WO2000057106A1 - Refractory tile system for boiler tube/heat exchanger protection - Google Patents
Refractory tile system for boiler tube/heat exchanger protection Download PDFInfo
- Publication number
- WO2000057106A1 WO2000057106A1 PCT/US2000/007135 US0007135W WO0057106A1 WO 2000057106 A1 WO2000057106 A1 WO 2000057106A1 US 0007135 W US0007135 W US 0007135W WO 0057106 A1 WO0057106 A1 WO 0057106A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tiles
- wall
- refractory
- refractory tile
- tile
- Prior art date
Links
Classifications
-
- 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
- F23M5/04—Supports for linings
-
- 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
- F22B37/10—Water tubes; Accessories therefor
- F22B37/107—Protection of water tubes
- F22B37/108—Protection of water tube walls
-
- 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
-
- 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
- F23M2900/00—Special features of, or arrangements for combustion chambers
- F23M2900/05004—Special materials for walls or lining
Definitions
- the present invention is directed to refractory tube blocks which protect metallic waterwall tubes from hot and highly corrosive furnace gases, while at the same time maintaining good heat conductivity.
- Refractory tiles have long been used for the protection of boiler walls m waste incinerators and other heat exchanger applications.
- the primary function of the tiles has been to shield the steel alloy boiler walls, which typically include waterwall tubes and membranes or webs disposed therebetween, from the temperature, erosion, and corrosion by acid vapor attack associated with boiler operation. These conditions are generated by the combustion process occurring within t"e boiler.
- Municipal solid waste (MSW) facilities incinerate trash and garbage in furnaces at temperatures of up to about 1400°C.
- water is passed through metallic waterwall tubes adjacent to the furnace and converted to steam by the high temperatures.
- the steam produced in the tube assembly is then used to power a turbme-d ⁇ ven electric generator.
- Refractory tiles for boiler tube protection have traditionally been fabricated from a material such as silicon carbide (SiC) . These tiles typically are provided with a substantially planar face with a contoured back surface sized and shaped to match the contour of the tube wall. Such tiles generally have been fabricated as a variant of one of three configurations, namely bolted tiles; hanging tiles, such as disclosed in U.S. Patent No.
- a countersunk region 34 rypically exists within the hole or bore 30 to act as a seat for a nut 28.
- a stud or threaded bolt 24 is welded to a membrane region 16 between two tubes 18 in the boiler wall 62.
- the contoured back surface 14 of the tile 10 includes accurate portions 20 sized and shaped to receivably match the profile of the tube wall 19 and allow for close contact therewith.
- the tile is installed by fitting the stud through the hole and securing the tile in position with a washer 28 and nut 26 threaded onto the stud.
- a cap (not shown) is then typically mortared in place over the hole to minimize the amount of gas that can flow through clearance between the standard hole to the backside of the tile.
- a layer of mortar (not shown) is typically applied between the tile and the wall 62, and between adjacent tiles, to form a rigid structure which serves to help secure the tile m position and to substantially prevent gas from flowi n g between and/or behind the tiles.
- a disadvantage of such bolted tiles is associated with tile failures. These tiles usually have a 2 to 4 year life expectancy due to stud failure. When the studs fail, the tiles tend to fall off of the walls, leaving the boiler tubes exposed to the incinerator atmosphere. The cause of failure in the studs was previously believed to have been due to high temperature acid corrosion. In particular, it was believed that the acids penetrated the tile through the stud hole to attack the stud. The corrosion was believed to be severe on the stud due to its high operating temperature (believed to be 1000°C or more) . Also, cracking of the tiles was a common occurrence, and believed to have been generated by overstressmg the stud.
- hanging tiles 45 typically utilize an anchor/hook or short stud 37 to hang the tile on the membrane 16 of the boiler wall 62, with gravity utilized to maintain the tile m close proximity to the boiler wall 62 for good heat transfer.
- This tile 45 is a modification of the bolted tile in that one or more holes 30' project from the back surface 14' of the tile toward the hot face 12, but do not fully penetrate the hot face. This provides the tile with a closed face, to theoretically improve acid corrosion resistance.
- a layer of mortar (not shown) is typically installed between the tile 45 and the boiler wall 62, as well as between adjacent tiles to form a rigid, substantially gas and ash impermeable structure.
