CN204534526U - A kind of fixing structure being suitable for arranging heating surface and parts in boiler furnace - Google Patents
A kind of fixing structure being suitable for arranging heating surface and parts in boiler furnace Download PDFInfo
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- CN204534526U CN204534526U CN201520198154.6U CN201520198154U CN204534526U CN 204534526 U CN204534526 U CN 204534526U CN 201520198154 U CN201520198154 U CN 201520198154U CN 204534526 U CN204534526 U CN 204534526U
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Abstract
A kind of fixing structure being suitable for arranging heating surface and parts in boiler furnace, the original steel construction of boiler arranges the jumping pipe one of projection, to the original steel construction of boiler be held on the newly-increased heating surface importing and exporting header and jump between pipe one, play a fixing and effect of hanging, or, the original steel construction of boiler arranges the jumping pipe one of projection and jumps pipe two, jump pipe two between the original steel construction of jumping Guan Yiyu boiler, jump Guan Eryu jumping pipe one parallel, newly-increased heating surface is held on and jumps pipe one and jump between pipe two, or be held on simultaneously and jump between pipe one and jumping pipe two and between the original steel construction of boiler and jumping pipe two, play a fixing and effect of hanging, the utility model can be used for transforming boiler, also can be used for new-built unit, newly-increased heating surface can be close to the original steel construction of boiler, also can the original steel construction of Keep away from boiler, the utility model can increase heating surface newly in optional position in boiler furnace, overcome the limitation of existing sus-pension, meet the needs of different situations.
Description
Technical field
The utility model belongs to boiler technology field, particularly a kind of fixing structure being suitable for arranging heating surface and parts in boiler furnace.
Background technology
Fuel chemical energy is the equipment of steam (or water) heat energy as one by boiler, is widely applied in fields such as electric power, chemical industry, heating.At present, coal fired power generation large-sized boiler has been developed to that main steam temperature reaches 620 DEG C, capacity reaches 1000MW grade, reaches international most advanced level.
While newly-built large-sized boiler fast development, existing boiler is optimizing operation parameter, realizes the objects such as energy-saving and cost-reducing, usually needs to transform boiler.Typically, comprising: heating density function, burner reconstruction, soot-blower retrofit, desulphurization denitration are transformed, etc.
Wherein, if boiler heating surface is arranged unreasonable, will affect the boiler parameters such as water temperature, vapor (steam) temperature, exhaust gas temperature, cause the problems such as boiler efficiency decline, the decline of on-load ability, boiler tube bursting, therefore heating density function is very important in boiler improvement.
Typical heating density function mode, comprises and removes former heating surface and newly-increased heating surface.Wherein, when newly-increased heating surface, there is the problem needing to support newly-increased heating surface and fix.
Owing to adopting welding manner, when being welded on original heating surface by newly-increased heating surface, the expansion of two heating surfaces is difficult to completely the same, easily break, therefore newly-increased heating surface generally adopts the mode of suspention to be fixed, namely adopt suspension bracket, newly-increased heating surface is fixed at roof of the furnace or other position that can suspend in midair by suspension bracket.
Suspension bracket generally has following several: 1). rigid hanger: the suspension centre not allowing vertical displacement; 2). spring hanger: for there being a suspension centre of vertical displacement; 3). constant hanger: comparatively large or need the suspension centre of restriction of transfer load for pipeline vertical displacement.
But, when newly-increased heating surface to be positioned in the middle part of burner hearth even bottom, distance furnace roof far, when also not having other place to suspend in midair above newly-increased heating surface, stability, the cooling of suspension bracket are all very difficult simultaneously, now, heating surface is difficult to adopt the mode of suspention to be fixed.Sometimes, boiler furnace top has been arranged has expired suspention heating surface, and not having can for more suitable space of arranging newly-increased suspention heating surface.
In a word, boiler furnace internal heating surface generally all can design arrangement be convenient to suspend in midair position.But inevitably, still there is newly-increased heating surface needs to be arranged in the possibility being difficult to the position of suspending in midair, or can be not enough for the furnace cavity of suspention heating surface, now how to be fixed newly-increased heating surface, the problem that must solve exactly.
In addition, some newly constructed boiler is large due to stove internal heating surface layout quantity, and also exist and can be difficult to the problem of arranging all heating surfaces for the space of suspention heating surface, the technology of this patent proposition still has certain applicability for newly constructed boiler.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of fixing structure being suitable for arranging heating surface and parts in boiler furnace, solves newly-increased heating surface or the fixation problem of other furnace interior part when being difficult to employing suspention.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of fixing structure being suitable for arranging heating surface and parts in boiler furnace, the original steel construction 1 of boiler arranges the jumping pipe 1 of projection, be held on the original steel construction 1 of boiler with the newly-increased heating surface 2 importing and exporting header 3 and jump between pipe 1, thus being close to the original steel construction 1 of boiler.
