CN204201864U - A kind of four main tubes of boiler shoe - Google Patents
A kind of four main tubes of boiler shoe Download PDFInfo
- Publication number
- CN204201864U CN204201864U CN201420648644.7U CN201420648644U CN204201864U CN 204201864 U CN204201864 U CN 204201864U CN 201420648644 U CN201420648644 U CN 201420648644U CN 204201864 U CN204201864 U CN 204201864U
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- trombone slide
- hanging
- baffle
- abrasion resistant
- resistant box
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Abstract
The utility model provides a kind of four main tubes of boiler shoe, comprise the pipe row that superheater tube that is parallel by many and longitudinal separation arrangement is formed, and pass perpendicularly through space between adjacent superheater tube hang trombone slide, hang to be separately installed with between trombone slide and adjacent each superheater tube and limit and fix the fixing fixture block of position between the two, the axial arranged abrasion resistant box prolonging and hang trombone slide is installed installing in the space of hanging trombone slide; Abrasion resistant box comprises the first baffle plate fitted with the outer surface hanging trombone slide, and along the axial two side ends second baffle that extends of Vertical dimension and the first baffle plate and the binding face rightabout hanging trombone slide and the third gear plate respectively of the first baffle plate; Wherein, the second baffle of the abrasion resistant box after installation contacts with the heat pipe hanging adjacent two of trombone slide respectively with third gear plate.This apparatus design is simple, and cost is low, easy for installation, and effect is good; Both the unfailing performance that heat pipe wearing and tearing also improve boiler heating surface pipeline simultaneously had effectively been solved.
Description
Technical field
The utility model relates to power plant boiler field, and particularly relate to one and can be applicable to the pipe rankings such as boiler back end ductwork low temperature superheater, economizer, reheater and put narrow space, conventional anti-grinding process is difficult to the shoe of processing region.
Background technology
In prior art, the back-end ductwork low temperature superheater region of power plant boiler is after operation a period of time, and pipe row there will be large-area wear phenomenon with the inside tube of hanging trombone slide and fix the root place of fixture block.Cause the reason of this phenomenon mainly flue gas prolong pipe row between passage from top to bottom flow, flowing pipe row strap bight time and rear portion flue gas mutually disturb generation eddy current, finally cause inside tube surface abrasion.Separately often organizing pipe row bottom, also forming eddy current because mutually disturbing by soot blower purging and flue gas, making pipe arrange the every root pipe in bottom and also creating wearing and tearing near clamping plate place in inner side from bottom to top.If do not blow ash to this region, heating surface superficial dust can be caused serious, affect heating surface heat exchange efficiency.
The processing method being generally routine to the abrasionproof process of four main tubes of boiler in prior art mainly contains repair welding, adds wearing-resistant tile and abrasionproof spraying.As shown in Figure 1, for superheater, pipe trestle column is generally 86-92mm, depth 1254-2622mm, adopts conventional eroded area repair welding, when installing common anti-friction protecting iron process additional, cannot carry out by space constraint.And due to pipe row eroded area be pipe row by hanging direction inside trombone slide, and prolong vertical direction and expand to depth, adopt abrasionproof spraying coating process also due to space constraint, make spray gun cannot reach its degree of depth, and rifle head cannot swing and anti-wear material can not be sprayed on attrition tube sub-surface after putting in.To thorough process, need will hang the whole fracture of trombone slide, pipe clamp remove pull open pipe arrange between gap could construct, which workload is huge, and length consuming time, manpower demand amount are huge and cannot disposablely complete a time between overhauls(TBO).
Utility model content
The purpose of this utility model to provide a kind of four main tubes of boiler shoe, weares and teares by flue gas to avoid pipeline.
Especially, the utility model provides a kind of four main tubes of boiler shoe, comprising:
The pipe row that and the superheater tube of longitudinal separation arrangement parallel by many is formed, and pass perpendicularly through space between adjacent described superheater tube hang trombone slide, described hang to be separately installed with between trombone slide and adjacent each described superheater tube limit and fix the fixing fixture block of position between the two
The axial arranged abrasion resistant box hanging trombone slide described in prolonging is installed in the described space of hanging trombone slide described in installing; Described abrasion resistant box comprises the first baffle plate fitted with the described outer surface hanging trombone slide, and along the axial two side ends second baffle that extends of Vertical dimension and described first baffle plate and the described binding face rightabout hanging trombone slide and the third gear plate respectively of described first baffle plate; Wherein, the described second baffle of the described abrasion resistant box after installation contacts with the described described heat pipe hanging adjacent two of trombone slide respectively with described third gear plate.
Further, described first baffle plate is connected by transition plate with between described second baffle and described third gear plate, hangs the distance between trombone slide and adjacent described heat pipe described in the width of described transition plate is more than or equal to.
Further, the width of described second baffle and described third gear plate is more than or equal to the width of described first baffle plate.
Further, the cross section of described first baffle plate is and the described arc hanging trombone slide external surface shape and adapt.
