CN101122451B - Boiler pipe wall - Google Patents
Boiler pipe wall Download PDFInfo
- Publication number
- CN101122451B CN101122451B CN2007101527159A CN200710152715A CN101122451B CN 101122451 B CN101122451 B CN 101122451B CN 2007101527159 A CN2007101527159 A CN 2007101527159A CN 200710152715 A CN200710152715 A CN 200710152715A CN 101122451 B CN101122451 B CN 101122451B
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- China
- Prior art keywords
- tube wall
- boiler tube
- impact bar
- boiler
- fin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
- F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
Abstract
A boiler tube wall restrains the air flue (7) where the high-temperature flue gas containing the dust or flue dust flows through and is composed of a plurality of finned tubes (2) which basically perpendicularly extend and guide the activating medium or the tube-contact pin-tube combination (3, 4), besides a knocking device or impacting device which is used to exert the knocking energy or impacting energy to the boiler tube wall (1) in order to eliminate the dust or flue dust accumulated on the boiler tube wall (1) at the inner side (6) of the boiler is arranged on the boiler tube wall (1) at the outside (5) of the boiler; wherein the boiler tube wall is formed that an impact bar (8) which extends horizontally and parts from the boiler tube wall (1) for (X) is arranged to uniformly transfer the knocking energy or impacting energy to the boiler tube wall (1), the impact bar is connected with the boiler tube wall (1) by a plurality of fins (9) which are vertically arranged, wherein the fin (9) is elastically formed between the boiler tube wall (1) and the impact bar (8) along the transverse direction in order to absorb the horizontal different linear expansion of the boiler tube wall (1) and the impact bar (8), and according to the elastic structure along the transverse direction the fin (9) can absorb a transverse shifting amount (E) which confirms the relation that ''the transverse shifting amount (E) is equal to 0.001 to 0.1 time of the distance (X) between the boiler tube wall (1) and the impact bar (8)''.
Description
Technical field
The present invention relates to a kind of boiler tube wall that is used for limiting the flue that high-temperature flue gas flow through that contains dust or cigarette ash, this boiler tube wall by a plurality of perpendicular trend and the finned tube of transportation work medium or combining of pipe-contact pin-pipe, and a knocking device or percussion mechanism are installed in the boiler outside at boiler tube wall, it will knock energy or impact energy outputs on the boiler tube wall, so that remove dust or cigarette ash on the boiler inboard that accumulates in boiler tube wall.
Background technology
As everyone knows, the boiler tube wall of the above-mentioned type has one or more knocking device or percussion mechanism at it on the side of outside that is the boiler outside, it is used for removing dust or the cigarette ash that boiler tube wall is inboard or gathered on boiler tube wall one side of flue.For the heat of the high-temperature flue gas of the flue that keeps flowing through effectively passes to the working media of the boiler tube of flowing through, just must use this type of device, can reduce the heat transmission because be covered with the boiler tube wall of cigarette ash and dust.
Document US 3,835,817 have announced a kind of device, can clean from the outside to boiler tube or the not interconnective boiler tube wall of its pipe by this device.This utilizes driven hammer that knocks that shock pulse is outputed to the end of a boiler tube wall distributor block, knocks hammer and carries out damping by a pair of disk spring.Can reach big acceleration by shock pulse, dirt on boiler tube or the boiler tube wall or lime-ash are shaken off.But for using on the boiler tube wall of the combination that finned tube or pipe-contact pin-pipe are arranged therein, just be connected with each other and form thus the boiler tube of airtight tube wall, this device is how many actual use value not.Problem just is: this type of boiler tube wall is firmer than first kind of mentioned tube wall, and therefore the shock pulse that acts on the boiler tube wall distributor block end demonstrates not satisfied cleaning action.
