CN219776475U - Flexible welding sealing ring for heat exchanger - Google Patents
Flexible welding sealing ring for heat exchanger Download PDFInfo
- Publication number
- CN219776475U CN219776475U CN202320945878.7U CN202320945878U CN219776475U CN 219776475 U CN219776475 U CN 219776475U CN 202320945878 U CN202320945878 U CN 202320945878U CN 219776475 U CN219776475 U CN 219776475U
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- Prior art keywords
- ring
- ring pad
- pad
- welding
- sealing
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- 238000003466 welding Methods 0.000 title claims abstract description 77
- 238000007789 sealing Methods 0.000 title claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model relates to the technical field of metal sealing rings, and particularly discloses a flexible welding sealing ring for a heat exchanger, which comprises a first ring pad and a second ring pad, wherein the first ring pad and the second ring pad are metal sealing rings with L-shaped sections, the bore diameters of the first ring pad and the second ring pad are the same, an inner slope type welding surface I is arranged at the inner end of the first ring pad, and an inner slope type welding surface II is arranged at the inner end of the second ring pad. According to the utility model, the hemispherical holes and the spherical protrusions are arranged, so that the first ring gasket and the second ring gasket can be aligned during welding, sliding is avoided, the two ring gaskets are different in side pressure of a floating head flange and a floating tube plate which are in sealing connection during sealing, welding can be carried out from the inner side and the outer side through arranging the inner slope type welding surface and the outer slope type welding surface, the sealing effect of welding is improved, one welding mode is used before the sealing ring is installed, the other welding mode is used after the sealing ring is installed, the sealing performance is improved, and the time of welding sealing is prolonged.
Description
Technical Field
The utility model belongs to the technical field of dust removal of power distribution cabinets, and particularly relates to a flexible welding sealing ring for a heat exchanger.
Background
The sealing ring is an annular sealing piece, and is abutted against the inner hole wall of the static piece by virtue of elasticity of the pressed sealing piece, so that the sealing ring has a sealing effect, is widely applied, and has a sealing effect when being welded between a floating tube plate and a floating head flange, between a fixed tube plate and a tube box flange and between the fixed tube plate and a shell flange in an inner floating head shell-and-tube heat exchanger.
The Chinese patent with publication number of CN201503236U proposes a flexible welding sealing ring for a heat exchanger, which ensures the sealing effect by welding under the condition of larger volume of the heat exchanger without increasing the structural size of the equipment.
However, this kind of welding sealing ring lacks limit structure between two ring pads, appears the deviation easily when carrying out the welding to left ring pad and right ring pad, and the circumstances that two ring pads have the deviation to sealing connection's floating head flange and floating tube sheet's side pressure when probably appearing installing to produce the gap easily, influence flexible welding sealing ring's result of use, simultaneously, this kind of flexible welding sealing ring can only weld from the inner, and the gap between the outer ends of two ring pads still can have liquid infiltration to lead to the fact the corruption to the sealing ring, influences sealing ring's life.
Disclosure of Invention
The present utility model aims to provide a flexible welded seal ring for a heat exchanger, which solves the problems set forth in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the flexible welding sealing ring for the heat exchanger comprises a first ring pad and a second ring pad, wherein the first ring pad and the second ring pad are metal sealing rings with L-shaped sections, the bore diameters of the first ring pad and the bore diameter of the second ring pad are the same, an inner slope type welding surface I is arranged at the inner end of the first ring pad, an inner slope type welding surface II is arranged at the inner end of the second ring pad, the outer diameter of the first ring pad is larger than that of the second ring pad, an outer slope type welding surface is arranged at the outer end of the second ring pad, hemispherical holes distributed in a circumferential array are formed in one end of the first ring pad opposite to the second ring pad, and spherical protrusions matched with the hemispherical holes are fixedly arranged at one end of the second ring pad opposite to the first ring pad.
Further, one end of the first ring pad opposite to the second ring pad is provided with two circular arc grooves I which are concentrically arranged, and one end of the second ring pad opposite to the first ring pad is provided with two circular arc grooves II which are concentrically arranged.
Further, the first arc-shaped groove is opposite to the second arc-shaped groove.
Further, the first inner slope type welding surface and the second inner slope type welding surface are fixed through welding of the first welding layer.
Further, the outer slope type welding surface and the side surface of the first ring pad are fixed through welding of the second welding layer.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the hemispherical holes and the spherical protrusions are arranged, so that the first ring gasket and the second ring gasket can be aligned during welding, sliding is avoided, the pressure of the two ring gaskets on the side surfaces of the floating head flange and the floating tube plate which are in sealing connection during sealing is different, welding can be carried out from the inner side and the outer side through arranging the inner slope type welding surface and the outer slope type welding surface, the sealing effect of welding is improved, one welding mode is used before the sealing ring is installed, the other welding mode is used after the sealing ring is installed, the sealing performance is improved, and the time of welding sealing is prolonged.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a perspective sectional view of a first ring pad and a second ring pad according to the present utility model;
FIG. 3 is a cross-sectional view showing the three-dimensional structures of a first ring pad and a second ring pad of the present utility model;
FIG. 4 is a schematic cross-sectional elevation of the first and second ring pads of the present utility model in contact;
FIG. 5 is a schematic cross-sectional elevation of the present utility model with the first and second inner ends of the ring pad welded;
FIG. 6 is a schematic front cross-sectional view of the present utility model when the first ring pad and the outer end of the ring pad are welded.
In the figure: 1. a first ring pad; 101. an inner slope type welding surface I; 2. a second ring pad; 201. an inner slope type welding surface II; 202. an outer slope type welding surface; 3. a hemispherical hole; 4. a spherical protrusion; 5. arc-shaped groove I; 6. arc-shaped grooves II; 7. welding a first layer; 8. and welding a second layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples:
as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the flexible welding sealing ring for a heat exchanger provided by one embodiment of the utility model comprises a first ring pad 1 and a second ring pad 2, wherein the first ring pad 1 and the second ring pad 2 are metal sealing rings with L-shaped sections, the bore diameters of the inner bores of the first ring pad 1 and the second ring pad 2 are the same, an inner slope type welding surface one 101 is arranged at the inner end of the first ring pad 1, an inner slope type welding surface two 201 is arranged at the inner end of the second ring pad 2, the outer diameter of the first ring pad 1 is larger than the outer diameter of the second ring pad 2, an outer slope type welding surface 202 is arranged at the outer end of the second ring pad 2, hemispherical holes 3 distributed in a circumferential array are formed at the end of the first ring pad 1 opposite to the second ring pad 2, and spherical protrusions 4 matched with the hemispherical holes 3 are fixedly arranged at the end of the second ring pad 2 opposite to the first ring pad 1; in summary, when the welding sealing ring is used, the first ring pad 1 and the second ring pad 2 can be welded and fixed from the inner end position, the inner slope type welding surface 101 and the inner slope type welding surface two 201 are welded and fixed, the welding layer generated during welding can not extend into the inner holes of the first ring pad 1 and the second ring pad 2, gaps between the first ring pad 1 and the second ring pad 2 and floating head flanges and floating tube plates of the heat exchanger are avoided, sealing effect is affected, meanwhile, the outer sides of the first ring pad 1 and the second ring pad 2 can be welded and fixed, the effect of improving welding strength is achieved by welding between the outer slope type welding surface 202 and one side surface of the first ring pad 1, sealing between the first ring pad 1 and the second ring pad 2 is not easy to leak due to the mode of double-side welding, in addition, the hemispherical hole 3 and the spherical protuberance 4 are arranged, the sealing ring can support and prevent sliding in the welding process from occurring during welding, and damage is avoided.
As shown in fig. 2 and 3, in some embodiments, two circular arc grooves 5 are formed at one end of the first ring pad 1 opposite to the second ring pad 2, and two circular arc grooves 6 are formed at one end of the second ring pad 2 opposite to the first ring pad 1; the arc-shaped groove I5 and the arc-shaped groove II 6 are arranged and are used for coping with flexible deformation when the inner end and the outer end are welded and sealed.
As shown in fig. 4, in some embodiments, the first arcuate slot 5 is opposite to the second arcuate slot 6; the circular arc groove one 5 and the circular arc groove two 6 are arranged opposite to each other, and an annular hole with a circular cross section can be formed.
As shown in fig. 5, in some embodiments, the first inner slope welding surface 101 and the second inner slope welding surface 201 are welded and fixed by the first welding layer 7, and the inner end welding seal can be realized by welding at the position of the first welding layer 7, so that the smoothness of the inner hole of the sealing ring is prevented from being affected, and gaps are prevented from being generated at the inner end unevenness.
As shown in fig. 6, in some embodiments, the outer slope welding surface 202 and the side surface of the first ring pad 1 are welded and fixed by the second welding layer 8; through the position welding at weld layer two 8, can realize outer end welded seal, avoid influencing the smoothness of sealing ring outer end.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The flexible welding sealing ring for the heat exchanger comprises a first ring pad (1) and a second ring pad (2), and is characterized in that the first ring pad (1) and the second ring pad (2) are metal sealing rings with L-shaped sections, the bore diameters of the first ring pad (1) and the bore diameters of the second ring pad (2) are identical, an inner slope type welding surface I (101) is arranged at the inner end of the first ring pad (1), an inner slope type welding surface II (201) is arranged at the inner end of the second ring pad (2), the outer diameter of the first ring pad (1) is larger than the outer diameter of the second ring pad (2), an outer slope type welding surface (202) is arranged at the outer end of the second ring pad (2), hemispherical holes (3) distributed in a circumferential array are formed at the opposite end of the first ring pad (1) and the second ring pad (2), and spherical protrusions (4) matched with the hemispherical holes (3) are fixedly arranged at the opposite end of the first ring pad (2).
2. The flexible welded seal ring for a heat exchanger according to claim 1, wherein: two circular arc grooves I (5) which are concentrically arranged are formed in one end, opposite to the circular pad II (2), of the circular pad I (1), and two circular arc grooves II (6) which are concentrically arranged are formed in one end, opposite to the circular pad II (2), of the circular pad I (1).
3. The flexible welded seal ring for a heat exchanger according to claim 2, wherein: the first arc-shaped groove (5) is opposite to the second arc-shaped groove (6).
4. The flexible welded seal ring for a heat exchanger according to claim 1, wherein: the inner slope type welding surface I (101) and the inner slope type welding surface II (201) are welded and fixed through a welding layer I (7).
5. The flexible welded seal ring for a heat exchanger according to claim 1, wherein: the outer slope type welding surface (202) and the side surface of the first ring pad (1) are welded and fixed through a second welding layer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320945878.7U CN219776475U (en) | 2023-04-24 | 2023-04-24 | Flexible welding sealing ring for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320945878.7U CN219776475U (en) | 2023-04-24 | 2023-04-24 | Flexible welding sealing ring for heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219776475U true CN219776475U (en) | 2023-09-29 |
Family
ID=88104665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320945878.7U Active CN219776475U (en) | 2023-04-24 | 2023-04-24 | Flexible welding sealing ring for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219776475U (en) |
-
2023
- 2023-04-24 CN CN202320945878.7U patent/CN219776475U/en active Active
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