CN221880504U - Carbon Tao Nachen fused salt pipeline - Google Patents
Carbon Tao Nachen fused salt pipeline Download PDFInfo
- Publication number
- CN221880504U CN221880504U CN202420451506.3U CN202420451506U CN221880504U CN 221880504 U CN221880504 U CN 221880504U CN 202420451506 U CN202420451506 U CN 202420451506U CN 221880504 U CN221880504 U CN 221880504U
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- carbon
- pipe
- nachen
- tao
- molten salt
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 35
- 150000003839 salts Chemical class 0.000 title claims abstract description 34
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 19
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The application belongs to the technical field of pipelines, and particularly relates to a carbon Tao Nachen molten salt pipeline which comprises an outer pipe, an inner pipe sleeved in the outer pipe and a bonding layer positioned between the outer pipe and the inner pipe, wherein the inner pipe is made of carbon ceramic materials. The inner pipe provided by the application is used as a carbon ceramic layer of a carbon Tao Nachen molten salt pipeline, has the characteristics of high strength, high modulus, high hardness, impact resistance, oxidation resistance, high temperature resistance, acid and alkali resistance, corrosion resistance of all chemical substances and the like of high-performance ceramic, and has the working temperature of 2000 ℃, high structural strength and no cracking of the inner pipe during welding of the outer pipe.
Description
Technical Field
The utility model belongs to the technical field of molten salt pipelines, and particularly relates to a carbon Tao Nachen molten salt pipeline.
Background
In the fields of chemical industry, metallurgy, energy sources and the like, molten salt is taken as an important industrial medium and is widely applied to the production process. However, molten salts are highly corrosive and require high demands on the pipeline materials. Traditional metal materials such as stainless steel, nickel-based alloy and the like are easy to corrode, oxidize and wear in a high-temperature molten salt environment, so that the service life of a pipeline is reduced, and even leakage accidents occur.
In the prior art, a double-layer pipeline is usually adopted, the inner-layer pipeline is made of ceramic materials, the ceramic layer resists the corrosiveness of molten salt, but is fragile, has poor high-temperature stability, is only suitable for use scenes with low temperature requirements, cannot bear the high temperature of more than 2000 ℃, and is easy to fall off when the working temperature of the formed molten salt pipeline exceeds more than 2000 ℃, the ceramic inner layer is expanded, and the inner layer and the outer layer are cooled and contracted after the temperature is reduced; when two pipelines are welded, the welded high temperature is transferred to the inner layer through the outer layer steel, and the ceramic inner layer cannot bear the high temperature and cracks, so that the manufacturing rejection rate is high and the manufacturing cost is high.
Therefore, a fused salt pipeline with high temperature resistance and high stability of an inner layer structure and an outer layer structure is needed to solve the existing problems.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a carbon Tao Nachen molten salt pipeline, wherein a bonding layer is arranged between an inner pipe and an outer pipe, and the inner pipe is used as a carbon ceramic layer of the carbon Tao Nachen molten salt pipeline and has the characteristics of high strength, high modulus, high hardness, impact resistance, oxidation resistance, high temperature resistance, acid and alkali resistance and corrosion resistance, so that the inner pipe cannot fall off from the outer pipe after being contracted by high Wen Zhanglie.
In order to achieve the aim, the utility model provides a carbon Tao Nachen molten salt pipeline which comprises an outer pipe, an inner pipe sleeved in the outer pipe and a bonding layer positioned between the outer pipe and the inner pipe, wherein the inner pipe is made of carbon ceramic materials; the outer wall of the inner tube is provided with a bulge, the inner wall of the outer tube is provided with a corresponding L-shaped groove, the L-shaped groove is provided with a first end and a second end, and the bulge of the inner tube extends into the outer tube along the first end of the L-shaped groove and rotates to the second end of the L-shaped groove to be fixed.
Further, the first end of the L-shaped groove penetrates through one side end face of the outer tube, and the second end of the L-shaped groove extends to a certain distance along the circumferential direction of the outer tube.
Further, the first end of the L-shaped groove is filled with an adhesive.
Further, the first end of the L-shaped groove is a rectangular groove, the second end of the L-shaped groove is a trapezoid groove, the outer wall of the inner tube is protruded to be of a trapezoid structure, and two side faces of the trapezoid structure are matched with the trapezoid groove.
Further, the outer wall protrusions and the L-shaped grooves of the inner tube are respectively arranged in a circumferential array around the central axes of the outer tube and the inner tube.
Further, the outer tube is made of carbon steel or stainless steel.
Further, the outer tube comprises a first process hole, the inner tube comprises a second process hole, and the first process hole and the second process hole are multiple and are respectively arranged at two ends of the outer tube and the inner tube.
