A high pressure boiler alloy welding support and supporting method

Abstract

The application discloses a high-pressure boiler alloy welding support and a supporting method, and relates to the technical field of high-pressure boiler alloy welding, which comprises a support frame, the support frame comprises a base and a stand column, the stand column is vertically arranged on the upper end face of the base, a plug-in sleeve is slidably connected to the outer wall of the stand column, two adjusting cross beams are symmetrically arranged on the outer wall of the plug-in sleeve, T-shaped adjusting grooves are formed in the bottom ends of the two adjusting cross beams, T-shaped limiting blocks are slidably connected in the T-shaped adjusting grooves, the bottom ends of the T-shaped limiting blocks extend to positions below the grooves of the T-shaped adjusting grooves, clamping notches are formed in the T-shaped limiting blocks for clamping the side walls of the end portions of the boiler, the upper end faces of the T-shaped limiting blocks are fixedly connected with tooth blocks, tooth grooves are formed in the inner top walls of the T-shaped adjusting grooves, and the tooth blocks are clamped with the tooth grooves. The application is convenient for front welding points of welders, easy to control the welding quality, and does not need to turn over the boiler back and forth, and the welders do not need to lie or bend down to weld in different positions, so that the welding difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-pressure boiler alloy welding, in particular to a high-pressure boiler alloy welding support and supporting method. BACKGROUND

[0002] A boiler is composed of a pot and a furnace, the upper water containing part is the pot, and the lower heating part is the furnace, the integrated design of the pot and the furnace is called a boiler, and the high-pressure boiler is a boiler with a steam gauge pressure higher than 5.88 MPa and lower than 9.81 MPa, the welding operation of the high-pressure boiler is generally to fix and support the furnace body and the pot body of the boiler through a support, and then a welder sequentially performs welding operation according to welding points until all welding is completed, this kind of way can complete the welding of the boiler, but since the position of the boiler does not change during the whole welding process, and the boiler is generally a cylindrical structure, the welder needs to lie or bend down to weld at different positions, which increases the welding difficulty, and the welding needs to be turned back and forth from different angles, so it is difficult for the welder to control the welding quality, therefore, the high-pressure boiler alloy welding support and supporting method is designed to solve the above problems. SUMMARY

[0003] The present application aims to provide a high-pressure boiler alloy welding support and supporting method to solve the problems raised in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a high-pressure boiler alloy welding support, comprising a support frame, the support frame comprising a base and a stand, the stand being vertically arranged on the upper end surface of the base, the high-pressure boiler being hoisted by hoisting equipment, the boiler being vertically penetrated through the stand and seated on the base, when welding at different angles of the boiler, the welder only needs to move around the vertically placed outer side of the boiler to approach the surface welding points of the boiler, which is convenient for the welder to weld from the front and easy to control the welding quality without the need to turn back and forth the boiler, and the welder does not need to lie or bend down to weld at different positions, thereby reducing the welding difficulty.

[0005] The outer wall of the column is sleeved with an insertion sleeve, the outer wall of the insertion sleeve is symmetrically provided with two adjusting cross beams, the bottom end of each adjusting cross beam is provided with a T-shaped adjusting slot, a T-shaped limiting block is slidably connected in the T-shaped adjusting slot, the bottom end of the T-shaped limiting block extends to a position below the slot opening of the T-shaped adjusting slot, and a clamping notch is formed in the bottom end of the T-shaped limiting block for clamping the end side wall of the boiler, after the high-pressure boiler is placed on the base through the column, in order to avoid the high-pressure boiler from being horizontally shaken on the base to cause tilting, the insertion sleeve is inserted from the top end of the column and is slid downward along the outer wall of the column, and the position of the T-shaped limiting block is adjusted, as the insertion sleeve continuously slides downward, the clamping notch of the T-shaped limiting block is finally clamped on the end side wall of the high-pressure boiler, the position of the T-shaped limiting block is limited, and the high-pressure boiler can be stably placed on the base.

