Finned tube type membrane water cooling wall and welding process thereof

Abstract

The invention belongs to the technical field of welding equipment, and particularly relates to a finned tube type membrane water cooling wall and a welding process thereof.The finned tube type membrane water cooling wall comprises a welding table and a welding mechanism, a flow guide table is arranged on the outer side of the welding table, side baffles are fixedly connected to the two ends of the top face of the flow guide table, and a slag collecting box is fixedly installed on the bottom face of the flow guide table; supporting columns are fixedly connected to the four corners of the outer wall of the flow guide table, the two limiting assemblies are symmetrically arranged relative to the welding table, the movable frame is slidably arranged on the side upper portion of the welding table, moving assemblies are arranged on the limiting assemblies, and dust blowing assemblies are arranged on the moving assemblies. The method has the advantages that the whole welding operation is simple, only a plurality of round steel pipes need to be placed on the welding table side by side, the round steel pipes do not need to be repeatedly placed in the welding process, the welding efficiency is improved, then the production and machining efficiency of the fin tube type membrane water wall is improved, and meanwhile the technical effects of cleaning welding slag and facilitating secondary machining are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to a fin tube type membrane water cooling wall and a welding process thereof. Background Art

[0002] The water-cooled wall is the main heat-receiving part of the boiler. It is composed of several rows of steel pipes distributed around the boiler furnace. Its interior is flowing water or steam, and the outside receives the heat from the flame of the boiler furnace. The finned tube membrane water-cooled wall is a whole tube screen composed of finned tubes welded together. High-temperature and high-pressure boilers mostly use finned tube membrane water-cooled walls.

[0003] When processing the fin tube type membrane water-cooled wall, it is necessary to use welding equipment to weld multiple fin tubes. Before welding, two fin tubes are butt-jointed and fixed, and then welded. After the welding of the two fin tubes is completed, another fin tube is placed until a specified number of fin tubes are welded together to complete the welding processing of the fin tube type membrane water-cooled wall. The entire welding operation is relatively cumbersome. During the welding process, the fin tubes need to be placed repeatedly and welded after the fin tubes are fixed, resulting in low welding efficiency, which affects the production and processing efficiency of the fin tube type membrane water-cooled wall. Summary of the invention

[0004] The invention discloses a fin tube type membrane water cooling wall and a welding process thereof, aiming to solve the technical problem that the whole welding operation is rather cumbersome, the fin tubes need to be repeatedly placed during the welding process, and the fin tubes need to be fixed before welding, resulting in low welding efficiency and affecting the production and processing efficiency of the fin tube type membrane water cooling wall.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The present invention proposes a fin tube type membrane water-cooled wall, comprising a tube panel, which is welded from multiple round steel tubes, both side outer walls of the round steel tubes are fixedly connected with fins, multiple round steel tubes are arranged in parallel, and the fins on two adjacent round steel tubes are welded together.

[0006] On the other hand, the present invention provides a welding process for the above-mentioned fin tube type membrane water-cooled wall, comprising the following steps: S1. Use a grinder to polish the fin tube to remove and clean oil, dirt, rust, etc.; S2, welding a plurality of fin tubes together using welding equipment; S3. Clean welding slag and debris, and repair weld defects; S4. After all welding work is completed, perform overall heat treatment; S5. Use ultrasound or X-ray to detect the weld.

[0007] On the other hand, the present invention provides welding equipment used in the welding process of the above-mentioned fin tube type membrane water-cooled wall, including a welding table and a welding mechanism, the welding mechanism is fixedly installed on the welding table, a plurality of slag discharge holes distributed in an array are opened inside the welding table, a plurality of the round steel pipes are placed side by side on the welding table, a guide table is arranged on the outside of the welding table, the guide table is fixedly connected to the outer wall of the welding table through a bracket, and side guards are fixedly connected to both ends of the top surface of the guide table, a slag collecting box is fixedly installed on the bottom surface of the guide table, and support columns are fixedly connected to the four corners of the outer wall of the guide table, two limit assemblies are movably arranged on the welding table, the two limit assemblies are symmetrically arranged about the welding table, the limit assembly includes a movable frame, the movable frame is slidably arranged on the upper side of the welding table, a movable assembly is arranged on the limit assembly, and a dust blowing assembly is arranged on the movable assembly.