- a variation of this hanging tile arrangement utilizes the tiles 45 m conjunction with an air sweep system.
- no mortar is installed behind the tiles to leave a gap between the tiles and the boiler wall.
- a flow of air is fed through this gap to help minimize acid corrosion of the wall.
- An advantage of hanging tiles in general is the relative ease of installation and replacement.
- a disadvantage of such hanging tile arrangements is that the tiles generally cannot be installed on non-vertical walls, as the tiles tend to fall off their anchors. Also, tiles have been known to lift off of their anchors during operation ⁇ ue to thermal expansion, etc.
- the above described air sweep system tends to disadvantageously increase the expense of the tile system relative to configurations utilizing mortar. Heat transfer between the tiles and wall also may be disadvantageously reduced due to the insulative (i.e., relatively low thermal conductivity) characteristic of air layers .
- modified hanging tiles 50 have been developed m an attempt to address the drawbacks associated with the hanging tiles becoming dislodged from their anchors or hooks.
- modified configurations are commonly known as mushroom bolt, tube- welded fin anchor, and T-slot tiles.
- These tiles 50 are typically hybrids of bolted tiles and hanging tiles, incorporating a closed tile face 12' with an anchor 52 that has a substantially T-shaped profile, to effectively capture the tiles and allow them to be installed on both vertical and overhanging surfaces.
- These tiles 50 are generally installed with a layer of mortar between the tile and the boiler wall, as well as between adjacent tiles.
- the purpose of the mortar is to help secure the tiles by providing a rigid attachment and to provide a barrier to resist penetration of ash and corrosive gas between and behind the tiles.
- An advantage of tnese modified tiles 50 is that they may be installed on no ⁇ ⁇ naily any boiler surface. Disadvantages of the riles 50 include difficulty of manufacture since they incorporate a blind (i.e., discontinuous) slot 54 projecting laterally into the tile from an edge thereof. Also, the tiles may be physically weaker due to the complexity of the blind slots 54. Moreover, individual tiles generally cannot be replaced without removing a entire row of tiles.
- sjch material may be use ⁇ every 7 to 15 tiles m a manner familiar to those skilled m the art of masonry (i.e., such as commonly utilized m fabrication of concrete sidewalks, etc.)
- These joints tend to disad -antageously permit the oassage of acids and other corrosive materials therethrough, to enable corrosion of the underlying boiler aL.
- the useful life of tile systems having such expansion joints have ot been shown to be appreciably greater than similar t_le configurations not raving such expansion joints.
- a significant aspect of the present invention is the recognition of the problem responsible for many of the failures of the prior art systems. It was recognized that these failures were generated by both bowing of individual tiles (as used herein, “micro-scale” bowing) and collective bowing of multiple tiles (as used herein, “networked” or “macro-scale” bowing) as shown in Fig. 8.
- micro-scale bowing generates forces F wmcn transier tnrougn tne rigi ⁇ mortar (nor shown) re adjacent tiles to thus generate a macro-scale bowing effect.
- the macro-scale bowing applies sufficient tensile stress to the studs to cause failure.
- any significant dimensional instability of the tiles was primarily limited to thermal expansion generated by exposure to elevate ⁇ boiler temperatures.
- any bowing was limited to individual tiles.
- oxidation on the hot face on the tiles occurring over time creates "hot spots" which tend to exacerbate the temperature gradient across the tile to further contribute to the micro-scale bowing effect.
- the macro-scale bowing serves to accelerate the oxidation, thus initiating a self-perpetuating cycle that serves to accelerate the decay of the tiles.
- optimum operating temperature of the hot face of SiC tiles may be approximately 500 to 600 degrees C. Oxidation at this temperature has been found to be minimal and to not substantially affect tile life. However, it has been found that oxidation progresses rapidly in the event the hot face reaches or exceeds about 750 degrees C and continues to accelerate rapidly as the temperature increases further.
- An aspect of the present invention was thus the recognition that the macro-scale bowing serves to separate the tiles from the boiler wall, forming an air gap which generally reduces the heat transfer from the back of the tile to the wall. This decrease in heat transfer effectively increases the temperature at the hot face beyond the preferred operating temperature range.
- the macro-scale bowing eventually has the effect of raising the hot face temperature to the oxidation promoting temperature of 750 degrees C or more. The oxidation in turn, ten ⁇ s to further increase the terrperature gradient which as discussed heremabove, tends to further exacerbate the macro-scale bowing, thus forming a self-perpetuating, deleterious cycle.