The original steel construction of described boiler 1 is made up of multiple parallel boiler tube 6, described jumping pipe 1 is the meander line structure connected into by three sections of tubing, form the shape of an isosceles trapezoid of not going to the bottom, excise the mid portion of a wherein boiler tube 6, leave two ends remainder, the two ends of jumping pipe 1 are connected on remainder, the middle tubing of jumping pipe 1 is parallel with boiler tube 6, the two place plane and each boiler tube 6 place plane orthogonal, cooling medium is had in described jumping pipe 1 and boiler tube 6, newly-increased heating surface 2 is straight tube, U-tube, hosepipe or tube panel structure, boiler tube trend in newly-increased heating surface 2 vertically also can have certain angle with the trend of boiler tube 6.
The original steel construction of described boiler 1 is adiabatic steel plate, and described jumping pipe 1 is bending steel plate, and the two ends bending steel plate are connected respectively with adiabatic steel plate two ends, and the centre of bending steel plate is parallel with adiabatic steel plate; Or described jumping pipe 1 is bending pole, and the two ends bending pole are connected respectively with adiabatic steel plate two ends, and the centre of bending pole is parallel with adiabatic steel plate.
Described jumping pipe 1 is arranged at a certain distance along the length trend of newly-increased heating surface 2, and such as 0.5 ~ 10 meter arranges one, makes newly-increased heating surface 2 stably support and to be fixed in burner hearth.
Be provided with steel plate 1 between the original steel construction 1 of described boiler and jumping pipe 1 and be welded in one, be provided with the hole larger than the boiler tube size of newly-increased heating surface 2 in steel plate 1 for placing the boiler tube of newly-increased heating surface 2 and not welding, enable this boiler tube free wxpansion.
Described jumping pipe 1 is equipped with not heat-absorbing material 9, such as castable, to reduce the caloric receptivity of jumping pipe 1, makes the heat absorption of the original steel construction of boiler 1 even.
Further, the jumping pipe 28 of projection can be added on the original steel construction 1 of boiler, jump pipe 28 between jumping pipe 1 and the original steel construction 1 of boiler, parallel with jumping pipe 1, newly-increased heating surface 2 is held on jumps pipe 1 and jumps between pipe 28, thus the original steel construction 1 of Keep away from boiler.Or be held on simultaneously and jump between pipe 1 and jumping pipe 28 and between the original steel construction 1 of boiler and jumping pipe 28.
The structure of described jumping pipe 28 is consistent with jumping pipe 1, jump in pipe 28 and have cooling medium, outer paving is heat-absorbing material 9 not, jump pipe 28 and jump between pipe 1 and steel plate 1 is set, be provided with the hole larger than the boiler tube size of newly-increased heating surface 2 in steel plate 1 for placing the boiler tube of newly-increased heating surface 2 and not welding, enable this boiler tube free wxpansion; Jump between pipe 28 and the original steel construction 1 of boiler and be provided with steel plate 27.
The utility model can be used for transforming boiler, also can be used for new-built unit.Adopt this fixing structure, in boiler furnace, heating surface can be increased newly in optional position, overcome the limitation of existing sus-pension, meet the needs of different situations.When newly-increased heating surface can block the original steel construction of boiler, newly-increased heating surface can be close to the original steel construction of boiler, and now newly-increased heating surface has better stability.When newly-increased heating surface cannot block the original steel construction of boiler, newly-increased heating surface can the original steel construction of Keep away from boiler, thus significantly reduces the impact on the original steel construction caloric receptivity of boiler etc.
Compared with prior art, outstanding advantages of the present utility model is:
1. by the original steel construction of boiler near newly-increased heating surface newly-increased heating surface supported and fix, the needs of different situations can be met, be particularly useful for newly-increased heating surface and be positioned in the middle part of burner hearth even bottom, heating surface is difficult to the situation adopting the mode of suspention to be fixed.
2. the boiler tube of newly-increased heating surface is placed in the hole of the steel plate of fixing welding, boring ratio boiler tube is large, does not weld, enables boiler tube free wxpansion, when can effectively prevent newly-increased heating surface to be welded and fixed, owing to ftractureing with the original steel construction of boiler inconsistent causing of expanding.
3. the rising height of jumping pipe can design according to actual needs, makes newly-increased heating surface both can be close to the original steel construction of boiler, also in the middle part of burner hearth, can meet the needs of different situations.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one, and newly-increased heating surface is close to the original steel construction of boiler and is arranged.
Fig. 2 is AA direction view in Fig. 1.