[0008] By arranging a welding table, a slag discharge hole, a guide table, a side stopper, a slag collecting box, a support column, a limit assembly, a movable assembly and a dust blowing assembly, a plurality of round steel pipes are placed in parallel and fixed by adjusting the limit assembly and the movable assembly, and then the plurality of round steel pipes can be welded together. The whole welding operation is simple, and it is only necessary to place the plurality of round steel pipes in parallel on the welding table. There is no need to repeatedly place the round steel pipes during the welding process, thereby improving the welding efficiency, and then improving the production and processing efficiency of the fin tube type membrane water-cooled wall.

[0009] In a preferred solution, one side outer wall of the two movable frames is fixedly connected to a stepper motor, the power output shaft of the stepper motor is connected to a screw rod 1 through a coupling transmission, the end of the screw rod 1 away from the stepper motor is fixedly connected to a connecting rod 1, and the end of the connecting rod 1 away from the screw rod 1 is fixedly connected to a screw rod 2; a fixed sleeve is provided on the outer side of the slag discharge hole, a bearing is fixedly installed on the inner wall of the fixed sleeve, and the connecting rod 1 is rotatably arranged in the bearing, one side outer wall of the fixed sleeve is fixedly connected to a fixed seat, and both side outer walls of the fixed seat are fixedly connected to a limit plate 1, and the outer walls of the two limit plates 1 on the side away from each other are fixed to The inner walls at both ends of the middle round steel pipe are against each other; the surfaces of the screw rod 1 and the screw rod 2 are threadedly connected with a plurality of array-distributed movable seats 1, one side of the outer wall of the movable seat 1 is fixedly connected with a limit plate 2, the limit plates 2 on both sides of the connecting rod 1 are facing one side of the fixed seat, each limit plate 2 is against the inner wall of a round steel pipe, the inner wall of the movable frame is fixedly connected with a guide rod 1, the movable seat 1 is slidably set on the surface of the guide rod 1, and the fixed sleeve is fixedly connected to the surface of the guide rod 1; the movable assembly includes a dual-axis motor, the dual-axis motor is fixedly connected to one side of the top surface of the welding table, and one side of the output shaft of the dual-axis motor is passed through The coupling is connected with connecting rod 2, and the end of connecting rod 2 away from the double-axis motor is fixedly connected with screw rod 3, and the output shaft of the double-axis motor away from the connecting rod 2 is connected with screw rod 4 through the coupling. The surface of screw rod 4 is threadedly connected with moving seat 2, and the end of screw rod 4 away from the double-axis motor is fixedly connected with connecting rod 3, and the end of connecting rod 3 away from screw rod 4 is fixedly connected with screw rod 5. The surfaces of screw rod 3 and screw rod 5 are both threadedly connected with moving frame 1, and the two moving frames 1 are symmetrically arranged about the welding table, and the ends of the two moving frames 1 away from each other are fixedly connected to one end of the outer wall of the two movable frames, screw rod 3 and screw rod 5. The ends of the circumferential surfaces of the four and the screw rod five are both sleeved with shaft sleeves, the outer walls of the shaft sleeves are fixedly connected with guide rod two, movable seat two and movable frame one are both slidably arranged on the surface of guide rod two, both ends of the top surface on the side opposite to the dual-axis motor of the welding table are fixedly connected with fixed plates, the outer walls on the sides of the two fixed plates away from each other are fixedly connected with guide rod three, the surfaces of the two guide rods three are both slidably arranged with movable frames two, the two movable frames two are symmetrically arranged, and the ends of the two movable frames two away from each other are fixedly connected to one end of the outer walls of the two movable frames, and the movable frames one and two are symmetrically arranged about the welding table.

[0010] By setting a limit assembly and a moving assembly, the dual-axis motor is driven to make the two limit plates 1 abut against the inner wall of the middle round steel pipe, and the limit plate 2 enters the interior of the other multiple round steel pipes. The stepper motor is driven to make the limit plate 2 abut against the inner wall of the round steel pipe. Multiple parallel round steel pipes abut against each other to avoid gaps and ensure welding quality. Then welding can be carried out. The operation is simple and the welding efficiency is high.

[0011] - tached to said driving mechanism, a floating feeder mounted on 'said mechanism, means for raising and lowering the casing to allow the casing to be lowered to a 3.25 degree. The 4-axis direction of the transmission gear is adjusted to allow the casing to be easily moved. The transmission gear is directly connected to the base frame, and the upper and lower frames are connected with the transmission gear of the present invention.

