Heating device suitable for girth welding of pipelines with multiple diameter specifications

Abstract

The utility model provides a heating device suitable for girth welding of pipelines with multiple diameter specifications, which comprises a heating mechanism, the heating mechanism is provided with a plurality of heating components, the plurality of heating components are detachably connected through connecting pieces and form a circle after being connected, each heating component comprises a gas pipe, a mounting frame and a burner, the gas pipes are welded to the outer wall of one side of the installation frame, the multiple burners are installed on the gas pipes, the gas pipes on every two adjacent heating assemblies are connected through a connecting hose, the end of the gas pipe in the heating assembly at the tail end is sealed through a plugging block, and the gas pipes in the heating assemblies at the tail end are connected through a connecting hose. And the connecting pieces are arranged in one-to-one correspondence with the positions of the connecting hoses and connected with the mounting frame, the heating mechanism composed of the multiple heating assemblies can be adjusted according to different diameters of pipelines, and the applicability is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of welding heating equipment, in particular to a heating device suitable for girth welding of pipelines with multiple diameters. Background Art

[0002] With the development of China's and the global economy, the demand for oil and natural gas continues to grow, and the construction of oil and gas pipelines is also advancing. Welding, as a key technology in oil and gas pipeline construction, plays an important role in ensuring the quality, safety, reliability and long-term stable operation of pipelines. Pipeline girth preheating and post-weld heat treatment are important means to improve welding quality. Traditional heating methods include laying a heating plate on the weld and spray gun flame heating. On the one hand, the heating plate method is difficult to meet the heating temperature requirements for thick-walled pipes, and on the other hand, it is difficult to meet the requirements of heating and welding the cylinder girth. The spray gun flame heating method generally uses a spray gun to manually heat the girth. This method is prone to local over-high or under-low temperatures, which is not conducive to the heating uniformity of the girth and subsequent welding operations.

[0003] The prior art also has an annular heating device, but this method requires that a corresponding heating device be made for each pipe diameter. Faced with pipes of various specifications, heating devices of different specifications must be made, which are difficult to reuse, resulting in a large amount of material waste and manpower waste, increasing production costs and reducing production efficiency.

[0004] The purpose of the utility model is to provide a heating device suitable for girth welding of pipes with multiple diameters, so as to solve the problems mentioned in the above background technology. Utility Model Content

[0005] To achieve the above-mentioned purpose, the utility model provides a heating device suitable for circumferential seam welding of pipes with multiple diameters, including a heating mechanism, wherein the heating mechanism has multiple heating components, and the multiple heating components are detachably connected by connecting pieces, and form a circle after connection, the heating components include a gas pipe, a mounting frame, and a burner, the gas pipe is welded to the outer wall of one side of the mounting frame, and several burners are installed on the gas pipe, the gas pipes on each adjacent heating component are connected by the connecting hose, and the end of the gas pipe in the terminal heating component is sealed by a blocking block, the connecting piece is arranged in a one-to-one correspondence with the position of each connecting hose, and is connected to the mounting frame.

[0006] As a further improvement of the present invention, the connecting part includes a connecting buckle, a bolt, and a nut. The connecting buckle includes a single buckle and a double buckle. The single buckle and the double buckle are respectively fixedly installed at both ends of the mounting frame. Starting from the mounting frame at the starting end, the single buckle is connected to the double buckle of the adjacent mounting frame through the bolt and the nut, and after being connected in sequence, the circular heating mechanism is formed.

[0007] As a further improvement of the present invention, the mounting frame on the heating assembly at the starting end and the end end is also connected to a bracket, the bottom of the bracket is fixedly connected to a base, and a through hole is opened at one end of the bracket away from the base, and the through hole is fixed to the double buckle through the bolt and the nut.

[0008] As a further improvement of the present invention, a plurality of mounting holes are evenly distributed on the inner side of the gas pipe, and a plurality of the burners are welded and fixed to each of the mounting holes in sequence.

[0009] As a further improvement of the present invention, the end of the gas pipe on the mounting bracket in the heating assembly at the starting end away from the connecting hose is connected to a gas inlet pipe, and the gas inlet pipe is used to communicate with a natural gas source.