[0006] The upper end surface of the T-shaped limiting block is fixedly provided with a tooth block, the inner top wall of the T-shaped adjusting slot is provided with a tooth groove, and the tooth block is clamped with the tooth groove, so that the positions of the two T-shaped limiting blocks are prevented from being simultaneously changed, the position of the high-pressure boiler on the base is prevented from being changed, and a safety accident is easily caused.

[0007] The vertical height of the upper end surface of the T-shaped limiting block from the inner top wall of the T-shaped adjusting slot is greater than the sum of the height of the tooth block and the groove depth of the tooth groove, and the inner height of the T-shaped adjusting slot satisfies the up-and-down floating of the T-shaped limiting block, so that the tooth block can be adjusted in position in the space below the tooth groove along with the T-shaped limiting block.

[0008] In a further embodiment, the clamping notch is an inverted V-shaped structure.

[0009] In a further embodiment, the column is detachably arranged on the upper end surface of the base.

[0010] The upper end surface of the base is provided with a rectangular placing notch, a lifting plate is detachably clamped in the rectangular placing notch, the column is fixedly arranged on the upper end surface of the lifting plate, the upper end surface of the lifting plate is flush with the upper end surface of the base, and the top end of the column is fixedly provided with a ring-shaped lifting buckle. The rope of the lifting device is tied to the ring-shaped lifting buckle, the lifting device is lifted, the high-pressure boiler can be lifted from the horizontal direction to the vertical direction, the lifting plate serves as a support for supporting the high-pressure boiler, and the lifting plate is clamped in the rectangular placing notch, so that the high-pressure boiler can be stably placed on the base.

[0011] In a further embodiment, the outer side of the support frame is provided with a protection structure, the high-pressure boiler placed on the base is protected by the protection structure, the high-pressure boiler is prevented from being vertically placed unstably and tilted to cause a safety accident.

[0012] The protection structure comprises two upper protection frames of semicircular structure, two lower protection frames of semicircular structure and two arc-shaped support plates, the upper protection frame and the lower protection frame are fixed at the upper end and the lower end of the arc-shaped support plate respectively, the bottom end of the two lower protection frames is rotatably provided with a moving roller, and the two lower protection frames are symmetrically clamped on the outer wall of the base.

[0013] In a further embodiment, the inner wall of the two lower protection frames is fixed with a plug-in rod, and the outer wall of the base is symmetrically provided with a plug-in slot for inserting the plug-in rod.

[0014] In a further embodiment, the outer part of the two arc-shaped support plates is provided with a detachable support structure. By arranging the support structure outside the protection structure, the support structure can not only support the stability of the protection structure, but also serve as a stepping support for welders. The height of the support structure can be adjusted according to the welding height of the standing high-pressure boiler, so that the welding operation can be quickly performed.

[0015] The support structure comprises an adjusting sleeve and a ring-shaped supporting plate, the adjusting sleeve is rotatably arranged on the upper end surface of the ring-shaped supporting plate, the adjusting sleeve and the ring-shaped supporting plate are sleeved outside the two arc-shaped support plates, and the adjusting sleeve is connected with the outer wall of the two arc-shaped support plates through threads. The welder stands on the ring-shaped supporting plate, which is convenient for operating the welding equipment to weld the standing high-pressure boiler.

[0016] The edge of the ring-shaped supporting plate is hinged with a staircase, which is convenient for the welder to go up and down the ring-shaped supporting plate.

[0017] The upper end edge of the ring-shaped supporting plate is fixed with a handrail through a support rod, and the handrail is provided with a notch above the staircase.

[0018] In a further embodiment, the end of the staircase away from the hinged position is hinged with a support plate, and the bottom end of the support plate is rotatably embedded with a plurality of rolling balls.

[0019] In a further embodiment, the upper end of one of the upper protection frames is fixed with a mounting box, the mounting box is embedded with a motor, the output end of the motor penetrates the mounting box and is connected with a transmission rod, the outer wall of the arc-shaped support plate is provided with a placing slot for placing the transmission rod, the outer wall of the transmission rod is provided with a pushing block, and the inner wall of the adjusting sleeve is provided with a clamping groove matched with the pushing block. The motor is a servo reducer motor, the transmission rod is driven to rotate by the motor, the pushing block pushes the clamping groove of the adjusting sleeve, and the adjusting sleeve is automatically adjusted in rotation outside the two arc-shaped support plates.