[0012] By providing a dust blowing assembly, after welding is completed, connecting rod 2 is started to convert the guide frame into a horizontal state. In the process of driving the dual-axis motor, the air outlet pipe reciprocates along the top of the welding table, and the welding slag remaining on the round steel pipe and the surface of the welding table is blown into the slag collecting box for storage, thereby realizing the centralized recycling of the welding slag.

[0013] From the above, it can be seen that the welding equipment used in the welding process of the fin tube type membrane water-cooled wall provided by the present invention has the advantages of simple whole welding operation, and it is only necessary to place multiple round steel pipes side by side on the welding table, and there is no need to repeatedly place the round steel pipes during the welding process, thereby improving the welding efficiency, and then improving the production and processing efficiency of the fin tube type membrane water-cooled wall, while realizing the cleaning of welding slag and facilitating the technical effect of secondary processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a fin-tube membrane water-cooled wall structure proposed by the present invention.

[0015] Figure 2 The present invention provides a schematic diagram of the overall structure of a fin-tube membrane water-cooled wall welding device.

[0016] Figure 3 The figure is a side view of the overall structure of a fin-tube membrane water-cooled wall welding device proposed by the present invention.

[0017] Figure 4 The present invention provides a structural side view of the welding station of a fin-tube membrane water-cooled wall welding device.

[0018] Figure 5 The present invention provides a side structural cross-sectional view of a limiting component of a welding device for a fin-tube membrane water-cooled wall.

[0019] Figure 6 The present invention provides a side view of the structure of the moving components of a welding device for a fin-tube membrane water-cooled wall.

[0020] Figure 7 The present invention provides a side structural cross-sectional view of a welding station of a fin-tube type membrane water-cooled wall welding device.

[0021] Figure 8 The present invention provides a side structural cross-sectional view of a dust blowing assembly of a fin-tube type membrane water-cooled wall welding device.

[0022] In the figure: 1. round steel pipe; 2. fin; 3. welding table; 4. slag discharge hole; 5. guide table; 6. side stop; 7. slag collecting box; 8. support column; 9. limit assembly; 901. movable frame; 902. stepping motor; 903. screw rod 1; 904. connecting rod 1; 905. fixed sleeve; 906. fixed seat; 907. limit plate 1; 908. screw rod 2; 909. moving seat 1; 910. limit plate 2; 911. guide rod 1; 10. moving assembly; 1001. double-axis motor; 1002. connecting rod 2; 1003. screw rod 3; 1004. screw rod 4; 1005. moving seat 2; 1006 , connecting rod three; 1007, screw rod five; 1008, moving frame one; 1009, bushing; 1010, guide rod two; 1011, fixed plate; 1012, guide rod three; 1013, moving frame two; 11, dust blowing assembly; 1101, rotating frame; 1102, rotating motor; 1103, rotating rod; 1104, rotating seat; 1105, driving motor; 1106, rotating disk; 1107, eccentric rod; 1108, rotating plate; 1109, guide frame; 1110, guide rod four; 1111, sliding seat; 1112, fixed rod; 1113, blower; 1114, air outlet pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1 A fin tube type membrane water-cooled wall includes a tube panel, which is welded from multiple round steel tubes 1. Fins 2 are fixedly connected to the outer walls of both sides of the round steel tubes 1. Multiple round steel tubes 1 are arranged in parallel, and the fins 2 on two adjacent round steel tubes 1 are welded together.

[0025] A welding process for a fin tube type membrane water-cooled wall comprises the following steps: S1. Use a grinder to polish the fin tube to remove and clean oil, dirt, rust, etc.; S2, welding a plurality of fin tubes together using welding equipment; S3. Clean welding slag and debris, and repair weld defects; S4. After all welding work is completed, perform overall heat treatment; S5. Use ultrasound or X-ray to detect the weld.

[0026] The welding equipment of a fin-tube type membrane water-cooled wall disclosed in the present invention is mainly used in the scenario where the entire welding operation is relatively cumbersome, and the fin tubes need to be repeatedly placed and welded after the fin tubes are fixed during the welding process, resulting in low welding efficiency, which affects the production and processing efficiency of the fin-tube type membrane water-cooled wall.

