CN220366077U - Novel pipeline flange anticorrosion protection cover - Google Patents
Novel pipeline flange anticorrosion protection cover Download PDFInfo
- Publication number
- CN220366077U CN220366077U CN202320586049.4U CN202320586049U CN220366077U CN 220366077 U CN220366077 U CN 220366077U CN 202320586049 U CN202320586049 U CN 202320586049U CN 220366077 U CN220366077 U CN 220366077U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- flange
- shell
- protection cover
- corrosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005260 corrosion Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000007797 corrosion Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920006351 engineering plastic Polymers 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000005536 corrosion prevention Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to the technical field of pipeline flange corrosion prevention, which can simply, conveniently and effectively solve the problem of pipeline flange corrosion prevention. The utility model provides a novel anti-corrosion protection cover for a pipeline flange, which adopts a device composed of a left shell, a right shell which can be screwed with each other through self threads, a shell fastening nut, a flange pipeline hole, a pipeline hole sealing ring and a sealing ring between the shells, wherein the device is used for sealing a part of the pipeline flange which is easy to corrode, and isolating corrosive gas or liquid, so that the anti-corrosion problem of the pipeline flange is solved. The technical scheme adopted by the utility model can be clearly understood and realized by a person skilled in the art.
Description
Technical Field
The utility model relates to the technical field of pipeline flange corrosion prevention, in particular to a novel pipeline flange corrosion prevention protective cover.
Background
The pipeline flange is a necessary device for connecting pipelines for conveying gas and liquid. However, because the pipe flange is either open-air or buried underground, it is susceptible to corrosion by water, moisture or other corrosive gases or liquids. Thereby causing damage, water leakage and air leakage of the pipeline; even causes environmental pollution, and affects production and life. Therefore, in order to prevent the pipe flange from being corroded, the following methods are mainly used for corrosion prevention treatment except that the pipe flange cannot be directly buried underground:
1. corrosion protection method for paint
Generally, an epoxy zinc-rich primer is adopted, the anti-corrosion paint is required to have the rust removal quality reaching Sa2.5 grade before being coated, but the grease dirt on the surface of a connecting piece and the gap is difficult to clean and the rust removal quality is difficult to reach the standard specification requirements at the flange connection part, particularly at the gap, so that the coated anti-corrosion paint is easy to fall off and the ideal anti-corrosion effect is difficult to reach.
2. Method for preventing corrosion by winding heat-shrinkable tape or heat-shrinkable sleeve
Such corrosion protection is generally accomplished by cleaning, baking, heating, winding, rolling, etc. the heat shrinkable tape (sleeve) material and tools or equipment such as flame spray guns, press rolls, etc. Not only is the procedure complicated, time consuming and labor consuming, but also the cost is very high.
3. Corrosion protection method for viscoelastic materials
After the flange gap is completely filled by injecting the flange anticorrosive agent (or anticorrosive paste) into the gap between the two flange surfaces, a layer of viscoelastic body anticorrosive adhesive tape is wrapped on the periphery of the flange surfaces, so that the filled anticorrosive agent cannot flow outwards. Although the method has good anti-corrosion effect, the method needs careful operation, is more troublesome and has higher cost for applying the viscoelastic body anti-corrosion technology.
4. Flange protection method
Such flange protective sleeves are usually made of plastic or cloth and, although they can function to prevent external dust from entering the flange, they cannot prevent water, moisture and other corrosive gases or liquids from entering the flange and causing corrosion problems.
Disclosure of Invention
The utility model provides a novel anti-corrosion protection cover for a pipeline flange, which can simply, conveniently and effectively solve the problem of corrosion resistance of the pipeline flange. The technical scheme adopted for solving the technical problems is as follows:
the device is characterized in that the device is formed by screwing the male screw thread (1) on the left shell (4) and the female screw thread (8) on the right shell (6) with each other, and the shell fastening nut (5), the flange pipeline hole (2), the pipeline hole sealing ring (3) and the left and right shell sealing rings (7) which are contained in the device, so that the part of the pipeline flange which is easy to corrode is sealed, in particular the left shell (4), the shell fastening nut (5) and the right shell (6) are made of engineering plastics with high strength such as nylon, and the pipeline hole sealing ring (3) and the shell sealing ring (7) are made of corrosion-resistant silica gel materials, so that corrosive gas or liquid is isolated, and the problem of corrosion resistance of the pipeline flange is solved. The technical scheme adopted by the utility model can be clearly understood and realized by a person skilled in the art.
