CN210046244U - Water-cooled wall assembling tool - Google Patents
Water-cooled wall assembling tool Download PDFInfo
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- CN210046244U CN210046244U CN201920383466.2U CN201920383466U CN210046244U CN 210046244 U CN210046244 U CN 210046244U CN 201920383466 U CN201920383466 U CN 201920383466U CN 210046244 U CN210046244 U CN 210046244U
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Abstract
The utility model discloses a water-cooled wall assembly tool, which belongs to the field of water-cooled wall manufacturing and assembly and is mainly realized by slow rotation of a plurality of supports and welding of convection tubes after the supports are placed on the supports, the supports are driven by a mandrel to rotate, both ends of the mandrel are connected with a turntable, the turntable is fixed on a support platform, the mandrel is formed by connecting a plurality of sections of cylinders through concave-convex flanges, the supports are connected to the outside of the mandrel side by side along the axial direction of the mandrel and are connected into a whole through a positioning tube to concentrically rotate, in the process of slow rotation, a crown block is used for assembling a water wall convection tube from top to bottom and then is fixed by a lead wire, after the 1/4-circumference assembly is completed, the initial position is fixed by spot welding by using the positioning ring outside the convection tube, after the complete assembly is completed, the fins are welded, the assembly tool is removed, and then all convection tubes are secured with the fitting pieces. The utility model discloses guarantee the whole preparation precision of water-cooling wall, realize the standardization of water-cooling wall part.
Description
Technical Field
The utility model relates to a water-cooled wall preparation assembly field specifically is a water-cooled wall erecting tool, is applicable to the assembly of water-cooled wall convection tube.
Background
The cylindrical membrane type water-cooled wall has good sealing performance, the air leakage quantity of the hearth is greatly reduced, the temperature of the furnace wall is greatly reduced, the heat efficiency of the boiler is improved, the furnace wall does not need refractory bricks, only heat insulation materials are needed, compared with the conventional heavy furnace wall, the weight can be reduced by 60-70%, the heat storage quantity of the furnace wall is reduced by 80%, the start-stop time is shortened, the fuel consumption is reduced, the load of a hearth steel frame is greatly reduced, refractory materials and steel are saved, and the cylindrical membrane type water-cooled wall is widely applied to novel and large boilers. But the cylindrical water-cooled wall also has the characteristics of high manufacturing difficulty, complex processing technology, long manufacturing period, high manufacturing precision requirement, high cost and the like. There is therefore a need for a tool and method that facilitates assembly of waterwalls to address the above-mentioned problems.
Disclosure of Invention
The utility model discloses a solve diaphragm type water-cooling wall preparation cycle length, the problem that the preparation precision is low, the cost of manufacture is high, provide a water-cooling wall erecting tool.
The utility model discloses a realize through following technical scheme: a water-cooled wall assembling tool comprises two supporting platforms, wherein each supporting platform is fixedly provided with a rotary table, a mandrel is arranged between the two rotary tables, the mandrel is in a cylindrical shape, and the mandrel is formed by connecting a plurality of sections of cylinders through concave-convex flanges; the outer side of the mandrel is provided with a plurality of supports side by side along the axis direction, the supports are perpendicular to the axial direction of the mandrel, the supports comprise two port supports and a plurality of middle supports, the two port supports are respectively positioned at two sides of the mandrel and close to the rotary table, the middle supports are uniformly distributed at the middle section of the mandrel, and the thickness of the port supports is greater than that of the middle supports. The port support and the middle support are both annular and are formed by connecting four fan-shaped annular plates through a support connecting plate, a positioning pipe hole is formed in the middle of each fan-shaped annular plate at the same position, the outer circumferences of the port support and the middle support are convection pipe positioning grooves, the convection pipe positioning grooves are semicircular, and the diameters of the convection pipe positioning grooves are the outer diameters of convection pipes; flange connecting pieces are arranged on the inner circumference at the positions corresponding to the pipe holes of the four positioning pipes; the flange connecting piece is connected with a fixed connection part flange on the mandrel through a connection short section and rotates concentrically with the mandrel, an adjusting gasket for adjusting concentricity is further arranged between the flange at the fixed connection part and the connection short section, and the connection short section is formed by fixedly connecting a pipe and two flanges at two ends of the pipe. The port supports and each of middle support is connected through four registration arms between, and every registration arm passes each and supports corresponding registration arm tube hole, the outside of a plurality