The beneficial effects of the utility model are as follows:
The inner pipe is sleeved in the outer pipe, a bonding layer is arranged between the inner pipe and the outer pipe, the inner pipe is made of a carbon ceramic material, the inner pipe is used as a carbon ceramic layer of a carbon Tao Nachen molten salt pipeline, the carbon ceramic pipe has the characteristics of high strength, high modulus, high hardness, impact resistance, oxidation resistance, high temperature resistance, acid-base resistance and corrosion resistance of high-performance ceramic, the bending strength can still be kept at 500-600 MPa at 1400 ℃, the working temperature can reach 2000 ℃, the inner pipe cannot fall off from the outer pipe after shrinking with Wen Zhanglie, the outer pipe steel pipe can be welded at will when the pipeline is installed and connected, and the inner pipe cannot be broken; the bulge of the inner tube is tightly clamped with the second end of the L-shaped groove, the first end of the L-shaped groove is sealed through the adhesive, the circumferential direction and the axial direction of the inner tube are limited, the structural stability of the inner tube and the outer tube is further improved, and the outer tube and the inner tube are effectively prevented from loosening;
Secondly, in a preferred implementation mode, the tenon of the utility model enters the tenon groove from the rectangular groove and rotates along the circumferential direction until the tenon is tightly attached to the trapezoid groove, so that fixation is realized, and the inner pipe and the outer pipe can be disassembled and replaced through reverse rotation;
Thirdly, in a preferred implementation mode, the carbon Tao Nachen molten salt pipeline is provided with the process holes for fixing the outer pipe and the process holes for rotating the inner pipe, so that the inner pipe and the outer pipe are convenient to install, and the assembly efficiency is improved.
Drawings
FIG. 1 is a perspective view of a carbon Tao Nachen molten salt conduit of example 1 of the present utility model;
FIG. 2 is a perspective view of a carbon Tao Nachen molten salt conduit of example 3 of the present utility model;
FIG. 3 is a perspective view of the outer tube of the carbon Tao Nachen molten salt conduit of example 3 of the present utility model;
FIG. 4 is an enlarged view of a portion of FIG. 2;
FIG. 5 is a perspective view of the inner tube of the carbon Tao Nachen molten salt conduit of example 3 of the present utility model;
FIG. 6 is a side view of the inner tube of the carbon Tao Nachen molten salt conduit of example 3 of the present utility model;
Fig. 7 is a cross-sectional view of A-A of fig. 5.
Wherein, 1-outer tube; 10-mortises; 100-rectangular slots; 101-a trapezoidal groove; 11-a first process hole; 2-an inner tube; 20-tenon; 21-second process hole.
Detailed Description
In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings and examples.
The terms of directions such as up, down, left, right, front and rear in the present document are established based on the positional relationship shown in the drawings. The drawings are different, and the corresponding positional relationship may be changed, so that the scope of protection cannot be understood.
In the present application, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected or detachably connected, integrally connected or mechanically connected, electrically connected or communicable with each other, directly connected or indirectly connected through an intermediate medium, or communicated between two components, or an interaction relationship between two components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1 of the specification, a carbon Tao Nachen molten salt pipeline comprises an outer pipe 1, an inner pipe 2 sleeved in the outer pipe 1 and a bonding layer positioned between the outer pipe 1 and the inner pipe 2.
The inner tube 2 is made of carbon ceramic material, and is formed by pressing through a die and then heat treatment at high temperature. The outer tube 1 can be carbon steel or stainless steel pipes according to the temperature of molten salt media.
By adopting the structure of the embodiment, the outer tube 1 and the inner tube 2 are bonded together through the bonding layer, so that the structural stability of the outer tube 1 and the inner tube 2 after being installed is improved; the inner pipe 2 is used as a carbon ceramic layer of a carbon Tao Nachen molten salt pipeline, has the characteristics of high strength, high modulus, high hardness, impact resistance, oxidation resistance, high temperature resistance, acid and alkali resistance and corrosion resistance, and the bending strength can still be kept at 500-600 MPa at 1400 ℃, and the working temperature reaches 2000 ℃, so that the inner pipe and the outer pipe cannot be loosened due to crack and shrink in a high-temperature environment of the molten salt pipeline, and when the pipeline is installed and connected, the steel pipe of the outer pipe 1 can be welded at will, and the inner pipe 2 cannot be broken.
Example 2
On the basis of the embodiment 1, referring to fig. 2-6 of the specification, the outer wall of the inner tube 2 is provided with a bulge, the inner wall of the outer tube 1 is provided with a corresponding L-shaped groove, the first end of the L-shaped groove penetrates through one side end face of the outer tube 1, and the second end of the L-shaped groove extends to a certain distance along the circumferential direction of the outer tube 1. The inner tube 2 extends into the outer tube 1 along the first end of the L-shaped groove and is rotated to the second end, the first end of the L-shaped groove is filled with an adhesive, and the inner tube 2 is fixed in the outer tube 1.