Compared with the prior art, the utility model has the beneficial effects that: (1) the whole device has only left and right two shells provided with connecting threads (each shell is provided with a shell fastening nut), three sealing rings and fewer parts. (2) The light-weight plastic is mainly made of engineering plastics with high strength such as nylon and a small amount of corrosion-resistant silica gel. (3) The materials are common and easy to obtain. (4) The production and the manufacture are simple and easy. (5) The cost is low. (6) High cost performance. (7) The anti-corrosion protection cover for the pipeline flange is simple and convenient to install, construct and use (for the anti-corrosion protection cover for the pipeline flange with a small caliber, the anti-corrosion protection cover for the pipeline flange with a large caliber can be installed or detached by bare hands, and the anti-corrosion protection cover for the pipeline flange with a large caliber is easy to install or detach by using a corresponding spanner through a shell fastening nut). (8) Particularly, the waterproof, moisture-proof or corrosion-proof performance of gas and liquid is good, and the problem that the pipeline flange cannot be buried underground directly is solved. (9) The anti-corrosion device not only can effectively solve the anti-corrosion problem of the pipeline flange, but also can prevent gas or liquid with lower pressure in the pipeline from leaking outwards. The detached anti-corrosion protection cover of the pipeline flange can be reused as long as the anti-corrosion protection cover is not damaged.
Drawings
In fig. 1, 1 is a male screw connected to the right housing 6 of fig. 2. 2 is a duct hole. And 3 is a pipeline hole sealing ring. 4 is the left housing. And 5 is a shell tightening nut.
In fig. 2, 6 is a right housing. And 3 is a pipeline hole sealing ring. And 7 is a sealing ring between the left shell and the right shell. 2 is a duct hole. 8 is a female thread connected to the left housing in fig. 1. And 5 is a shell tightening nut.
Fig. 3 is a schematic view of the device comprising the components of fig. 1 and 2 after tightening and abutting the pipe flanges (including two abutting pipes) and sealing the pipe flanges (flange and pipe portions not broken away). 6 is the right housing shown in fig. 2. And 9 is a thread for connecting the left and right shells. 4 is the left housing shown in fig. 1. Reference numeral 10 denotes a pipe flange and a pipe. And 3 is a pipeline hole sealing ring. And 7 is a sealing ring between the left shell and the right shell. And 5 is a shell tightening nut.
Detailed Description
According to the anti-corrosion protection cover for the pipeline flange, the shell part can be manufactured by engineering plastics such as nylon with corresponding performance according to the requirements of corrosion resistance, compression resistance, impact resistance, wear resistance, flexibility and aging resistance and corresponding specifications, and can be requested to plastic mould design and manufacturers, so that the anti-corrosion protection cover is easy to process and convenient for mass production; low cost, stable quality and reliability. The sealing ring has various types, materials and performances, belongs to matched products, and is suitable for being selected correspondingly, such as a silica gel sealing ring and the like. These are very common and yet simple products, whether manufactured and assembled without any difficulty to those skilled in the art.
Claims (5)
1. Novel pipeline flange anticorrosion protection cover comprises left casing (4), right casing (6), casing fastening nut (5), flange pipeline hole (2), flange pipeline hole sealing washer (3), sealing washer (7) between the casing, male screw (1), female screw (8), characterized by: the flange pipeline sealing device comprises a left shell (4) and a right shell (6), wherein a shell fastening nut (5), a flange pipeline hole (2) and a pipeline hole sealing ring (3) are arranged in the middle of each shell.
2. The novel anti-corrosion protection cover for the pipeline flange according to claim 1, which is characterized in that: the left shell (4) is provided with a male thread (1) connected with the right shell (6).
3. The novel anti-corrosion protection cover for the pipeline flange according to claim 1, which is characterized in that: the right shell (6) is provided with a female thread (8) connected with the left shell (4).
4. The novel anti-corrosion protection cover for the pipeline flange according to claim 1, which is characterized in that: the right housing (6) is provided with a seal ring (7) between the left housing and the right housing.
5. The novel anti-corrosion protection cover for the pipeline flange according to claim 1, which is characterized in that: the left shell (4) and the right shell (6) are made of engineering plastics with high strength; the sealing ring (3) of the pipeline hole and the sealing ring (7) between the shells are made of corrosion-resistant silica gel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320586049.4U CN220366077U (en) | 2023-03-18 | 2023-03-18 | Novel pipeline flange anticorrosion protection cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320586049.4U CN220366077U (en) | 2023-03-18 | 2023-03-18 | Novel pipeline flange anticorrosion protection cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220366077U true CN220366077U (en) | 2024-01-19 |
Family
ID=89517688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320586049.4U Active CN220366077U (en) | 2023-03-18 | 2023-03-18 | Novel pipeline flange anticorrosion protection cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220366077U (en) |
-
2023
- 2023-03-18 CN CN202320586049.4U patent/CN220366077U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |