CN218378279U - Concentrated sulfuric acid pipeline expansion compensation device - Google Patents
Concentrated sulfuric acid pipeline expansion compensation device Download PDFInfo
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- CN218378279U CN218378279U CN202220254155.8U CN202220254155U CN218378279U CN 218378279 U CN218378279 U CN 218378279U CN 202220254155 U CN202220254155 U CN 202220254155U CN 218378279 U CN218378279 U CN 218378279U
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- pipeline
- pipe fitting
- sulfuric acid
- concentrated sulfuric
- telescopic pipe
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Abstract
The utility model discloses a concentrated sulfuric acid pipeline compensation arrangement that stretches out and draws back, include: pipeline body, filler compress tightly lid, sealing filler and flexible pipe fitting, the pipeline body one end outside is equipped with flexible pipe fitting, flexible pipe fitting one end is equipped with the filler and compresses tightly the lid, the filler compresses tightly and is equipped with sealing filler between lid and the flexible pipe fitting, flexible pipe fitting is kept away from the filler and is compressed tightly lid one end and be equipped with the pipe joint, the utility model discloses the tetrafluoro packing root is woven by pure polytetrafluoroethylene fiber through weaving equipment and is formed, not through PTFE emulsion and lubricating grease processing. Because of by solid weaving and have pliable and tough adjustability, so with the axle, the cooperation that the stuffing box can be fine has excellent corrosion resisting property, good self-lubricity and antiseized nature, realize that straight line socket joint formula is flexible and possess the compensation arrangement of great pulling force and great flexible volume, guarantee concentrated sulfuric acid and avoided the inside problem of long-pending sour of pipeline when the pipeline difference in temperature compensation of transportation in-process is moderate.
Description
Technical Field
The utility model relates to a concentrated sulfuric acid pipeline carries technical field, specifically is concentrated sulfuric acid pipeline compensation arrangement that stretches out and draws back.
Background
In view of the physicochemical properties of concentrated sulfuric acid in the industrial concentrated sulfuric acid production process, the concentrated sulfuric acid must be transported by a sealed pipeline, the concentrated sulfuric acid transportation pipeline used in the industry at present is basically a corrosion-resistant metal pipeline, and based on the temperature difference expansion of the corrosion-resistant metal pipeline, the traditional transportation pipeline design adopts a corrosion-resistant corrugated compensator or a U-shaped compensation bend to compensate the temperature difference expansion of a pipeline.
The two compensation modes can meet the requirement of production and conveying of concentrated sulfuric acid at normal temperature or with small temperature difference, but in winter climate in northwest of China, the temperature difference between a conveying medium of a concentrated sulfuric acid conveying pipeline and external air temperature is increased rapidly, the maximum temperature difference can reach 60-70 ℃, the expansion displacement of a 300-meter sulfuric acid conveying pipeline is increased, the traditional corrosion-resistant corrugated compensator has the problems that the expansion tension is insufficient, the pipeline is broken, acid leakage is caused, and the like in the local expansion of the pipeline, the U-shaped compensation curve compensates for the incomplete pipeline purging after the pipeline conveying is finished in winter, the pipeline is blocked due to 98% acid crystallization when the temperature is lower than 0 ℃ in winter, and the normal sulfuric acid conveying is influenced. Therefore, the pipeline temperature difference compensation and proper neutralization of the concentrated sulfuric acid in the conveying process are ensured, and the acid accumulation in the pipeline is avoided, so that the normal production and conveying of the concentrated sulfuric acid in a low-temperature environment are guaranteed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flexible compensation arrangement of concentrated sulfuric acid pipeline to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: concentrated sulfuric acid pipeline compensation arrangement that stretches out and draws back includes: the pipeline comprises a pipeline body, a packing pressing cover, sealing packing and a telescopic pipe fitting, wherein the telescopic pipe fitting is arranged on the outer side of one end of the pipeline body, the packing pressing cover is arranged at one end of the telescopic pipe fitting, the sealing packing is arranged between the packing pressing cover and the telescopic pipe fitting, and a pipeline joint is arranged at one end, away from the packing pressing cover, of the telescopic pipe fitting.
Furthermore, a flange is arranged at the joint of one end of the packing pressing cover and the telescopic pipe fitting.