[0010] As a further improvement of the present invention, the heating mechanism is composed of multiple sections of heating components connected together, and the diameter of the heating mechanism can be adjusted by disassembling some of the heating components.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model uses a circular heating mechanism composed of multi-segment heating components, each of which is detachable, thus realizing flexible adjustment of the diameter of the heating mechanism and being applicable to pipes of various diameters. Since the heating components are distributed in an arc shape and can be adjusted according to the pipe diameter, the uniformity of the heating process can be ensured, and the welding quality can be improved. The heating components are detachably connected by connectors, which makes adjustment convenient and quick, and reduces the difficulty and cost of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the utility model;

[0014] Figure 2 It is a left view of the present utility model.

[0015] In the figure: 1. Gas pipe; 2. Mounting bracket; 3. Connecting hose; 4. Bolt; 5. Bracket; 6. Base; 7. Sealing block; 8. Gas inlet pipe; 9. Burner; 10. Single buckle; 11. Double buckle; 12. Nut. DETAILED DESCRIPTION

[0016] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0018] The present invention will be described in further detail below with reference to the accompanying drawings.

[0019] Example 1:

[0020] See also Figure 1-2 The utility model provides a heating device suitable for girth welding of pipes with multiple diameters, including a heating mechanism, wherein the heating mechanism has multiple heating components, and the multiple heating components are detachably connected by connecting pieces, and form a circle after being connected. The heating component includes a gas pipe 1, a mounting frame 2, and a burner 9. The gas pipe 1 is welded to the outer wall of one side of the mounting frame 2, and several burners 9 are installed on the gas pipe 1. The gas pipes 1 on each adjacent heating component are connected by the connecting hose 3, and the end of the gas pipe 1 in the terminal heating component is sealed by a blocking block 7. The connecting piece is arranged in a one-to-one correspondence with the position of each connecting hose 3 and is connected to the mounting frame 2.

[0021] The heating mechanism is composed of multiple sections of heating components connected together, and the diameter of the heating mechanism can be adjusted by disassembling some of the heating components.

[0022] In this embodiment, the multi-stage heating components constitute a circular heating mechanism, and each heating component is detachable, realizing flexible adjustment of the diameter of the heating mechanism, which is suitable for pipes of various diameters. Since the heating components are distributed in an arc shape and can be adjusted according to the pipe diameter, the uniformity of the heating process can be ensured and the welding quality can be improved. The heating components are detachably connected by connectors, which makes adjustment convenient and quick, reducing the difficulty and cost of operation.

[0023] Example 2:

[0024] On the basis of the first embodiment, in this embodiment, Figure 1-2As shown, the connecting parts include connecting buckles, bolts 4, and nuts. The connecting buckles include a single buckle 10 and a double buckle 11. The single buckle 10 and the double buckle 11 are respectively fixedly installed at both ends of the mounting frame 2. Starting from the mounting frame 2 at the starting end, the single buckle 10 is connected to the double buckle 11 of the adjacent mounting frame 2 through the bolt 4 and the nut, and after being connected in sequence, the circular heating mechanism is formed.

[0025] The end of the gas pipe 1 on the mounting frame 2 in the heating assembly at the starting end, which is away from the connecting hose 3, is connected to a gas inlet pipe 8, and the gas inlet pipe 8 is used to communicate with a natural gas source.

[0026] During use, a single buckle 10 and a double buckle 11 are set at both ends of the mounting frame 2, and the single buckle 10 and the double buckle 11 between adjacent mounting frames 2 are locked and fixed by bolts 4 and nuts. The setting of the bolts 4 and nuts can facilitate the rapid disassembly and assembly between the mounting frames 2, and the operation is simple, thereby improving work efficiency. In this embodiment, the double buckles 11 and the single buckle 10 are not respectively set at the adjacent parts of the mounting frames 2 in the heating components at the starting end and the end end. The gas inlet pipe 8 connected to the gas pipe 1 on the mounting frame 2 at the starting end can provide a heating source for the heating mechanism, which is convenient for heating. At the same time, the mounting frames 2 in each heating component are connected and fixed by bolts 4 and nuts 12, which is convenient for quickly disassembling part of the heating components according to actual needs, thereby adjusting the diameter of the heating mechanism to adapt to the use of pipes with different diameters, and has a wide range of uses.

