CN215469090U - Heating cavity welding assembly - Google Patents
Heating cavity welding assembly Download PDFInfo
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- CN215469090U CN215469090U CN202122033999.8U CN202122033999U CN215469090U CN 215469090 U CN215469090 U CN 215469090U CN 202122033999 U CN202122033999 U CN 202122033999U CN 215469090 U CN215469090 U CN 215469090U
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Abstract
The utility model relates to a heating cavity welding assembly which comprises an enclosing frame, wherein the enclosing frame structurally comprises a frame body, the frame body structurally comprises side plates and edge plates connected with the side plates, flanges are arranged on the outer edges of the edge plates, welding parts are arranged on the outer edges of the flanges, and the welding parts are used for welding the two enclosing frames to form a heating cavity with an opening at one end; one end of the welding part extends to exceed the end part of the frame body to form an arc starting section, and the arc starting section is removed after the welding is finished. The two surrounding frames are welded into a whole by the welding part, compared with the prior art that the surrounding frame is directly welded on the edge, the deformation of the welded product body is small, meanwhile, the direct contact between the welding seam area and the liquid in the heating cavity is avoided, and the probability of corrosion and water leakage is reduced.
Description
Technical Field
The utility model relates to the technical field of heating cavities of water heaters, in particular to a welding assembly for a heating cavity.
Background
In the prior art, the two enclosing frames are processed into the heating cavity by adopting fiber welding, and then the heating cavity is connected into a whole by using the double-layer composite flange bottom plate. Has the following disadvantages:
the heating cavity is deformed after welding due to the fact that the edges of the two surrounding frames are directly welded, welding seams of the edges of the surrounding frames are affected by high welding temperature, C elements in the stainless steel are combined with Cr at grain boundaries to form Cr23C6 and are separated out, the Cr content at the grain boundaries is reduced, areas with local chromium content lower than the average content are formed, and chromium-poor areas are formed. The poor chromium area often corrodes preferentially, causes the welding seam to rust, rust to wear and leak water. In addition, because enclose frame edge and body and be the right angle, butt weld needs add the silk welding, uses laser welding to add the silk, and is high to welding equipment requirement, is unfavorable for automatic weld, and the operation is inconvenient.
And a crack also exists between the double-layer composite flanges, so that liquid can be stored when the product is passivated, the liquid is not easy to remove, the subsequent use process is easy to rust, and the quality of the welded product is influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a heating cavity welding assembly to solve the technical problem of water leakage of a heating cavity caused by deformation of the heating cavity and easy corrosion of welding seams of a surrounding frame.
The technical scheme adopted by the utility model is as follows:
a heating cavity welding assembly comprises an enclosing frame, wherein the enclosing frame structurally comprises a frame body, the frame body structurally comprises side plates and edge plates connected with the side plates, flanges are arranged on the outer edges of the edge plates, welding parts are arranged on the outer edges of the flanges, and the welding parts are used for welding the two enclosing frames to form a heating cavity with an opening at one end; one end of the welding part extends to exceed the end part of the frame body to form an arc starting section, and the arc starting section is removed after the welding is finished.
The further technical scheme is as follows:
the flanging is an inwards concave arc-shaped surface and is integrally formed with the edge plate, and the welding part is parallel to the side plate.
The edge plate and the side plate are smoothly connected through a convex fillet structure and are integrally formed.
The side plates are provided with reinforcing ribs which are distributed on the whole surfaces of the side plates.
And a convex structure is formed on the outer wall of the side plate and is continuously bent, so that the reinforcing rib is formed.
The flange plate is used for being welded with the open end of the at least one heating cavity; the flange plate is a single layer and is made of the same material as the enclosure frame.
The flange plate is provided with a through hole matched with the structure of the opening end of the heating cavity, and the edges of two sides of the through hole are provided with abdicating notches matched with the welding parts.
The surrounding frame and the flange plate are both made of stainless iron plates with the thickness more than or equal to 3 mm.
The utility model has the following beneficial effects:
the welding part is used for welding the two surrounding frames into a whole, compared with the prior art that the surrounding frame is directly welded on the edge, the deformation of a welded product body is small, meanwhile, the direct contact between a welding seam area and liquid in a heating cavity is avoided, the probability of corrosion and water leakage is reduced, and the structural performance after welding is enhanced.