Furthermore, flanges are arranged at two ends of the telescopic pipe fitting.
Further, the two ends of the pipeline joint are provided with flanges, one end of the pipeline joint is the same as the inner diameter of the telescopic pipe fitting, and the other end of the pipeline joint is the same as the inner diameter of the pipeline body.
Furthermore, the two ends of the pipeline joint are in arc transition connection.
Furthermore, a convex ring is arranged on the inner wall of the middle part of the telescopic pipe fitting at the clamping part of the sealing filler.
Further, the sealing filler is tetrafluoro packing.
Furthermore, the telescopic pipe fitting is made of 316L materials.
Furthermore, the pipeline body, the filler compressing cover, the telescopic pipe fitting and the pipeline joint are connected through flanges, and mounting holes are formed.
Furthermore, a flange pad is arranged at the flange joint of the telescopic pipe fitting.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a pipeline body, the filler that set up compress tightly lid and sealing filler, realized when concentrated sulfuric acid pipeline expansion compensation device uses, through adopting the flexible pipe fitting of 316L material pipeline preparation, adopt the sealing filler tetrafluoro packing, the tetrafluoro packing is woven by pure polytetrafluoroethylene fibre through weaving equipment and is formed, does not handle through PTFE emulsion and lubricating grease. Because of weaving by solid and have pliable and tough adjustability, so with the axle, the cooperation that the gland packing can be fine has remarkable corrosion resisting property, good self-lubricity and antiseized nature, realizes that straight line socket joint formula is flexible and possess great pulling force and the compensation arrangement of great flexible volume, has avoided the inside long-pending sour problem of pipeline when guaranteeing that concentrated sulfuric acid is moderate in the pipeline difference in temperature compensation of transportation process.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In FIG. 1: 1-a pipe body; 2-a packing compression cover; 3-sealing packing; 4-telescopic pipe fittings; 5-pipe joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: concentrated sulfuric acid pipeline compensation arrangement that stretches out and draws back includes: pipeline body 1, pack and compress tightly lid 2, sealing filler 3 and flexible pipe fitting 4, telescopic pipe fitting 4 has been cup jointed in the 1 one end outside of pipeline body, and 4 one ends of flexible pipe fitting have through bolted connection pack and compress tightly lid 2, and the joint has sealing filler 3 between packing and compress tightly lid 2 and the flexible pipe fitting 4, and flexible pipe fitting 4 keeps away from to pack and compresses tightly lid 2 one end and have pipe joint 5 through bolted connection.
Pack and compress tightly 2 one ends of lid and telescopic pipe 4 junction integrated into one piece and have the flange, and telescopic pipe 4 both ends integrated into one piece has the flange, and 5 both ends integrated into one piece of pipe joint have the flange, and 5 one ends of pipe joint are the same with telescopic pipe 4 internal diameters, and the 5 other ends of pipe joint are the same with 1 internal diameters of pipeline body, are arc transitional coupling between 5 both ends of pipe joint.
The inner wall of the middle part of the telescopic pipe fitting 4 is located at the clamping part of the sealing packing 3, the sealing packing 3 is a tetrafluoro packing, the telescopic pipe fitting 4 is made of 316L material, the pipeline body 1, the packing compression cover 2, the telescopic pipe fitting 4 and the pipeline joint 5 are connected through flanges, and mounting holes are formed in the flange connection parts of the telescopic pipe fitting 4.
The working principle is as follows: during the pipeline transportation process of industrial concentrated sulfuric acid in a large temperature difference environment, the telescopic pipe fitting of the compensation device can realize the telescopic effect of the compensation pipeline under the condition of increasing the temperature difference through the relative displacement of the position of the pipe fitting and the filler, and meanwhile, the defect that the pipeline is blocked by acid accumulated inside the pipeline does not exist in the large tension advantage of the U-shaped compensation bend. The corrosion resistance and compensation of the pipeline are excellent, and the using effect of the concentrated sulfuric acid pipeline is good at present.