Fig. 3 is BB direction view in Fig. 1.
Fig. 4 is the structural representation of the utility model embodiment two, and the original steel construction of newly-increased heating surface Keep away from boiler is arranged.
Fig. 5 is A ＇ A ＇ direction view in Fig. 4.
Fig. 6 is B ＇ B ＇ direction view in Fig. 4.
Detailed description of the invention
Embodiment of the present utility model is described in detail below in conjunction with drawings and Examples.
Embodiment one:
As shown in Figure 1, Figure 2 and Figure 3, the present embodiment is a kind of is suitable for the fixing structure arranging heating surface and parts in boiler furnace, the original steel construction 1 of boiler is boiler tube structure, be made up of multiple boiler tube 6, need newly-increased heating surface 2 and import and export header 3, as calculated, the caloric receptivity of the original steel construction of boiler 1 has certain surplus, newly-increased heating surface 2 is U-tube simultaneously, area is less, newly-increased heating surface 2 is close to boiler original steel construction 1 when arranging, the caloric receptivity of the original steel construction 1 of boiler still can meet the demands.
Therefore, by being transformed by the boiler tube 6 in original for boiler steel construction 1, the jumping pipe 1 of projection being set, newly-increased heating surface 2 being clamped in and jumping between pipe 1 and boiler tube 6, being close to the original steel construction 1 of boiler.Wherein, jumping pipe 1 is the meander line structure connected into by three sections of tubing, forms the shape of an isosceles trapezoid of not going to the bottom, and excises the mid portion of a wherein boiler tube 6, leaves two ends remainder, is connected on remainder at the two ends of jumping pipe 1.
For increasing stability, jump between pipe 1 and original boiler tube 6 and be provided with steel plate 1, and be fixed by welding, jumping pipe 1 is vertical with boiler original steel construction 1 with the plane at original boiler tube 6 place.In steel plate 1, be provided with the hole larger than the boiler tube size of newly-increased heating surface 2, the boiler tube of newly-increased heating surface 2 placed wherein, does not weld, enable boiler tube free wxpansion.
This fixing structure be made up of jumping pipe 1, steel plate 1 etc., along newly-increased heating surface 2, arranges 1 by every 3 ~ 4 meters, makes newly-increased heating surface 2 stably support and to be fixed in burner hearth.
Embodiment two
As shown in Figure 4, Figure 5 and Figure 6, the present embodiment is a kind of is suitable for the fixing structure arranging heating surface and parts in boiler furnace, the original steel construction 1 of boiler is boiler tube structure, need newly-increased heating surface 2 and import and export header 3, as calculated, the caloric receptivity surplus of the original steel construction of boiler 1 is less, newly-increased heating surface 2 is hosepipe simultaneously, area is larger, newly-increased heating surface 2 is close to boiler original steel construction 1 when arranging, the caloric receptivity of the original steel construction 1 of boiler can not meet the demands, and newly-increased heating surface 2 needs the original steel construction 1 of Keep away from boiler to arrange.
Therefore, by being transformed by the boiler tube in original for boiler steel construction 1, arranging the jumping pipe 1 of projection and jumping pipe 28, be clamped in by newly-increased heating surface 2 and jump pipe 1 and jump between pipe 28, the original steel construction 1 of Keep away from boiler, distance is 2 meters.
For increasing stability, jump pipe 1 and jump between pipe 28 and be provided with steel plate 1, jump between pipe 28 and original boiler tube 6 and be provided with steel plate 27, and fixed by welding, jump pipe 1 and jumping pipe 28 and original boiler tube 6 in same plane, and vertical with boiler original steel construction 1.In steel plate 1, be provided with the hole larger than the boiler tube size of newly-increased heating surface 2, the boiler tube of newly-increased heating surface 2 placed wherein, does not weld, enable boiler tube free wxpansion, thus realize well fixing newly-increased heating surface.
Rise appreciably than original boiler tube 6 with jumping pipe 28 owing to jumping pipe 1, caloric receptivity obviously increases, therefore on jumping pipe 1 and jumping pipe 28, suitably lay not heat-absorbing material 9 (employing castable), jump pipe 1 and the caloric receptivity of jumping pipe 28 to reduce, make the heat absorption between each boiler tube of the original steel construction of boiler 1 even.
This fixing structure be made up of jumping pipe 1, jumping pipe 28, steel plate 1 and steel plate 27 etc., along newly-increased heating surface 2, arranges 1 by every 2 ~ 3 meters, makes newly-increased heating surface 2 stably fix in burner hearth.