By adopting the structure of the embodiment, the carbon Tao Nachen molten salt pipeline after installation is clamped with the second end of the L-shaped groove by the bulge of the inner pipe 2, the first end of the L-shaped groove is sealed by the adhesive, the circumferential direction and the axial direction of the inner pipe 2 are limited, and the outer pipe 1 and the inner pipe 2 are effectively prevented from loosening.
Example 3
On the basis of example 2, referring to fig. 7 of the specification, the outer tube 1 includes a tongue-and-groove 10, and the inner tube 2 includes a tongue 20. The mortise 10 is an L-shaped slot, and a first end of the L-shaped slot is a rectangular slot 100 shown in fig. 3; the second end of the L-shaped slot is a trapezoidal slot 101 as shown in fig. 3.
The tenon 20 has a trapezoidal structure. The two side surfaces of the tenon 20 in the circumferential direction of the inner tube 2 are parallel to each other and match the first surface 10a and the second surface 10b of the mortise 10. The two sides 20a and 20b of the tenon 20 along the axial direction of the inner tube 2 form an included angle, the included angle is opened towards the outer side of the inner tube 2, and the third face 10c and the fourth face 10d of the tenon groove 10 are matched with the 20a and the 20b respectively.
By adopting the structure of the embodiment, the tenon 20 enters the tenon groove 10 from the rectangular groove 100 and rotates along the circumferential direction until the tenon 20 is tightly attached to the trapezoid groove 101, so that fixation is realized, and the inner pipe 2 and the outer pipe can be disassembled and replaced through reverse rotation.
Example 4
On the basis of embodiment 3, the outer tube 1 comprises a first process hole 11 and the inner tube 2 comprises a second process hole 21. The first process hole 11 and the second process hole 21 are provided with a plurality of first process holes and are respectively arranged at two ends of the outer tube 1 and the inner tube 2, the outer tube 1 is fixed by clamping the first process hole 11 through a positioning tool, and the inner tube 2 is axially rotated to the second end of the L-shaped groove inside the outer tube 1 by clamping the second process hole 21 through a rotating tool.
By adopting the structure of the embodiment, the inner pipe 2 and the outer pipe 1 are convenient to install, and the assembly efficiency is improved.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The carbon Tao Nachen molten salt pipeline is characterized by comprising an outer pipe (1), an inner pipe (2) sleeved in the outer pipe (1) and a bonding layer positioned between the outer pipe (1) and the inner pipe (2), wherein the inner pipe (2) is made of a carbon ceramic material; the outer wall of inner tube (2) is equipped with the arch, the L-shaped groove that corresponds has been seted up to the inner wall of outer tube (1), the L-shaped groove has first end and second end, the arch of inner tube (2) is followed the first end in L-shaped groove stretches into in outer tube (1), and rotate to the second end in L-shaped groove is fixed.
2. The carbon Tao Nachen molten salt pipeline as claimed in claim 1, wherein a first end of the L-shaped groove penetrates through one side end face of the outer pipe (1), and a second end of the L-shaped groove extends to a certain distance along the circumferential direction of the outer pipe (1).
3. The carbon Tao Nachen molten salt conduit of claim 2 wherein the first end of the L-shaped slot is filled with a binder.
4. The carbon Tao Nachen molten salt pipeline as claimed in claim 2, wherein the first end of the L-shaped groove is a rectangular groove, the second end is a trapezoid groove, the outer wall of the inner pipe (2) is convex to be a trapezoid structure, and two sides of the trapezoid structure are matched with the trapezoid groove.
5. The carbon Tao Nachen molten salt pipeline as claimed in claim 2, wherein the outer wall protrusion and the L-shaped groove of the inner pipe (2) are provided in a circumferential array around the central axes of the outer pipe (1) and the inner pipe (2), respectively.
6. The carbon Tao Nachen molten salt pipeline according to claim 1, characterized in that the outer pipe (1) is a carbon steel or stainless steel pipeline.
7. The carbon Tao Nachen molten salt pipeline according to claim 2, wherein the outer pipe (1) comprises a first process hole, the inner pipe (2) comprises a second process hole, and the first process hole and the second process hole are multiple and are respectively arranged at two ends of the outer pipe (1) and the inner pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420451506.3U CN221880504U (en) | 2024-03-08 | 2024-03-08 | Carbon Tao Nachen fused salt pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420451506.3U CN221880504U (en) | 2024-03-08 | 2024-03-08 | Carbon Tao Nachen fused salt pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221880504U true CN221880504U (en) | 2024-10-22 |
Family
ID=93101319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420451506.3U Active CN221880504U (en) | 2024-03-08 | 2024-03-08 | Carbon Tao Nachen fused salt pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221880504U (en) |
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2024
- 2024-03-08 CN CN202420451506.3U patent/CN221880504U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant |