Embedded welding assembly device for nuclear power pipeline

Abstract

The invention discloses an embedded welding assembly device for a nuclear power pipeline, and relates to the technical field of welding assembly. Comprising a lower supporting block and further comprises a supporting frame installed on the top of the lower supporting block. The jack is arranged in the supporting frame; the upper supporting block is connected with the telescopic end of the jack; the protection mechanism is connected with the supporting frame, the protection mechanism comprises an air supply assembly, the air supply assembly is connected with the upper supporting block, and the jack is used for driving the upper supporting block and the air supply assembly to move in the vertical direction; and the contact mechanism comprises a push rod, an arc-shaped plate is installed outside the push rod, a connecting hopper is arranged at the top of the arc-shaped plate, and the push rod is used for controlling the arc-shaped plate and the connecting hopper to make contact with the inner wall of the assembly pipeline. According to the embedded welding assembly device for the nuclear power pipeline, the purpose of improving the use efficiency of equipment is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding group pair technology, and particularly relates to an embedded welding group pair device for a nuclear power pipeline. BACKGROUND

[0002] Nuclear power plants have high requirements for various devices to ensure nuclear safety. The quality of the group pair of the nuclear power pipeline directly determines the welding qualification rate and the integrity of the pipeline system, and is the focus of quality supervision in the construction of the nuclear power plant. The entire process needs to follow strict program files and be verified through three-dimensional measurement, non-destructive testing and other means to ensure that each interface can withstand extreme working conditions in the operation of the power plant for decades.

[0003] In the utility model patent with the publication number CN222492873U, an embedded welding group pair device for a nuclear power pipeline is disclosed. The device provides lateral support while utilizing the elasticity of the spring to enable the push rod to penetrate the through slot on both sides of the lower support block. The limiting ring on the outside of the push rod and the limiting piece facilitate limiting, thereby facilitating the installation and disassembly of the group pair device. However, in the welding work, debris can easily enter the group pair pipeline through the groove, and the subsequent cleaning work is complex. Moreover, when argon gas is used to blow the pipeline, workers are prone to accidentally inhale argon gas. SUMMARY

[0004] To overcome the problems of debris easily entering the group pair pipeline through the groove in the welding work, the subsequent cleaning work being complex, and workers being prone to accidentally inhaling argon gas when argon gas is used to blow the pipeline, the present application provides an embedded welding group pair device for a nuclear power pipeline, which comprises a lower support block and further comprises: a support frame installed on the top of the lower support block; a jack arranged in the interior of the support frame; an upper support block connected with the telescopic end of the jack; a protection mechanism connected with the support frame, the protection mechanism comprising a air supply assembly connected with the upper support block, the jack being used to drive the upper support block and the air supply assembly to move in the vertical direction; a contact mechanism arranged above the upper support block, the contact mechanism comprising a push rod, the exterior of the push rod being installed with an arc-shaped plate, the top of the arc-shaped plate being provided with a connecting hopper, the push rod being used to control the contact between the arc-shaped plate and the connecting hopper and the inner wall of the group pair pipeline.

[0005] Preferably, the protection mechanism further comprises: a through slot opened in the interior of the lower support block; a channel opened in the interior of the lower support block; an adjusting rod installed in the interior of the through slot; A support frame is connected with the adjusting rod, and is used to control the lower support block to be horizontal when the support frame is placed on the ground, so as to avoid the swing of the lower support block.

[0006] Preferably, the protection mechanism further comprises: A connecting pipe is installed inside the support frame, and the connecting pipe is provided with a plurality of; A protection cylinder is installed on the top of the lower support block; A side plate is installed inside the support frame, and the side plate is connected with the protection cylinder, and a ventilation opening is formed in the inside of the side plate.

[0007] Preferably, the air supply assembly comprises: A support column is installed on the top of the support frame, and the support column is provided with a plurality of; A center frame is connected with the support column; A first telescopic rod is installed on the top of the support column; A connecting frame is connected with the telescopic end of the first telescopic rod, and the connecting frame is connected with the upper support block.