- Initial steps in developing the present invention included completion of a first finite element model (FEM) of a conventional 18cm x 18cm bolted tile to assess the cause of cracking in the tiles during operation.
- FEM finite element model
- This analysis revealed the presence of stresses ir tne tile due to tnermal gradients. It also revealed that the individual tiles bow as a function of the thermal gradients. The initial result of this analysis was to increase the thickness of the tile to increase the tile strength .
- a third finite element model was initiated to study the phenomenon of tile bowing and tensile stress.
- the first FEM indicated that bowing of individual tiles, or micro-scale bowing, occurred due to thermal gradients. This bowing, however, was of insufficient magnitude (0.3 mm) to have caused the 6mm deformation observed m the studs.
- a refractory tile system for use on a wall of a boiler includes a plurality of tiles having a floating fastener system engagable with the wall to maintain the tiles in spaced, movable relation to one another.
- the tiles are sized and shaped to provide a gap between adjacent ones of the tiles, the gap being sufficient to accommodate dimensional changes of the tiles exhibited during exposure to operational temperatures of the boiler.
- a corrosion barrier is disposed between the tiles and the wall .
- a refractory tile system for use on a wall of a boiler includes a plurality of tiles disposed on the wall in spaced, movable relation to one another.
- the tiles are sized and shaped to provide a gap between adjacent ones of the tiles, the gap being sufficient to substantially prevent macro-scale bowing of the tiles during exposure to operational temperatures of the boiler.
- a corrosion barrier is disposed between the tiles and the wall to substantially prevent corrosion of the wall.
- a method for increasing the useful life of a wall of a boiler includes the steps of:
- FIG. 1 is a plan view of a bolted refractory tile of the prior art
- FIG. 2 is a cross-sectional view taken along 2-2 of the refractory tile of Fig. 1;
- FIG. 3 is a side elevational cross-sectional view of a hanging refractory tile of the prior art
- FIG. 4 is a top elevational cross-sectional view of the hanging refractory tile of Fig. 3;
- FIG. 5 is a perspective, partially exploded view, with portions broken away, of a modified refractory tile of the prior art, disposed for engagement with a boiler wall ;
- FIG. 6 is a view similar to that of Fig. 2, including a top elevational view of an embodiment of the refractory tile system of the present invention;
- FIG. 7 is a view similar to that of Fig. 6, of an other embodiment of the refractory tile system of the present invention.
- FIG. 8 is a perspective view of an array of prior art refractory tiles bowed on a macro-scale as identified pursuant to the present invention
- FIG. 9 is a schematic cross-sectional vie.' similar to that of Fig. 2, of a portions of a pair of adjacent refractory tiles of the prior art, with portions sno n in phantom to indicate improvement due to bowing;
- FIG. 10 is a view similar to that of Figs. 6 and n , of still an other embodiment of the refractory tile system of the present invention.
- FIG. 11 is a side elevational exploded view of portions of the refractory tile system of FIG. 11;
- FIGS. 12-15 are perspective views of the refractory tile system of FIGS. 10 and 11, of various steps taken during installation of a refractory tile according to the present invention
- FIG. 16 is an elevational schematic representation of a series of conventional bolted tiles of Figs. 1 and 2 installed in a boiler for test;
- FIG. 17 is a graphical representation of test results generated by bolted tiles of FIG. 16.
- FIG. 18 is a graphical representation similar to that of FIG. 17, of test results generated by tiles of the present invention.
- axial when used in connection witn an element described herein, shall refer to a direction relative to the element, which is substantially parallel to the central axis a of tube 18 (i.e., Fig. 7) when the element is disposed in engagement with a tube 18 as shown in Figs. 6, 7, 10 and 14.
- transverse refers to a direction substantially orthogonal to the axial direction.
- a refractory tile system 60 includes a barrier layer coating 61 applied to the wall 62 (i.e., membrane 16 and tube wall 19) of a boiler of an incinerator or heat exchanger.
- the barrier layer 61 is adapted to provide acid and salt corrosion resistance at the normal operating temperatures of the boiler.