The arc striking section of the utility model starts welding, bears the influence of unstable welding quality caused by unstable current and other factors in the initial welding stage, and is removed after welding is finished, thereby reducing the influence of welding on the structure of the product.
On one hand, the flanging of the utility model provides a connecting fulcrum for the welding part, so that the welding part is parallel to the side plate, and the welding parts of the two frame bodies are convenient to be jointed; on the other hand, the flanging can reduce the influence of the excessive deformation of the area near the welding seam caused by the excessive current during welding on the structure of the heating cavity body.
The edge plate and the side plate are smoothly connected through the convex fillet structure and are integrally formed. Compared with the structure that the edge plate and the side plate are directly connected at a right angle in the prior art, the deformation redundancy is further increased.
Compared with the linear reinforcing rib structure which is independently arranged at intervals in the prior art, the reinforcing rib structure has the advantages that the distribution area on the side plate is larger, the integral strength is higher, the deformation caused by welding and the deformation of the heating cavity in use are better counteracted, and the power change of the heating cavity caused by the deformation is prevented.
The flange plate is a single layer, so that the generation of a crack between double-layer composite plates can be avoided, the convenience is provided for the later passivation treatment, the reliability of the product is also provided, and meanwhile, the welding operation is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a surrounding frame according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of a heating cavity formed after two enclosing frames are welded according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of the structure-removing arc segment in fig. 3.
Fig. 5 is a schematic structural diagram of a flange plate according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a system after a flange plate and a heating cavity are connected according to an embodiment of the utility model.
In the figure: 1. a frame body; 2. reinforcing ribs; 3. flanging; 4. welding the part; 5. enclosing a frame; 6. a heating cavity; 7. a flange plate; 8. a convex round corner structure; 11. a side plate; 12. an edge plate; 41. an arc striking section; 71. a through hole; 72. and (5) yielding notches.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The heating cavity welding assembly of the embodiment, as shown in fig. 1 and fig. 2, includes a surrounding frame 5, the structure of the surrounding frame 5 includes a frame body 1, the structure of the frame body 1 includes a side plate 11 and an edge plate 12 connected thereto, an edge plate 12 is provided with a flange 3 at an outer edge, a welding portion 4 is provided at an outer edge of the flange 3, the welding portion 4 is used for welding the two surrounding frames 5 to form a heating cavity 6 with one open end as shown in fig. 3, one end of the welding portion 4 extends beyond an end of the frame body 1 to form an arc striking section 41, and the arc striking section 41 is removed after the welding is completed to form the structure as shown in fig. 4.
The heating cavity welding assembly of the embodiment is a semi-finished product in the heating cavity machining process, and a heating cavity product formed after machining can be applied to a water heater, and is particularly suitable for water heaters used on transportation tools such as trains.
In the above-mentioned embodiment, usable welding part 4 is welded two through the fusion welding mode and is become an organic whole, compares with direct 5 edge weld to enclosing frame among the prior art, and the welding back product body warp for a short time, simultaneously, has avoided the welding seam area direct and heating chamber 6 interior liquid contact, reduces to corrode and leak and takes place the probability, reinforcing welding back structural performance.
The welding part 4 can be welded by fusion welding, welding wires are avoided, the automation degree is high, and the operability is strong.
The welding is started from the arc striking section 41, and the welding quality of the initial section is not high due to factors such as unstable current in the initial welding stage, so that the initial section is removed after the welding is finished, and the influence of the welding on the structure of the product is reduced.
In the above embodiment, the flange 3 has an inwardly concave arc shape and is integrally formed with the edge plate 12.
The inward concave arc-shaped surface structure of the flanging 3 provides a connecting support for the welding part 4 on one hand, so that the welding part 4 can extend along the direction parallel to the side plate 11, and the welding parts 4 of the two frame bodies can be conveniently butted; on the other hand, the flanging 3 can reduce the influence of the excessive deformation of the area near the welding seam caused by the excessive current during welding on the body structure of the heating cavity 6.
In a specific embodiment, the edge plate 12 and the side plate 11 are smoothly connected by the convex round corner structure 8 and are integrally formed. Compared with the prior art, the structure that the edge plate 12 is directly connected with the side plate 11 at a right angle further increases the deformation redundancy.
In the above embodiment, the side plate 11 is provided with the reinforcing ribs 2, and the reinforcing ribs 2 are distributed on the whole surface of the side plate 11.
In a specific embodiment, the outer wall of the side plate 11 is formed with a convex structure, and the convex structure is continuously bent to form the reinforcing rib 2.
Referring to fig. 4, the above-mentioned protruding structure is an "X" shaped structure with two closed sides, and compared with the prior art in which the structure is a linear reinforcing rib structure with independent space, the distribution area on the side plate 11 is larger, and because the structure is a closed structure formed by continuous bending and extending, the overall strength is higher, so as to better offset the deformation caused by welding and the deformation of the heating cavity 6 in use, and prevent the power change of the heating cavity 6 caused by deformation.
In the above embodiment, as shown in fig. 5, the heating chamber further comprises a flange plate 7 for welding with the open end of the at least one heating chamber 6; the flange plate 7 is a single layer and is made of the same material as the enclosure frame 5.
The flange plate 7 is provided with a through hole 71 matched with the structure of the opening end of the heating cavity 6, and the two side edges of the through hole 71 are provided with abdicating notches 72 matched with the welding part 4.
As a specific implementation form, the surrounding frame 5 and the flange plate 7 are both made of stainless steel plates with the thickness of more than or equal to 3 mm.
Among the prior art, from the service behavior who adopts double-deck compound flange 1mm board, the rusty main still welding seam near heating chamber 6, the rust-resistant ability of flange board self can satisfy the field operation requirement completely, consequently does not need to carry out double-deck compound, both can reduce resistance weld like this, and foremost can avoid the production of crack between the double-deck composite sheet, provides convenience for later stage passivation, also provides the reliability of product.
The flange plate 7 is used for connecting a plurality of heating cavities 6 at the same time, as shown in fig. 6, and the temperature control and heating elements in the heating cavities 6 are shown in the figure. The yielding notches 72 at the two side edges of the through hole 71 on the flange plate 7 are used for being matched with the structure of the welding part 4, so that the attaching degree of the two is improved.
Claims (8)
1. The heating cavity welding assembly comprises an enclosing frame (5), and is characterized in that the enclosing frame (5) structurally comprises a frame body (1), the frame body (1) structurally comprises side plates (11) and edge plates (12) connected with the side plates, flanges (3) are arranged on the outer edges of the edge plates (12), welding parts (4) are arranged on the outer edges of the flanges (3), and the welding parts (4) are used for welding the two enclosing frames (5) to form a heating cavity (6) with one open end; one end of the welding part (4) extends to exceed the end part of the frame body (1) to form an arc ignition section (41), and the arc ignition section (41) is removed after the welding is finished.
2. Heating cavity welding assembly according to claim 1, wherein the flange (3) is concave arc-shaped and is integrally formed with the edge plate (12), and the welding portion (4) is parallel to the side plate (11).
3. Heating cavity welding assembly according to claim 2, wherein the edge plate (12) is smoothly connected to the side plate (11) by means of a convex rounded structure (8) and is formed integrally therewith.
4. Heating cavity welding assembly according to claim 1, wherein the side plate (11) is provided with reinforcing ribs (2), and the reinforcing ribs (2) are distributed over the entire surface of the side plate (11).
5. Heating cavity welding assembly according to claim 4, wherein the side plate (11) is formed with a raised structure on its outer wall, said raised structure being continuously bent to form said reinforcing bar (2).
6. Heating cavity welding assembly according to claim 1, further comprising a flange plate (7) for welding with an open end of at least one heating cavity (6); the flange plate (7) is a single layer and is made of the same material as the enclosure frame (5).
7. Heating cavity welding assembly according to claim 6, wherein the flange plate (7) is provided with a through hole (71) matching with the structure of the opening end of the heating cavity (6), and the two side edges of the through hole (71) are provided with abdicating notches (72) matching with the welding part (4).
8. Heating cavity welding assembly according to claim 6, wherein the surrounding frame (5) and the flange plate (7) are made of stainless steel plates with a thickness of 3mm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122033999.8U CN215469090U (en) | 2021-08-26 | 2021-08-26 | Heating cavity welding assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122033999.8U CN215469090U (en) | 2021-08-26 | 2021-08-26 | Heating cavity welding assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215469090U true CN215469090U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122033999.8U Active CN215469090U (en) | 2021-08-26 | 2021-08-26 | Heating cavity welding assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215469090U (en) |
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2021
- 2021-08-26 CN CN202122033999.8U patent/CN215469090U/en active Active
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