CN209910490U - Corrosion-resistant expansion joint structure - Google Patents
Corrosion-resistant expansion joint structure Download PDFInfo
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- CN209910490U CN209910490U CN201920653853.3U CN201920653853U CN209910490U CN 209910490 U CN209910490 U CN 209910490U CN 201920653853 U CN201920653853 U CN 201920653853U CN 209910490 U CN209910490 U CN 209910490U
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- expansion joint
- faying face
- neck bush
- corrosion
- filler
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Abstract
The utility model belongs to the technical field of chemical industry equipment, a corrosion-resistant expansion joint structure is related to, including the expansion joint, expansion joint axial both sides terminal surface symmetrical welding equipment barrel, the first neck bush of expansion joint inner wall axial one end fixation, the second neck bush of expansion joint inner wall axial other end fixation, set up first faying face on the first neck bush, set up the second faying face on the second neck bush, first faying face and second faying face mutually support, set up the packing box between first faying face and the second faying face, the packing material is filled in the packing box. The utility model has the advantages of compact and reasonable structure, convenient operation through the effect of packing between two inside linings, makes working medium and inflation keep apart, and the medium that the expansion joint receives corrodes and can ignore basically, and the expansion joint can use longer time, accomplishes basically with the barrel with the life-span, has improved operational reliability greatly.
Description
Technical Field
The utility model belongs to the technical field of chemical industry equipment, a corrosion-resistant expansion joint structure is related to.
Background
The expansion joint is used in a large amount in chemical production, and the important reason influencing the service life of the expansion joint is the corrosion problem. From years of empirical analysis, heat exchangers with expansion joints are mostly due to expansion joint failure, resulting in leakage of the working material. In the event of expansion joint failure, the failure is the majority due to corrosion of the expansion joint by the medium. The expansion joint fails to cause the failure of the heat exchanger, equipment has to be replaced, and the production cost of a user enterprise is increased.
Disclosure of Invention
The utility model aims at the above problem, a corrosion-resistant expansion joint structure is provided, and this expansion joint structure's compact structure is reasonable, and in use can accomplish with the barrel with the life-span, has improved operational reliability greatly.
According to the technical scheme of the utility model: a corrosion-resistant expansion joint structure which is characterized in that: including the expansion joint, the expansion joint axial both sides terminal surface symmetry welding equipment barrel, the fixed first neck bush of expansion joint inner wall axial one end, the fixed second neck bush of expansion joint inner wall axial other end, set up first faying surface on the first neck bush, set up the second faying surface on the second neck bush, first faying surface and second faying surface are mutually supported, set up the packing box between first faying surface and the second faying surface, pack the filler in the packing box.
As a further improvement, the bottom surface of the first lapping surface is matched with the upper surface of the second lapping surface, and the filler is arranged in the filler tank formed by the bottom surface groove of the first lapping surface and the upper surface groove of the second lapping surface
As a further improvement of the utility model, the inner inclined plane of the first faying surface is parallel to the inner inclined plane of the second faying surface.
As a further improvement of the utility model, the expansion joint comprises a U-shaped structure and an inverted U-shaped structure which are connected in sequence.
As a further improvement, the equipment barrel is of a cylinder structure.
The technical effects of the utility model reside in that: the utility model has the advantages of compact and reasonable structure, convenient operation through the effect of packing between two inside linings, makes working medium and inflation keep apart, and the medium that the expansion joint receives corrodes and can ignore basically, and the expansion joint can use longer time, accomplishes basically with the barrel with the life-span, has improved operational reliability greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
In fig. 1, a first inner liner 1, a first overlapping surface 1-1, a filler 2, a second inner liner 3, a second overlapping surface 3-1, an expansion joint 4, an equipment cylinder 5, and the like are included.