of supports still is equipped with a convection tube outside holding ring, the cross-section arc length of convection tube outside holding ring is 1/4 girths, axial length is 200mm ~500mm, thickness is 25mm ~30mm, the convection tube outside holding ring is located the outside middle section of mandrel. The water-cooled wall assembling tool further comprises a reference piece, wherein the reference piece is a reference for multiple supports and comprises a reference convection pipe hole, a reference support connecting plate hole and a reference positioning pipe hole, the reference piece is formed by assembling four fan-shaped annular plates, the reference convection pipe hole is formed in the outer circumference of each fan-shaped annular plate, the reference positioning pipe hole is formed in the middle of the outer circumference of each fan-shaped annular plate, the reference support connecting plate holes are formed in the two side edges of each fan-shaped annular plate; two convection tube templates are arranged on the outer sides of the port supports on the two sides, and the convection tube templates have the same structure as the reference part.
The utility model relates to a water-cooling wall assembly invents, mainly through the slow rotation of a plurality of supports and the welding of convection tube after placing on supporting realize, a plurality of supports are rotatory through the mandrel drive, and the both ends of mandrel are connected with the revolving stage, and the revolving stage is fixed on supporting platform, and the mandrel is formed by connecting through unsmooth flange by multisection drum. The plurality of supports are connected to the outside of the mandrel side by side along the axial direction of the mandrel, in order to ensure that the support force at the two ends is large enough, the supports positioned at the two ends of the mandrel are port supports, the middle support positioned on the middle section of the mandrel is a middle support, and the port supports have larger thickness and higher strength than the middle support; all the supports are annular and are processed according to a reference part, a plurality of supports are sleeved outside the mandrel, all the port supports and the middle supports are annular and are formed by connecting four fan-shaped annular plates through support connecting plates, the same position in the middle of each fan-shaped annular plate is provided with a positioning pipe hole for connecting all the port supports and the middle supports, the outer circumferences of the port supports and the middle supports are convection pipe positioning grooves, the convection pipe positioning grooves are semicircular, the diameters of the convection pipes are the outer diameters of the convection pipes and are used for assembling the convection pipes, connecting parts are arranged at the corresponding positions of the inner circumferences and the four positioning pipe holes, the plurality of supports are connected with the fixed connection parts on the mandrel through the connecting parts and the connecting short sections, and the concentric arrangement with the mandrel can also be realized; the plurality of supports are connected through four positioning pipes, the positioning pipes penetrate through the holes of the positioning pipes corresponding to the supports, and the positioning pipes connect the supports into a whole, so that the plurality of supports synchronously rotate, and the synchronous rotation of the convection pipes is ensured; an adjusting gasket for adjusting concentricity is also arranged between the flange at the fixed connection position and the connecting short section; the connecting short section is formed by fixedly connecting a pipe and two flanges at two ends of the pipe. And the outer sides of the plurality of supports are also provided with an outer convection tube positioning ring, and after the assembly of the convection tubes with the number of quarter of the circumference is completed, the outer convection tube positioning ring and the convection tubes are used for spot welding. The cross-section arc length of the convection tube outer positioning ring is 1/4 circumferences, the axial length is 200 mm-500 mm, the thickness is 25 mm-30 mm, the convection tube outer positioning ring is located in the middle section of the outer portion of the mandrel and used for preliminarily fixing the assembled convection tube, the convection tube outer positioning ring needs to be high in strength due to the fact that the convection tube is long and heavy, and the thickness and the length need to be guaranteed. The benchmark piece is the benchmark of a plurality of supports, including benchmark convection tube hole, the benchmark supports link plate hole and benchmark location pipe hole, the benchmark piece is formed by four fan-shaped annular plates equipment, be equipped with benchmark convection tube hole on every fan-shaped annular plate outer circumference, the middle part same position is equipped with benchmark location pipe hole, fan-shaped both sides limit department is equipped with the benchmark and supports the link plate hole, every supports all need set up according to all porose positions on the benchmark piece, the machining precision of all supports has been guaranteed, the outside that the port of both sides supported still is equipped with two convection current pipe masterplates in addition, convection current pipe masterplates are the same with benchmark piece structure, the purpose is in order to make the convection current pipe can penetrate fixedly.
