Pressure vessel welding preheating device with uniform heating structure
By designing a pressure vessel welding preheating device with a uniform heating structure, the pressure vessel is preheated uniformly and rapidly using components such as a fixed seat, rotating shaft, slide groove, and sliding block. This solves the problem of uneven preheating of Cr-Mo steel before welding, reduces the labor intensity of workers, and improves preheating efficiency.
Patent Information
- Application Number
- CN202520279480.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In existing technologies, uneven preheating or failure to reach the required temperature before welding Cr-Mo steel for pressure vessels can easily lead to post-weld cracks, increasing the risk of quality accidents and increasing the labor intensity for workers.
Design a pressure vessel welding preheating device with a uniform heating structure. The device uses components such as a fixed base, rotating shaft, slide groove, sliding block, clamping plate, motor and heating ring to achieve uniform and rapid preheating of the pressure vessel. The motor and heating ring are controlled to open and close by a controller.
It achieves uniform and rapid preheating of pressure vessels, reduces the labor intensity of workers, improves preheating efficiency and heating effect, and simplifies operation procedures.
Smart Images
Figure CN223670513U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pressure vessel welding technical field especially relates to a pressure vessel welding preheating device with uniform heating structure. BACKGROUND
[0002] Pressure vessel Cr-Mo steel product, according to the manufacture specification, before welding, must be preheated, if preheating is not uniform or preheating temperature does not reach the requirement, after welding, is easy to produce crack, causes quality accident or personal casualty, causes unnecessary economic loss.
[0003] Cr-Mo steel welding often adopts flame gun to preheat or electric heating sheet to preheat, encounters large diameter pressure vessel and does not have oversized electric heating sheet to preheat, and adopts flame gun to preheat, and the disadvantage of such preheating is that the preheating range is small, and manpower is wasted, and the worker needs to hold the heating gun to heat all the time, and the worker's labor intensity is high, and the heating gun is moved with the gun head only, and the temperature after heating drops rapidly with the movement of the gun head position, and the temperature does not reach the preheating temperature range of Cr-Mo steel, and aiming at the above problems, we launch a pressure vessel welding preheating device with uniform heating structure. UTILITY MODEL CONTENTS
[0004] The utility model discloses a pressure vessel welding preheating device with uniform heating structure, aims at solving the technical problems that the worker needs to hold the heating gun to heat all the time, and the worker's labor intensity is high, and the heating gun is moved with the gun head only, and the temperature after heating drops rapidly with the movement of the gun head position, and the temperature does not reach the preheating temperature range of Cr-Mo steel.
[0005] In order to realize the above-mentioned purpose, the utility model has adopted following technical scheme:
[0006] The utility model provides a pressure vessel welding preheating device with uniform heating structure, including fixed base, one side of the top of fixed base is fixedly connected with support plate, one side of the top of support plate is fixedly connected with top plate, one side of fixed base is fixedly connected with no.
[0007] Through setting preheating mechanism, the pressure vessel body can be uniformly and quickly preheated, compared with the manual preheating mode, the efficiency is higher, the heating effect is better, the labor intensity of worker is reduced, the structure is simple, and the practicality is stronger.
[0008] In a preferred scheme, the preheating assembly includes a fixed plate, the fixed plate is symmetrically fixedly connected to the bottom of the top plate, one of the two fixed plates is fixedly connected with a second motor outside, a reciprocating screw rod is rotatably connected between the two fixed plates, the moving frame is screw connected to the outside of the reciprocating screw rod, and the heating ring is symmetrically fixedly connected to the bottom of the moving frame.
[0009] Through the preheating assembly, the pressure vessel body can be quickly preheated.
[0010] In a preferred scheme, two fixed plates are provided with a pressure vessel body.
[0011] Through the setting of the pressure vessel body, preheating preparation can be carried out before welding.
[0012] In a preferred scheme, two fixed plates are symmetrically fixedly connected with a cross rail, the cross rail and the moving frame are slidably connected, and one end of the reciprocating screw rod is fixedly connected with the output end of the second motor.
[0013] Through the setting of the cross rail, the moving frame can move more stably and will not shake.