[0027] Example 3:

[0028] Based on the first embodiment, in this embodiment, Figure 1 As shown, the mounting frame 2 on the heating assembly at the starting end and the end end is also connected to a bracket 5, the bottom of the bracket 5 is fixedly connected to a base 6, and a through hole is opened at the end of the bracket 5 away from the base 6, and the through hole is connected and fixed to the double buckle 11 through the bolt 4 and the nut.

[0029] A plurality of mounting holes are evenly distributed on the inner side of the gas pipe 1 , and a plurality of the burners 9 are welded and fixed to each of the mounting holes in sequence.

[0030] When in use, the through hole on the bracket 5 is aligned with the double buckle 11 on the mounting frame 2, and then the bolt 4 is inserted from one side of the double buckle 11, passes through the single buckle 10 in turn, extends to the other side of the double buckle 11, and then passes through the through hole on the bracket 5, and finally is locked and fixed by the nut and bolt 4, to complete the connection between the bracket 5 and the heating mechanism. In this embodiment, by providing a through hole on the bracket 5, it is convenient to quickly connect and fix with the double buckle 11 on the mounting frame 2 through the bolt 4 and the nut. At the same time, the setting of the bracket 5 and the base 6 can provide support for the heating mechanism, which is convenient for operation of the pipeline. By opening a number of mounting holes on the gas pipe 1, it is convenient to connect a number of burners 9. A number of burners 9 are arranged along the curved surface of the gas pipe 1 to facilitate matching with the curved surface of the pipeline, which is beneficial to make it heat more evenly when heating the pipeline and improve the heating quality.

[0031] The above description of the present invention is illustrative in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A heating device suitable for girth welding of pipes with multiple diameters, characterized by: The invention comprises a heating mechanism, wherein the heating mechanism has a plurality of heating components, wherein the plurality of heating components are detachably connected to each other through a connecting piece and form a circle after being connected, wherein the heating component comprises a gas pipe (1), a mounting frame (2), and a burner (9), wherein the gas pipe (1) is welded to an outer wall of one side of the mounting frame (2), and a plurality of burners (9) are mounted on the gas pipe (1), wherein the gas pipes (1) on each adjacent heating component are connected to each other through a connecting hose (3), and the end of the gas pipe (1) in the terminal heating component is sealed by a blocking block (7), and the connecting piece is arranged in a one-to-one correspondence with the position of each connecting hose (3) and is connected to the mounting frame (2).

2. The heating device for girth welding of pipes with multiple diameters according to claim 1 is characterized in that: The connecting member comprises a connecting buckle, a bolt (4), and a nut. The connecting buckle comprises a single buckle (10) and a double buckle (11). The single buckle (10) and the double buckle (11) are respectively fixedly mounted on the two ends of the mounting frame (2). Starting from the mounting frame (2) at the starting end, the single buckle (10) is connected to the double buckle (11) of the adjacent mounting frame (2) through the bolt (4) and the nut. After being connected in sequence, the circular heating mechanism is formed.

3. The heating device for girth welding of pipes with multiple diameters according to claim 2 is characterized in that: The mounting frame (2) on the heating assembly at the starting end and the end end is further connected to a bracket (5), the bottom of the bracket (5) is fixedly connected to a base (6), and a through hole is provided at one end of the bracket (5) away from the base (6), and the through hole is connected and fixed to the double buckle (11) through the bolt (4) and the nut.

4. The heating device for girth welding of pipes with multiple diameters according to claim 1 is characterized in that: A plurality of mounting holes are evenly distributed on the inner side of the gas pipe (1), and a plurality of the burners (9) are welded and fixed to each of the mounting holes in sequence.

5. The heating device for girth welding of pipes with multiple diameters according to claim 1 is characterized in that: The end of the gas pipe (1) on the mounting frame (2) in the heating assembly at the starting end, away from the connecting hose (3), is connected to a gas inlet pipe (8), and the gas inlet pipe (8) is used to communicate with a natural gas source.

6. The heating device suitable for girth welding of pipes with multiple diameters according to claim 1, characterized in that: The heating mechanism is composed of multiple sections of heating components connected together, and the diameter of the heating mechanism can be adjusted by disassembling some of the heating components.

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