- An example of such a coating is a phosphate bonded SiC barrier layer such as PC-1022 W available from Norton Company of r orcester, Massacnusetts Advanta ⁇ eousl y , this material provides relatively good corrosion resistance and thermal conductivity.
- Refractory tiles 66 are then fastened to the tube wall 62 m superposed relation with the wall 62 utilizing a floating attachment mechanism 68.
- the tiles 66 are fabricated from any suitable refractory material known to those skilled m the art, such as, for example silicon carbide (SiC) or other ceramic materials capable of withstanding the temperatures (as high as approximately 1400°C) experienced within the boiler of a MSW incinerator/heat exchanger, and the like.
- the floating attachment mechanism 68 provides the tiles 66 with a relatively high degree of freedom of movement relative to the tube wall 62 to accommodate micro-scale bowing of the tile.
- the micro-scale bowing has been found to be generated by the relatively large temperature gradient (typically about 200 to 600°C or more) experienced by such tiles.
- this temperature gradient has been found to have a substantially greater effect on the dimensional instability of the tiles than the elevated temperature per se, particularly in light of the networking effect in which bowing increases as a square of length of the tile array.
- Each tile 66 is effectively isolated from adjacent tiles by providing a predetermined gap 70 therebetween of sufficient size to effectively prevent macro-scale bo ⁇ g which has oeen fou ⁇ d to be generated by networking. As shown m Fig. 9, this networking phenomena is generated by the pressure or force F exerted by the tiles upon one another through the rigid mortar (not shown) when micro-scale bowed.
- the gap 70 is preferably formed by contoured peripheral edges 72 which are sized and shaped to form a spaced, shiplapped joint oetween adjacent tiles 66.
- This shiplapped configuration advantageously serves to provide an obstructed l ne-of- sight between the tiles to inhibit penetration of ash or other contaminants through the gap 70 during operation of the boiler.
- a compressible fibrous mortar (not shown) may be disposed m the gap or channel 70 between each adjacent tile to further inhibit ash or other contaminant penetration.
- An example of such a suitable compressible fibrous mortar is known as Topcoat 2600TM available from Unifrax Corporation of Niagara Falls, New York.
- the gaps 70 are sized in combination with the known compressibility of the particular compressible mortar selected, so as to maintain any force transfer between tiles at a magnitude low enough to substantially prevent the occurrence of macro-scaled bowing when the individual tiles are disposed in their maximum micro-scale bowed condition.
- floating attachment mechanism 68 includes rails 74 having a plurality of flexible arms 76 with convex terminal ends 78 adapted to engage similarly sized recesses 80 disposed m the tiles 66. Arms 76 are thus biased into releasable engagement with tile 66 to facilitate installation and removal thereof. Moreover, the resiliency of the arms 76 serves to fasten the tile 66 to the wall 62 in a manner which permits the tile 66 to move or "float" relative to the wall 62 in response to dimensional changes of the tile 66 generated by thermal gradients and elevated mean temperatures.
- the floating attachment mechanism 68 enables the tile 66 to move with at least three degrees of freedom (i.e., along three mutually orthogonal axes x, y and z, as shown) relative to the wall 62. Moreover, in addition to translation along the x, y and z axes, the tile may rotate around a tube 18 and/or bow towards or away from a tube 18.
- the rail 74, including arm 76 and convex terminal end 78 are preferably fabricated from a flexible, corrosion resistant material, such as stainless steel.
- the face 112 of the tile 66 may be provided with a contoured geometry which substantially matches the contour of the wall 62 to provide the tile with a relatively uniform thickness t.
- FIG. 7 an alternate embodiment of the present invention is shown as tile system 60' .
- This embodiment is substantially similar to the tile system 60 shown in Fig. 6, while utilizing a substantially planar face 112' and an alternate floating engagement mechanism 68' .
- this fastener system 68' is in many respects similar to fastener system 68 of Fig. 6, though utilizing approximately 50 percent fewer arms 76' .
- floating mechanism 68 and 60' have been shown, it should be recognized by those skilled in the art that substantially any mounting mechanism capable of securing a tile to a wall 62 of a boiler in a manner which permits the tile to expand and/or bow on a micro-scale without generating the macro- bowing effect as set forth heremabove, may be utilized without departing from the spirit and scope of the present invention.
