mounts permission steel-support ring 1 retrains its horizontal cross degree of freedom in vertical displacement simultaneously.
Non-rigid device for hoisting can have multiple pattern, Figure 1 shows that suspension, and non-rigid device for hoisting 21 1 ends are fixed on hole 51 roofs of chimney urceolus 5, and the other end is fixed on steel-support ring 1.Preferably, non-rigid device for hoisting 21 is spring.Spring one end is fixed on the roof of chimney urceolus, and the other end is connected to steel-support ring 1.Preferably, each steel-support ring 1 correspondence arranges two non-rigid device for hoisting 21, and it is distributed in the both sides of the central axis 41 of chimney internal cylinder horizontal segment (or flue).Correspondingly, Compact Mounts is two Horizontal limiting parts 31 that are arranged on hole 51 diapires of chimney urceolus 5, and preferably, Horizontal limiting part 31 is arranged in the central axis 41(flue central axis of chimney internal cylinder horizontal segment) both sides.The upper surface of Horizontal limiting part 31 is shaped as the arc consistent with the chimney internal cylinder profile.
In another embodiment, as shown in Figure 2, non-rigid lifting is set to pedestal, and non-rigid device for hoisting 22 is arranged on the diapire at chimney urceolus hole, and an end is fixed on the diapire of urceolus hole, and the other end is fixed on steel-support ring 1.Preferably, each steel-support ring 1 correspondence arranges two non-rigid device for hoisting 22, and it is distributed in the both sides of flue central axis 41.Correspondingly, Compact Mounts is the Horizontal limiting part 32 be installed on the urceolus jamb, and its setting height(from bottom) and chimney internal cylinder centre-height are roughly the same.
Fig. 3 illustrates the structural representation of non-rigid crane system of the chimney internal cylinder horizontal segment of a third embodiment in accordance with the invention.As shown in Figure 3, in the present embodiment, non-rigid device for hoisting and Compact Mounts realized by single member 6, that is, this member 6 is integrated non-rigid hang function and Horizontal limiting function.Particularly, this member 6 can form by spring and with spring all-in-one-piece Horizontal limiting part.Its concrete structure can design according to practical situation.
Certainly, in Practical Project, non-rigid crane system can also adopt other patterns as the case may be, as long as it allows chimney internal cylinder horizontal segment vertical deflection.
Non-rigid crane system of chimney internal cylinder horizontal segment of the present invention coordinated vertical load and vertical thermal deformation that the chimney internal cylinder horizontal segment bears, replace traditional rigid mount with nonrigid device for hoisting, can carry the load of chimney horizontal segment, vertical thermal deformation can be discharged again.Simultaneously, Compact Mounts has retrained the horizontal degree of freedom of steel-support ring, plays the effect of wind resistance, antidetonation, and the steel-support ring is given to reinforce to inner tube wall, provides reliable connected node for propping up device for hoisting and Compact Mounts simultaneously.The system be comprised of non-rigid device for hoisting, Compact Mounts and steel-support ring plays the double action of supporting load and compatible deformation, and the perfect horizontal segment bearing that solves should support, again the contradiction of displacement.
Non-rigid crane system of the present invention has plurality of advantages:
(1) native system has supporting and displacement capabilities, can support the load of chimney horizontal segment, discharges the disadvantageous thermal walking of structure simultaneously, reaches vertical bearing capacity can be provided, and can allow again the perfect condition of vertical deformation.
(2) non-rigid the device for hoisting price that native system adopts is not high, increases the cost of expansion joint far below traditional method, remarkable in economical benefits.Particularly, current most of expansion joint price be 30-50 ten thousand/, be generally 5 years application life, and non-rigid crane system cost of the present invention is only ten thousand yuan of 2-3, and application life is almost identical with the application life of chimney.
(3) native system adopts the welding construction technology, easy for installation, the security against fire hidden danger of simultaneously avoiding on-the-spot welding to bring.
Below described preferred embodiment of the present invention in detail, but it will be appreciated that, after having read above-mentioned instruction content of the present invention, those skilled in the art can make various changes or modifications the present invention.For example, non-rigid crane system also can not be arranged in the place, hole of urceolus, but is arranged in other positions, on the chimney inside panel.These equivalent form of values fall within the application's appended claims limited range equally.
Claims (9)
1. non-rigid crane system of a chimney internal cylinder horizontal segment, described chimney is provided with chimney internal cylinder and chimney urceolus, and described urceolus bottom is provided with the hole for passing for the chimney internal cylinder horizontal segment, it is characterized in that, and described non-rigid crane system comprises:
The steel-support ring, described steel-support hoop, in the outside of described chimney internal cylinder horizontal segment, is supported and is fixed described chimney internal cylinder horizontal segment;
Non-rigid device for hoisting, for described steel-support ring is supported or suspends in midair, make described steel-support ring can carry the vertical load that is applied to described chimney internal cylinder horizontal segment, and provide the vertical deformation ability to absorb the vertically vertical thermal deformation of section of chimney internal cylinder; And
Compact Mounts, for retraining the horizontal shift of described steel-support ring; Wherein,
One end of described non-rigid device for hoisting and described Compact Mounts is connected with described steel-support ring, and the other end is connected with the chimney urceolus.
