CN220550939U - Soda carbon steel tower body with stainless steel lining plate and anti-corrosion layer - Google Patents
Soda carbon steel tower body with stainless steel lining plate and anti-corrosion layer Download PDFInfo
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- CN220550939U CN220550939U CN202321998601.7U CN202321998601U CN220550939U CN 220550939 U CN220550939 U CN 220550939U CN 202321998601 U CN202321998601 U CN 202321998601U CN 220550939 U CN220550939 U CN 220550939U
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- China
- Prior art keywords
- stainless steel
- lining plate
- tower body
- steel lining
- wall
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- 239000010935 stainless steel Substances 0.000 title claims abstract description 79
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 79
- 238000005260 corrosion Methods 0.000 title claims abstract description 54
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title claims abstract description 33
- 229910000975 Carbon steel Inorganic materials 0.000 title claims abstract description 29
- 239000010962 carbon steel Substances 0.000 title claims abstract description 29
- 230000007797 corrosion Effects 0.000 claims abstract description 23
- 238000003466 welding Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 9
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 235000017550 sodium carbonate Nutrition 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 13
- 239000002131 composite material Substances 0.000 description 11
- 239000010936 titanium Substances 0.000 description 10
- 229910052719 titanium Inorganic materials 0.000 description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The soda carbon steel tower body provided by the utility model adopts a structure of combining the stainless steel lining plate and the corrosion-resistant layer, wherein the main structural strength part of the tower body is provided by the external carbon steel part, and the stainless steel lining plate and the corrosion-resistant layer are adopted by the part of the tower wall which is in contact with corrosive medium in the tower, so that the service life of equipment can be greatly prolonged, and the carbon steel part does not need to consider corrosion allowance, so that the weight of the equipment can be effectively reduced, and the maintenance and replacement frequency of the equipment can be reduced. In addition, the structure of combining the stainless steel lining plate and the anti-corrosion layer is also applicable to the partially used old tower body.
Description
Technical Field
The utility model belongs to the technical field of soda production equipment, and particularly relates to a soda carbon steel tower body with a stainless steel lining plate and an anti-corrosion layer.
Background
In the production of sodium carbonate, many key devices are made of cast iron, stainless steel, titanium, carbon steel-stainless steel composite board or carbon steel-titanium composite board, carbon steel-anticorrosive paint and other materials, and in each working section of sodium carbonate production, exchange and absorption of liquid medium and gaseous medium are carried out in the interior of the working section. The inside of the reactor has various processes of mass transfer, absorption, chemical reaction, crystallization, heat transfer and the like, and also contains multiphase systems of gas, liquid, solid and the like.
Most of the existing steel tower equipment materials are stainless steel, titanium, carbon steel-stainless steel composite plates or carbon steel-titanium composite plates and carbon steel-anticorrosive paint. The tower made of carbon steel has the advantages that the medium in the equipment corrodes the tower wall quickly, so that enough corrosion allowance needs to be reserved according to the service life of the equipment at the beginning of design, the weight of the equipment is increased, the cost is increased, and the service life of the equipment is shortened.
At present, a tower body made of titanium, carbon steel-stainless steel composite plates or carbon steel-titanium composite plates is often adopted, and the medium in the tower body corrodes the inner wall of the tower body slowly, but the equipment cost is high, and the composite plate manufacturing period is long. The cost of the tower body made of the carbon steel-anticorrosive paint is lower than that of equipment made of stainless steel, titanium, carbon steel-stainless steel composite plates or carbon steel-titanium composite plates, and the corrosion of the medium in the tower body to the inner wall of the tower body is slower, but due to factors such as vibration, cold and hot alternation, air flow and the like generated when the equipment is operated, the corrosion prevention layer is seriously fallen, and finally the corrosion of the equipment still can be caused. In addition, the tower body equipment has larger vibration at the gas-liquid interface during operation, the scouring effect of the air flow on the inner wall of the tower body is obvious, the service life of the inner anti-corrosion layer is extremely short, and if a wire crack appears, the equipment is corroded quickly.
Disclosure of Invention
In order to avoid the defects of high preparation cost, long preparation period and the like of a soda carbon steel tower body caused by falling of an anti-corrosion layer in the inner part of the soda carbon steel tower body due to large vibration and the like of the soda carbon steel tower body, the utility model aims to provide the soda carbon steel tower body with the stainless steel lining plate and the anti-corrosion layer, namely the soda carbon steel tower body with the combination of the stainless steel lining plate and the anti-corrosion layer, and the inner wall of the soda carbon steel tower body is welded with the stainless steel lining plate in a bonding way and is lapped with the anti-corrosion coating, so that the corrosion of the inner medium of the soda carbon steel tower body to the tower wall can be avoided through the synergistic effect of the stainless steel lining plate and the anti-corrosion layer, and the defects of high cost, long period and the like of the lining of the original titanium, carbon steel-stainless steel composite plate or carbon steel-titanium composite plate can be avoided.
