CN103422704B - Non-rigid crane system of chimney internal cylinder horizontal segment and chimney - Google Patents
Non-rigid crane system of chimney internal cylinder horizontal segment and chimney Download PDFInfo
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- CN103422704B CN103422704B CN201310379815.0A CN201310379815A CN103422704B CN 103422704 B CN103422704 B CN 103422704B CN 201310379815 A CN201310379815 A CN 201310379815A CN 103422704 B CN103422704 B CN 103422704B
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Abstract
The invention provides a kind of non-rigid crane system and chimney of chimney internal cylinder horizontal segment.This system comprises: steel-support ring, and steel-support hoop, in the outside of chimney internal cylinder horizontal segment, is supported chimney internal cylinder horizontal segment and fixes; Non-rigid device for hoisting, for being supported steel-support ring or being suspended in midair; Compact Mounts, for retraining the horizontal shift of steel-support ring.Wherein, non-rigid device for hoisting is connected with steel-support ring with one end of Compact Mounts, and the other end is connected with chimney urceolus.Non-rigid crane system of the present invention can carry the load being applied to chimney internal cylinder horizontal segment, and vertical deformation ability can be provided again to absorb the vertical thermal deformation of the vertical section of chimney internal cylinder.
Description
Technical field
The present invention relates to field of thermal power, be specifically related to the chimney in steam power station.
Background technology
The horizontal segment of conventional suspension formula chimney internal cylinder adopts rigid mount, limits the vertical section distortion of inner core, cannot discharge the thermal walking of chimney internal cylinder, thus can produce sizable thermal stress at inner core, even cause inner core buckling failure.Particularly, chimney internal cylinder is subject to heat smoke temperature action, and can be out of shape because expanding with heat and contract with cold, the vertical displacement amount that this distortion causes accumulates downwards along inner core axis from hitch point, even more to reaching tens of milliseconds during bottom level section.
For eliminating the adverse effect that the vertical thermal deformation of vertical section causes, bottom vertical section, expansion joint can only be set with compatible deformation, but expansion joint price is higher, application life is limited, construction cost and the use and maintenance cost of chimney will be increased, and expansion joint is set impact is furnished with on chimney inside panel, be unfavorable for the optimal design of platform.
For the bearing of chimney horizontal segment, desirable state 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 cannot provide ability of vertical deflection, and sliding support can provide displacement capabilities, but cannot carry vertical load, and this is obviously conflict.
Summary of the invention
The object of this invention is to provide a kind of non-rigid crane system of chimney internal cylinder, it can carry the load being applied to chimney internal cylinder horizontal segment, and vertical deformation ability can be provided again to absorb the vertical thermal deformation of the vertical 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, is provided with the hole for passing for chimney internal cylinder horizontal segment bottom described urceolus, it is characterized in that, described non-rigid crane system comprises:
Steel-support ring, described steel-support hoop, in the outside of described chimney internal cylinder horizontal segment, is supported described chimney internal cylinder horizontal segment and is fixed;
Non-rigid device for hoisting, for being supported described steel-support ring or suspend in midair, enables described steel-support ring carry the vertical load being applied to described chimney internal cylinder horizontal segment, and provides vertical deformation ability to absorb the vertical thermal deformation of the vertical section of chimney internal cylinder;
Compact Mounts, for retraining the horizontal shift of described steel-support ring; Wherein,
Described non-rigid device for hoisting is connected with described steel-support ring with one end of described Compact Mounts, and the other end is connected with chimney urceolus.
Preferably, described chimney internal cylinder horizontal segment is directly fixedly connected with the vertical section of chimney internal cylinder.
Preferably, one 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 the Horizontal limiting parts be 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, one 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 the Horizontal limiting parts be 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 described two locating parts are distributed in the both sides of the central axis of chimney internal cylinder horizontal segment and height is identical with chimney internal cylinder central axis height.
Preferably, described non-rigid device for hoisting and Compact Mounts are made up of single component, and described component has non-rigid and hangs function and Horizontal limiting function.
Preferably, described component forms by spring and with spring all-in-one-piece Horizontal limiting part.