Document DE 202 11 156 U1 have announced a kind of device that adheres to dust that is used to remove on the boiler wall, wherein among at least one impact forming part of the outside of boiler wall is embedded into an opening of boiler wall, impact forming part and be connected at least one anvil device, can especially be dropped hammer by at least one tup acts on this anvil device.On this device by impacting forming part, can be not towards the boiler wall, but directly knock towards the dust that adheres to that is positioned on the inboard, boiler wall because impact the opening that forming part is passed the boiler wall, when triggering an impact with adhere to dust and contact.Be in weak point on this device: run through the opening that impacts forming part by being used on the boiler wall at boiler, itself no longer is airtight owing to these openings communicate with atmosphere, and must seal towards atmosphere by sealing device very expensive on each single assembly.Also have a shortcoming to be: to impact flue gas and deposit that forming part directly places boiler, therefore corroded and corrode.
Summary of the invention
Task of the present invention is, a kind of boiler tube wall is provided and a kind ofly is used for the device that it cleans, and avoids above-mentioned all shortcomings simultaneously.A kind of device especially is provided, by cigarette ash and the dust as far as possible thoroughly cleaning boiler pipe wall of this device from the boiler madial wall that accumulates in boiler tube wall, this boiler tube wall limits the flue that high-temperature flue gas flow through that contains dust or cigarette ash, and is constituted by some perpendicular trends and finned tube or pipe-contact pin-pipe the guiding working media.
Above-mentioned task can be by Patent right requirement 1 the feature of characteristic solve.This solution is set at this: constitute have a level trend and with the boiler tube wall spacing of being separated by be the impact bar of X, so that will knock energy or impact energy evenly is delivered on the boiler tube wall, utilize some vertically disposed fins that impact bar is linked to each other with boiler tube wall, wherein fin is flexibly constituting along horizontal direction between boiler tube wall and impact bar on its extension, so that can absorb the not collinear expansion of boiler tube wall and impact bar horizontal direction.
Useful design of the present invention draws in the dependent claims.
By solution of the present invention, a kind of boiler tube wall that has the device that is used for its cleaning is provided, have following advantage:
-unique shock pulse can be delivered on the boiler tube wall in large area,
-independently and no matter the different lines that caused by heat of impact bar expand, boiler tube wall can expand,
-since boiler tube wall and impact bar freely and the uncrossed line that causes by heat expand, avoid in these parts and the crackle in the weld seam that connects these two parts,
-owing to can use the impact bar of big or broad, each boiler tube wall only needs a small amount of impact bar.
In favourable structure, vertical fin with link to each other at the fin between the boiler tube or link to each other with contact pin between boiler tube, boiler tube wall.By this measure shock pulse is delivered in fin or the contact pin, rather than is delivered on the pipe.Owing to be fixedly connected, therefore do not form damp impacts.
What conform with purpose is, so that (2 * t) distance is provided with fin along the length of impact bar every two tube pitch.Realize thus shock pulse is imported in the boiler tube wall equably.
In particularly advantageous mode fin is welded on boiler tube wall and the impact bar.Adopt this measure, fin is linked to each other with impact bar with boiler tube wall with simple and effective means.
In a kind of favourable structure of the present invention, these fins are seen respectively along its vertical extension and are made of two parts.Adopt this measure, realize the obviously better welding accessibility of each fin.
To conform with the mode of purpose, impact bar is designed to the hollow profile or the solid profile of rectangle or other sealing.Also can be designed to it double-T shaped or U type profile, the perhaps profile of other opening.Guarantee that impact bar has sufficient rigidity so on the one hand, can purchase impact bar simply as the semi-finished product of making on the other hand.
In a favorable structure of the present invention, impact bar is designed to have one or two horizontally disposed fins in the centre, is used for being connected with boiler tube wall.The axial force that so just can absorb in the impact bar to be occurred, and be delivered in the boiler tube wall.
In favourable structure of the present invention, impact bar extends on 0.5 to 5.0 meter length.Guarantee to cover the boiler tube wall of different in width like this.
Conform with the destination, at the spacing X between boiler tube wall and the impact bar between 10 to 1000mm.Adopt this measure, for percussion mechanism, impact bar also can keep free state, for example when isolating the outside of boiler tube wall.
In order to realize best boiler tube wall cleaning, advantageously, see that in vertical direction these impact bars are 2 to 5 meters at the mutual spacing of vertical direction when using a plurality of impact bar.
In front end area, just fin and impact bar can be welded together, so that the impulsive force or the shock pulse of impact bar is directly delivered on the boiler tube wall at the front end of impact bar or an end of directed outside.
In order to be delivered on the boiler tube wall, conform with being perpendicular to boiler tube wall and also fin being set thus of purpose perpendicular to impact bar with the impact energy of effective and efficient manner the most with impact bar.
Description of drawings
Below will with reference to the accompanying drawings and illustrate, embodiments of the invention will be explained in detail.
Wherein:
The signal profilograph (according to prior art) of the boiler tube under the effect of Fig. 1 shock pulse,
Fig. 2 is being in the plane of example with the water surface, the caused pulse propagation schematic diagram of shock pulse,
The boiler tube wall perspective illustration of Fig. 3 prior art, it has thereon double-T shaped support of being provided with as impact bar,
The boiler tube wall perspective illustration of Fig. 4 prior art, it has thereon hollow sting of being provided with as impact bar,
Fig. 5 has the boiler tube wall cross sectional representation of impact bar of the present invention, and wherein cross section illustrates " cold state ", and just the boiler tube wall of boiler is in the off-duty state,
Fig. 6 is the same with Fig. 5, expands but have different lines, because in boiler running process, and different being heated of boiler tube wall and impact bar,
Fig. 7 boiler tube wall of the present invention and a kind of optional structure perspective illustration that is used for its cleaning,
Fig. 8 boiler tube wall of the present invention and the another kind of optional structure perspective illustration that is used for its cleaning,
Fig. 9 a kind of boiler tube wall schematic diagram of the present invention, use therein is finned tube,
Figure 10 a kind of boiler tube wall schematic diagram of the present invention, use therein is pipe-contact pin-pipe composite structure.
The specific embodiment
The dust of the boiler inboard 6 of boiler tube wall 1 or the cleaning of cigarette ash can be by knocking or percussion mechanism enforcement, boiler tube wall 1 limits flue that high-temperature flue gas flow through 7 that contains dust or cigarette ash and the finned tube 2 (Fig. 9) that is moved towards by some perpendicular and guide working media or pipe-contact pin-pipe 3,4 (Figure 10) combination and makes; This knocks or percussion mechanism is arranged on the outside 5 of boiler tube wall 1, and wherein knocks energy or impact energy is applied on the point of boiler tube wall 1.Impact or pulse can be delivered on object that is the boiler tube wall 1 13 at this dish-shaped spring, can mate in this wise, make the pulse that is produced be equivalent to the sinusoidal half-wave that frequency is approximately 1000Hz.If pulse receiver is a boiler tube 2,3, then pulse just is distributed on two sine waves, and these two sine waves continue to propagate in the both sides of impulse action point 14.If what adopted is the boiler tube (external diameter 38mm, wall thickness 4.5mm) of 38 * 4.5 common specifications, then the length of half-sinusoid is approximately 300mm.If boiler tube 2,3 freely hangs, then in fact pulse can propagate far and not loss.Shown in Figure 1 is the vertical section schematic diagram with boiler tube 2,3 of an impulse action point 14, shock pulse 15 is defeated by boiler tube 2,3 on impulse action point 14, and therefore at the both sides of impulse action point 14 generation impulse wave 16.Near impulse action point 14, boiler tube 2,3 remains static.
In the wall of Bao Erping, be a boiler tube wall 1 as it, the distribution of point-like shock pulse 15 is difficult.Impulse wave 16 rounded propagation, and the length of impulse wave 16 can become increasing, therefore can lose its action effect and size gradually.For example in water, cause and when pulsation also can see this phenomenon, as shown in Figure 2 when falling into certain object.