[0014] In a preferred scheme, the top side of the fixing base is fixedly connected with a controller.
[0015] The controller is arranged to facilitate the opening and closing of the first motor, the second motor and the heating ring by the staff.
[0016] In a preferred scheme, the first motor, the second motor and the heating ring are electrically connected with the controller.
[0017] The first motor, the second motor and the heating ring are electrically connected with the controller, reducing the operation steps and improving the operation efficiency.
[0018] The pressure vessel welding preheating device with the uniform heating structure has the following advantages:
[0019] Firstly, the preheating mechanism is arranged to uniformly and quickly preheat the pressure vessel body, which is more efficient and has better heating effect than the manual preheating method, reduces the labor intensity of workers, and has a simple structure and high practicality.
[0020] Secondly, the cross slide rail is arranged to make the moving frame move more stably without shaking, and the controller is arranged to facilitate the opening and closing of the first motor, the second motor and the heating ring by the staff, reducing the operation steps and improving the operation efficiency. DETAILED DESCRIPTION
[0021] Figure 1 The utility model provides a kind of pressure vessel welding preheating device with the uniform heating structure of three-dimensional schematic view.
[0022] Figure 2 The utility model provides a kind of pressure vessel welding preheating device with the uniform heating structure of three-dimensional bottom view schematic view.
[0023] Figure 3 The utility model provides a kind of pressure vessel welding preheating device with the uniform heating structure of fixing assembly three-dimensional schematic view.
[0024] Figure 4 The utility model provides a kind of pressure vessel welding preheating device with the uniform heating structure of fixing assembly three-dimensional schematic view.
[0025] Figure 5 The utility model provides a kind of pressure vessel welding preheating device with the uniform heating structure of fixing assembly three-dimensional schematic view.
[0026] Figure 6The utility model provides a kind of pressure vessel welding preheating device's preheating subassembly three-dimensional schematic view with uniform heating structure is proposed.
[0027] In the drawing: 1, fixed seat;2, support plate;3, top plate;4, No. 1 motor;51, fixed disc;52, sliding groove;53, sliding block;54, clamping plate;55, rotating shaft;56, rotating disc;57, pull rod;58, connecting block;59, electric telescopic rod;61, fixed plate;62, reciprocating screw;63, No. 2 motor;64, cross slide;65, moving frame;66, heating ring;7, pressure vessel main body;8, controller. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and indicated in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0029] The pressure vessel welding preheating device with uniform heating structure disclosed by the utility model is mainly applied to the scene of pressure vessel welding.
[0030] Reference Figure 1 - Figure 6The utility model provides a pressure vessel welding preheating device with uniform heating structure, including fixed seat 1, one side of the top of fixed seat 1 is fixedly connected with support plate 2, one side of the top of support plate 2 is fixedly connected with top plate 3, one side of fixed seat 1 is fixedly connected with no. One motor 4 is equipped with preheating mechanism on the top of fixed seat 1, and preheating mechanism includes fixed assembly and preheating assembly, and fixed assembly and preheating assembly are used in cooperation, and fixed assembly includes two fixed discs 51, and two fixed discs 51 are arranged on the top of fixed seat 1, and pressure vessel main part 7 is equipped between two fixed discs 51, and the top of fixed seat 1 is symmetrically connected with rotating shaft 55, and two rotating shafts 55 are fixedly connected with two fixed discs 51 respectively, and the outer side of two rotating shafts 55 is rotatably connected with rotating disc 56, and the inside of two fixed discs 51 is circularly arranged with sliding groove 52, and the inside of sliding groove 52 is slidably connected with sliding block 53, and the outer side of sliding block 53 is fixedly connected with clamping plate 54, and the outer side of rotating disc 56 is circularly rotatably connected with pull rod 57, and the other end of pull rod 57 is rotatably connected with sliding block 53, and the side of two fixed discs 51 away from each other is equipped with electric telescopic rod 59, and the two ends of electric telescopic rod 59 are fixedly connected with connecting block 58 respectively, and two connecting blocks 58 are fixedly connected with two sliding blocks 53 respectively, and one of two rotating shafts 55 is fixedly connected with the output end of no. Preheating assembly includes fixed plate 61, and fixed plate 61 is fixedly connected on the bottom of top plate 3 symmetrically, and one of two fixed plates 61 is fixedly connected with no. Two fixed plates 61 are rotatably connected with reciprocating screw rod 62, and reciprocating screw rod 62 is screwedly connected with moving frame 65, and the bottom of moving frame 65 is fixedly connected with heating ring 66 symmetrically. Two fixed discs 51 are equipped with pressure vessel main part 7. One end of reciprocating screw rod 62 is fixedly connected with the output end of no. Two fixed plates 61.