[0020] Preferably, the support method of the high-pressure boiler alloy welding support based on the above comprises the following steps:

[0021] The high-pressure boiler is hoisted by hoisting equipment, the boiler is vertically penetrated through the stand and is placed on the base, when welding is performed on different angles of the boiler, welding personnel only need to move around the outside of the vertically placed boiler to approach the welding points on the surface of the boiler, the welding personnel can easily weld the welding points in front, the welding quality is easily controlled, the boiler does not need to be turned back and forth, meanwhile, the welding personnel do not need to perform welding in a lying or low head posture for different position welding points.

[0022] Subsequently, the insertion sleeve is inserted from the top end of the stand and slides down along the outer wall of the stand, meanwhile, the clamping notches of the two T-shaped limiting blocks are adjusted to be opposite to the end side wall of the high-pressure boiler, as the insertion sleeve continuously slides down, the clamping notches of the T-shaped limiting blocks are finally clamped on the end side wall of the high-pressure boiler, the position of the T-shaped limiting block is limited, namely the high-pressure boiler is stably placed on the base.

[0023] Compared with the prior art, the high-pressure boiler alloy welding support and supporting method have the beneficial effects that:

[0024] The high-pressure boiler alloy welding support and supporting method have the beneficial effects that: the high-pressure boiler is hoisted by hoisting equipment, the boiler is vertically penetrated through the stand and is placed on the base, when welding is performed on different angles of the boiler, welding personnel only need to move around the outside of the vertically placed boiler to approach the welding points on the surface of the boiler, the welding personnel can easily weld the welding points in front, the welding quality is easily controlled, the boiler does not need to be turned back and forth, meanwhile, the welding personnel do not need to perform welding in a lying or low head posture for different position welding points, thereby welding difficulty is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is an exploded view of the main structure of the application;

[0026] Figure 2 It is a sectional view of the adjusting beam structure of the application;

[0027] Figure 3 It is an exploded view of the stand and base structure of the application;

[0028] Figure 4 It is an installation schematic view of the protection structure and support structure of the application;

[0029] Figure 5 It is a support structure structure schematic view of the application;

[0030] Figure 6 It is a Figure 5 It is an enlarged view of structure A in the middle;

[0031] Figure 7 It is a partial structure schematic view of the protection structure of the application;

[0032] Figure 8This is a top view of the connection structure between the adjusting sleeve and the transmission shaft of the present invention.

[0033] In the diagram: 1. Support frame; 11. Base; 12. Column; 13. Insert sleeve; 14. Adjusting beam; 15. T-shaped limit block; 16. Tooth groove; 17. Tooth block; 18. Ring lifting buckle; 19. Lifting plate; 2. Protective structure; 21. Arc-shaped support plate; 22. Upper protective frame; 23. Lower protective frame; 24. Insert rod; 25. Mounting box; 26. Transmission rod; 3. Support structure; 31. Adjusting sleeve; 32. Ring support plate; 33. Handrail; 34. Ladder; 35. Support plate; 36. Ball bearing. Detailed Implementation

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] Please see Figures 1-8

[0037] This embodiment provides a high-pressure boiler alloy welding bracket and support method, including a support frame 1. The support frame 1 includes a base 11 and a column 12, with the column 12 vertically disposed on the upper surface of the base 11. Figure 1 As shown, the high-pressure boiler is hoisted using hoisting equipment. The boiler passes vertically through the column 12 and sits on the base 11. When welding the boiler at different angles, the welder only needs to walk around the outside of the vertically placed boiler to approach the welding point on the boiler surface. This makes it easier for the welder to weld the point from the front, making it easier to control the welding quality. There is no need to turn the boiler back and forth. At the same time, the welder does not need to weld in a lying or overhead position for different welding points, which reduces the welding difficulty and also avoids a large amount of high-temperature welding slag falling on the welder's clothes and face.