The utility model aims at realizing the following technical scheme:
the soda carbon steel tower body comprises a tower body inner wall, a stainless steel lining plate and an anti-corrosion layer; the stainless steel lining plate is provided with a plurality of plug welding holes, the stainless steel lining plate is arranged on the inner wall of the tower body through the plug welding holes, and the edge of the stainless steel lining plate is in adhesive welding connection with the inner wall of the tower body; one side of the anti-corrosion layer is arranged on the inner wall of the tower body, and the other side of the anti-corrosion layer extends and is lapped on the stainless steel lining plate and is lapped to a position 30-100mm away from the edge of the stainless steel lining plate.
According to the embodiment of the utility model, the tower body further comprises a pipe connection opening, and the anti-corrosion layer extends from the inner wall of the pipe connection opening to the inner wall of the tower body and is lapped on the stainless steel lining plate.
According to an embodiment of the utility model, the anti-corrosion layer extends from the inner wall at the connection pipe mouth to the inner wall of the tower body and is lapped on the stainless steel lining plate, and is lapped to a position 30-100mm away from the edge of the stainless steel lining plate.
According to the embodiment of the utility model, the stainless steel lining plate can ensure that the tower body is not corroded when the inner wall of the tower body is contacted with corrosive medium in the tower. The anti-corrosion layer is lapped on the stainless steel lining plate and is lapped to a position 30-100mm away from the edge of the stainless steel lining plate, so that the leakage probability of the stainless steel lining plate can be reduced.
According to the embodiment of the utility model, the tower body further comprises a sealing head, and the anti-corrosion layer extends from the inner wall of the sealing head to the inner wall of the tower body and is lapped on the stainless steel lining plate.
According to the embodiment of the utility model, the anti-corrosion layer extends from the inner wall of the sealing head to the inner wall of the tower body and is lapped on the stainless steel lining plate, and is lapped to a position 30-100mm away from the edge of the stainless steel lining plate.
According to the embodiment of the utility model, the edge of the stainless steel lining plate is in full-welded connection with the inner wall of the tower body.
According to the embodiment of the utility model, the plug welding holes are full-welded plug welding holes, and the stainless steel lining plate can be fixed on the inner wall of the tower body by arranging the full-welded plug welding holes.
According to an embodiment of the utility model, a plurality of plug welding holes are arranged on the stainless steel lining plate at intervals.
According to an embodiment of the utility model, the distance between adjacent plug welding holes is 200-500mm.
According to the embodiment of the utility model, the plug welding holes are arranged at intervals of square or triangle.
According to the embodiment of the utility model, the inner wall of the tower body is provided with a plurality of leakage detection holes, and the leakage detection holes are blocked by bolts so as to prevent dust and iron from polluting the threads of the leakage detection holes.
According to the embodiment of the utility model, the anticorrosive coating is made of anticorrosive paint or glass fiber reinforced plastic.
The utility model has the beneficial effects that:
the soda carbon steel tower body provided by the utility model adopts a structure of combining the stainless steel lining plate and the corrosion-resistant layer, wherein the main structural strength part of the tower body is provided by the external carbon steel part, and the stainless steel lining plate and the corrosion-resistant layer are adopted by the part of the tower wall which is contacted with corrosive medium in the tower, so that the service life of equipment can be greatly prolonged, and the corrosion allowance is not required to be considered by the carbon steel part, so that the weight of the equipment can be effectively reduced, and the frequency and cost for equipment maintenance and replacement are also reduced. In addition, the structure of combining the stainless steel lining plate and the anti-corrosion layer is also applicable to the partially used old tower body.
Drawings
FIG. 1 is a schematic view of a part of a soda ash carbon steel tower body with a stainless steel lining plate and an anti-corrosion layer;
FIG. 2 is a schematic structural view of the stainless steel lining plate and the tower body;
FIG. 3 is a schematic view of the structure of the edge welding and corrosion preventing layer of the stainless steel lining plate;
FIG. 4 is a schematic view of the structure of the stainless steel lining plate and the corrosion-resistant layer at the pipe joint opening;
fig. 5 is a schematic structural view of the stainless steel lining plate and the corrosion-resistant layer at the end socket.
Description of the drawings: 1-tower inner wall, 2-stainless steel lining board, 3-anticorrosive coating, 4-end socket, 5-connecting pipe, 6-leak detection hole, 7-bolt and 8-plug welding hole.
Detailed Description
The preparation method of the present utility model will be described in further detail with reference to specific examples. It is to be understood that the following examples are illustrative only and are not to be construed as limiting the scope of the utility model. All techniques implemented based on the above description of the utility model are intended to be included within the scope of the utility model.
The experimental methods used in the following examples are all conventional methods unless otherwise specified; the reagents, materials, etc. used in the examples described below are commercially available unless otherwise specified.