[0031] The utility model discloses a pressure vessel welding preheating device with uniform heating structure, including fixed seat 1, one side of the top of fixed seat 1 is fixedly connected with support plate 2, one side of the top of support plate 2 is fixedly connected with top plate 3, one side of fixed seat 1 is fixedly connected with no. One motor 4 is equipped with preheating mechanism on the top of fixed seat 1, and preheating mechanism includes fixed assembly and preheating assembly, and fixed assembly and preheating assembly are used in cooperation, and fixed assembly includes two fixed discs 51, and two fixed discs 51 are arranged on the top of fixed seat 1, and pressure vessel main part 7 is equipped between two fixed discs 51, and the top of fixed seat 1 is symmetrically connected with rotating shaft 55, and two rotating shafts 55 are fixedly connected with two fixed discs 51 respectively, and the outer side of two rotating shafts 55 is rotatably connected with rotating disc 56, and the inside of two fixed discs 51 is circularly arranged with sliding groove 52, and the inside of sliding groove 52 is slidably connected with sliding block 53, and the outer side of sliding block 53 is fixedly connected with clamping plate 54, and the outer side of rotating disc 56 is circularly rotatably connected with pull rod 57, and the other end of pull rod 57 is rotatably connected with sliding block 53, and the side of two fixed discs 51 away from each other is equipped with electric telescopic rod 59, and the two ends of electric telescopic rod 59 are fixedly connected with connecting block 58 respectively, and two connecting blocks 58 are fixedly connected with two sliding blocks 53 respectively, and one of two rotating shafts 55 is fixedly connected with the output end of no. Preheating assembly includes fixed plate 61, and fixed plate 61 is fixedly connected on the bottom of top plate 3 symmetrically, and one of two fixed plates 61 is fixedly connected with no. Two fixed plates 61 are rotatably connected with reciprocating screw rod 62, and reciprocating screw rod 62 is screwedly connected with moving frame 65, and the bottom of moving frame 65 is fixedly connected with heating ring 66 symmetrically. Two fixed discs 51 are equipped with pressure vessel main part 7. One end of reciprocating screw rod 62 is fixedly connected with the output end of no.
[0032] In the technical solution, considering that a worker needs to hold a heating gun with one hand to perform heating, the worker's labor intensity is high, and the heating gun has only one gun head, so the temperature after heating decreases rapidly with the movement of the gun head position, and the temperature cannot reach the preheating temperature range specified for Cr-Mo steel, in order to solve such problems, the specific operation is as follows:
[0033] With reference to Figure 1 Figure 6 In a preferred embodiment, the two fixed plates 61 are symmetrically and fixedly connected with a cross slide rail 64, and the cross slide rail 64 is slidingly connected with a moving frame 65. The top side of the fixed seat 1 is fixedly connected with a controller 8. The first motor 4, the second motor 63 and the heating ring 66 are electrically connected with the controller 8.
[0034] In the embodiment, the cross slide rail 64 is arranged, so that the moving frame 65 can move more stably and will not shake. The controller 8 is arranged, so that the operator can conveniently control the opening and closing of the first motor 4, the second motor 63 and the heating ring 66, the operation steps are reduced, and the operation efficiency is improved.