[0038] The high-pressure boiler is placed vertically on the base 11, which changes the traditional method of welding the boiler horizontally. Although the welding position of the boiler can be changed by rotating it when the high-pressure boiler is placed horizontally, the boiler is generally large and heavy. Relying on manual rotation of the boiler requires a lot of manpower. Therefore, large transmission equipment is needed to assist in rotating the high-pressure boiler, which is costly.

[0039] The high-pressure boiler is erected for welding. Regardless of the welding location, the welder is always in the front welding position, and the welder does not need to adjust the welding posture significantly.

[0040] The outer wall of the column 12 is sleeved with an insertion sleeve 13, the outer wall of the insertion sleeve 13 is symmetrically provided with two adjusting cross beams 14, the bottom end of each of the two adjusting cross beams 14 is provided with a T-shaped adjusting slot, and a T-shaped limiting block 15 is slidably connected in the T-shaped adjusting slot, the bottom end of the T-shaped limiting block 15 extends to a position below the slot opening of the T-shaped adjusting slot, and a clamping notch is formed in the T-shaped limiting block 15 for clamping the side wall of the end portion of the boiler, as shown in Figure 1 and Figure 2 When the high-pressure boiler is placed on the base 11 through the column 12, in order to avoid horizontal shaking of the high-pressure boiler on the base 11 from causing the high-pressure boiler to fall, the insertion sleeve 13 is inserted into the top end of the column 12 and slides downward along the outer wall of the column 12, and the position of the T-shaped limiting block 15 is adjusted, that is, the two T-shaped limiting blocks 15 are adjusted in position by sliding along the respective T-shaped adjusting slots, and when the clamping notches of the two T-shaped limiting blocks 15 are opposite to the side wall of the end portion of the high-pressure boiler, the adjustment of the position of the T-shaped limiting block 15 is stopped, and as the insertion sleeve 13 continuously slides downward, the clamping notches of the T-shaped limiting blocks 15 are finally clamped on the side wall of the end portion of the high-pressure boiler, thereby limiting the position of the T-shaped limiting block 15, and the high-pressure boiler can be stably placed on the base 11.

[0041] The upper end surface of the T-shaped limiting block 15 is fixedly provided with a tooth block 17, and a tooth groove 16 is formed in the inner top wall of the T-shaped adjusting slot, and the tooth block 17 and the tooth groove 16 are connected by clamping, so that the position of the T-shaped limiting block 15 can be limited, and the synchronous position change of the two T-shaped limiting blocks 15 is avoided, which can cause the position of the high-pressure boiler on the base 11 to change and easily cause a safety accident.

[0042] The vertical height of the upper end surface of the T-shaped limiting block 15 from the inner top wall of the T-shaped adjusting slot is greater than the sum of the height of the tooth block 17 and the groove depth of the tooth groove 16, as shown in Figure 2 The inner height of the T-shaped adjusting slot satisfies the up-and-down floating of the T-shaped limiting block 15, so that the tooth block 17 can be adjusted in position in the space below the tooth groove 16 along with the T-shaped limiting block 15, and when the position of the T-shaped limiting block 15 is adjusted, as the insertion sleeve 13 continuously slides downward, the clamping notches are clamped on the side wall of the end portion of the high-pressure boiler, the T-shaped limiting block 15 can be slid upward along the T-shaped adjusting slot, the tooth block 17 is clamped into the tooth groove 16 in the corresponding position, and thus the position of the T-shaped limiting block 15 is limited.

[0043] The insertion sleeve 13 and the column 12 can also be connected by threads, so that the insertion sleeve 13 cannot slide along the outer wall of the column 12 at will, and thus the clamping notches of the T-shaped limiting blocks 15 cannot be separated from the side wall of the end portion of the high-pressure boiler at will.

[0044] Example Two

[0045] Further improvements are made on the basis of Example 1:

[0046] As shown in Figure 2As shown, the snap-fit ​​notch is set as an inverted V-shaped structure. The advantage of this is that the two side walls inside the snap-fit ​​notch of the inverted V-shaped structure can snap onto the end side walls of high-pressure boilers with different wall thicknesses, resulting in a wide snap-fit ​​range.