[0027] Reference Figure 1-Figure 8 A welding device for a fin tube type membrane water-cooled wall comprises a welding platform 3 and a welding mechanism, wherein the welding mechanism is fixedly mounted on the welding platform 3, a plurality of array-distributed slag discharge holes 4 are provided inside the welding platform 3, a plurality of round steel pipes 1 are placed side by side on the welding platform 3, a guide platform 5 is arranged on the outside of the welding platform 3, the guide platform 5 is fixedly connected to the outer wall of the welding platform 3 through a bracket, and both ends of the top surface of the guide platform 5 are fixedly connected with side baffles 6, a slag collecting box 7 is fixedly mounted on the bottom surface of the guide platform 5, and support columns 8 are fixedly connected with the four corners of the outer wall of the guide platform 5, two limit assemblies 9 are movably arranged on the welding platform 3, the two limit assemblies 9 are symmetrically arranged about the welding platform 3, the limit assemblies 9 comprise a movable frame 901, the movable frame 901 is slidably arranged on the upper side of the welding platform 3, a moving assembly 10 is arranged on the limit assemblies 9, and a dust blowing assembly 11 is arranged on the moving assembly 10.

[0028] Specifically, before welding, multiple round steel pipes 1 are placed side by side on the welding table 3, the moving component 10 is adjusted to make the limiting component 9 move to one side of the round steel pipe 1, and then the limiting component 9 is adjusted to limit the multiple round steel pipes 1 at the same time, and then the multiple round steel pipes 1 can be welded together. The entire welding operation is simple, and it is only necessary to place the multiple round steel pipes 1 side by side on the welding table 3, and there is no need to repeatedly place the round steel pipes 1 during the welding process, thereby improving the welding efficiency, and then improving the production and processing efficiency of the fin tube type membrane water-cooled wall. After the welding is completed, the dust blowing component 11 is adjusted to rotate it to the top of the welding table 3, and after adjusting the limiting component 9 to separate from the round steel pipe 1, the moving component 10 is adjusted to make the limiting component 9 gradually move away from the round steel pipe 1. During the process of the limiting component 9 moving away from the round steel pipe 1, the dust blowing component 11 moves along the top of the welding table 3, generates wind force to the welding table 3, and blows the welding slag on the round steel pipe 1 and the welding table 3 from the guide table 5 into the slag collecting box 7 for storage, thereby realizing the centralized recovery and treatment of the welding slag.

[0029] It should be noted that the welding mechanism is not shown in the figure. It is a common welding module in existing welding equipment and will not be described in detail here.