The utility model discloses a water-cooling wall assembly method does: the method comprises the following steps:
1) manufacturing a water-cooled wall assembling tool, wherein the water-cooled wall assembling tool comprises a port support, a middle support, a mandrel, a connecting short section and a supporting connecting plate; the port support, the middle support and the reference piece are divided into four pieces for blanking, after the four pieces are spot-welded, the support connecting plate is spot-welded at each split position, the position is marked, the whole matched drill comprises a positioning pipe hole, a support connecting plate hole and a convection pipe positioning groove, the positioning pipe hole is in clearance fit with the positioning pipe, a bolt, the support connecting plate and each support, the maximum clearance is not more than 0.7mm, the external positioning ring of the convection pipe is machined by utilizing a lathe, a welding height space of a fin and a convection pipe and the fin is required to be reserved in the convection pipe positioning groove of the middle support, the port support piece is lathed to 1/2 of the diameter of the convection pipe hole, and the convection pipe hole of the; the mandrel is processed in sections, and the middle part is connected by adopting a concave-convex flange; assembling and welding the connecting short sections, and finish machining two end faces of the flange to ensure that the parallelism deviation is less than or equal to 0.5 mm;
2) adjusting the levelness of the mandrel, placing the mandrel on two rotary tables, and roughly adjusting the horizontal deviation of the center of the mandrel by adjusting the supporting platform, wherein the levelness deviation is less than or equal to 3 mm;
3) connecting the port support and the middle support with a fixed connection flange of the mandrel through a connecting short section, and sequentially penetrating the positioning pipe through the pipe holes of the positioning pipes of the port support and the middle support to form a whole;
4) adjusting concentricity, namely adjusting the concentricity of each support and the mandrel by increasing or decreasing adjusting gaskets;
5) assembling convection tubes, namely assembling the convection tubes at an assembling position from top to bottom by using a crown block, placing the convection tubes into convection tube grooves on a middle support and a port support, fixing left and right tube ends of each convection tube on a positioning tube by using lead wires after the convection tubes are placed, and fixing the convection tubes on the positioning tube by using the lead wires at intervals of 1400-1500 mm along the axial direction of the convection tubes;
6) inserting the end of the convection tube into a reference convection tube hole of a reference piece, wherein the extension length of the two ends is less than 15 mm;
7) after 1/4 of the whole perimeter of the convection tube is assembled, spot welding the convection tube outer positioning ring processed by the reference piece and the convection tube, removing a lead wire after spot welding, and reserving a fin and a welding height space of the convection tube and the fin in the convection tube outer positioning ring;
8) rotating the plurality of supports with the turntable, then continuing ⑦ placing the convection tube according to step, then spot welding and reserving space;
9) assembling the fins in the water-cooled wall, and performing sealing welding on the inner part and the outer part of the water-cooled wall at flat welding positions;
10) removing the support connecting plate, the plurality of supports, the positioning pipes and the mandrel, and processing the allowance of the end part of the water-cooled wall by using a boring and milling machine;
11) and fitting pieces at two ends of the water-cooled wall are assembled, and convection pipe holes on the fitting pieces are the same as reference convection pipe holes on the reference piece.