[0047] The column 12 is detachably mounted on the upper surface of the base 11. The column 12 can be removed from the base 11 to facilitate the hoisting of the high-pressure boiler by the hoisting equipment. The hoisting height does not need to exceed the vertical height of the column 12. The high-pressure boiler can be moved laterally simply by hoisting it off the upper surface of the base 11, which improves the efficiency of moving the high-pressure boiler up and down.

[0048] like Figure 3 As shown, a rectangular placement notch is provided on the upper surface of the base 11. A lifting plate 19 is detachably attached to the rectangular placement notch. A column 12 is fixedly installed on the upper surface of the lifting plate 19. A ring-shaped lifting buckle 18 is fixed to the top of the column 12. The column 12 and the lifting plate 19 form a lifting component for lifting the high-pressure boiler. The high-pressure boiler to be welded is placed horizontally. The column 12 is passed through one end of the high-pressure boiler. The end of the lifting plate 19 abuts against the end of the high-pressure boiler. The rope of the lifting equipment is tied to the ring-shaped lifting buckle 18. The lifting equipment is raised, which can lift the high-pressure boiler from the horizontal direction to the vertical direction. The lifting plate 19 serves as a support for the high-pressure boiler and is hoisted onto the base 11. The lifting plate 19 is inserted into the rectangular placement notch. Since the upper surface of the lifting plate 19 is flush with the upper surface of the base 11, the high-pressure boiler can be stably placed on the base 11.

[0049] Similarly, after the high-pressure boiler welding is completed, the hoisting equipment can directly lift the hoisting components and lift the high-pressure boiler away from the base 11, which is efficient and fast.

[0050] Example 3

[0051] Further improvements were made based on Example 2:

[0052] The outer side of the support frame 1 is provided with a protective structure 2, such as... Figure 1 As shown, protective structure 2 is used to protect the high-pressure boiler located on base 11, so as to prevent the high-pressure boiler from tilting due to instability when placed vertically, thus avoiding safety accidents.

[0053] The protective structure 2 includes two semi-circular upper protective frames 22, two semi-circular lower protective frames 23, and two arc-shaped support plates 21. The upper protective frames 22 and lower protective frames 23 are fixed to the upper and lower ends of the arc-shaped support plates 21, respectively. The bottom ends of the two lower protective frames 23 are equipped with rotatable rollers, and the two lower protective frames 23 are symmetrically locked onto the outer wall of the base 11. The rollers can lock the two lower protective frames 23 onto the outer wall of the base 11. At the same time, the two upper protective frames 22 are close together to form a protective frame that surrounds the outside of the high-pressure boiler. This does not affect the effective welding operation and can also play a protective role.

[0054] Two lower guard frame 23 inside wall fixed with plug-in rod 24, the base 11 outer wall symmetrically provided with the plug-in slot of inserting with plug-in rod 24, two lower guard frame 23 symmetrically clamped in the outer wall of base 11, while plug-in rod 24 is inserted into the corresponding plug-in slot, the connection tightness between lower guard frame 23 and base 11 is enhanced.

[0055] Example four

[0056] On the basis of example 3, further improvement is made:

[0057] The outer part of the two arc-shaped support plates 21 is provided with a detachable support structure 3, as shown in the drawings, by setting the support structure 3 outside the protective structure 2, it can not only play the role of supporting the stability of the protective structure 2, but also can be used as a stepping support for welders, and the support height of the support structure 3 can be adjusted according to the different welding height positions of the erected high-pressure boiler to realize quick welding operation. Figure 4 The support structure 3 includes an adjusting sleeve 31 and a ring-shaped supporting plate 32, as shown in the drawings, the adjusting sleeve 31 is rotatably arranged on the upper end surface of the ring-shaped supporting plate 32, the adjusting sleeve 31 and the ring-shaped supporting plate 32 are sleeved outside the two arc-shaped support plates 21, and the adjusting sleeve 31 is connected with the outer wall of the two arc-shaped support plates 21 through threads, the welder stands on the ring-shaped supporting plate 32, which is convenient for operating the welding equipment to weld the erected high-pressure boiler.

[0058] Figure 5 In addition, the personnel in charge of rotating the adjusting sleeve 31 can adjust the height of the adjusting sleeve 31, that is, the welding height of the welder, by rotating the adjusting sleeve 31 relative to the two arc-shaped support plates 21, which can be adjusted according to the welding position of different height.