For example, the shock pulse 15 of aiming at impulse action point 14 must be very strong, so that for example enough pulse strengties are delivered to the zone enough far away of thin-walled.But on impact or impulse action point 14, cause too big load or pressure so again.In order to prevent so high load, can by the bar of a welding for example shaped support propagate shock pulse 15.In bar, the half-wave length of shock pulse 15 is approximately 400 to 500mm.If wall is made of the plain plate of 8mm, then the half-wave length of shock pulse 15 only is 137mm.This moment, impulse wave 16 be an elliptical shape, promptly was more prone to the pulse front end of linearity, so pulse power is also much larger than the pulse power of point-like impulse action point 14.
Compare with shock pulse 15 is applied on the plain plate, shock pulse 15 is applied to by then more difficult on finned tube 2 or the boiler tube wall 1 that pipe-contact pin- pipe 3,4 combinations are made.Reason just is: though fin 11 between the boiler tube 2,3 or contact pin 4 only have the thickness of 6～8mm, boiler tube 2,3 itself is more much bigger than the rigidity of fin 11 or contact pin 4.For example the boiler tube wall 1 that constituted of finned tube 2 will be larger about 25 times around the rigidity of its vertical axis around the ratio of rigidity of its horizontal axis.Therefore be difficult to utilize the impulse wave 16 of the shock pulse 15 formation flattened oval face forms on this type of boiler tube wall 1.
Shown in Figure 3 is a kind of with the prior art of 140mm I-shaped support as impact bar 8.When filling working medium water in the finned tube 2 of boiler tube wall, the impulse wave 16 of 280mm half-wave wavelength appears having after applying shock pulse 15.I-shaped support self also bears a part of tube wall weight, and having the half-wave wavelength after shock pulse 15 is the impulse wave 16 of 424mm.The front end shaped slightly ovalize of impulse wave 16.Shown in Figure 4 is a kind of with the prior art of 250 * 150 * 10mm box-shaped shaped steel as impact bar 8.The impulse wave 16 that the half-wave wavelength is 743mm appears when shock pulse 15 is applied on this impact bar 8.The front end shape of this impulse wave 16 promptly is delivered to shock pulse 15 on the boiler tube wall 1 with higher effect and efficient by the box-shaped section bar significantly better than the front end shape of impulse wave shown in Figure 3 16.
Subject matter when using impact bar 8 just is shock pulse 15 transmission 1 from impact bar 8 to boiler tube wall.Someone once attempted impact bar 8 is pressed onto on the boiler tube wall 1.When compressing, pulse only is delivered on the wall with the form that weakens.Therefore substitute and compress impact bar 8 merely, clean the methods availalbe of tube wall, by welding impact bar 8 and boiler tube wall 1 are linked together exactly as unique being used to.
But impact bar 8 and boiler tube wall 1 welded together also can bring new problem,, therefore also can stand extremely different expansions because these two parts have extremely different temperature in running.The temperature of boiler tube wall 1 may change rapidly in running, especially the temperature in the contact pin 4 between fin 11 or the boiler tube 2,3.Big temperature contrast can cause big stress, finally can cause the fatigue crack between impact bar 8 and boiler tube wall 1.Although these crackles seldom cause the leakage in the boiler tube wall 1, these have the position of crackle can't transmit the shock pulse 15 that is provided for cleaning.