Claims (9)
1. one kind is suitable for the fixing structure arranging heating surface and parts in boiler furnace, it is characterized in that, the original steel construction of boiler (1) arranges the jumping pipe one (5) of projection, is held on the original steel construction of boiler (1) with the newly-increased heating surface (2) importing and exporting header (3) and jumps between pipe one (5).
2. be suitable for the fixing structure arranging heating surface and parts in boiler furnace according to claim 1, it is characterized in that, the original steel construction of described boiler (1) is made up of multiple parallel boiler tube (6), described jumping pipe one (5) is the meander line structure connected into by three sections of tubing, form the shape of an isosceles trapezoid of not going to the bottom, excise the mid portion of a wherein boiler tube (6), leave two ends remainder, the two ends of jumping pipe one (5) are connected on remainder, the middle tubing of jumping pipe one (5) is parallel with boiler tube (6), the two place plane and each boiler tube (6) place plane orthogonal, cooling medium is had in described jumping pipe one (5) and boiler tube (6), newly-increased heating surface (2) is straight tube, U-tube, hosepipe or tube panel structure.
3. be suitable for the fixing structure arranging heating surface and parts in boiler furnace according to claim 1, it is characterized in that, the original steel construction of described boiler (1) is adiabatic steel plate, described jumping pipe one (5) is bending steel plate, the two ends of bending steel plate are connected respectively with adiabatic steel plate two ends, and the centre of bending steel plate is parallel with adiabatic steel plate; Or described jumping pipe one (5) is bending pole, and the two ends bending pole are connected respectively with adiabatic steel plate two ends, and the centre of bending pole is parallel with adiabatic steel plate.
4. be suitable for the fixing structure arranging heating surface and parts in boiler furnace according to claim 1, it is characterized in that, described jumping pipe one (5) is arranged at a certain distance along the length trend of newly-increased heating surface (2).
5. according to claim 1 or 4, be suitable for the fixing structure arranging heating surface and parts in boiler furnace, it is characterized in that, steel plate one (4) is provided with between the original steel construction of described boiler (1) and jumping pipe one (5), be provided with the hole larger than the boiler tube size of newly-increased heating surface (2) in steel plate one (4) for placing the boiler tube of newly-increased heating surface (2) and not welding, enable this boiler tube free wxpansion.
6. be suitable for the fixing structure arranging heating surface and parts in boiler furnace according to claim 1, it is characterized in that, described jumping pipe one (5) is equipped with not heat-absorbing material (9).
7. be suitable for the fixing structure arranging heating surface and parts in boiler furnace according to claim 6, it is characterized in that, described not heat-absorbing material (9) is castable.
8. be suitable for the fixing structure arranging heating surface and parts in boiler furnace according to claim 1, it is characterized in that, the original steel construction of boiler (1) also arranges bossed jumping pipe two (8), jumping pipe two (8) is positioned between jumping pipe one (5) and the original steel construction of boiler (1), jump pipe two (8) parallel with jumping pipe one (5), newly-increased heating surface (2) is held on jumps pipe one (5) and jumps between pipe two (8), or be held on simultaneously and jump between pipe one (5) and jumping pipe two (8) and between the original steel construction of boiler (1) and jumping pipe two (8).
9. be suitable for the fixing structure arranging heating surface and parts in boiler furnace according to claim 8, it is characterized in that, the structure of described jumping pipe two (8) is consistent with jumping pipe one (5), jump in pipe two (8) and have cooling medium, outer paving is heat-absorbing material (9) not, jump pipe two (8) and jump between pipe one (5) and steel plate one (4) is set, be provided with the hole larger than the boiler tube size of newly-increased heating surface (2) in steel plate one (4) for placing the boiler tube of newly-increased heating surface (2) and not welding, enable this boiler tube free wxpansion; Jump between pipe two (8) and the original steel construction of boiler (1) and be provided with steel plate two (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520198154.6U CN204534526U (en) | 2015-04-03 | 2015-04-03 | A kind of fixing structure being suitable for arranging heating surface and parts in boiler furnace |
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| CN201520198154.6U CN204534526U (en) | 2015-04-03 | 2015-04-03 | A kind of fixing structure being suitable for arranging heating surface and parts in boiler furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806996A (en) * | 2015-04-03 | 2015-07-29 | 中国华能集团清洁能源技术研究院有限公司 | Supporting structure and method for configuring heating surfaces and parts in boiler furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806996A (en) * | 2015-04-03 | 2015-07-29 | 中国华能集团清洁能源技术研究院有限公司 | Supporting structure and method for configuring heating surfaces and parts in boiler furnace |
| CN104806996B (en) * | 2015-04-03 | 2017-01-11 | 中国华能集团清洁能源技术研究院有限公司 | Supporting structure and method for configuring heating surfaces and parts in boiler furnace |
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