[0059] In addition, the personnel in charge of rotating the adjusting sleeve 31 can adjust the height of the adjusting sleeve 31, that is, the welding height of the welder, by rotating the adjusting sleeve 31 relative to the two arc-shaped support plates 21, which can be adjusted according to the welding position of different height.

[0060] The edge of the ring-shaped supporting plate 32 is hinged with a staircase 34, as shown in the drawings, the staircase 34 is convenient for the welder to go up and down the ring-shaped supporting plate 32. Figure 5 Another function of the staircase 34 is to assist the personnel rotating the adjusting sleeve 31, which can indirectly drive the adjusting sleeve 31 to make circular motion by pushing the staircase 34 to adjust the welding height of the welder.

[0061] The upper edge of the ring-shaped supporting plate 32 is fixed with a handrail 33 through a support rod, and the handrail 33 is provided with a notch above the staircase 34, as shown in the drawings, the notch is convenient for the welder to go up and down the ring-shaped supporting plate 32, and the handrail 33 can prevent the welder from falling off the ring-shaped supporting plate 32 accidentally.

[0062] Figure 5 The upper edge of the ring-shaped supporting plate 32 is fixed with a handrail 33 through a support rod, and the handrail 33 is provided with a notch above the staircase 34, as shown in the drawings, the notch is convenient for the welder to go up and down the ring-shaped supporting plate 32, and the handrail 33 can prevent the welder from falling off the ring-shaped supporting plate 32 accidentally.

[0063] ​​The escalator 34 is hinged with a support plate 35 at the end away from the hinge position, and a plurality of rolling balls 36 are embedded in the bottom end of the support plate 35, as shown in Figure 6 No matter what height the adjusting sleeve 31 is at, the escalator 34 is always in rolling contact with the ground through the rolling balls 36 at the bottom end of the support plate 35, and the friction with the ground is greatly reduced when the adjusting sleeve 31 is rotated by the escalator 34.

[0064] One of the upper protection frames 22 is fixed with a mounting box 25 at the upper end, and a motor is embedded in the mounting box 25. The output end of the motor penetrates through the mounting box 25 and is connected with a transmission rod 26. The outer wall of the arc-shaped support plate 21 is provided with a placing groove for placing the transmission rod 26. The outer wall of the transmission rod 26 is provided with a pushing block, and the inner wall of the adjusting sleeve 31 is provided with a clamping groove for clamping the pushing block, as shown in Figures 7-8 The motor is a servo deceleration motor. The transmission rod 26 is rotated by the motor, and the pushing block pushes the clamping groove of the adjusting sleeve 31, so that the adjusting sleeve 31 is automatically rotated and adjusted outside the two arc-shaped support plates 21. No additional manpower is needed to assist in rotating and adjusting the adjusting sleeve 31. According to the welding height requirement, the motor provides power for adjustment, which is simple and fast.