Compared with the prior art the utility model discloses following beneficial effect has: the utility model provides a water-cooling wall erecting tool, all bolt holes, registration arm tube hole and convection tube hole position all adopt same benchmark piece, the convection tube hole diameter size homogeneous phase in all positions increases the registration arm simultaneously, and the fit-up gap is not more than 0.7mm, and all support piece adopt the bolt-up, do not have welding deformation, not only install and remove labour saving and time saving, be convenient for reuse many times moreover, not only reduce the frock cost, guarantee respectively to support the convection tube hole positional deviation on the frock moreover, thereby guarantee the whole preparation precision of water-cooling wall. Convection tube templates made of the same reference part are added at two ends of the water-cooled wall, so that standardization of the water-cooled wall part is realized, and the interchangeability requirement is met.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1 according to the present invention.
Fig. 3 is an enlarged view of fig. 1 at point i.
Fig. 4 is an enlarged view of fig. 1 at point ii.
Fig. 5 is a schematic structural diagram of the reference member of the present invention.
The figures are labeled as follows: 1-a turntable, 2-a support platform, 3-a port support, 4-a positioning pipe, 5-a middle support, 6-a reinforcing rib plate, 7-a mandrel, 8-a connecting short section, 9-a support connecting plate, 10-a convection tube outer positioning ring, 11-a positioning pipe hole, 12-a flange connecting piece, 13-a regulating gasket, 14-a reference piece, 16-a convection tube and 17-a convection tube positioning groove.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
A water wall assembly tool, as shown in fig. 1-5: the device comprises two supporting platforms 2, wherein a rotary table 1 is fixed on each supporting platform 2, a mandrel 7 is arranged between the two rotary tables 1, the mandrel 7 is in a cylindrical shape, and the mandrel 7 is formed by connecting a plurality of sections of cylinders through concave-convex flanges; the outer side of the mandrel 7 is provided with a plurality of supports side by side along the axis direction, the supports are perpendicular to the axial direction of the mandrel 7, the supports comprise two port supports 3 and a plurality of middle supports 5, the two port supports 3 are respectively positioned at two sides of the mandrel 7 and close to the turntable 1, the middle supports 5 are uniformly distributed at the middle section of the mandrel 7, and the thickness of the port supports 3 is greater than that of the middle supports 5. The port support 3 and the middle support 5 are both annular and formed by connecting four fan-shaped annular plates through a support connecting plate 9, the same position in the middle of each fan-shaped annular plate is provided with a positioning pipe hole 11, the outer circumferences of the port support 3 and the middle support 5 are convection pipe positioning grooves, the convection pipe positioning grooves are semicircular, and the diameters of the convection pipe positioning grooves are the outer diameters of convection pipes; the corresponding positions of the inner circumference and the four positioning pipe holes 11 are provided with flange connecting pieces 12; the flange connecting piece 12 is connected with a fixed connection part flange on the mandrel 7 through the connecting short section 8 and rotates concentrically with the mandrel 7, an adjusting gasket 13 for adjusting concentricity is further arranged between the flange at the fixed connection part and the connecting short section 8, and the connecting short section 8 is formed by fixedly connecting a pipe and two flanges at two ends of the pipe. The port supports 3 and each of middle support 5 and supports between connect through four registration arms 4, and every registration arm 4 passes each and supports corresponding registration arm tube hole 11, the outside of a plurality of supports still is equipped with a convection tube outside holding ring 10, the cross-section arc length of convection tube outside holding ring 10 is 1/4 girths, axial length is 200mm ~500mm, thickness is 25mm ~30mm, convection tube outside holding ring 10 is located the outside middle section of mandrel 7. The water-cooled wall assembling tool further comprises a reference part 14, the reference part 14 is a reference for multiple supports and comprises a reference convection pipe hole, a reference support connecting plate hole and a reference positioning pipe hole, the reference part 14 is formed by assembling four fan-shaped annular plates, the reference convection pipe hole is formed in the outer circumference of each fan-shaped annular plate, the reference positioning pipe hole is formed in the same position of the middle of each fan-shaped annular plate, and the reference support connecting plate holes are formed in the positions of two fan-shaped side edges. Two convection pipe templates are arranged on the outer sides of the port supports 3 on the two sides, and the structures of the convection pipe templates are the same as those of the reference piece 14.