Further, the lateral surface of the described second baffle of described abrasion resistant box in axial one end and described third gear plate is fixed with otic placode respectively, described abrasion resistant box by described otic placode respectively be positioned at described in hang the adjacent described fixing fixture block at trombone slide top fixing after fit with the described trombone slide that hangs.
Abrasion resistant box of the present utility model, owing to directly having blocked the flue gas circulation of hanging trombone slide both sides, therefore avoids disturbing mutually of both sides flue gas, thus avoids heat pipe and be worn.
Abrasion resistant box of the present utility model can be applied in same position, different tube diameters and pipe trestle column, suitably can adjust corresponding size according to equipment actual design structure.It is little that the installing additional of abrasion resistant box makes to hang gap between trombone slide and heat pipe, can not produce new smoke corridor therefore can not produce new undesirable element.Abrasion resistant box after fixing can not rocking and expanding and occur to loosen or drop because of boiler tubing, also heat pipe will be made greatly and again to wear and tear because of gap.
This apparatus design is simple, and cost is low, easy for installation, and effect is good; Both the unfailing performance that heat pipe wearing and tearing also improve boiler heating surface pipeline simultaneously had effectively been solved.
According to hereafter by reference to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present utility model with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the mounting structure schematic diagram of pipe row in prior art;
Fig. 2 is the mounting structure schematic diagram hanging trombone slide and heat pipe in prior art;
Fig. 3 is the structural representation of the abrasion resistant box according to the utility model embodiment;
Fig. 4 is the abrasion resistant box mounting structure schematic diagram according to the utility model embodiment.
Detailed description of the invention
As Figure 1-4, four main tubes of boiler shoe of the present utility model can comprise pipe row 10 in general manner, hang trombone slide 20 and abrasion resistant box 40.The heat pipe 11 of this pipe row 10 parallel and longitudinal separation arrangement by many is formed, and the heat pipe 11 in pipe row 10 can be the array of a rectangle according to the exhaust smoke level of boiler, discharges after the flue gas of discharging in boiler vertically blows over each heat pipe.This hangs trombone slide 20 and passes perpendicularly through space between adjacent superheater tube 11, hangs to be separately installed with between trombone slide 20 and adjacent each superheater tube 11 limit and fix the fixing fixture block 30 of position between the two; Hang trombone slide 20 to limit in the vertical direction at heat pipe 11 and stationary pipes row 10, to improve the intensity of pipe row 10.This abrasion resistant box 40 to be arranged in the space of installing and hanging trombone slide 20 and to prolong and hangs the axial arranged of trombone slide 20, the length of abrasion resistant box 40 is corresponding with the length of hanging trombone slide 20, at least will equal pipe and arrange in 10 vertical direction distance between heat pipe 11 topmost and heat pipe 11 bottom.As shown in Figure 3, this abrasion resistant box 40 can comprise the first baffle plate 41 fitted with the axial external surface of hanging trombone slide 20, and along the axial two side ends second baffle 42 that extends of Vertical dimension and the first baffle plate 41 and the binding face rightabout hanging trombone slide 20 and the third gear plate 43 respectively of the first baffle plate 41.
As shown in Figure 4, the axial external surface of hanging trombone slide 20 between first baffle plate 41 of the abrasion resistant box 40 after installation and adjacent heat pipe 11 is fitted completely, second baffle 42 contacts with the heat pipe 11 hanging adjacent two of trombone slide 20 respectively with the lateral surface of third gear plate 43, and the cross section of abrasion resistant box 40 on the whole forms a M shape.The flue gas of vertically blowing over and hanging trombone slide 20 can be isolated after pipe row 10 installs abrasion resistant box 40 additional, the flue gas hanging trombone slide 20 both sides not disturbed mutually by the space in geometrical clamp block 30, eliminates the generation of eddy current, thus the heat pipe 11 at this place is protected.And abrasion resistant box 40 is little with heat pipe 11 bonding gap hanging trombone slide 20 and both sides, can not produce new smoke corridor, therefore can not produce new undesirable element.
Further, as shown in Figure 3, for improving the blocking effect of abrasion resistant box 40 both sides, in an implementation column of the present utility model, the width of second baffle 42 and third gear plate 43 can be arranged to the width being more than or equal to the first baffle plate 41.This structure can prevent flue gas from again forming flow-disturbing by between the both sides of abrasion resistant box 40 and fixing fixture block 30.
Further, as shown in Figure 3, in an embodiment of the present utility model, the cross section of the first baffle plate 41 of this abrasion resistant box 40 can be and the arc hanging trombone slide 20 external surface shape and adapt.What hang trombone slide 20 employing in the present embodiment is circular steel pipe, and therefore the first baffle plate 41 adopts arcuate structure to make laminating tightr.And in other embodiment, this hangs trombone slide 20 can also adopt rectangular steel tube, I-shaped channel-section steel or U shape channel-section steel, and therefore the binding face of the first baffle plate 41 also needs to adopt the binding face adapted.