- a rigid mounting arrangement may be used in lieu of the flexible arms ⁇ ard 76', as lo-q as sufficient clearance is provided Petween the ⁇ c ⁇ nt ⁇ ng hardware and the tile to enable the aforementio- ed dimensional changes to occur nominally without ap ⁇ _ mq excessive force or stress to the mounting hardware and/or adjacent tiles.
- an alternate arrangement may include provision of o ⁇ e or more pins 82 (shown in phantom) fabricated from stainless steel or the like, which are msertable i"to substantially oversized bores 84 (shown in phantom) ⁇ sposed within m the tile and which extend substant-cu.lv parallel to the tile face 112
- the pin 82 is in turn, secured to the wall 62 m any convenient manner know ⁇ to those skilled in the art, (not shown) . In this manner, the tile may be secured to the wall 62 with sufficient clearance to effectively "float" relative to the wall as discussed hereinabove.
- tile system 60 is substantially similar to the tile systems 60 and 60' shown in Figs. 6 and 7, while using an alternate floating engagement mechanism 68".
- this fastener system 68" is in many respects similar to fastener system 68' of Fig. 7, though the arms 76" are substantially "C” shaped for enga ⁇ eme ⁇ t with substantially sem ⁇ -cyl ⁇ ndr ⁇ cd_ slots or recesses 80" of the tile 66" as shown.
- the slots 80" of tile 66" include upper slots 81 and lower slots 83, which extend axial ⁇ y inward from upper and lower edges 116 and 118, respectively, of tile 66".
- the upper slot 81 preferably extends an axial distance dl from upper edge 116 that is greater than axial distance d2 of lower slot 83, to facilitate installation of the tile 66" as discussed hereinbelow.
- the upper and lower surfaces 116 and 118 are chamfered, preferably at an angle of approximately 30 to 60 degrees, at their intersection with the slots 81 and 83 to further facilitate installation of the tiles 66" as discussed below. In a preferred embodiment, angle ⁇ is approximately 45 degrees as shown.
- a tile 66" is installed by placing the upper surface 116 of the tile between the upper and lower arms 76", m substantial axial alignment therewith. This orientation may be accomplished by disposing a portion of the upper surface 116 in surface-to-surface engagement with the tubes 18 as shown.
- the surface 116 of tile 66" is movea s ⁇ j_airy upwaras as indicated bv arroi- a, while the lower surface 118 is pivoted closer to the tubes 18 as shown by arrow b. This action serves to slide the upper slot 81 (Fig.
- Example 1 Comparison A series of conventional oolted tiles of the general type shown in Figs. 1 and 2 were installed m a furnace in a pattern as shown m Fig. 16. Tiles labeled A, B, C, and D were instrumented with LVDTs (linear variable- displacement transducers) to measure the displacement of these tiles away from the tube walls during normal furnace operation. As shown, tiles B and D were located n a tile array portion that included a conventional flexible mortar (the above-referenced Topcoat 2600TM) between adjacent tiles. Turning to Fig. 17, the output of the LVDTs indicate that the instrumented tiles were displaced nearly simultaneously with one another, providing evidence that macroscale bowing was taking place. (The differences in displacement magnitude indicated by the plots were apparently due to variations in location of the LVDTs within the tiles.) Note, LVDT 5 located on Tile B malfunctioned and thus is not shown in Fig. 17.
- LVDT 5 located on Tile B malfunctioned and thus is not shown in Fig. 17.
- An array of tiles of the present invention was mounted in a boiler for test.
- the tiles were configured and mounted in the boiler in a manner substantially as shown and described hereinabove with respect to Fig. 7, including use of a barrier material between the boiler wall and the tiles, and Topcoat 2600TM between adjacent tiles.
- Selected tiles indicated as A, B, C, D, ⁇ , and G were instrumented with LVDTs in the manner described in Example 1.
- the output of these LVDTs show that the tiles were displaced independently from one another, in a manner contrary to that shown in Example 1.
- attachment mechanisms 68, 68' and 68" enable the tiles 66, 6-5' and 66" to move or "float" relative to the wall 62, the skilled artisan will recognize that the mechanisms 68, 68' and 68" preferably maintain the tile 66 as close as possible to the surface of the tube 18 to maximize heat transfer through the tile 66 to the tube.
- the aforementioned hanging tile and modified hanging tile systems discussed hereinabove may be utilized in combination with the present invention.