The following scheme is also adopted in the embodiment: the connecting piece 12 is also provided with a reinforcing rib plate 6; the positioning tube 4 is in clearance fit with the tube hole of the positioning tube, the bolt is in clearance fit with the support connecting plate 9, and the convection tube 16 is in clearance fit with the positioning groove 17 of the convection tube, and the maximum clearance is not more than 0.7 mm.
The specific operation of the embodiment is that the method for assembling the water wall comprises the following steps:
1) manufacturing a water-cooled wall assembling tool, wherein the water-cooled wall assembling tool comprises a port support 3, a middle support 5, a mandrel 7, a connecting short section 8 and a supporting connecting plate 9; the port support 3, the middle support 5 and the reference piece 14 are divided into four pieces for blanking, after the four pieces are spot-welded, the support connecting plate 9 is spot-welded at each split position, the orientation is marked, and the whole drill is matched, wherein the drill comprises a positioning pipe hole 11, a support connecting plate hole and a convection pipe positioning groove 17, the positioning pipe hole 11 and the positioning pipe 4, a bolt and the support connecting plate 9 and each support are in clearance fit, the maximum clearance is not more than 0.7mm, the outer positioning ring 10 of the convection pipe is machined by a lathe, the welding height space of a fin and a convection pipe and the fin is required to be reserved in the convection pipe positioning groove of the middle support 5, the port support 3 pieces are lathed to 1/2 of the diameter of the convection pipe hole, and the convection pipe; the mandrel 7 is processed in sections, and the middle is connected by a concave-convex flange; assembling and welding the connecting short sections 8, and finishing two end faces of the flange to ensure that the parallelism deviation is less than or equal to 0.5 mm;
2) adjusting the levelness of the mandrel 7, placing the mandrel 7 on the two rotary tables 1, and roughly adjusting the central horizontal deviation of the mandrel 7 by adjusting the supporting platform 2, wherein the levelness deviation is less than or equal to 3 mm;
3) the port support 3 and the middle support 5 are connected with a fixed connection flange of the mandrel 7 through a connecting short section 8, and the positioning pipe 4 sequentially passes through the positioning pipe holes 11 of the port support 3 and the middle support 5 to form a whole;
4) adjusting the concentricity, namely adjusting the concentricity of each support and the mandrel 7 by increasing or decreasing the adjusting gaskets 13;
5) assembling convection tubes, namely assembling the convection tubes at an assembling position from top to bottom by using a crown block, putting the convection tubes into convection tube grooves on a middle support 5 and a port support 3, fixing left and right tube ends of each convection tube on a positioning tube 4 by using a lead wire after the convection tubes are placed, and fixing the convection tubes on the positioning tube 4 by using the lead wire at intervals of 1400-1500 mm along the axial direction of the convection tubes;
6) the pipe end of the convection pipe is inserted into the hole of the reference convection pipe of the reference piece 14, and the extension length of the two ends is less than 15 mm;
7) after 1/4 of the whole circumference of the convection tube is assembled, spot welding the convection tube external positioning ring 10 processed by the reference piece 14 and the convection tube, removing a lead wire after the spot welding is completed, and reserving a fin and a welding height space of the convection tube and the fin in the convection tube external positioning ring 10;
8) rotating a plurality of supports by using the rotary table 1, then continuing to step 7) to place the convection tube 16, and then performing spot welding and reserving space;
9) assembling the fins in the water-cooled wall, and performing sealing welding on the inner part and the outer part of the water-cooled wall at flat welding positions;
10) dismantling the support connecting plate 9, the plurality of supports, the positioning pipes 4 and the mandrel 7, and processing the allowance of the end part of the water-cooled wall by using a boring and milling machine;