In an embodiment of the present utility model, as shown in Figure 3, conveniently adapt to different distance of hanging between trombone slide 20 and adjacent heat pipe 11, the first baffle plate 41 of this abrasion resistant box 40 can be connected by transition plate 44 with between second baffle 42 and third gear plate 43.The width of this transition plate 44 is more than or equal to the distance of hanging between trombone slide 20 and adjacent heat pipe 11.Carry out the distance between shutoff first baffle plate 41 side and adjacent heat pipe 20 by transition plate 44, the first baffle plate 41 can be avoided to be out of shape, make itself and the combination of hanging trombone slide 20 tightr, and then prevent in flue gas gap between and form new flow-disturbing.The width of this transition plate 44 can according to the first baffle plate 41 to the contact area of binding face of hanging trombone slide 20 and corresponding adjustment.Make abrasion resistant box 40 can in same position by the present embodiment, different tube diameters and pipe be arranged in 10 spacing and are applied.
For convenience of installation and removal abrasion resistant box 40, in an embodiment of the present utility model, this abrasion resistant box 40 can fix otic placode (not shown) respectively at the lateral surface of the second baffle 42 of axial one end and third gear plate 43.Abrasion resistant box 40 by otic placode respectively be positioned at the adjacent fixing fixture block 30 hanging trombone slide 20 top fixing after again with hang trombone slide 20 and fit.Abrasion resistant box 40 lower end in the present embodiment is not fixed, and the position of whole abrasion resistant box 40 can be facilitated to adjust.In addition, in other embodiments, this abrasion resistant box 40 also can be fixed with hanging trombone slide 20.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present utility model is illustrate and described herein detailed, but, when not departing from the utility model spirit and scope, still can directly determine or derive other modification many or amendment of meeting the utility model principle according to content disclosed in the utility model.Therefore, scope of the present utility model should be understood and regard as and cover all these other modification or amendments.
Claims (5)
1. a four main tubes of boiler shoe, is characterized in that, comprising:
The pipe row that and the superheater tube of longitudinal separation arrangement parallel by many is formed, and pass perpendicularly through space between adjacent described superheater tube hang trombone slide, described hang to be separately installed with between trombone slide and adjacent each described superheater tube limit and fix the fixing fixture block of position between the two, the axial arranged abrasion resistant box hanging trombone slide described in prolonging is installed in the described space of hanging trombone slide described in installing; Described abrasion resistant box comprises the first baffle plate fitted with the described outer surface hanging trombone slide, and along the axial two side ends second baffle that extends of Vertical dimension and described first baffle plate and the described binding face rightabout hanging trombone slide and the third gear plate respectively of described first baffle plate; Wherein, the described second baffle of the described abrasion resistant box after installation contacts with the described described heat pipe hanging adjacent two of trombone slide respectively with described third gear plate.
2. a kind of four main tubes of boiler shoe according to claim 1, it is characterized in that, described first baffle plate is connected by transition plate with between described second baffle and described third gear plate, hangs the distance between trombone slide and adjacent described heat pipe described in the width of described transition plate is more than or equal to.
3. a kind of four main tubes of boiler shoe according to claim 1, is characterized in that, the width of described second baffle and described third gear plate is more than or equal to the width of described first baffle plate.
4. a kind of four main tubes of boiler shoe according to claim 1, is characterized in that, the cross section of described first baffle plate is and the described arc hanging trombone slide external surface shape and adapt.
5. a kind of four main tubes of boiler shoe according to claim 1, it is characterized in that, the lateral surface of the described second baffle of described abrasion resistant box in axial one end and described third gear plate is fixed with otic placode respectively, described abrasion resistant box by described otic placode respectively be positioned at described in hang the adjacent described fixing fixture block at trombone slide top fixing after fit with the described trombone slide that hangs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648644.7U CN204201864U (en) | 2014-11-04 | 2014-11-04 | A kind of four main tubes of boiler shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648644.7U CN204201864U (en) | 2014-11-04 | 2014-11-04 | A kind of four main tubes of boiler shoe |
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| Publication Number | Publication Date |
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| CN204201864U true CN204201864U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420648644.7U Active CN204201864U (en) | 2014-11-04 | 2014-11-04 | A kind of four main tubes of boiler shoe |
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| CN (1) | CN204201864U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351913A (en) * | 2015-12-24 | 2016-02-24 | 山东电力建设第一工程公司 | Anti-wear scheme for pipeline on heating surface of boiler |
| CN112709984A (en) * | 2020-12-30 | 2021-04-27 | 哈尔滨锅炉厂有限责任公司 | Novel external heat exchanger for CFB boiler |
-
2014
- 2014-11-04 CN CN201420648644.7U patent/CN204201864U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351913A (en) * | 2015-12-24 | 2016-02-24 | 山东电力建设第一工程公司 | Anti-wear scheme for pipeline on heating surface of boiler |
| CN112709984A (en) * | 2020-12-30 | 2021-04-27 | 哈尔滨锅炉厂有限责任公司 | Novel external heat exchanger for CFB boiler |
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