- a conventional bolted tile fastener arrangement as also discussed hereinabove may be modified to provide additional clearance between the stud and bore to perr_t the tile to float relative to the wall to thus be usable in combination with the corrosion barrier and the gap oetween adjacent tiles of the present invention.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0009117-0A BR0009117A (en) | 1999-03-19 | 2000-03-17 | Boiler tube protection refractory roofing system / heat exchanger |
DE60015378T DE60015378T2 (en) | 1999-03-19 | 2000-03-17 | FIRE-RESISTANT BRICKS FOR PROTECTING KESSELROHREN |
AU36306/00A AU3630600A (en) | 1999-03-19 | 2000-03-17 | Refractory tile system for boiler tube/heat exchanger protection |
EP20000914996 EP1226390B1 (en) | 1999-03-19 | 2000-03-17 | Refractory tile system for boiler tube/heat exchanger protection |
JP2000606941A JP3689000B2 (en) | 1999-03-19 | 2000-03-17 | Fireproof tiled construction for boiler tube / heat exchanger protection |
CA002372168A CA2372168C (en) | 1999-03-19 | 2000-03-17 | Refractory tile system for boiler tube/heat exchanger protection |
KR10-2001-7011854A KR100469549B1 (en) | 1999-03-19 | 2000-03-17 | Refractory tile system for boiler tube/heat exchanger protection |
AT00914996T ATE280926T1 (en) | 1999-03-19 | 2000-03-17 | FIREPROOF BRICKS FOR PROTECTING BOILER PIPES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12516099P | 1999-03-19 | 1999-03-19 | |
US60/125,160 | 1999-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000057106A1 true WO2000057106A1 (en) | 2000-09-28 |
Family
ID=22418459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/007135 WO2000057106A1 (en) | 1999-03-19 | 2000-03-17 | Refractory tile system for boiler tube/heat exchanger protection |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU3630600A (en) |
WO (1) | WO2000057106A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1236954A1 (en) * | 2001-03-02 | 2002-09-04 | Karrena GmbH | Plates on boiler tube walls |
WO2003067154A1 (en) * | 2002-02-02 | 2003-08-14 | Saint-Gobain Industriekeramik Düsseldorf Gmbh | Board for a protection system for a boiler tube wall and protection system for a boiler tube wall |
EP1336808A1 (en) * | 2002-02-15 | 2003-08-20 | Jünger + Gräter GmbH Feuerfestbau | Refractory material heat shield |
DE20316213U1 (en) * | 2003-10-22 | 2005-03-03 | Mokesys Ag | Solid material incineration unit with an incineration space with an outlet for exit of incineration waste gas,first and second flues useful for incineration of refuse, e.g. domestic waste |
DE10361104A1 (en) * | 2003-12-22 | 2005-07-28 | Saint-Gobain Industriekeramik Düsseldorf Gmbh | Heat protection body |
WO2009095244A1 (en) * | 2008-01-31 | 2009-08-06 | Karrena Gmbh | Lining of a furnace chamber |
WO2016050830A1 (en) * | 2014-10-03 | 2016-04-07 | Calderys France | Refractory system for lining the interior walls of high-temperature furnaces or boilers and method of protection |
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CH336151A (en) * | 1955-11-11 | 1959-02-15 | L Von Roll Ag | Oven for burning low-quality fuels, such as household waste |
US3828735A (en) * | 1973-01-15 | 1974-08-13 | C & H Combustion Co | Boiler tube shielding wall |
US4768447A (en) | 1985-12-23 | 1988-09-06 | Compagnie D'exploitation Thermique-Cometherm | Fire-brick for refractory protection walls of ovens, furnaces and combustion chambers |
DE9016206U1 (en) * | 1990-11-29 | 1991-02-14 | Jünger & Gräter GmbH & Co KG, 6830 Schwetzingen | Arrangement of a refractory lining using plates covering steel pipe units, whereby the plates are fixed by means of brackets welded to the pipe fins connecting the pipes |
US5243801A (en) | 1992-02-20 | 1993-09-14 | The Babcock & Wilcox Company | Refractory tile for heat exchanger protection |