[0008] Preferably, the air supply assembly further comprises: A groove is formed in the inside of the protection cylinder; A limiting ring is installed in the inside of the groove; A branch pipe is slidingly connected in the inside of the groove, and the branch pipe is connected with the upper support block; An extension plate is installed on the outside of the branch pipe.

[0009] Preferably, the contact mechanism further comprises: An outer ring is installed on the top of the upper support block; A center cylinder is installed on the top of the upper support block, and a push rod is installed on the outside of the center cylinder; An engaging rod is installed on the top of the arc-shaped plate, and the engaging rod is clamped with the connecting hopper.

[0010] Preferably, the contact mechanism further comprises: A cross frame is installed in the inside of the center cylinder; A lifting rod is installed on the top of the cross frame, and a blowing assembly is installed on the top of the lifting rod, and the lifting rod is used to control the relative distance between the arc-shaped plate and the cylinder opening of the center cylinder in the blowing assembly.

[0011] Preferably, the blowing assembly comprises: A fixed rod is connected with the telescopic end of the lifting rod; A plurality of annular plates are arranged outside the fixed rod, and the inner part of the annular plate is provided with a plurality of ventilation holes for circulating argon gas. A viscous rod is arranged on the top of the annular plate.

[0012] Preferably, the air blowing assembly further comprises: A second telescopic rod is arranged at the end of the fixed rod away from the lifting rod. A top plate is connected with the second telescopic rod. An elastic outer ring is arranged outside the top plate, and the elastic outer ring is arranged outside the pipe.

[0013] The present application provides an embedded welding assembly for nuclear power pipeline. 1. The embedded welding assembly for nuclear power pipeline, by setting the air blowing assembly, the communication between the branch pipe and the inside of the support frame is controlled by driving the upper support block to rise or fall by the jack. In the existing nuclear power pipeline welding assembly device, in the welding work, the debris is easy to enter the assembly pipe through the groove, and the subsequent cleaning work is complex, and when the argon gas is blown to the pipeline, the worker is easy to inhale the argon gas. Therefore, the air blowing assembly and the air blowing assembly are arranged, when the upper support block is driven to rise by the jack, the branch pipe is away from the bottom surface of the groove, the branch pipe is communicated with the inside of the support frame, and the argon gas in the support frame can enter the upper support block through the branch pipe. When the upper support block is driven to fall by the jack, the branch pipe gradually contacts the bottom surface of the groove, the branch pipe is no longer communicated with the inside of the support frame, and the argon gas in the support frame cannot enter the upper support block through the branch pipe. Then, the opening state of the jack is controlled to control the inflow of the argon gas, and the air blowing assembly is used to seal the pipe of the assembly pipe, so that the argon gas is prevented from moving from the assembly pipe to the user during the installation or welding of the main pipeline and the assembly pipe, and the user is prevented from inhaling.

[0014] 2. The embedded welding assembly for nuclear power pipeline, by setting the protection mechanism, the contact surface with the ground or the main pipeline is adjusted according to the state of the equipment. When the equipment is in the unused state, the support frame falls to the ground, at this time, the lower support block keeps the horizontal state, the protection cylinder and the jack are in the vertical direction. When the equipment is in use, the adjusting rod is in the shortest stroke, at this time, the arc surface at the bottom of the lower support block is in contact with the inner wall of the main pipeline, and the support frame is not in contact with the inner wall of the main pipeline. When the equipment is not used, the bottom of the lower support block is arranged in an arc shape, so that the lower support block drives the jack to tilt, the position of the jack is gradually tilted, and the installation work of the assembly pipe is affected.

[0015] 3. The embedded welding group device for nuclear power pipeline, by setting the air supply assembly, in the process of lifting or lowering the upper support block driven by the jack, the telescopic end of the jack slides up and down in the center frame, the upper support block drives the connecting frame to rise and fall, the connecting frame stretches or compresses the first telescopic rod, and then promotes the telescopic end of the jack to move in the vertical direction, reduces the possibility of complete or inclined telescopic end of the jack.

[0016] 4. The embedded welding group device for nuclear power pipeline, by setting the contact mechanism and the air supply assembly, using the top plate and the elastic outer ring to close the pipe opening of the group pipeline, avoiding the outward movement of argon to the worker's face when blowing the inside of the group pipeline, causing the worker to inhale argon. By controlling the annular plate in and out of the center cylinder, the direction of argon movement is controlled, and then the inside or inner wall of the group pipeline is blown, promoting the movement of debris and impurities, and further using the viscous rod to stick most of the debris and impurities. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure diagram of the present application; Figure 2 It is the structure diagram of another view of the present application; Figure 3 It is the structure diagram of the protection mechanism of the present application; Figure 4 It is the sectional view of the support frame of the present application; Figure 5 It is the structure diagram of the air supply assembly of the present application; Figure 6 It is the structure diagram of the contact mechanism of the present application; Figure 7 It is the sectional view of the center cylinder of the present application; Figure 8 It is the structure diagram of the air supply assembly of the present application.

[0018] As shown in the figure: 1, the lower support block; 2, the support frame; 3, the protection mechanism; 301, the through slot; 302, the adjusting rod; 303, the channel; 304, the support frame; 305, the connecting pipeline; 306, the protection cylinder; 307, the air supply assembly; 3071, the support column; 3072, the center frame; 3073, the first telescopic rod; 3074, the connecting frame; 3075, the branch pipe; 3076, the groove; 3077, the limiting ring; 3078, the extension plate; 308, the side plate; 4, the jack; 5, the upper support block; 6, the contact mechanism; 601, the outer ring; 602, the center cylinder; 603, the push rod; 604, the arc plate; 605, the air blowing assembly; 6051, the fixed rod; 6052, the annular plate; 6053, the viscous rod; 6054, the second telescopic rod; 6055, the top plate; 6056, the elastic outer ring; 606, the connecting rod; 607, the connecting hopper; 608, the cross frame; 609, the lifting rod. DETAILED DESCRIPTION

[0019] The application will be described in further detail below with reference to the drawings and specific embodiments. The embodiments of the application are given for illustrative and descriptive purposes only and are not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments are chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application in various embodiments and with various modifications as are suited to the particular use contemplated.

[0020] As Figures 1-8 shown, the application provides a technical solution: an embedded welding group device for nuclear power pipeline.

[0021] The lower support block 1 is provided at the bottom of the main pipeline, and the lower support block 1 is provided with the following components: The support frame 2 is installed on the top of the lower support block 1, and the top of the support frame 2 is detachably provided with a cover plate; The jack 4 is arranged inside the support frame 2; The upper support block 5 is connected with the telescopic end of the jack 4; The protection mechanism 3 is connected with the support frame 2, and the protection mechanism 3 comprises the air supply assembly 307, the air supply assembly 307 is connected with the upper support block 5, and the jack 4 is used to drive the upper support block 5 and the air supply assembly 307 to move in the vertical direction; The contact mechanism 6 is arranged above the upper supporting block 5, the contact mechanism 6 comprises push rods 603, the push rods 603 are arranged as electric push rods, the outer portions of the push rods 603 are provided with arc-shaped plates 604, the push rods 603 and the arc-shaped plates 604 are both provided with four, the top portions of the arc-shaped plates 604 are provided with connecting hoppers 607, the inner walls of the connecting hoppers 607 are provided with a plurality of guide rods, the push rods 603 are used for controlling the arc-shaped plates 604 and the connecting hoppers 607 to contact the inner walls of the group-paired pipes.

