Gas turbine exhaust diffuser crack welding device

Abstract

The utility model discloses a gas turbine exhaust diffuser crack welding device which comprises a diffuser body, a welded junction is welded to the diffuser body along the outer side of the circumference, a safety plate is welded to the side, located on the welded junction, of the diffuser body, and a welding fixing structure is arranged on the side, located on the welded junction, of the diffuser body. The welding fixing structure comprises a first clamping ring, a second clamping ring and a hinge, and the first clamping ring is connected with the second clamping ring through the hinge. The welding fixing structure has the advantages that the welding fixing structure can be conveniently sleeved and clamped on the diffuser body through the hinge in the first clamping ring and the second clamping ring; and therefore, a worker can conveniently insert the limiting rod into the limiting opening to limit and fix the to-be-welded safety boards for welding operation, and it is guaranteed that the intervals of the welded safety boards are the same.

Description

Technical Field

[0001] The utility model relates to the technical field of gas engine exhaust, in particular to a gas engine exhaust diffuser crack welding device. Background Art

[0002] During the use of the gas turbine, a diffuser is required. The diffuser can effectively control the flow direction of the airflow to reduce the flow loss along the way. However, due to the influence of thermal stress for a long time, the exhaust diffuser of the gas turbine has many deep cracks. The effect of multiple repair welding is not obvious. There are certain safety hazards when the unit is running. In order to save costs while taking into account the safe operation of the unit, the diffuser is prone to cracks and is reinforced with homemade Ma'an plates without affecting the airflow and expansion. However, when welding the Ma'an plates, the staff cannot evenly distribute the spacing positions, and it is not easy to clamp the Ma'an plates during welding, which brings many inconveniences to the welding operation. Therefore, a gas turbine exhaust diffuser crack welding device is provided to solve the above problems. Utility Model Content

[0003] In order to solve the problems in the above background technology, the technical solution adopted by the utility model to solve the technical problems is: a combustion engine exhaust diffuser crack welding device, which includes: a diffuser body, the diffuser body is welded with a weld along the outer side of the circumference, the diffuser body is welded with a Maan plate on one side of the weld, the diffuser body is provided with a welding fixing structure on one side of the weld, the welding fixing structure includes a first clamping ring, a second clamping ring, and a hinge, and the first clamping ring is connected to the second clamping ring by a hinge.

[0004] As a preferred technical solution of the utility model, both the first clamping ring and the second clamping ring are provided with a limiting opening, and the limiting opening is fitted and connected with a limiting rod inside. There are several limiting openings, and the several limiting openings are distributed on the first clamping ring and the second clamping ring at the same intervals.

[0005] As a preferred technical solution of the utility model, a knob is threadedly connected to one side of the first clamping ring and the second clamping ring facing the limiting opening, and the knob thread extends to the inside of the limiting opening to contact the limiting rod.

[0006] As a preferred technical solution of the utility model, a splicing seat is provided on the side of the first clamping ring and the second clamping ring opposite to the hinge, and a bolt runs through the interior of the splicing seat.

[0007] As an optimal technical solution of the utility model, the limit rod and the limit opening are both rectangular in shape, the limit rod is provided with a slot at one end of the weld opening, the inner wall of the slot is fitted with a Maan plate, and the Maan plate is provided with a groove at one side of the weld opening.

[0008] As a preferred technical solution of the utility model, the first clamping ring and the second clamping ring are both threadedly connected with a supporting rod, and the number of the supporting rods is four. The supporting rods thread through the first clamping ring and the second clamping ring to contact the outside of the diffuser body, and an inner cavity is provided inside the diffuser body.

[0009] The utility model has the following advantages: the hinges in the first clamping ring and the second clamping ring facilitate the welding and fixing of the structure sleeve on the diffuser body, and the uniformly spaced limiting openings facilitate the staff to insert the limiting rod into the limiting openings to limit and fix the Ma'an plates to be welded for welding operations, thereby ensuring that the intervals of the Ma'an plates after welding are the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0011] Figure 2 It is a cross-sectional structural diagram of a diffuser body of a preferred embodiment of the utility model;

[0012] Figure 3 This is a schematic diagram of the welding fixing structure of the preferred embodiment of the utility model;

[0013] Figure 4 It is a schematic diagram of the structure of a Maan plate according to a preferred embodiment of the utility model.

[0014] Explanation of the reference numerals in the accompanying drawings: 1. diffuser body; 101. inner cavity; 2. weld; 3. welding fixing structure; 301. first clamping ring; 302. second clamping ring; 303. hinge; 4. limit opening; 5. knob; 6. limit rod; 601. slot; 7. splicing seat; 8. bolt; 9. supporting rod; 10. Maan plate; 1001. groove. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] The utility model will be further described below in conjunction with the accompanying drawings.

[0018] Please refer to Figure 1-Figure 4 The utility model discloses a crack welding device for a combustion engine exhaust diffuser, comprising: a diffuser body 1, a weld 2 welded along the outer side of the circumference of the diffuser body 1, a Maan plate 10 welded on one side of the weld 2 of the diffuser body 1, a welding fixing structure 3 is arranged on one side of the weld 2 of the diffuser body 1, the welding fixing structure 3 comprises a first clamping ring 301, a second clamping ring 302, and a hinge 303, and the first clamping ring 301 is connected to the second clamping ring 302 through the hinge 303.

[0019] Combination Figure 3 As shown, the first clamping ring 301 and the second clamping ring 302 are both provided with a limiting opening 4, and the limiting opening 4 is fitted and connected with a limiting rod 6, so that the Maan plate 10 to be processed can be supported by the limiting rod 6. There are several limiting openings 4, and several limiting openings 4 are distributed on the first clamping ring 301 and the second clamping ring 302 at the same intervals. The first clamping ring 301 and the second clamping ring 302 are threadedly connected with a knob 5 on the side facing the limiting opening 4, and the knob 5 is threadedly extended to the inside of the limiting opening 4 to contact the limiting rod 6, so that the limiting rod 6 can be supported and fixed in the limiting opening 4 by the knob 5, and a splicing seat 7 is provided on the side of the first clamping ring 301 and the second clamping ring 302 opposite to the hinge 303, and a bolt 8 is passed through the splicing seat 7.

[0020] Combination Figure 2 As shown, the limiting rod 6 and the limiting opening 4 are both rectangular in shape to prevent the limiting rod 6 from moving. A slot 601 is provided at one end of the limiting rod 6 at the welding opening 2. The inner wall of the slot 601 fits and engages with the Maan plate 10. The Maan plate 10 is provided with a groove 1001 at one side of the welding opening 2. The first clamping ring 301 and the second clamping ring 302 are both threadedly connected with a supporting rod 9. Four supporting rods 9 are provided. The supporting rod 9 threads through the first clamping ring 301 and the second clamping ring 302 to contact the outside of the diffuser body 1. An inner cavity 101 is provided inside the diffuser body 1.

[0021] Specifically, when the utility model is used, the first clamping ring 301 and the second clamping ring 302 on the welding fixing structure 3 are first unfolded and sleeved on the diffuser body 1 through the hinge 303, and the first clamping ring 301 and the second clamping ring 302 are closed and fixed at the clamping joint by the bolt 8 and the splicing seat 7, and then the welding fixing structure 3 is moved to the welding joint 2, and the supporting rod 9 is threadedly rotated toward the side of the diffuser body 1, and then the welding fixing structure 3 is supported and fixed on the outside of the diffuser body 1 through the supporting rod 9, and then one end of the groove 1001 on the Maan plate 10 can be attached to the diffuser body 1 at the welding joint 2, and the limiting rod 6 is inserted through the corresponding limiting opening 4, and the limiting rod 6 is pushed to make the clamping groove 601 on the limiting rod 6 clamp the Maan plate 10, and then the knob 5 is tightened to fix the limiting rod 6, so as to facilitate personnel to weld the Maan plate 10 to the diffuser body 1 at the welding joint 2.

[0022] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

[0023] Other parts of the present invention not described in detail belong to the prior art and will not be described here.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A crack welding device for a combustion engine exhaust diffuser, comprising: A diffuser body (1), characterized in that a weld (2) is welded along the outer side of the circumference of the diffuser body (1), a Maan plate (10) is welded to the diffuser body (1) on one side of the weld (2), and a welding fixing structure (3) is provided on the diffuser body (1) on one side of the weld (2), the welding fixing structure (3) comprises a first clamping ring (301), a second clamping ring (302), and a hinge (303), and the first clamping ring (301) and the second clamping ring (302) are connected via the hinge (303).

2. A combustion engine exhaust diffuser crack welding device as claimed in claim 1, characterized in that: The first clamping ring (301) and the second clamping ring (302) are both provided with a limiting opening (4), and a limiting rod (6) is fitted and connected inside the limiting opening (4). There are a plurality of limiting openings (4), and the plurality of limiting openings (4) are distributed on the first clamping ring (301) and the second clamping ring (302) at the same intervals.

3. A combustion engine exhaust diffuser crack welding device as claimed in claim 1, characterized in that: A knob (5) is threadedly connected to one side of the first clamping ring (301) and the second clamping ring (302) facing the limiting opening (4), and the knob (5) is threadedly extended to the inside of the limiting opening (4) to contact the limiting rod (6).

4. A combustion engine exhaust diffuser crack welding device as claimed in claim 1, characterized in that: A splicing seat (7) is provided on the side of the first clamping ring (301) and the second clamping ring (302) opposite to the hinge (303), and a bolt (8) passes through the interior of the splicing seat (7).

5. A combustion engine exhaust diffuser crack welding device as claimed in claim 2, characterized in that: The limiting rod (6) and the limiting opening (4) are both rectangular in shape; the limiting rod (6) is provided with a slot (601) at one end of the welding opening (2); the inner wall of the slot (601) is fitted with a Maan plate (10); and the Maan plate (10) is provided with a groove (1001) at one side of the welding opening (2).

6. A combustion engine exhaust diffuser crack welding device as claimed in claim 1, characterized in that: The first clamping ring (301) and the second clamping ring (302) are both threadedly connected with a supporting rod (9), and the supporting rods (9) are provided in four numbers. The supporting rods (9) threadedly pass through the first clamping ring (301) and the second clamping ring (302) to contact the outside of the diffuser body (1), and an inner cavity (101) is provided inside the diffuser body (1).

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