The present invention has solved the problems referred to above by following measures: constitute as shown in Figure 5 have one be the level trend and with the spacing of boiler tube wall 1 be the boiler tube wall of the impact bar 8 of X, so that will knock energy or impact energy evenly is delivered on the boiler tube wall 1, this impact bar utilizes some vertically disposed fins 9 to link to each other with boiler tube wall 1, and fin 9 is flexibly constituting along horizontal direction between boiler tube wall 1 and impact bar 8 on its extension, expands so that absorb the line of the different level of boiler tube wall 1 and impact bar 8; And wherein for fin 9 according to it along the flexible structure of horizontal direction, can absorb one and concern lateral shift E according to " transversal displacement E equals 0.001～0.1 times of spacing X between boiler tube wall 1 and the impact bar 8 ".The line of different levels expands different, is meant that on the one hand the line of the level of boiler tube wall 1 on its width expands, and is meant that on the other hand the line of the level of impact bar 8 on its length L direction expands.Utilize knocking device or percussion mechanism that shock pulse 15 is passed to central authorities hard and heavy impact bar 8.The length of impact bar 8 is preferably between 0.5 to about 5 meters, and same wide boiler tube wall interval is kept clean.Each horizontal impact bar 8 on the boiler tube wall 1 surrounds a preferred effective depth at this and is approximately 2～5 meters boiler tube wall 1.Impact bar 8 is sent to shock pulse 15 at the two ends of impact bar 8.Impact bar 8 can connect or be connected with any second fin 11 or any second contact pin 4 of boiler tube wall 1.Connect or connect by vertically disposed fin 9 recited above, the associated end of fin 8 and impact bar 8 and boiler tube wall 1 are welded together by weld seam 12.
If some vertically disposed fins 9 are arranged, then impact bar 8 is constituting at least three but the fin more than three 9 normally on its length direction.Can after one section tube pitch t, a fin 9 be arranged between boiler tube wall 1 and the impact bar 8 in theory.Fig. 5～10 illustrate a kind of favourable structure, are that 2 * t is provided with a fin 9 every two tube pitch.Well imagine, also a fin 9 can be set every the tube pitch more than three or three.The height of each fin 9 or its vertical dimension all are limited in the scope of impact bar 8.Can make fin be higher or lower than impact bar 8 with a sufficient surplus so that corresponding fin 9 can be welded on boiler tube wall 1 and the impact bar 8, and can with knock energy or impact energy from impact bar 8 reliable delivery to boiler tube wall 1.Advantageously be provided with at this fin 9 perpendicular to boiler tube wall 1.Can be used as the similar device that knocking device or percussion mechanism for example use unshowned jump bit or can drive with machinery, hydraulic pressure, pneumatic or electronic mode.
Fig. 6 illustrates of the present invention being used for and just is in the device that under the condition of high temperature boiler tube wall 1 is cleaned at boiler tube wall 1 at running.Because wall temperature height (can reach more than 400 ℃), the expansion of boiler tube wall 1 is far longer than the expansion of impact bar 8.By flexible fin 9 between these two parts 1 and 8 in the horizontal direction and be parallel to boiler tube wall 1 and see that the differential expansion that is produced compensates.For the ease of seeing clearly, in Fig. 6, it is shown significantly enlargedly.Flexible fin 9 is absorbing different transversal displacement E between impact bar 8 and the boiler tube wall 1 on the extension of impact bar 8 or the length L.One fin 9 that is arranged in the middle of the impact bar 8 does not so well absorb side-play amount E, and the elasticity fin 9 that is arranged on impact bar 8 outer ends then absorbs maximum offset E.
Utilize like this this device possible be to utilize knocking device or percussion mechanism that the zone of the non-constant width of boiler tube wall 1 is kept clean.Because impact bar 8 tools have the dimensions and weight, the therefore hammer that can use bigger being used to knock and impact so just can obviously reduce the quantity of required jump bit or knocking device.