[0022] Before using the equipment, according to the inner diameters of the group-paired pipes, the push rods 603 are adjusted to corresponding strokes, the push rods 603 drive the arc-shaped plates 604 to move, then workers install the connecting hoppers 607 of corresponding sizes in the contact mechanism 6. Then the lower supporting block 1 is placed in the main pipe, the group-paired pipes are installed in the contact mechanism 6, the jack 4 is adjusted, the upper supporting block 5, the contact mechanism 6 and the group-paired pipes are driven by the jack 4 to move to a welding height. At this time, the workers perform embedded welding work on the main pipe and the group-paired pipes, the protection mechanism 3 and the contact mechanism 6 are adjusted, and the group-paired pipes are subjected to blowing treatment in the welding process.

[0023] The protection mechanism 3 further comprises: A through groove 301 is arranged in the inner portion of the lower supporting block 1; A channel 303 is arranged in the inner portion of the lower supporting block 1; An adjusting rod 302 is arranged in the inner portion of the through groove 301, a suction cup is arranged on the side of the inner portion of the through groove 301 away from the adjusting rod 302, when the equipment is used, the adjusting rod 302 is in the shortest stroke, at this time, the supporting frame 304 is not on the ground; A supporting frame 304 is connected with the adjusting rod 302, the supporting frame 304 is partially arranged in the through groove 301; A connecting pipe 305 is arranged in the inner portion of the supporting frame 2, a plurality of connecting pipes 305 are arranged, the inner portions of the connecting pipes 305 are provided with manually detachable plugs; A protection cylinder 306 is arranged on the top portion of the lower supporting block 1, the fixed end of the jack 4 is arranged in the inner portion of the protection cylinder 306; A side plate 308 is arranged in the inner portion of the supporting frame 2, the side plate 308 is connected with the protection cylinder 306, a ventilation opening is arranged in the inner portion of the side plate 308.

[0024] The placing process of the lower supporting block 1 when the equipment is not used: When the device is not used, the length of the plurality of adjusting rods 302 is adjusted at the same time, the adjusting rods 302 drive the support frame 304 to move, the support frame 304 in the through groove 301 is suction-fixed with the suction plate in the through groove 301, the support frame 304 in the through channel 303 is in contact with the ground, the lower support block 1 is kept in a horizontal state, and then the protection cylinder 306 and the jack 4 are in a vertical direction. When the device is not used, the lower support block 1 is provided in an arc shape at the bottom, the lower support block 1 drives the jack 4 to tilt, the position of the jack 4 is gradually tilted, and the installation work on the group of pipelines is affected.

[0025] When the device is used, the argon gas passing process is as follows: According to the installation direction of the lower support block 1 and the main pipeline, the block inside the connecting pipeline 305 in the appropriate position is selected to be disassembled, and the pipeline connected with argon is connected with the connecting pipeline 305. The argon gas enters the support frame 2 through the connecting pipeline 305, enters the upper support block 5 through the air supply assembly 307, and then enters the contact mechanism 6 through the upper support block 5.

[0026] The protection mechanism 3 is provided, and the contact surface with the ground or the main pipeline is adjusted according to the device state. When the device is in a non-use state, the support frame 304 falls to the ground, at this time, the lower support block 1 keeps a horizontal state, and the protection cylinder 306 and the jack 4 are in a vertical direction. When the device is used, the adjusting rod 302 is in the shortest stroke, at this time, the arc surface at the bottom of the lower support block 1 is in contact with the inner wall of the main pipeline, and the support frame 304 is not in contact with the inner wall of the main pipeline. When the device is not used, the lower support block 1 is provided in an arc shape at the bottom, the lower support block 1 drives the jack 4 to tilt, the position of the jack 4 is gradually tilted, and the installation work on the group of pipelines is affected.