The functions are as follows: the problem of temperature difference telescopic compensation of the industrial concentrated sulfuric acid in the pipeline conveying process in a large temperature difference environment is effectively solved, and stable production and conveying of the industrial concentrated sulfuric acid are ensured. The phenomenon of production and conveying interruption of the industrial concentrated sulfuric acid caused by acid leakage due to insufficient temperature difference expansion compensation in the pipeline conveying process of the industrial concentrated sulfuric acid in a large temperature difference environment is avoided.
When the concentrated sulfuric acid pipeline telescopic compensation device is used, a pipeline made of 316L materials is used for manufacturing the telescopic pipe fitting 4, a sealing filler 3-tetrafluoro packing is used, and the tetrafluoro packing is formed by weaving pure polytetrafluoroethylene fibers through weaving equipment and is not treated by PTFE emulsion and lubricating grease. Because of by solid weaving and have pliable and tough adjustability, so with the axle, the cooperation that the stuffing box can be fine has excellent corrosion resisting property, good self-lubricity and antiseized nature, realize that straight line socket joint formula is flexible and possess the compensation arrangement of great pulling force and great flexible volume, guarantee concentrated sulfuric acid and avoided the inside problem of long-pending sour of pipeline when the pipeline difference in temperature compensation of transportation in-process is moderate.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Concentrated sulfuric acid pipeline compensation arrangement that stretches out and draws back includes: pipeline body (1), filler compress tightly lid (2), sealing filler (3) and telescopic tube spare (4), its characterized in that: the pipeline is characterized in that a telescopic pipe fitting (4) is arranged on the outer side of one end of the pipeline body (1), a packing pressing cover (2) is arranged at one end of the telescopic pipe fitting (4), a sealing packing (3) is arranged between the packing pressing cover (2) and the telescopic pipe fitting (4), and a pipeline joint (5) is arranged at one end, away from the packing pressing cover (2), of the telescopic pipe fitting (4).
2. The concentrated sulfuric acid pipeline expansion compensation device of claim 1, characterized in that: and a flange is arranged at the joint of one end of the packing pressing cover (2) and the telescopic pipe fitting (4).
3. The concentrated sulfuric acid pipeline expansion compensation device of claim 1, characterized in that: flanges are arranged at two ends of the telescopic pipe fitting (4).
4. The concentrated sulfuric acid pipeline expansion compensation device of claim 1, characterized in that: the pipeline joint is characterized in that flanges are arranged at two ends of the pipeline joint (5), one end of the pipeline joint (5) is identical to the inner diameter of the telescopic pipe fitting (4), and the other end of the pipeline joint (5) is identical to the inner diameter of the pipeline body (1).
5. The concentrated sulfuric acid pipeline expansion compensation device of claim 1, characterized in that: the two ends of the pipeline joint (5) are in arc transition connection.
6. The concentrated sulfuric acid pipeline stretch compensation device of claim 1, characterized in that: the inner wall of the middle part of the telescopic pipe fitting (4) is provided with a convex ring at the clamping part of the sealing filler (3).
7. The concentrated sulfuric acid pipeline expansion compensation device of claim 1, characterized in that: the sealing packing (3) is a tetrafluoro packing.
8. The concentrated sulfuric acid pipeline expansion compensation device of claim 1, characterized in that: the telescopic pipe fitting (4) is made of 316L materials.
9. The concentrated sulfuric acid pipeline expansion compensation device of claim 1, characterized in that: the pipeline joint is characterized in that the pipeline body (1), the filler pressing cover (2), the telescopic pipe fitting (4) and the pipeline joint (5) are connected through flanges, and mounting holes are formed.
10. The concentrated sulfuric acid pipeline expansion compensation device of claim 1, characterized in that: and a flange pad is arranged at the flange joint of the telescopic pipe fitting (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220254155.8U CN218378279U (en) | 2022-02-08 | 2022-02-08 | Concentrated sulfuric acid pipeline expansion compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220254155.8U CN218378279U (en) | 2022-02-08 | 2022-02-08 | Concentrated sulfuric acid pipeline expansion compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218378279U true CN218378279U (en) | 2023-01-24 |
Family
ID=84950203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220254155.8U Active CN218378279U (en) | 2022-02-08 | 2022-02-08 | Concentrated sulfuric acid pipeline expansion compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218378279U (en) |
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2022
- 2022-02-08 CN CN202220254155.8U patent/CN218378279U/en active Active
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