[0030] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7In a preferred embodiment, the outer walls of one side of the two movable frames 901 are fixedly connected to a stepper motor 902, and the power output shaft of the stepper motor 902 is connected to a screw rod 903 through a coupling transmission, and the end of the screw rod 903 away from the stepper motor 902 is fixedly connected to a connecting rod 904, and the end of the connecting rod 904 away from the screw rod 903 is fixedly connected to a screw rod 2 908; a fixed sleeve 905 is provided on the outer side of the slag discharge hole 4, and a bearing is fixedly installed on the inner wall of the fixed sleeve 905, and the connecting rod 904 is rotatably arranged in the bearing, and the outer wall of one side of the fixed sleeve 905 is fixedly connected to a fixed seat 906, and the outer walls on both sides of the fixed seat 906 are fixedly connected to limited position Plate 1 907, the outer walls of the two limit plates 1 907 that are away from each other are against the inner walls of the two ends of the middle round steel tube 1; the surfaces of the screw rod 1 903 and the screw rod 2 908 are threadedly connected with a plurality of movable seats 1 909 distributed in an array, and the outer wall of one side of the movable seat 1 909 is fixedly connected with the limit plate 2 910, and the limit plates 2 910 on both sides of the connecting rod 1 904 are facing the side of the fixed seat 906, and each limit plate 2 910 is against the inner wall of a round steel tube 1, and the inner wall of the movable frame 901 is fixedly connected with a guide rod 1 911, and the movable seat 1 909 is slidably set on the surface of the guide rod 1 911, and the fixed sleeve 905 is fixedly connected to the surface of the guide rod 1 911;The moving assembly 10 includes a dual-axis motor 1001, which is fixedly connected to one side of the top surface of the welding table 3. The output shaft of one side of the dual-axis motor 1001 is connected to a connecting rod 2 1002 through a coupling transmission. The connecting rod 2 1002 is fixedly connected to a screw rod 3 1003 at one end away from the dual-axis motor 1001. The output shaft of the dual-axis motor 1001 away from the connecting rod 2 1002 is connected to a screw rod 4 1004 through a coupling transmission. The screw rod 4 1004 is connected to the connecting rod 1002 at one end. The surface of 004 ​​is threadedly connected with a movable seat 2 1005, and the end of the screw rod 4 1004 away from the dual-axis motor 1001 is fixedly connected with a connecting rod 3 1006, and the end of the connecting rod 3 1006 away from the screw rod 4 1004 is fixedly connected with a screw rod 5 1007, and the surfaces of the screw rods 3 1003 and the screw rod 5 1007 are both threadedly connected with a movable frame 1008, and the two movable frames 1008 are symmetrically arranged about the welding table 3, and the two movable frames 1008 are symmetrically arranged. One end away from each other is fixedly connected to one end of the outer wall of the two movable frames 901, and the ends of the circumferential surfaces of the screw rods 3 1003, 4 screw rods 1004 and 5 screw rods 1007 are sleeved with shaft sleeves 1009, and the outer wall of the shaft sleeve 1009 is fixedly connected to the guide rod 2 1010, and the movable seat 2 1005 and the movable frame 1 1008 are both slidably arranged on the surface of the guide rod 2 1010, and the two ends of the top surface of the welding table 3 opposite to the dual-axis motor 1001 are fixedly connected to the fixed plate 1011, and the outer walls of the two fixed plates 1011 away from each other are fixedly connected to the guide rod 3 1012, and the surfaces of the two guide rods 3 1012 are slidably arranged with the movable frame 2 1013, and the two movable frames 2 1013 are symmetrically arranged, and the ends of the two movable frames 2 1013 away from each other are fixedly connected to one end of the outer wall of the two movable frames 901, and the movable frame 1 1008 and the movable frame 2 1013 are symmetrically arranged about the welding table 3. ;

[0031] Specifically, after placing a plurality of round steel tubes 1 in parallel, the middle round steel tube 1 is located between the fixed seats 906 on both sides, and the dual-axis motor 1001 is driven to make the screw rod 3 1003, the screw rod 4 1004 and the screw rod 5 1007 rotate synchronously, and the two moving frames 1008 drive the two movable frames 901 to move toward one side of the round steel tube 1, so that the fixed seat 906 enters the interior of the middle round steel tube 1, and the two limit plates 1 907 are against the inner wall of the middle round steel tube 1, and the limit plate 2 910 enters the interior of the other multiple round steel tubes 1, and then the stepper motor 902 is driven to make the screw rod 1 903 and the screw rod 2 908 rotate synchronously, and the moving seat 1 909 on the screw rod 1 903 and the screw rod 2 908 drives the limit plate 2 910 moves to make the limit plate 2 910 abut against the inner wall of the round steel tube 1, and at the same time make multiple parallel round steel tubes 1 abut against each other to avoid gaps and ensure welding quality, and then welding can be carried out. After welding is completed, the stepper motor 902 is reversely driven to make the limit plate 2 910 separate from the round steel tube 1, and then the dual-axis motor 1001 is reversely driven to make the movable frame 1008 drive the movable frame 901 away from the round steel tube 1, so that the tube screen formed after welding can be removed. The whole welding operation is simple, and it is only necessary to place multiple round steel tubes 1 side by side on the welding table 3. There is no need to repeatedly place the round steel tubes 1 during the welding process, which improves the welding efficiency and then improves the production and processing efficiency of the fin tube type membrane water-cooled wall.

[0032] It should be noted that the thread structures of the screw rod 1 903 and the screw rod 2 908 are in opposite directions. When the stepping motor 902 is driven, the screw rod 1 903 and the moving seat 1 909 on the screw rod 2 908 move in opposite directions. The thread structures of screw rod three 1003 and screw rod five 1007 are in opposite directions. When the dual-axis motor 1001 is driven, the two moving frames 1008 move in opposite directions. The thread pitch of screw rod three 1003 and screw rod five 1007 is the same, and the thread pitch of screw rod three 1003, screw rod five 1007 and screw rod four 1004 is different. When the movable frame one 1008 moves to the maximum displacement distance, the movable seat two 1005 also moves to the maximum displacement distance. When the movable frame one 1008 is at the minimum displacement distance, the movable seat two 1005 is also at the minimum displacement distance.

[0033] Reference Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 8In a preferred embodiment, the dust blowing assembly 11 includes a rotating frame 1101, which is fixedly connected to the outer wall of the movable seat 1005, and the outer wall of the dual-axis motor 1001 is fixedly connected to the rotating motor 1102, and the power output shaft of the rotating motor 1102 is connected to the rotating rod 1103 through a coupling, and the outer wall of the rotating rod 1103 is fixedly connected to the rotating seat 1104; the top surface of the rotating seat 1104 is fixedly connected to the driving motor 1105, and the power output shaft of the driving motor 1105 is connected to the rotating disk 1106 through a coupling, and one end of the top surface of the rotating disk 1106 is fixedly connected to the eccentric rod 1107, and the surface of the eccentric rod 1107 is rotatably provided with a rotating plate 1108 The end of the rotating seat 1104 away from the rotating frame 1101 is fixedly connected to the guide frame 1109, and the inner walls on both sides of the guide frame 1109 are fixedly connected to the guide rods 1110. The surface of the guide rods 1110 is slidably provided with a sliding seat 1111, and the middle of the top surface of the sliding seat 1111 is fixedly connected to a fixed rod 1112. The end of the rotating plate 1108 away from the eccentric rod 1107 is rotatably set on the surface of the fixed rod 1112, and the inner ends of the sliding seat 1111 are fixedly installed with blowers 1113, and the output end of the blower 1113 is fixedly connected to an air outlet pipe 1114. The two air outlet pipes 1114 are symmetrically arranged about the sliding seat 1111, and the output direction of the air outlet pipe 1114 is toward the welding table 3.

[0034] Specifically, after welding is completed, the connecting rod 2 1002 is started to convert the guide frame 1109 from a vertical state to a horizontal state, and the air outlet duct 1114 is rotated to the top of the welding table 3. In the process of driving the dual-axis motor 1001, the air outlet duct 1114 moves accordingly, and the driving motor 1105 is started at the same time to rotate the rotating disk 1106, driving the rotating plate 1108 to rotate, so that the sliding seat 1111 slides back and forth along the surface of the guide rod 4 1110, and then the air outlet duct 1114 is reciprocated along the top of the welding table 3, and the blower 1113 is turned on to generate wind force through the air outlet duct 1114 to the round steel pipe 1 and the welding table 3, and the welding slag remaining on the surface of the two is blown into the slag collecting box 7 for storage, so as to realize the centralized recycling of the welding slag.

[0035] Working principle: After placing multiple round steel tubes 1 in parallel, the middle round steel tube 1 is between the fixed seats 906 on both sides, driving the dual-axis motor 1001 to make the screw rod 3 1003, the screw rod 4 1004 and the screw rod 5 1007 rotate synchronously, and the two moving frames 1008 drive the two movable frames 901 to move toward one side of the round steel tube 1, so that the fixed seat 906 enters the middle round steel tube 1, and the two limit plates 1 907 are against the inner wall of the middle round steel tube 1, and the limit plate 2 910 enters the other multiple round steel tubes 1, and then The stepper motor 902 is driven to make the screw rod 1 903 and the screw rod 2 908 rotate synchronously, and the movable seat 1 909 on the screw rod 1 903 and the screw rod 2 908 drives the limit plate 2 910 to move, so that the limit plate 2 910 is against the inner wall of the round steel pipe 1, and at the same time, multiple parallel round steel pipes 1 are against each other to avoid gaps and ensure welding quality, and then welding can be carried out. After welding is completed, the stepper motor 902 is reversely driven to make the limit plate 2 910 separate from the round steel pipe 1, and then the dual-axis motor 1001 is reversely driven to make the movable frame 10 08 drives the movable frame 901 away from the round steel pipe 1, and the tube screen formed after welding can be removed. The whole welding operation is simple. It only needs to place multiple round steel pipes 1 side by side on the welding table 3. There is no need to repeatedly place the round steel pipes 1 during the welding process, which improves the welding efficiency and further improves the production and processing efficiency of the fin tube type membrane water-cooled wall. After the welding is completed, the connecting rod 1002 is started to convert the guide frame 1109 from a vertical state to a horizontal state, and the air outlet pipe 1114 is rotated to the top of the welding table 3. When the dual-axis motor 1 is driven, the guide frame 1109 is rotated to the top of the welding table 3. During the process of 001, the air outlet duct 1114 moves accordingly, and the driving motor 1105 is started to rotate the rotating disk 1106, thereby driving the rotating plate 1108 to rotate, so that the sliding seat 1111 slides back and forth along the surface of the guide rod 1110, and then the air outlet duct 1114 reciprocates along the top of the welding table 3. The blower 1113 is turned on to generate wind force through the air outlet duct 1114 to the round steel pipe 1 and the welding table 3, and the welding slag remaining on the surface of the two is blown into the slag collecting box 7 for storage, so as to realize the centralized recycling of the welding slag.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A finned tube type membrane water-cooled wall, comprising a tube panel, wherein the tube panel is welded from a plurality of round steel tubes (1), characterized in that: Fins (2) are fixedly connected to the outer walls of both sides of the circular steel tube (1); a plurality of circular steel tubes (1) are arranged in parallel, and the fins (2) on two adjacent circular steel tubes (1) are welded together.