2. non-rigid crane system as claimed in claim 1, is characterized in that, described chimney internal cylinder horizontal segment directly is fixedly connected with the vertical section of chimney internal cylinder.
3. non-rigid crane system as claimed in claim 1, is characterized in that, an end of described non-rigid device for hoisting is fixed on the hole roof of chimney urceolus, and the other end is fixed on described steel-support ring; Described Compact Mounts is two Horizontal limiting parts that are arranged on the hole diapire of chimney urceolus.
4. non-rigid crane system as claimed in claim 3, it is characterized in that, described non-rigid lifting is set to spring, and described number of springs is two and is distributed in the both sides of the central axis of chimney internal cylinder horizontal segment, and described two locating parts are distributed in the both sides of the central axis of chimney internal cylinder horizontal segment.
5. non-rigid crane system as claimed in claim 1, is characterized in that, an end of described non-rigid device for hoisting is fixed on the hole diapire of chimney urceolus, and the other end is fixed on described steel-support ring; Described Compact Mounts is two Horizontal limiting parts that are arranged on the jamb of chimney urceolus.
6. non-rigid crane system as claimed in claim 5, it is characterized in that, described non-rigid lifting is set to spring, described number of springs is two and is distributed in the both sides of the central axis of chimney internal cylinder horizontal segment, and both sides and the height of central axis that described two locating parts are distributed in the chimney internal cylinder horizontal segment is identical with chimney internal cylinder central axis height.
7. non-rigid crane system as claimed in claim 1, is characterized in that, described non-rigid device for hoisting and Compact Mounts consist of single member, and described member has non-rigid and hangs function and Horizontal limiting function.
8. non-rigid crane system as claimed in claim 7, is characterized in that, described member forms by spring and with spring all-in-one-piece Horizontal limiting part.
9. a chimney, for steam power station, described chimney comprises chimney urceolus and chimney internal cylinder, described chimney internal cylinder comprises chimney internal cylinder vertically section and chimney internal cylinder horizontal segment, it is characterized in that, described chimney internal cylinder horizontal segment directly is fixedly connected with the vertical section of chimney internal cylinder, and described chimney also comprises described non-rigid the crane system of any one in claim 1-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310379815.0A CN103422704B (en) | 2013-08-27 | 2013-08-27 | Non-rigid crane system of chimney internal cylinder horizontal segment and chimney |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310379815.0A CN103422704B (en) | 2013-08-27 | 2013-08-27 | Non-rigid crane system of chimney internal cylinder horizontal segment and chimney |
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| CN103422704B CN103422704B (en) | 2015-08-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993774A (en) * | 2014-05-21 | 2014-08-20 | 苏州云白环境设备制造有限公司 | Inner and outer barrel self-erected self-adaptive shake resistance steel chimney |
| CN106245978A (en) * | 2016-08-29 | 2016-12-21 | 江苏利保科技股份有限公司 | A kind of fiber glass reinforced plastic chimney hoop bridle iron |
| CN106812371A (en) * | 2017-03-17 | 2017-06-09 | 盐城三美防腐科技有限公司 | A kind of chimney glass reinforced plastic inner cylinder attachment means |
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| JPH0853955A (en) * | 1994-08-11 | 1996-02-27 | Mitsubishi Heavy Ind Ltd | Outer cylinder support shape steel chimney |
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| CN103075033A (en) * | 2013-02-22 | 2013-05-01 | 中国电力工程顾问集团东北电力设计院 | Rubber seat supported steel coal bucket system |
| CN203412355U (en) * | 2013-08-27 | 2014-01-29 | 中国电力工程顾问集团华东电力设计院 | Nonrigid supporting/suspending system on horizontal segment in chimney and chimney |
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2013
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Patent Citations (7)
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| JPH0853955A (en) * | 1994-08-11 | 1996-02-27 | Mitsubishi Heavy Ind Ltd | Outer cylinder support shape steel chimney |
| JP2006002387A (en) * | 2004-06-16 | 2006-01-05 | Mitsubishi Heavy Ind Ltd | Boiler facility |
| CN101532671A (en) * | 2008-03-14 | 2009-09-16 | 同方环境股份有限公司 | Flue axial rail-mounted support structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993774A (en) * | 2014-05-21 | 2014-08-20 | 苏州云白环境设备制造有限公司 | Inner and outer barrel self-erected self-adaptive shake resistance steel chimney |
| CN106245978A (en) * | 2016-08-29 | 2016-12-21 | 江苏利保科技股份有限公司 | A kind of fiber glass reinforced plastic chimney hoop bridle iron |
| CN106812371A (en) * | 2017-03-17 | 2017-06-09 | 盐城三美防腐科技有限公司 | A kind of chimney glass reinforced plastic inner cylinder attachment means |
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| CN103422704B (en) | 2015-08-19 |
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