Present invention also offers a kind of for the chimney in steam power station, described chimney comprises chimney urceolus and chimney internal cylinder, described chimney internal cylinder comprises the vertical section of chimney internal cylinder and chimney internal cylinder horizontal segment, described chimney internal cylinder horizontal segment is directly 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, discharge the disadvantageous thermal walking of structure simultaneously, reach and can provide vertical bearing capacity, 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, remarkable in economical benefits, and be almost non-maintaining far below traditional method.Native system adopts welding construction technology, easy for installation, avoids the security against fire hidden danger that on-the-spot welding brings simultaneously.
Accompanying drawing explanation
Fig. 1 illustrates the structural representation of non-rigid crane system of the chimney internal cylinder horizontal segment according to 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 chimney internal cylinder horizontal segment according to the third embodiment of the invention.
Detailed description of the invention
Below with reference to accompanying drawing, preferred embodiment of the present invention is described in detail, 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 the connotation just in order to 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, be made up of inner core and urceolus, and chimney urceolus is supporting construction, and chimney internal cylinder generally adopts steel or polymer composite to make, and is the passage of fume emission.Chimney urceolus is provided with the hole supplying the horizontal segment of chimney internal cylinder to pass.
Non-rigid crane system: be the system that a device for hoisting with certain deformability forms, this system can support chimney internal cylinder loading, there is again certain vertical deformation ability, disadvantageous thermal walking can be discharged, eliminate subsidiary stress, thus avoid inner core to cause stress to gather and buckling failure because of thermal expansion.
Non-rigid crane system of chimney internal cylinder horizontal segment of the present invention is made up 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 chimney internal cylinder horizontal segment while can carrying vertical load, there is provided vertical deflection (distortion) ability to absorb the vertical thermal deformation of the vertical section of chimney internal cylinder, avoid inner core to cause stress to gather and buckling failure because of thermal expansion thus.
Specifically, steel-support ring 1 binds round outside the chimney internal cylinder 4 of thin-walled, is supported and fix chimney internal cylinder 4.This Supporting ring 1 has larger rigidity, plays reinforcement effect on the one hand to chimney internal cylinder 4, on the other hand also for the connection of non-rigid device for hoisting 2 and Compact Mounts 3 provides reliable connected node.The power that the quantity of steel-support ring 1 and concrete size can be born according to the length of chimney internal cylinder horizontal segment and its etc. are because usually determining, the connection of itself and chimney internal cylinder can adopt any suitable method known to persons of ordinary skill in the art to connect, such as, be bolted.
Non-rigid device for hoisting 2, for being supported steel-support ring 1 or suspending in midair, makes steel-support ring vertically have enough bearing capacities, can carry the vertical load (being mainly the gravity of the vertical 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 such as hydraulic pressure, friction (having supporting capacity and deformability), and the setting of its supporting capacity, deformability 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 ability such as wind resistance, antidetonation, and this Compact Mounts allows steel-support ring 1 in vertical displacement, retrains its horizontal cross degree of freedom simultaneously.
Non-rigid device for hoisting can have multiple pattern, Figure 1 shows that suspension, and namely non-rigid device for hoisting 21 one end is fixed on hole 51 roof 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 the Horizontal limiting parts 31 be arranged on hole 51 diapire 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 shape of Horizontal limiting part 31 is the arc consistent with chimney internal cylinder profile.
In another embodiment, as shown in Figure 2, non-rigid lifting is set to pedestal, and namely non-rigid device for hoisting 22 is arranged on the diapire at chimney urceolus hole, and one 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 urceolus jamb, and its setting height(from bottom) is roughly the same with chimney internal cylinder centre-height.
Fig. 3 illustrates the structural representation of non-rigid crane system of chimney internal cylinder horizontal segment according to the third embodiment of the invention.As shown in Figure 3, in the present embodiment, non-rigid device for hoisting and Compact Mounts are realized by single component 6, that is, this component 6 is integrated with non-rigid and hangs function and Horizontal limiting function.Particularly, this component 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 has coordinated vertical load that chimney internal cylinder horizontal segment bears and vertical thermal deformation, traditional rigid mount is replaced with nonrigid device for hoisting, the load of chimney horizontal segment can be carried, vertical thermal deformation can be discharged again.Meanwhile, Compact Mounts constrains the horizontal degree of freedom of steel-support ring, plays the effect of wind resistance, antidetonation, and steel-support ring is given to reinforce to inner tube wall, simultaneously for a device for hoisting and Compact Mounts provide reliable connected node.The system be made up 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, the contradiction conjugated again.