11) fitting pieces at both ends of the water wall are assembled, and convection pipe holes on the fitting pieces are the same as reference convection pipe holes on the reference piece 14.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A water-cooled wall erecting tool, characterized in that: the device comprises two supporting platforms (2), wherein a rotary table (1) is fixed on each supporting platform (2), a mandrel (7) is arranged between the two rotary tables (1), the mandrel (7) is cylindrical, and the mandrel (7) is formed by connecting a plurality of sections of cylinders through concave-convex flanges; the outer side of the mandrel (7) is provided with a plurality of supports side by side along the axis direction, the supports are all perpendicular to the axial direction of the mandrel (7), the supports comprise two port supports (3) and a plurality of middle supports (5), the two port supports (3) are respectively positioned at two sides of the mandrel (7) and close to the rotary table (1), the middle supports (5) are uniformly distributed at the middle section of the mandrel (7), and the thickness of the port supports (3) is larger than that of the middle supports (5);
the port support (3) and the middle support (5) are both annular and formed by connecting four fan-shaped annular plates through a support connecting plate (9), the middle of each fan-shaped annular plate is provided with a positioning pipe hole (11), the outer circumferences of the port support (3) and the middle support (5) are convection pipe positioning grooves (17), the convection pipe positioning grooves (17) are semicircular, and the diameters of the convection pipe positioning grooves are the outer diameters of convection pipes (16); the inner circumference is provided with flange connecting pieces (12) at the positions corresponding to the four positioning pipe holes (11); the flange connecting piece (12) is connected with a fixed connection part flange on the mandrel (7) through a connection short section (8) and rotates concentrically with the mandrel (7), an adjusting gasket (13) for adjusting concentricity is further arranged between the flange at the fixed connection part and the connection short section (8), and the connection short section (8) is formed by fixedly connecting a pipe and two flanges at two ends of the pipe;
the port supports (3) are connected with the supports of the middle support (5) through four positioning pipes (4), each positioning pipe (4) penetrates through a positioning pipe hole (11) corresponding to each support, a convection pipe outer positioning ring (10) is further arranged on the outer side of each support, the cross-section arc length of the convection pipe outer positioning ring (10) is 1/4 circumferences, the axial length of the convection pipe outer positioning ring is 200 mm-500 mm, the thickness of the convection pipe outer positioning ring is 25 mm-30 mm, and the convection pipe outer positioning ring (10) is located in the middle section of the outer portion of the mandrel (7);
the water-cooled wall assembling tool further comprises a reference piece (14), wherein the reference piece (14) is a reference for multiple supports and comprises a reference convection pipe hole, a reference support connecting plate hole and a reference positioning pipe hole, the reference piece (14) is formed by assembling four fan-shaped annular plates, the reference convection pipe hole is formed in the outer circumference of each fan-shaped annular plate, the reference positioning pipe hole is formed in the middle of each fan-shaped annular plate, and the reference support connecting plate holes are formed in the two side edges of each fan-shaped annular plate;
two convection pipe templates are arranged on the outer sides of the port supports (3) on the two sides, and the structures of the convection pipe templates are the same as those of the reference piece (14).
2. The water wall assembly tool of claim 1, wherein: and a reinforcing rib plate (6) is also arranged on the connecting piece (12).
3. The water wall assembly tool of claim 1 or 2, wherein: the cooperation of the positioning tube (4) and the hole of the positioning tube, the bolt and the supporting connecting plate (9), and the convection tube (16) and the positioning groove (17) of the convection tube are in clearance fit, and the maximum clearance is not more than 0.7 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920383466.2U CN210046244U (en) | 2019-03-25 | 2019-03-25 | Water-cooled wall assembling tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920383466.2U CN210046244U (en) | 2019-03-25 | 2019-03-25 | Water-cooled wall assembling tool |
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| CN210046244U true CN210046244U (en) | 2020-02-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066401A (en) * | 2020-09-19 | 2020-12-11 | 黄荣生 | Power plant boiler accessory forming method |
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2019
- 2019-03-25 CN CN201920383466.2U patent/CN210046244U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066401A (en) * | 2020-09-19 | 2020-12-11 | 黄荣生 | Power plant boiler accessory forming method |
| CN112066401B (en) * | 2020-09-19 | 2024-02-06 | 张家港华益特种设备有限公司 | Forming method of boiler accessories of power plant |
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