As shown in figure 1, the utility model relates to a corrosion-resistant expansion joint structure, including expansion joint (4), 4 axial both sides of expansion joint terminal surface symmetry welding equipment barrels 5, 4 inner wall axial one end fixed first neck bushes 1 of expansion joint, 4 inner wall axial other ends fixed second neck bushes 3 of expansion joint, set up first faying face 1-1 on the first neck bush 1, set up second faying face 3-1 on the second neck bush 3, first faying face 1-1 and second faying face 3-1 are mutually supported, set up the packing box between first faying face 1-1 and the second faying face 3-1, packing 2 in the packing box.
In particular practice, in order to ensure reliable fixation of the first and second inner liners 1 and 3, the first and second inner liners 1 and 3 and the expansion joint 4 are usually fixed by welding.
The bottom surface of the first lapping surface 1-1 is matched with the upper surface of the second lapping surface 3-1, and the filler 2 is arranged in a filler groove formed by the bottom surface groove of the first lapping surface 1-1 and the upper surface groove of the second lapping surface 3-1.
The inner end inclined plane of the first overlapping surface 1-1 is parallel to the inner end inclined plane of the second overlapping surface 3-1. The structures of the first inner bushing 1 and the second inner bushing 3 can ensure that the surfaces of the first inner bushing and the second inner bushing which are mutually overlapped and matched realize reliable and stable sealing matching, the filler 2 is usually of a non-corrosive chemical substance structure, and the filler 2 can effectively isolate a working medium from the expansion joint 4.
The expansion joint 4 comprises a U-shaped structure and an inverted U-shaped structure which are connected in sequence, and the expansion joint 4 can bear large force.
The equipment cylinder 5 is of a cylindrical structure.
The utility model discloses under same corrosion rate, expansion joint 4 can use longer time, accomplish basically and the same life-span of equipment barrel 5.
Claims (5)
1. A corrosion-resistant expansion joint structure which is characterized in that: the expansion joint comprises an expansion joint (4), the expansion joint (4) is axially symmetrically welded on two side end faces of a welding equipment barrel body (5), a first inner bushing (1) is fixed at one axial end of the inner wall of the expansion joint (4), a second inner bushing (3) is fixed at the other axial end of the inner wall of the expansion joint (4), a first overlap joint face (1-1) is arranged on the first inner bushing (1), a second overlap joint face (3-1) is arranged on the second inner bushing (3), the first overlap joint face (1-1) and the second overlap joint face (3-1) are matched with each other, a filler box is arranged between the first overlap joint face (1-1) and the second overlap joint face (3-1), and filler (2) is filled in the filler box.
2. The corrosion resistant expansion joint structure of claim 1, wherein: the bottom surface of the first overlapping surface (1-1) is matched with the upper surface of the second overlapping surface (3-1), and the filler (2) is arranged in a filler groove formed by the bottom surface groove of the first overlapping surface (1-1) and the upper surface groove of the second overlapping surface (3-1).
3. The corrosion resistant expansion joint structure of claim 1, wherein: the inner end inclined plane of the first overlapping surface (1-1) is parallel to the inner end inclined plane of the second overlapping surface (3-1).
4. The corrosion resistant expansion joint structure of claim 1, wherein: the expansion joint (4) comprises a U-shaped structure and an inverted U-shaped structure which are sequentially connected.
5. The corrosion resistant expansion joint structure of claim 1, wherein: the equipment barrel (5) is of a cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920653853.3U CN209910490U (en) | 2019-05-08 | 2019-05-08 | Corrosion-resistant expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920653853.3U CN209910490U (en) | 2019-05-08 | 2019-05-08 | Corrosion-resistant expansion joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209910490U true CN209910490U (en) | 2020-01-07 |
Family
ID=69047337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920653853.3U Active CN209910490U (en) | 2019-05-08 | 2019-05-08 | Corrosion-resistant expansion joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209910490U (en) |
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2019
- 2019-05-08 CN CN201920653853.3U patent/CN209910490U/en active Active
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