2. A welding process for a fin tube type membrane water-cooled wall, characterized in that: The following steps are involved: S1. Use a grinder to polish the fin tube to remove and clean oil, dirt, rust, etc.; S2, welding a plurality of fin tubes together using welding equipment; S3. Clean welding slag and debris, and repair weld defects; S4. After all welding work is completed, carry out overall heat treatment; S5. Use ultrasound or X-ray to detect the weld.

3. The welding equipment used in the welding process of the fin tube type membrane water-cooled wall according to claim 2 is characterized in that: The welding equipment comprises a welding table (3) and a welding mechanism, wherein the welding mechanism is fixedly mounted on the welding table (3), a plurality of slag discharge holes (4) arranged in an array are provided inside the welding table (3), a plurality of round steel pipes (1) are placed side by side on the welding table (3), a guide table (5) is arranged outside the welding table (3), the guide table (5) is fixedly connected to the outer wall of the welding table (3) through a bracket, and side guards (6) are fixedly connected to the top surfaces of the guide tables (5), and the bottom surfaces of the guide tables (5) are fixedly connected to the bottom surfaces of the guide tables (5). A slag collecting box (7) is fixedly installed, and support columns (8) are fixedly connected to the four corners of the outer wall of the guide platform (5). Two limit assemblies (9) are movably arranged on the welding platform (3), and the two limit assemblies (9) are symmetrically arranged with respect to the welding platform (3). The limit assemblies (9) include a movable frame (901), and the movable frame (901) is slidably arranged on the upper side of the welding platform (3). A movable assembly (10) is arranged on the limit assemblies (9), and a dust blowing assembly (11) is arranged on the movable assembly (10).

4. The welding equipment for fin tube type membrane water wall according to claim 3, characterized in that: One side outer wall of the two movable frames (901) is fixedly connected to a stepper motor (902); the power output shaft of the stepper motor (902) is connected to a screw rod 1 (903) via a coupling transmission; the end of the screw rod 1 (903) away from the stepper motor (902) is fixedly connected to a connecting rod 1 (904); and the end of the connecting rod 1 (904) away from the screw rod 1 (903) is fixedly connected to a screw rod 2 (908).

5. The welding equipment for fin tube type membrane water-cooled wall according to claim 4, characterized in that: A fixed sleeve (905) is arranged on the outside of the slag discharge hole (4), a bearing is fixedly installed on the inner wall of the fixed sleeve (905), a connecting rod (904) is rotatably arranged in the bearing, a fixed seat (906) is fixedly connected to an outer wall on one side of the fixed sleeve (905), and both side outer walls of the fixed seat (906) are fixedly connected to a limiting plate (907), and the outer walls of the two limiting plates (907) that are away from each other are both against the inner walls of both ends of the middle round steel pipe (1).

6. The welding equipment for fin tube type membrane water wall according to claim 5, characterized in that: The surfaces of the screw rod 1 (903) and the screw rod 2 (908) are both threadedly connected with a plurality of movable seats 1 (909) distributed in an array, and the outer wall of one side of the movable seat 1 (909) is fixedly connected to the limit plate 2 (910), and the limit plates 2 (910) on both sides of the connecting rod 1 (904) are both facing the fixed seat (906), and each limit plate 2 (910) is against the inner wall of a round steel pipe (1), and the inner wall of the movable frame (901) is fixedly connected with a guide rod 1 (911), and the movable seat 1 (909) is slidably set on the surface of the guide rod 1 (911), and the fixed sleeve (905) is fixedly connected to the surface of the guide rod 1 (911).

7. The welding equipment for fin tube type membrane water wall according to claim 1, characterized in that: The moving assembly (10) comprises a double-axis motor (1001), the double-axis motor (1001) is fixedly connected to one side of the top surface of the welding table (3), one side of the output shaft of the double-axis motor (1001) is connected to a second connecting rod (1002) via a coupling transmission, one end of the second connecting rod (1002) away from the double-axis motor (1001) is fixedly connected to a third screw rod (1003), the output shaft of the double-axis motor (1001) away from the second connecting rod (1002) is connected to a fourth screw rod (1004) via a coupling transmission, the surface of the fourth screw rod (1004) is threadedly connected to a second moving seat (1005), and one end of the fourth screw rod (1004) away from the double-axis motor (1001) is fixedly connected to a third connecting rod (1006), and the third connecting rod (1006) One end away from the screw rod four (1004) is fixedly connected to the screw rod five (1007), the surfaces of the screw rod three (1003) and the screw rod five (1007) are both threadedly connected to the movable frame one (1008), the two movable frames one (1008) are symmetrically arranged about the welding table (3), the ends of the two movable frames one (1008) away from each other are fixedly connected to one end of the outer wall of the two movable frames (901), the ends of the circumferential surfaces of the screw rod three (1003), the screw rod four (1004) and the screw rod five (1007) are all sleeved with shaft sleeves (1009), the outer wall of the shaft sleeve (1009) is fixedly connected to the guide rod two (1010), and the movable seat two (1005) and the movable frame one (1008) are both slidably arranged on the surface of the guide rod two (1010).

8. The welding equipment for fin tube type membrane water wall according to claim 7, characterized in that: Both ends of the top surface of the side opposite to the dual-axis motor (1001) on the welding table (3) are fixedly connected to fixed plates (1011); the outer walls of the two fixed plates (1011) away from each other are fixedly connected to guide rods three (1012); the surfaces of the two guide rods three (1012) are slidably provided with movable frames two (1013); the two movable frames two (1013) are symmetrically arranged, and the ends of the two movable frames two (1013) away from each other are fixedly connected to one end of the outer wall of the two movable frames (901); the movable frames one (1008) and the movable frames two (1013) are symmetrically arranged with respect to the welding table (3).

9. The welding equipment for fin tube type membrane water wall according to claim 1, characterized in that: The dust blowing assembly (11) comprises a rotating frame (1101), the rotating frame (1101) being fixedly connected to the outer wall of the second movable seat (1005), the outer wall of the dual-axis motor (1001) being fixedly connected to a rotating motor (1102), the power output shaft of the rotating motor (1102) being connected to a rotating rod (1103) via a coupling, and the outer wall of the rotating rod (1103) being fixedly connected to a rotating seat (1104).

10. The welding equipment for fin tube type membrane water wall according to claim 9, characterized in that: The top surface of the rotating seat (1104) is fixedly connected to a driving motor (1105); the power output shaft of the driving motor (1105) is connected to a rotating disk (1106) via a coupling; one end of the top surface of the rotating disk (1106) is fixedly connected to an eccentric rod (1107); a rotating plate (1108) is rotatably provided on the surface of the eccentric rod (1107); one end of the rotating seat (1104) away from the rotating frame (1101) is fixedly connected to a guide frame (1109); the inner walls of both sides of the guide frame (1109) are fixedly connected to guide rods (1110); and the guide rods (1110) are fixedly connected to the inner walls of the guide frames (1109). 0) is slidably provided with a sliding seat (1111), a fixed rod (1112) is fixedly connected to the middle of the top surface of the sliding seat (1111), one end of the rotating plate (1108) away from the eccentric rod (1107) is rotatably provided on the surface of the fixed rod (1112), blowers (1113) are fixedly installed at both ends of the interior of the sliding seat (1111), an output end of the blower (1113) is fixedly connected to an air outlet pipe (1114), the two air outlet pipes (1114) are symmetrically arranged about the sliding seat (1111), and the output direction of the air outlet pipe (1114) faces the welding table (3).

Images