Shown in Figure 7 is that a kind of it has the device that is used for its cleaning by boiler tube wall 1 of the present invention, uses hollow profile as impact bar 8.Each fin 9 that is vertically installed between boiler tube wall 1 and the impact bar 8 is divided into two parts 9a, 9b, and is connected on boiler tube wall 1 and the impact bar 8 by weld seam 12.Because fin 9a, 9b that wall thickness is thin elongated and therefore unusual rubber-like structure, impact bar 8 can be navigated to fully boiler tube wall 1 near, just the spacing X between boiler tube wall 1 and the impact bar 8 can keep minimum degree.Shock pulse 15 is passed to and is positioned on impact bar 8 Centromedian impulse action points or the anvil 14.Be approximately the shock pulse 15 of 1000Hz by spring shim or the disk spring 13 transmission frequencies that hammering produced.
Shown in Fig. 7,8, in the front end area of impact bar 8, fin 9a, 9b and impact bar are welded together, so that the shock pulse 15 of impact bar 8 is delivered in the boiler tube wall 1 with optimum efficiency.That is to say that fin 9a, 9b mainly are positioned at the leading edge of impact bar 8, rather than on the close trailing edge of boiler tube wall 1.
List of numerals:
1 boiler tube wall
2 finned tubes or boiler tube
3 pipe or boiler tubes
4 contact pin
The 5 boilers outside
6 boiler inboards
7 flues
8 impact bars
9 vertical fins
The two-part fin that 9a is vertical
The two-part fin that 9b is vertical
The fin of 10 levels
11 fins
12 weld seams
13 pads or disk spring
14 impulse actions point
15 shock pulses
16 impulse waves
Claims (13)
1. boiler tube wall, this boiler tube wall limits the flue that high-temperature flue gas flow through that contains dust or cigarette ash and encloses (7) and be vertically extending basically by some, and the finned tube (2) of guiding working media or pipe-contact pin-pipe combination (3,4) make, and the boiler outside (5) at boiler tube wall (1) is provided with a knocking device or percussion mechanism, this knocking device or percussion mechanism are used for being applied on the boiler tube wall (1) knocking energy or impact energy, so that remove dust or cigarette ash on the boiler inboard (6) that accumulates in boiler tube wall (1), it is characterized in that: boiler tube wall constitute one be horizontal-extending and with boiler tube wall (1) spacing of being separated by be the impact bar (8) of X, so that will knock energy or impact energy evenly is delivered on the boiler tube wall (1), this impact bar links to each other with boiler tube wall (1) by some vertically disposed first fins (9), wherein first fin (9) is flexibly constituting along horizontal direction between boiler tube wall (1) and impact bar (8) on its extension, so that can absorb the not collinear expansion of boiler tube wall (1) and impact bar (8) level, according to its elastic construction, can absorb a transversal displacement E according to the relation of " transversal displacement E equals 0.001～0.1 times of spacing X between boiler tube wall (1) and impact bar (8) " for first fin (9) along horizontal direction.
2. boiler tube wall according to claim 1 is characterized in that: first fin (9) is connected with the fin (11) or the contact pin (4) of boiler tube wall (1).
3. boiler tube wall according to claim 1 is characterized in that: on the length L direction of impact bar (8), first fin (9) is provided with in the mode every two tube pitch of boiler tube wall (1).
4. according to claim 1 or 2 described boiler tube walls, it is characterized in that: first fin (9) was realized by weld seam (12) with being connected respectively of boiler tube wall (1) and impact bar (8).
5. boiler tube wall according to claim 1 is characterized in that: corresponding first fin (9) sees that along its vertical dimension (9a 9b) constitutes by two parts respectively.
6. boiler tube wall according to claim 1 is characterized in that: impact bar (8) constitutes the open section or the solid section of rectangle or other sealing.
7. boiler tube wall according to claim 1 is characterized in that: impact bar (8) constitutes I shape or U type section or other open section.
8. require 1 described boiler tube wall according to uncle's profit, it is characterized in that: impact bar (8) is configured with one or two horizontally disposed second fins (10) of being connected with boiler tube wall (1) of being used in central authorities.
9. according to claim 1,6 or 7 described boiler tube walls, it is characterized in that: impact bar (8) is to extend on 0.5～5.0 meter the length in length L.