EP0656508A2 (en) * | 1993-12-03 | 1995-06-07 | Wheelabrator Environmental Systems Inc. | Furnace tile and expansion joint |
US5431020A (en) * | 1990-11-29 | 1995-07-11 | Siemens Aktiengesellschaft | Ceramic heat shield on a load-bearing structure |
WO1997009577A1 (en) | 1995-09-05 | 1997-03-13 | Zampell Advanced Refractory Technologies Inc. | Refractory tile, mounting device, and method for mounting |
EP0854321A1 (en) * | 1996-08-07 | 1998-07-22 | Mitsubishi Heavy Industries, Ltd. | Water pipe protecting refractory structure |
EP0895028A1 (en) * | 1997-07-28 | 1999-02-03 | Abb Research Ltd. | Ceramic lining |
-
2000
- 2000-03-17 WO PCT/US2000/007135 patent/WO2000057106A1/en active IP Right Grant
- 2000-03-17 AU AU36306/00A patent/AU3630600A/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CH336151A (en) * | 1955-11-11 | 1959-02-15 | L Von Roll Ag | Oven for burning low-quality fuels, such as household waste |
US3828735A (en) * | 1973-01-15 | 1974-08-13 | C & H Combustion Co | Boiler tube shielding wall |
US4768447A (en) | 1985-12-23 | 1988-09-06 | Compagnie D'exploitation Thermique-Cometherm | Fire-brick for refractory protection walls of ovens, furnaces and combustion chambers |
DE9016206U1 (en) * | 1990-11-29 | 1991-02-14 | Jünger & Gräter GmbH & Co KG, 6830 Schwetzingen | Arrangement of a refractory lining using plates covering steel pipe units, whereby the plates are fixed by means of brackets welded to the pipe fins connecting the pipes |
US5431020A (en) * | 1990-11-29 | 1995-07-11 | Siemens Aktiengesellschaft | Ceramic heat shield on a load-bearing structure |
US5243801A (en) | 1992-02-20 | 1993-09-14 | The Babcock & Wilcox Company | Refractory tile for heat exchanger protection |
EP0656508A2 (en) * | 1993-12-03 | 1995-06-07 | Wheelabrator Environmental Systems Inc. | Furnace tile and expansion joint |
WO1997009577A1 (en) | 1995-09-05 | 1997-03-13 | Zampell Advanced Refractory Technologies Inc. | Refractory tile, mounting device, and method for mounting |
EP0854321A1 (en) * | 1996-08-07 | 1998-07-22 | Mitsubishi Heavy Industries, Ltd. | Water pipe protecting refractory structure |
EP0895028A1 (en) * | 1997-07-28 | 1999-02-03 | Abb Research Ltd. | Ceramic lining |
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EP1236954A1 (en) * | 2001-03-02 | 2002-09-04 | Karrena GmbH | Plates on boiler tube walls |
WO2003067154A1 (en) * | 2002-02-02 | 2003-08-14 | Saint-Gobain Industriekeramik Düsseldorf Gmbh | Board for a protection system for a boiler tube wall and protection system for a boiler tube wall |
EP1336808A1 (en) * | 2002-02-15 | 2003-08-20 | Jünger + Gräter GmbH Feuerfestbau | Refractory material heat shield |
DE20316213U1 (en) * | 2003-10-22 | 2005-03-03 | Mokesys Ag | Solid material incineration unit with an incineration space with an outlet for exit of incineration waste gas,first and second flues useful for incineration of refuse, e.g. domestic waste |
DE10361104A1 (en) * | 2003-12-22 | 2005-07-28 | Saint-Gobain Industriekeramik Düsseldorf Gmbh | Heat protection body |
DE10361104B4 (en) * | 2003-12-22 | 2005-10-06 | Saint-Gobain Industriekeramik Düsseldorf Gmbh | Heat protection body |
WO2009095244A1 (en) * | 2008-01-31 | 2009-08-06 | Karrena Gmbh | Lining of a furnace chamber |
WO2016050830A1 (en) * | 2014-10-03 | 2016-04-07 | Calderys France | Refractory system for lining the interior walls of high-temperature furnaces or boilers and method of protection |
US10495304B2 (en) | 2014-10-03 | 2019-12-03 | Imertech Sas | Refractory system for lining the interior walls of high-temperature furnaces or boilers and method of protection |
AU2015326919B2 (en) * | 2014-10-03 | 2020-05-21 | Imertech Sas | Refractory system for lining the interior walls of high-temperature furnaces or boilers and method of protection |
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