[0065] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high pressure boiler alloy welding support bracket comprising a support bracket (1) characterized by: The support frame (1) comprises a base (11) and a column (12), the column (12) is vertically arranged on the upper end surface of the base (11), the high-pressure boiler is hoisted by hoisting equipment, the boiler is vertically penetrated in the axial direction through the column (12) and is placed on the base (11); The outer wall of the column (12) is slidably sleeved with a plug sleeve (13), the outer wall of the plug sleeve (13) is symmetrically fixed with two adjusting cross beams (14), the bottom end of the two adjusting cross beams (14) is respectively provided with a T-shaped adjusting groove, a T-shaped limiting block (15) is slidably connected in the T-shaped adjusting groove, the bottom end of the T-shaped limiting block (15) extends to a position below the T-shaped adjusting groove, and a clamping notch is formed for clamping the side wall of the end of the boiler; The upper end surface of the T-shaped limiting block (15) is fixed with a tooth block (17), the inner top wall of the T-shaped adjusting groove is provided with a tooth groove (16), and the tooth block (17) is clamped with the tooth groove (16); The vertical height of the upper end surface of the T-shaped limiting block (15) from the inner top wall of the T-shaped adjusting groove is greater than the sum of the height of the tooth block (17) and the groove depth of the tooth groove (16); The column (12) is detachably arranged on the upper end surface of the base (11); The upper end surface of the base (11) is provided with a rectangular placing notch, and the lifting plate (19) is detachably clamped in the rectangular placing notch, and the column (12) is fixedly arranged on the upper end surface of the lifting plate (19); The upper end surface of the lifting plate (19) is flush with the upper end surface of the base (11); The top end of the column (12) is fixed with an annular lifting buckle (18); The inner side wall of the two lower protection frames (23) is fixed with a plug rod (24), and the outer wall of the base (11) is symmetrically provided with a plug groove for plug connection with the plug rod (24); The outer part of the two arc-shaped supporting plates (21) is provided with a detachable supporting structure (3); The supporting structure (3) comprises an adjusting sleeve (31) and an annular supporting plate (32), the adjusting sleeve (31) is rotatably arranged on the upper end surface of the annular supporting plate (32), the adjusting sleeve (31) and the annular supporting plate (32) are sleeved on the outer part of the two arc-shaped supporting plates (21), and the adjusting sleeve (31) and the outer wall of the two arc-shaped supporting plates (21) are connected through threads; The annular supporting plate (32) is hinged with a staircase (34) at the edge position; The annular supporting plate (32) is fixed with a handrail (33) at the upper end edge through a supporting rod, and the handrail (33) is provided with a notch above the staircase (34).

2. A high pressure boiler alloy weldment support according to claim 1, characterized in that: The clamping notch is an inverted V-shaped structure.

3. A high pressure boiler alloy weldment support according to claim 1, wherein: The outer side of the support frame (1) is provided with a protection structure (2); The protection structure (2) comprises two upper protection frames (22) of half-circular structure, two lower protection frames (23) of half-circular structure and two arc-shaped supporting plates (21), the upper protection frame (22) and the lower protection frame (23) are respectively fixed at the upper and lower ends of the arc-shaped supporting plate (21), the bottom end of the two lower protection frames (23) is rotatably provided with a moving roller, and the two lower protection frames (23) are symmetrically clamped on the outer wall of the base (11).

4. A high pressure boiler alloy weldment support according to claim 1, wherein: The escalator (34) is hinged with a support plate (35) away from the hinged position, and the bottom end of the support plate (35) is rotatably embedded with a plurality of rolling balls (36).

5. A high pressure boiler alloy weldment support according to claim 1, wherein: One of the upper protective frames (22) is fixed with a mounting box (25) at the upper end, the mounting box (25) is embedded with a motor, the output end of the motor penetrates through the mounting box (25) and is connected with a transmission rod (26), the outer wall of the arc-shaped support plate (21) is provided with a placing groove for placing the transmission rod (26), the outer wall of the transmission rod (26) is provided with a pushing block, and the inner wall of the adjusting sleeve (31) is provided with a clamping groove matched with the pushing block.

6. A method for supporting a high pressure boiler alloy welding support using the high pressure boiler alloy welding support according to any one of claims 1 to 5, characterized in that, The method comprises the following steps: The high-pressure boiler is hoisted by hoisting equipment, the boiler is vertically penetrated through the stand column (12) and is seated on the base (11), when welding is performed on different angles of the boiler, the welder only needs to approach the welding points on the surface of the boiler by moving around the vertically placed outer side of the boiler, the welder is convenient to approach the welding points from the front, the welding quality is easy to control, the boiler does not need to be turned over, meanwhile, the welder does not need to perform welding in the posture of lying or bending over for different position welding points; Then, the plug-in sleeve (13) is inserted from the top end of the stand column (12) and is slid downward along the outer wall of the stand column (12), meanwhile, the clamping notches of the two T-shaped limiting blocks (15) are adjusted to be opposite to the end side wall of the high-pressure boiler, as the plug-in sleeve (13) continuously slides downward, the clamping notches of the T-shaped limiting blocks (15) will finally be clamped on the end side wall of the high-pressure boiler, the position of the T-shaped limiting blocks (15) is limited, that is, the high-pressure boiler can be stably seated on the base (11).

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