10. boiler tube wall according to claim 1 is characterized in that: the spacing X between boiler tube wall (1) and impact bar (8) is between 10 to 1000mm.
11. boiler tube wall according to claim 1 is characterized in that: when using a plurality of impact bars (8), impact bar (8) mutual spacing in vertical direction is 2～5 meters.
12. boiler tube wall according to claim 1 is characterized in that: first fin (9) in the front end area of impact bar (8) with its welding.
13. boiler tube wall according to claim 1 is characterized in that: first fin (9) is provided with perpendicular to boiler tube wall (1).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006026518 | 2006-06-06 | ||
| DE102006026518.1 | 2006-06-06 | ||
| DE102007024286A DE102007024286B4 (en) | 2006-06-06 | 2007-05-23 | Boiler pipe wall and device for its cleaning |
| DE102007024286.9 | 2007-05-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101122451A CN101122451A (en) | 2008-02-13 |
| CN101122451B true CN101122451B (en) | 2010-11-03 |
Family
ID=38663955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101527159A Active CN101122451B (en) | 2006-06-06 | 2007-06-05 | Boiler pipe wall |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN101122451B (en) |
| AU (1) | AU2007202566B2 (en) |
| DE (1) | DE102007024286B4 (en) |
| FI (1) | FI122779B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI122923B (en) | 2010-11-23 | 2012-08-31 | Kamwest Oy | Percussion device for cleaning surfaces, especially heating surfaces |
| JP6837951B2 (en) * | 2017-10-12 | 2021-03-03 | 日立造船株式会社 | Cleaning device |
| CN107907004B (en) * | 2017-11-23 | 2019-08-13 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of pipeline detergency device |
| JP6635481B1 (en) * | 2018-12-03 | 2020-01-29 | 株式会社タクマ | Method and apparatus for removing dust from boiler radiation heat transfer surface in stoker-type incinerator with boiler |
| ES2960569T3 (en) * | 2019-08-29 | 2024-03-05 | Sumitomo SHI FW Energia Oy | Spring hammer for tapping a surface |
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-
2007
- 2007-05-23 DE DE102007024286A patent/DE102007024286B4/en active Active
- 2007-06-05 AU AU2007202566A patent/AU2007202566B2/en active Active
- 2007-06-05 CN CN2007101527159A patent/CN101122451B/en active Active
- 2007-06-05 FI FI20070447A patent/FI122779B/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87108129A (en) * | 1986-12-22 | 1988-10-05 | 巴布科克和威尔科斯公司 | The electro-Impulse rapper system that is used for boiler |
| US4841917A (en) * | 1987-07-31 | 1989-06-27 | L. & C. Steinmuller Gmbh | Radiation cooling unit for cooling dust-laden gases |
| CN1070260A (en) * | 1991-07-23 | 1993-03-24 | 阿尔斯特罗姆公司 | Heat treatment or flue gas are caused the method and apparatus of gas cooler |
| JP2000136387A (en) * | 1998-10-30 | 2000-05-16 | Takuma Co Ltd | Cleaning apparatus for thermal decomposition gas duct |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101122451A (en) | 2008-02-13 |
| FI20070447A (en) | 2007-12-07 |
| AU2007202566B2 (en) | 2011-04-14 |
| DE102007024286A1 (en) | 2007-12-13 |
| FI20070447A0 (en) | 2007-06-05 |
| DE102007024286B4 (en) | 2012-07-19 |
| AU2007202566A1 (en) | 2007-12-20 |
| FI122779B (en) | 2012-06-29 |
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Effective date of registration: 20160602 Address after: Kassel Patentee after: ARVOS GmbH Address before: Brugge, Switzerland Patentee before: Aohua Technology Co.,Ltd. Effective date of registration: 20160602 Address after: Brugge, Switzerland Patentee after: Aohua Technology Co.,Ltd. Address before: Baden, Switzerland Patentee before: Alstom Technology Ltd. |