[0035] Working principle: in actual use, the operator places the pressure container body 7 between the two fixed discs 51, and then starts the electric telescopic rod 59. The telescopic end of the electric telescopic rod 59 is retracted to drive the two sliding blocks 53 in the slide grooves 52 to slide towards each other, thereby driving the rotating disc 56 to rotate. The four sliding blocks 53 in the slide grooves 52 slide towards each other, thereby driving the four clamping plates 54 to slide towards each other, until the pressure container body 7 is clamped and fixed on the top of the fixed seat 1. Then, the first motor 4 is started. The output end of the first motor 4 rotates to drive one of the rotating shafts 55 to rotate, thereby driving the pressure container body 7 to start rotating. At this time, the operator starts the heating ring 66 and the second motor 63. The output end of the second motor 63 rotates to drive the reciprocating screw rod 62 to rotate, and the reciprocating screw rod 62 rotates to drive the moving frame 65 and the heating ring 66 to reciprocate on the outside of the pressure container body 7, thereby starting to heat the pressure container body 7.
[0036] The above description is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. The substitution can be a substitution of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent substitution or change should be covered within the protection scope of the present application.
Claims
1. A pressure vessel welding preheating device with uniform heating structure, comprising a fixed seat (1), characterized in that: The top side of the fixed seat (1) is fixedly connected with a supporting plate (2), the top side of the supporting plate (2) is fixedly connected with a top plate (3), one side of the fixed seat (1) is fixedly connected with a first motor (4), and the top of the fixed seat (1) is provided with a preheating mechanism; the preheating mechanism comprises a fixed assembly and a preheating assembly, and the fixed assembly and the preheating assembly are used in cooperation. The fixed assembly comprises two fixed discs (51), the two fixed discs (51) are arranged on the top of the fixed seat (1), a pressure container body (7) is arranged between the two fixed discs (51), the top of the fixed seat (1) is symmetrically connected with rotating shafts (55), the two rotating shafts (55) are fixedly connected with the two fixed discs (51) respectively, rotating discs (56) are rotatably connected to the outer sides of the two rotating shafts (55), sliding grooves (52) are arranged in a circumferential array in the interiors of the two fixed discs (51), sliding blocks (53) are slidably connected in the interiors of the sliding grooves (52), clamping plates (54) are fixedly connected to the outer sides of the sliding blocks (53), pull rods (57) are rotatably connected to the outer sides of the rotating discs (56) in a circumferential array, the pull rods (57) are rotatably connected to the sliding blocks (53) at the other ends thereof, electric telescopic rods (59) are arranged on the sides, away from each other, of the two fixed discs (51), the two ends of each electric telescopic rod (59) are fixedly connected with a connecting block (58), and the two connecting blocks (58) are fixedly connected with two sliding blocks (53) respectively; one of the two rotating shafts (55) is fixedly connected with the output end of the first motor (4).
2. The pressure vessel welding preheating device with uniform heating structure according to claim 1, characterized in that: The preheating assembly comprises fixed plates (61), the fixed plates (61) are fixedly connected to the bottom of the top plate (3) in a symmetrical mode, one of the two fixed plates (61) is fixedly connected with a second motor (63) at the outer side thereof, a reciprocating screw rod (62) is rotatably connected between the two fixed plates (61), a moving frame (65) is threadedly connected to the outer side of the reciprocating screw rod (62), heating rings (66) are fixedly connected to the bottom of the moving frame (65) in a symmetrical mode, and one end of the reciprocating screw rod (62) is fixedly connected with the output end of the second motor (63).
3. The pressure vessel welding preheating device with uniform heating structure according to claim 1, characterized in that: A pressure container body (7) is arranged between the two fixed discs (51).
4. The pressure vessel welding preheating device with uniform heating structure according to claim 2, characterized in that: Cross-shaped sliding rails (64) are fixedly connected between the two fixed plates (61) in a symmetrical mode, and the cross-shaped sliding rails (64) are slidably connected with the moving frame (65).
5. The pressure vessel welding preheating device with uniform heating structure according to claim 1, characterized in that: A controller (8) is fixedly connected to the top side of the fixed seat (1).
6. The pressure vessel welding preheating device with uniform heating structure according to claim 1, characterized in that: The first motor (4), the second motor (63) and the heating rings (66) are electrically connected with the controller (8).