The present invention's non-rigid crane system has plurality of advantages:
(1) native system has supporting and displacement capabilities, can support the load of chimney horizontal segment, discharge the disadvantageous thermal walking of structure simultaneously, reach and can provide vertical bearing capacity, can allow again the perfect condition of vertical deformation.
(2) non-rigid device for hoisting price of native system employing is not high, increases the cost of expansion joint, remarkable in economical benefits far below traditional method.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 2-3 ten thousand yuan, and application life is almost identical with the application life of chimney.
(3) native system adopts welding construction technology, easy for installation, avoids the security against fire hidden danger that on-the-spot welding brings simultaneously.
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.Such as, non-rigid crane system also can not be arranged in the hole place of urceolus, but is arranged in other positions, on such as chimney inside panel.These equivalent form of values fall within the application's appended claims limited range equally.
Claims (9)
1. a non-rigid crane system of chimney internal cylinder horizontal segment, described chimney is provided with chimney internal cylinder and chimney urceolus, and be provided with the hole for passing for chimney internal cylinder horizontal segment bottom described urceolus, it is characterized in that, described non-rigid crane system comprises:
Steel-support ring, described steel-support hoop, in the outside of described chimney internal cylinder horizontal segment, is supported described chimney internal cylinder horizontal segment and is fixed;
Non-rigid device for hoisting, for being supported described steel-support ring or suspend in midair, enables described steel-support ring carry the vertical load being applied to described chimney internal cylinder horizontal segment, and provides vertical deformation ability to absorb the vertical thermal deformation of the vertical section of chimney internal cylinder; And
Compact Mounts, for retraining the horizontal shift of described steel-support ring; Wherein,
Described non-rigid device for hoisting is connected with described steel-support ring with one end of described Compact Mounts, and the other end is connected with chimney urceolus.
2. non-rigid crane system as claimed in claim 1, it is characterized in that, described chimney internal cylinder horizontal segment is directly fixedly connected with the vertical section of chimney internal cylinder.
3. non-rigid crane system as claimed in claim 1, it is characterized in that, one 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 the Horizontal limiting parts be 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, it is characterized in that, one 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 the Horizontal limiting parts be 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 described two locating parts are distributed in the both sides of the central axis of chimney internal cylinder horizontal segment and height is identical with chimney internal cylinder central axis height.
7. non-rigid crane system as claimed in claim 1, it is characterized in that, described non-rigid device for hoisting and Compact Mounts are made up of single component, and described component has non-rigid and hangs function and Horizontal limiting function.
8. non-rigid crane system as claimed in claim 7, it is characterized in that, described component 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 the vertical section of chimney internal cylinder and chimney internal cylinder horizontal segment, it is characterized in that, described chimney internal cylinder horizontal segment is directly fixedly connected with the vertical section of chimney internal cylinder, and described chimney also comprises non-rigid crane system according to any one of claim 1 or 3-8.
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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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| 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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| CN103422704A CN103422704A (en) | 2013-12-04 |
| CN103422704B true CN103422704B (en) | 2015-08-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103993774B (en) * | 2014-05-21 | 2017-01-18 | 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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| JP2006002387A (en) * | 2004-06-16 | 2006-01-05 | Mitsubishi Heavy Ind Ltd | Boiler facility |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2877293B2 (en) * | 1994-08-11 | 1999-03-31 | 三菱重工業株式会社 | Outer tube supported steel chimney |
| CN202559819U (en) * | 2012-05-11 | 2012-11-28 | 中国电力工程顾问集团华东电力设计院 | Chimney |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202627627U (en) * | 2012-06-27 | 2012-12-26 | 河北可耐特玻璃钢有限公司 | Glass reinforced plastic chimney |
| 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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