Example 1
The soda carbon steel tower body comprises a tower body inner wall 1, a stainless steel lining plate 2, an anti-corrosion layer 3, a connecting pipe opening 5 and a sealing head 4;
the stainless steel lining plate 2 is provided with a plurality of plug welding holes 8, the plug welding holes 8 are arranged on the stainless steel lining plate 2 at intervals of square, and the distance between the plug welding holes 8 arranged adjacently is 300mm; the stainless steel lining plate 2 is arranged on the inner wall 1 of the tower body through the plug welding holes 8, the edge of the stainless steel lining plate 2 is in paste welding connection with the inner wall 1 of the tower body, and the paste welding is full welding; the plug welding holes 8 are full-welded plug welding holes, and the arrangement of the stainless steel lining plate 2 can ensure that the tower body is not corroded when the inner wall 1 of the tower body is contacted with corrosive medium in the tower;
one side of the anti-corrosion layer 3 is arranged on the inner wall 1 of the tower body, and the other side of the anti-corrosion layer 3 extends and is lapped on the stainless steel lining plate 2 and is lapped to a position 40-80mm away from the edge of the stainless steel lining plate 2, so that the leakage probability is further reduced;
the anti-corrosion layer 3 extends from the inner wall of the connecting pipe opening 5 to the inner wall 1 of the tower body and is lapped on the stainless steel lining plate 2, and is lapped to a position 40-80mm away from the edge of the stainless steel lining plate 2.
The anti-corrosion layer 3 extends from the inner wall of the sealing head 4 to the inner wall 1 of the tower body and is lapped on the stainless steel lining plate 2, and is lapped to a position 40-80mm away from the edge of the stainless steel lining plate 2.
According to the embodiment of the utility model, the inner wall 1 of the tower body is provided with a plurality of leakage detection holes 6, and the leakage detection holes 6 are blocked by bolts 7 so as to prevent dust and iron skips from polluting the leakage detection hole threads.
According to the embodiment of the utility model, the anticorrosive coating is made of glass fiber reinforced plastic.
The embodiments of the present utility model have been described above. However, the present utility model is not limited to the above embodiment. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The soda carbon steel tower body with the stainless steel lining plate and the anti-corrosion layer is characterized by comprising a tower body inner wall (1), the stainless steel lining plate (2) and the anti-corrosion layer (3); the stainless steel lining plate (2) is provided with a plurality of plug welding holes (8), the stainless steel lining plate (2) is arranged on the inner wall (1) of the tower body through the plug welding holes (8), and the edge of the stainless steel lining plate (2) is in adhesive welding and connection with the inner wall (1) of the tower body; one side of the anti-corrosion layer (3) is arranged on the inner wall (1) of the tower body, and the other side of the anti-corrosion layer (3) extends and is lapped on the stainless steel lining plate (2) and is lapped to a position 30-100mm away from the edge of the stainless steel lining plate (2).
2. The soda ash carbon steel tower body with a stainless steel lining plate and an anti-corrosion layer according to claim 1, characterized in that the tower body further comprises a pipe connection port (5), and the anti-corrosion layer (3) extends from the inner wall of the pipe connection port (5) to the inner wall (1) of the tower body and is lapped on the stainless steel lining plate (2).
3. Soda ash carbon steel tower with stainless steel lining plate and corrosion protection layer according to claim 2, characterized in that the corrosion protection layer (3) extends from the inner wall of the take-over mouth (5) to the tower inner wall (1) and overlaps the stainless steel lining plate (2) and overlaps to a distance of 30-100mm from the edge of the stainless steel lining plate (2).
4. Soda carbon steel tower with stainless steel liner and corrosion protection according to claim 1 or 2, characterized in that the tower further comprises a head (4), the corrosion protection (3) extends from the inner wall of the head (4) to the tower inner wall (1) and overlaps the stainless steel liner (2).
5. Soda carbon steel tower with stainless steel liner and corrosion protection according to claim 4, characterized in that the corrosion protection (3) extends from the inner wall of the head (4) to the tower inner wall (1) and overlaps to a distance of 30-100mm from the edge of the stainless steel liner (2).
6. Soda carbon steel tower with stainless steel lining plate and corrosion protection layer according to claim 1, characterized in that several plug welding holes (8) are arranged on the stainless steel lining plate (2) at intervals.
7. Soda carbon steel tower with stainless steel lining and corrosion protection according to claim 6, characterized in that the distance between adjacently arranged plug welding holes (8) is 200-500mm.
8. The soda ash carbon steel tower body with the stainless steel lining plate and the corrosion protection layer according to claim 6 is characterized in that a plurality of plug welding holes (8) are arranged at intervals in a square shape or a triangle shape.
9. The soda carbon steel tower body with the stainless steel lining plate and the corrosion-resistant layer according to claim 1, wherein a plurality of leakage detection holes (6) are formed in the inner wall (1) of the tower body, and the leakage detection holes (6) are blocked by bolts (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321998601.7U CN220550939U (en) | 2023-07-27 | 2023-07-27 | Soda carbon steel tower body with stainless steel lining plate and anti-corrosion layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321998601.7U CN220550939U (en) | 2023-07-27 | 2023-07-27 | Soda carbon steel tower body with stainless steel lining plate and anti-corrosion layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220550939U true CN220550939U (en) | 2024-03-01 |
Family
ID=90003579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321998601.7U Active CN220550939U (en) | 2023-07-27 | 2023-07-27 | Soda carbon steel tower body with stainless steel lining plate and anti-corrosion layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220550939U (en) |
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2023
- 2023-07-27 CN CN202321998601.7U patent/CN220550939U/en active Active
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