[0027] The air supply assembly 307 comprises: The support column 3071 is installed at the top of the support frame 2, and the support column 3071 is provided with a plurality of; The center frame 3072 is connected with the support column 3071, and the telescopic end of the jack 4 slides in the center frame 3072; The first telescopic rod 3073 is installed at the top of the support column 3071; The connecting frame 3074 is connected with the telescopic end of the first telescopic rod 3073, the connecting frame 3074 is connected with the upper support block 5, when the jack 4 drives the upper support block 5 to ascend and descend, the upper support block 5 drives the connecting frame 3074 to ascend and descend, and the connecting frame 3074 stretches or compresses the first telescopic rod 3073; The groove 3076 is arranged in the inner part of the protection cylinder 306; The limiting ring 3077 is installed in the inner part of the groove 3076; The branch pipe 3075 is slidingly connected inside the groove 3076, and is connected with and communicates with the upper support block 5. The extension plate 3078 is installed outside the branch pipe 3075, and is used to contact the limiting ring 3077.

[0028] The working process of reinforcing the jack 4 by using the air supply assembly 307 is as follows: During the process of driving the upper support block 5 to ascend or descend by the jack 4, the telescopic end of the jack 4 slides up and down inside the center frame 3072, the upper support block 5 drives the connecting frame 3074 to ascend or descend, the connecting frame 3074 stretches or compresses the first telescopic rod 3073, thereby promoting the telescopic end of the jack 4 to move in the vertical direction, and reducing the possibility of the telescopic end of the jack 4 being completely or obliquely lowered.

[0029] The working process of supplying air for the contact mechanism 6 by using the air supply assembly 307 is as follows: With the jack 4 driving the upper support block 5 to ascend, the upper support block 5 drives the branch pipe 3075 to move upward, the branch pipe 3075 moves away from the groove 3076, and the branch pipe 3075 communicates with the inside of the support frame 2. With argon entering the support frame 2 through the connecting pipe 305, the argon will enter the upper support block 5 through the branch pipe 3075 in the support frame 2, and then enter the contact mechanism 6 through the upper support block 5.

[0030] With the jack 4 driving the upper support block 5 to descend, the upper support block 5 drives the branch pipe 3075 to move downward, and the bottom of the branch pipe 3075 gradually contacts the bottom surface of the groove 3076. After being blocked, the argon cannot enter the upper support block 5 through the branch pipe 3075.

[0031] By setting the air supply assembly 307, the upper support block 5 is driven to rise or fall by the jack 4 to control the communication between the branch pipe 3075 and the inside of the support frame 2. When the upper support block 5 is driven to rise by the jack 4, the branch pipe 3075 nozzle is away from the bottom surface of the groove 3076, the branch pipe 3075 is in communication with the inside of the support frame 2, and the argon in the support frame 2 can enter the upper support block 5 through the branch pipe 3075. When the upper support block 5 is driven to fall by the jack 4, the branch pipe 3075 nozzle gradually contacts the bottom surface of the groove 3076, the branch pipe 3075 is no longer in communication with the support frame 2, and the argon in the support frame 2 cannot enter the upper support block 5 through the branch pipe 3075. Then, by controlling the opening state of the jack 4, the inflow of argon is controlled to avoid the argon moving from the matching pipe to the user during the installation of the main pipe and the matching pipe, causing the user to inhale. And during the up and down movement of the branch pipe 3075, the extension plate 3078 is arranged outside the branch pipe 3075, and during the rising of the branch pipe 3075, the extension plate 3078 contacts the limiting ring 3077 to avoid the branch pipe 3075 from separating from the support frame 2, thereby avoiding the leakage of argon.

[0032] The contact mechanism 6 further comprises: An outer ring 601 mounted on the top of the upper support block 5; A center cylinder 602 mounted on the top of the upper support block 5, a push rod 603 mounted outside the center cylinder 602, and the center cylinder 602 in communication with the upper support block 5; A connecting rod 606 mounted on the top of the arc-shaped plate 604, and the connecting rod 606 being clamped with the connecting bucket 607; A cross 608 mounted inside the center cylinder 602; A lifting rod 609, which is an electric push rod 603, mounted on the top of the cross 608, and the top of the lifting rod 609 being mounted with a blowing assembly 605.

[0033] The working process of using the contact mechanism 6 to install the matching pipe is as follows: According to the inner diameter of the matching pipe, adjust the push rod 603 to the corresponding stroke, the push rod 603 drives the arc-shaped plate 604 to move, then select a connecting bucket 607 with appropriate size, and manually clamp the connecting bucket 607 with the connecting rod 606.

[0034] With the lower support block 1 fixed in the main pipe, the worker manually inserts the matching pipe into the outer ring 601, the inner wall of the pipe contacts the outer edge of the arc-shaped plate 604 and the connecting bucket 607, and multiple arc-shaped plates 604 limit the matching pipe. Then the worker adjusts the blowing assembly 605 to complete the installation work of the matching pipe.

[0035] The working process of using the contact mechanism 6 to blow the matching pipe is as follows: The argon gas in the support frame 2 enters the upper support block 5 through the branch pipe 3075, and then the argon gas enters the center cylinder 602 through the upper support block 5, adjusts the blowing assembly 605, and blows the inside of the pipe.

[0036] The blowing assembly 605 comprises: A fixed rod 6051 connected with the telescopic end of the lifting rod 609; A plurality of annular plates 6052 installed outside the fixed rod 6051, and a ventilation hole is formed in the inside of the annular plate 6052; A viscous rod 6053 installed on the top of the annular plate 6052, the viscous rod 6053 is composed of an annular rod and a vertical rod, and the annular rod and the vertical rod are both made of viscous material; A second telescopic rod 6054 installed at the end of the fixed rod 6051 away from the lifting rod 609; A top plate 6055 connected with the second telescopic rod 6054; An elastic outer ring 6056 installed outside the top plate 6055.

[0037] The working process of using the blowing assembly 605 to contact the pipe opening of the pipe group: According to the length of the pipe group, adjust the lifting rod 609 to the corresponding stroke, the lifting rod 609 drives the fixed rod 6051, the second telescopic rod 6054 and the top plate 6055 to move upward, and as the top plate 6055 is higher than the pipe opening of the pipe group, the worker manually pulls the elastic outer ring 6056 outward, so that the elastic outer ring 6056 is sleeved outside the pipe opening. Then adjust the lifting rod 609 to the initial state, the lifting rod 609 pulls the fixed rod 6051 and the second telescopic rod 6054 downward, and the second telescopic rod 6054 is in a stretched state.

[0038] The working process of using the blowing assembly 605 to blow the inside of the pipe group: When the welding work is in progress, the lifting rod 609 is started to reciprocate between the initial state and the first stroke, and the lifting rod 609 drives the uppermost annular plate 6052 to repeatedly enter and exit the center cylinder 602. When the uppermost annular plate 6052 is in the center cylinder 602, the argon gas moves upward through the ventilation holes in the annular plate 6052 to perform air supply treatment on the inside of the matched pipe; when the uppermost annular plate 6052 is slightly separated from the center cylinder 602, the argon gas moves through the gap between the annular plate 6052 and the connecting bucket 607, and blows along the arc surface of the connecting bucket 607 and the guide rod to the inner wall of the matched pipe, promoting the movement of impurity debris. When the gas supply is stopped, the impurity debris falls onto the annular plate 6052 at the top, and most of the impurity debris is adhered to the viscous rod 6053 on the annular plate 6052.

[0039] As the use time of the device increases, the stroke of the lifting rod 609 is adjusted, and the lower annular plate 6052 is replaced, and as the lifting rod 609 rises, the degree of stretching of the second telescopic rod 6054 gradually decreases.

[0040] By setting the contact mechanism 6 and the blowing assembly 605, the pipe opening of the matched pipe is closed by using the top plate 6055 and the elastic outer ring 6056, so as to avoid the outward movement of the argon gas to the worker's mouth when the blowing assembly blows in the matched pipe, causing the worker to inhale the argon gas. By controlling the annular plate 6052 to enter and exit the center cylinder 602, the direction of movement of the argon gas is controlled, and the inside or inner wall of the matched pipe is blown, promoting the movement of the debris and impurities, and further using the viscous rod 6053 to adhere most of the debris and impurities.

