Integrated h-bar structure

Abstract

The utility model discloses integrated H barrel structure relates to the technical field of supercharged expander, first L type forge piece and second L type forge piece are two groups of L type forge pieces, wherein first L type forge piece and second L type forge piece are opposite distribution, and between the detachable fixed structure is fixed, and the detachable fixed structure includes side flange and fixed bolt, and the side flange fixed mounting is in the second L type forge piece inboard, is provided with recess in the side flange inboard, is installed with fixed bolt through recess, and the corresponding position of first L type forge piece is provided with internal thread hole, and the detachable fixing of first L type forge piece and second L type forge piece is completed by inserting first L type forge piece into internal thread hole. The utility model discloses through the detachable fixing of first L type forge piece and second L type forge piece by inserting first L type forge piece into internal thread hole, through the recess in the positioning protruding and being connected to first L type forge piece, the convenience of installation is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of booster expanders, and in particular to an integrated H-barrel structure. Background Technology

[0002] Forging is a processing method that uses forging machinery to apply pressure to a metal billet, causing it to undergo plastic deformation to obtain forgings with specific mechanical properties, shapes, and dimensions. It is one of the two major components of forging. Forging can eliminate defects such as casting porosity that occur during the smelting process, optimize the microstructure, and, because it preserves the complete metal flow lines, the mechanical properties of forgings are generally superior to those of castings made of the same material. Important parts in related machinery that bear high loads and operate under harsh conditions are mostly forgings, except for simpler shapes that can be made from rolled plates, profiles, or welded parts.

[0003] Currently, most booster expanders adopt an H-shaped cast barrel structure, which facilitates the assembly and installation of related components. However, this structure is mostly manufactured using castings. Besides requiring additional molds, the strength of castings is lower than that of forgings. In applications with high pressure levels and extreme temperatures, deformation can easily occur, affecting equipment operation. Castings also carry the risk of casting defects, as the thicker walls make these defects difficult to correct. However, using integral forging would be extremely expensive and time-consuming in terms of materials and processing. Previously, the middle barrel was made of casting, and the flanges on both sides were forged and connected by bolts. This method had low strength under high pressure and posed a risk of leakage at the joints.

[0004] However, such structures are currently mostly made by casting. In addition to the need to prepare molds, the strength of castings is not as good as that of forgings. In some applications with high pressure and extreme temperature, deformation is likely to occur, which will affect the operation of the equipment. Castings are also at risk of casting defects, because the casting wall is thick and casting defects are not easy to solve. However, if the integral forging process is used, the material and processing costs will be very expensive and time-consuming. Therefore, we propose an integral H-barrel structure. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an integrated H-barrel structure, solving the technical problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: Integrated H-barrel structure, including First L-shaped forging and second L-shaped forging, The first L-shaped forging and the second L-shaped forging are two sets of L-shaped forgings, in which the first L-shaped forging and the second L-shaped forging are distributed facing each other and are fixed together by a detachable fixing structure.

[0007] Preferably, the detachable fixing structure includes a side flange and fixing bolts. The side flange is fixedly installed inside the second L-shaped forging. A groove is provided inside the side flange, through which the fixing bolts are installed. A corresponding position of the first L-shaped forging is provided with an internal threaded hole. The detachable fixing of the first L-shaped forging and the second L-shaped forging is completed by inserting the first L-shaped forging into the internal threaded hole.

[0008] Preferably, the inner side of the second L-shaped forging is provided with a positioning protrusion, which is a circular protrusion block. The inner side of the corresponding first L-shaped forging is provided with a groove. The positioning protrusion is engaged with the groove of the first L-shaped forging to pre-position the installation of the detachable fixing structure on both sides, so as to better align the fixing bolts with the installation holes and improve the convenience of installation.

[0009] Preferably, a weld is provided at the connection between the first L-shaped forging and the second L-shaped forging.

[0010] Preferably, wedge-shaped grooves are provided on the weld seams before welding, and welding is performed at the positions of the wedge-shaped grooves to integrate the first L-shaped forging and the second L-shaped forging, thereby achieving integrated fixation of the first L-shaped forging. Compared with a detachable fixing structure, this provides better stability.

[0011] (III) Beneficial Effects 1. The first L-shaped forging is inserted into the internal threaded hole to complete the detachable fixing of the first L-shaped forging and the second L-shaped forging. The positioning protrusion is engaged with the groove of the first L-shaped forging to pre-position the installation of the detachable fixing structure on both sides, so as to better align the fixing bolts with the installation holes and improve the convenience of installation.

[0012] 2. A weld is provided at the connection between the first L-shaped forging and the second L-shaped forging. Before welding, wedge-shaped grooves are provided at the welds. Welding is performed at the wedge-shaped grooves to integrate the first L-shaped forging and the second L-shaped forging, thereby achieving integrated fixation of the first L-shaped forging. Compared with a detachable fixing structure, this solution enhances the strength of the H-shaped barrel structure and its adaptability to high pressure and extreme temperatures, while also appropriately reducing manufacturing costs. This solution uses two separate L-shaped forgings, which are connected by welding. Subsequent annealing and cryogenic treatment are then used to prepare the H-shaped barrel forging structure. This not only improves structural strength but also greatly saves on the overall forging processing and material consumption costs. Attached Figure Description

[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is an overall structural diagram of the integrated H-barrel structure in Example 1; Figure 2 This is a schematic diagram of the split structure of the integrated H-barrel in Example 1; Figure 3 This is a structural diagram of the integrated H-barrel structure in Example 2; Figure 4 This is a side view of the first L-shaped forging in the integrated H-barrel structure of this utility model; Figure 5 This is a side view of the second L-shaped forging in the integrated H-barrel structure of this utility model.

[0015] Legend: 1. First L-shaped forging; 2. Second L-shaped forging; 3. Positioning protrusion; 4. Side flange; 5. Fixing bolt; 6. Weld. Detailed Implementation

[0016] This application embodiment solves the problem of connection and fixing structure design in the prior art by providing an integrated H-barrel structure. The first L-shaped forging and the second L-shaped forging are detachably fixed by inserting the first L-shaped forging into the internal threaded hole, and the positioning protrusion is snapped into the groove of the first L-shaped forging.

[0017] Example 1 The technical solution in this application embodiment is to solve the problem of the above-mentioned connection and fixing structure design, and the overall idea is as follows: like Figure 1-2 As shown, to address the problems existing in the prior art, this utility model provides an integrated H-shaped barrel structure, including a first L-shaped forging 1 and a second L-shaped forging 2. The first L-shaped forging 1 and the second L-shaped forging 2 are two sets of L-shaped forgings, wherein the first L-shaped forging 1 and the second L-shaped forging 2 are distributed facing each other and are fixed together by a detachable fixing structure. comprehensive Figure 4-5 As shown, the detachable fixing structure includes a side flange 4 and fixing bolts 5. The side flange 4 is fixedly installed inside the second L-shaped forging 2. A groove is provided inside the side flange 4, through which the fixing bolts 5 are installed. A corresponding position of the first L-shaped forging 1 is provided with an internal threaded hole. The detachable fixing of the first L-shaped forging 1 and the second L-shaped forging 2 is completed by inserting the first L-shaped forging 1 into the internal threaded hole. The second L-shaped forging 2 has a positioning protrusion 3 on its inner side. The positioning protrusion 3 is a circular protrusion block. The corresponding first L-shaped forging 1 has a groove on its inner side. The positioning protrusion 3 is engaged with the groove of the first L-shaped forging 1 to pre-position the installation of the detachable fixing structure on both sides, so as to better align the fixing bolt 5 with the installation hole and improve the convenience of installation.

[0018] Example 2 Based on Example 1, this embodiment uses forged flanges on both sides, which are then connected by bolts. This results in lower strength under high pressure and a risk of leakage at the connection. The overall approach is as follows: like Figure 3 As shown, a weld 6 is provided at the connection between the first L-shaped forging 1 and the second L-shaped forging 2. Before welding, the weld 6 is provided with wedge-shaped grooves. Welding is performed at the positions of the wedge-shaped grooves to integrate the first L-shaped forging 1 and the second L-shaped forging 2, thereby achieving integrated fixation of the first L-shaped forging 1. Compared with a detachable fixing structure, it has better stability.

[0019] In view of the ability to enhance the strength of the H-shaped barrel structure and its adaptability to high pressure and extreme temperature, while also appropriately reducing the production and manufacturing costs, this solution adopts two separate L-shaped forgings, which are connected by welding and then subjected to subsequent annealing and cryogenic treatment to prepare the H-shaped barrel forging structure for use. This not only improves the structural strength but also greatly saves on the cost of overall forging processing and material consumption.

[0020] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An integrated H-shaped barrel structure, comprising a first L-shaped forging (1) and a second L-shaped forging (2), characterized in that: The first L-shaped forging (1) and the second L-shaped forging (2) are two sets of L-shaped forgings, wherein the first L-shaped forging (1) and the second L-shaped forging (2) are distributed facing each other and are fixed by a detachable fixing structure. The detachable fixing structure includes a side flange (4) and fixing bolts (5). The side flange (4) is fixedly installed inside the second L-shaped forging (2). The side flange (4) has a groove inside, through which the fixing bolts (5) are installed. The first L-shaped forging (1) has an internal threaded hole at the corresponding position. The detachable fixing of the first L-shaped forging (1) and the second L-shaped forging (2) is completed by inserting the first L-shaped forging (1) into the internal threaded hole.

2. The integrated H-barrel structure as described in claim 1, characterized in that: The second L-shaped forging (2) has a positioning protrusion (3) on its inner side. The positioning protrusion (3) is a circular protrusion block. The corresponding first L-shaped forging (1) has a groove on its inner side. The positioning protrusion (3) is engaged with the groove of the first L-shaped forging (1) to pre-position the installation of the detachable fixing structure on both sides.

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