[0041] Working principle: before using the device, according to the inner diameter of the matched pipe, adjust the push rod 603 to the corresponding stroke, the push rod 603 drives the arc plate 604 to move, then select the connecting bucket 607 with appropriate size, and manually connect the connecting bucket 607 with the connecting rod 606. According to the installation direction of the lower support block 1 and the main pipe, select the block inside the connecting pipe 305 at the appropriate position, and connect the argon gas pipe with the connecting pipe 305.

[0042] Then install the lower support block 1 in the main pipe, and manually insert the matched pipe into the outer ring 601 by the worker, the inner wall of the pipe contacts with the outer edge of the arc plate 604 and the connecting bucket 607, and the plurality of arc plates 604 limit the matched pipe. Then adjust the blowing assembly 605 by the worker to complete the installation work of the matched pipe.

[0043] According to the length of the group of pipes, the lifting rod 609 is adjusted to the corresponding stroke, the lifting rod 609 drives the fixed rod 6051, the second telescopic rod 6054 and the top plate 6055 to move upwards, and as the top plate 6055 is higher than the pipe opening of the group of pipes, the worker manually pulls the elastic outer ring 6056 outward, so that the elastic outer ring 6056 is sleeved outside the pipe opening. Then adjust the lifting rod 609 to the initial state, the lifting rod 609 pulls the fixed rod 6051 and the second telescopic rod 6054 downwards, and the second telescopic rod 6054 is in a stretched state.

[0044] Adjust the jack 4, and drive the upper support block 5, the contact mechanism 6 and the group of pipes to move to the welding height by the jack 4.

[0045] As the jack 4 drives the upper support block 5 to rise, the upper support block 5 drives the branch pipe 3075 to move upwards, the branch pipe 3075 is away from the groove 3076, and the branch pipe 3075 is in communication with the inside of the support frame 2. As the argon enters the support frame 2 through the connecting pipe 305, the argon will enter the upper support block 5 through the branch pipe 3075 in the support frame 2, and then enter the center cylinder 602 through the upper support block 5.

[0046] At this time, the worker performs embedded welding work on the main pipe and the group of pipes, adjusts the protection mechanism 3 and the contact mechanism 6, and performs purging treatment on the group of pipes during the welding process.

[0047] When the welding work is performed, the lifting rod 609 is started to reciprocate between the initial state and the first stroke, and the lifting rod 609 drives the uppermost annular plate 6052 to repeatedly enter and exit the center cylinder 602. When the uppermost annular plate 6052 is in the center cylinder 602, the argon moves upwards through the ventilation holes in the annular plate 6052 to perform air supply treatment on the inside of the group of pipes; when the uppermost annular plate 6052 is slightly separated from the center cylinder 602, the argon moves through the gap between the annular plate 6052 and the connecting bucket 607, and blows along the arc surface of the connecting bucket 607 and the guide rod to the inner wall of the group of pipes, promoting the movement of impurities and debris. When the gas supply is stopped, the impurities and debris fall onto the top annular plate 6052, and most of the impurities and debris adhere to the sticky rod 6053 on the annular plate 6052.

[0048] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. An embedded welding set-up device for nuclear power piping comprising a lower support block (1) characterized in that, Also include: Support frame (2), the support frame (2) is installed at the top of the lower support block (1); Jack (4), the jack (4) is provided in the inside of support frame (2); Upper support block (5), the upper support block (5) is connected with the telescopic end of jack (4); Protective mechanism (3), the protective mechanism (3) is connected with support frame (2), the protective mechanism (3) includes air supply assembly (307), the air supply assembly (307) is connected with upper support block (5), the jack (4) is used for driving upper support block (5) and air supply assembly (307) movement in vertical direction; Contact mechanism (6), the contact mechanism (6) is provided above upper support block (5), the contact mechanism (6) includes push rod (603), the outside of push rod (603) is installed with arc plate (604), the top of arc plate (604) is provided with connecting hopper (607), push rod (603) is used for controlling arc plate (604) and connecting hopper (607) and the inner wall of group pair pipe contact.

2. The embedded welding group pair device for nuclear power pipeline according to claim 1, wherein: The protective mechanism (3) further comprises: Through slot (301), the through slot (301) is opened in the inside of lower support block (1); Passage (303), the passage (303) is opened in the inside of lower support block (1); Adjusting rod (302), the adjusting rod (302) is installed in the inside of through slot (301); Support frame (304), the support frame (304) is connected with adjusting rod (302).

3. The embedded welding group pair device for nuclear power pipeline according to claim 2, wherein: The protective mechanism (3) further comprises: Connecting pipe (305), the connecting pipe (305) is installed in the inside of support frame (2), the connecting pipe (305) is provided with a plurality of; Protective cylinder (306), the protective cylinder (306) is installed at the top of lower support block (1); Side plate (308), the side plate (308) is installed in the inside of support frame (2), the side plate (308) is connected with protective cylinder (306), the inside of side plate (308) is provided with air vent.

4. The embedded welding group pair device for nuclear power pipeline according to claim 3, wherein: The air supply assembly (307) comprises: Support column (3071), the support column (3071) is installed at the top of support frame (2), the support column (3071) is provided with a plurality of; Center frame (3072), the center frame (3072) is connected with support column (3071); First telescopic rod (3073), the first telescopic rod (3073) is installed at the top of support column (3071); Connecting frame (3074), the connecting frame (3074) is connected with the telescopic end of first telescopic rod (3073), the connecting frame (3074) is connected with upper support block (5).

5. The embedded welding group pair device for nuclear power pipeline according to claim 4, wherein: The air supply assembly (307) further comprises: a groove (3076) formed in the interior of the protective cylinder (306); a limiting ring (3077) installed in the interior of the groove (3076); a branch pipe (3075) slidingly connected in the interior of the groove (3076), the branch pipe (3075) being connected with the upper supporting block (5); an extension plate (3078) installed outside the branch pipe (3075).

6. The embedded welding group pairing device for nuclear power pipeline according to claim 1, characterized in that: the contact mechanism (6) further comprises: an outer ring (601) installed on the top of the upper supporting block (5); a center cylinder (602) installed on the top of the upper supporting block (5), the push rod (603) being installed outside the center cylinder (602); an adapter rod (606) installed on the top of the arc-shaped plate (604), the adapter rod (606) being clamped with the connecting hopper (607).

7. The embedded welding group pairing device for nuclear power pipeline according to claim 6, characterized in that: the contact mechanism (6) further comprises: a cross (608) installed in the interior of the center cylinder (602); a lifting rod (609) installed on the top of the cross (608), the top of the lifting rod (609) being provided with the air blowing assembly (605).

8. The embedded welding group pairing device for nuclear power pipeline according to claim 7, characterized in that: the air blowing assembly (605) comprises: a fixed rod (6051) connected with the telescopic end of the lifting rod (609); a ring-shaped plate (6052) installed outside the fixed rod (6051), the ring-shaped plate (6052) being provided with a plurality of ring-shaped plates (6052), the interior of the ring-shaped plate (6052) being formed with a ventilation hole; a viscous rod (6053) installed on the top of the ring-shaped plate (6052).

9. The embedded welding group pairing device for nuclear power pipeline according to claim 8, characterized in that: the air blowing assembly (605) further comprises: a second telescopic rod (6054) installed at the end of the fixed rod (6051) away from the lifting rod (609); a top plate (6055) connected with the second telescopic rod (6054); an elastic outer ring (6056) installed outside the top plate (6055).

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