CN213929890U - Novel acid injection port - Google Patents
Novel acid injection port Download PDFInfo
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- CN213929890U CN213929890U CN202022329066.9U CN202022329066U CN213929890U CN 213929890 U CN213929890 U CN 213929890U CN 202022329066 U CN202022329066 U CN 202022329066U CN 213929890 U CN213929890 U CN 213929890U
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- pipeline
- flange
- acid injection
- horizontal
- injection port
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Abstract
The utility model discloses a novel acid injection port, which comprises a horizontal pipeline and an acid injection pipeline; a tetrafluoroethylene layer is lined on the inner wall of the acid injection pipeline, and a second flange is sleeved on the outer wall of the middle part of the acid injection pipeline; a hole is formed in the middle pipe wall of the horizontal pipeline, a vertical pipeline extends out of the hole, tetrafluoroethylene layers are lined on the inner walls of the horizontal pipeline and the vertical pipeline, and a first flange is arranged at the inlet end of the vertical pipeline; the acid injection pipeline is vertically inserted into the vertical pipeline and is tightly and hermetically connected through the first flange and the second flange. The utility model discloses a novel annotate sour mouth and change full metal structure into metal lining tetrafluoroethylene structure, reasonable in design can reach the phenomenon that does not take place to annotate sour mouthful structural corrosion under the operating mode that concentrated sulfuric acid water injection was diluted to guarantee the long-term normal steady operation of device.
Description
Technical Field
The utility model relates to a pipeline engineering design field especially relates to a novel annotate sour mouth.
Background
The existing acid injection port structure is generally all-metal, the structure has an unsatisfactory effect on the working condition of injecting water and diluting concentrated sulfuric acid, the exothermic reaction is generated during the injection and diluting of the concentrated sulfuric acid to cause the temperature of a medium to rise, the corrosion of the acid injection port structure is easy to occur, and once the condition occurs, the pipeline leakage is caused, and the pipeline has to be stopped for maintenance or replacement, so that great economic loss is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's problem, provide a novel annotate sour mouth, can reach and do not take place to annotate the phenomenon of sour mouth structural corrosion under the operating mode that concentrated sulfuric acid water injection was diluted.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the novel acid injection port comprises a horizontal pipeline and an acid injection pipeline; a tetrafluoroethylene layer is lined on the inner wall of the acid injection pipeline, and a second flange is sleeved on the outer wall of the middle part of the acid injection pipeline; a hole is formed in the middle pipe wall of the horizontal pipeline, a vertical pipeline extends out of the hole, tetrafluoroethylene layers are lined on the inner walls of the horizontal pipeline and the vertical pipeline, and a first flange is arranged at the inlet end of the vertical pipeline; the acid injection pipeline is vertically inserted into the vertical pipeline and is tightly and hermetically connected through the first flange and the second flange.
Furthermore, a third flange and a fourth flange are respectively arranged at two ends of the horizontal pipeline.
Further preferably, the tetrafluoroethylene layer arranged on the horizontal pipeline extends from two ends of the tetrafluoroethylene layer and covers the end faces of the third flange and the fourth flange.
Further, a tetrafluoroethylene layer is arranged on the vertical pipeline, and one end of the tetrafluoroethylene layer extends and covers the end face of the first flange.
Further, a horizontal annular table is sleeved at the acid inlet end of the acid injection pipeline.
Further preferably, the tetrafluoroethylene layer arranged on the acid injection pipeline extends from one end of the tetrafluoroethylene layer and covers the end face of the horizontal annular table.
Further, the material of the acid injection pipeline, the second flange and the horizontal annular platform is 20 alloy.
Furthermore, the horizontal pipeline, the third flange and the fourth flange are made of carbon steel.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses a novel annotate sour mouth and change full metal structure into metal lining tetrafluoroethylene structure, reasonable in design can reach the phenomenon that does not take place to annotate sour mouthful structural corrosion under the operating mode that concentrated sulfuric acid water injection was diluted to guarantee the long-term normal steady operation of device.
Drawings
FIG. 1 is a schematic view of the novel acid injection port of the present invention;
wherein the reference numerals are:
a horizontal duct 1; an acid injection pipeline 2; a vertical duct 3; a first flange 4; a second flange 5; a third flange 6; a fourth flange 7 and a horizontal annular platform 8.
Detailed Description
The present invention will be described in detail and specifically with reference to the following embodiments and drawings so as to better understand the present invention, but the scope of the present invention is not limited by the following embodiments.
Examples
The embodiment provides a novel acid injection port, as shown in fig. 1, which comprises a horizontal pipeline 1 and an acid injection pipeline 2; a tetrafluoroethylene layer is lined on the inner wall of the acid injection pipeline 2, and a second flange 5 is sleeved on the outer wall of the middle part of the acid injection pipeline 2; a hole is formed in the middle pipe wall of the horizontal pipeline 1, a vertical pipeline 3 extends out of the hole, tetrafluoroethylene layers are lined on the inner walls of the horizontal pipeline 1 and the vertical pipeline 3, and a first flange 4 is arranged at the inlet end of the vertical pipeline 3; the acid injection pipeline 2 is vertically inserted into the vertical pipeline 3 and is tightly and hermetically connected through a first flange 4 and a second flange 5; and a third flange 6 and a fourth flange 7 are respectively arranged at two ends of the horizontal pipeline 1.
Above-mentioned novel notes acid mouth changes full metal construction into metal lining tetrafluoroethylene structure, and reasonable in design can reach and does not take place the phenomenon of notes acid mouth structural corrosion under the diluted operating mode of concentrated sulfuric acid water injection to guarantee the long-term normal steady operation of device.
As a preferable example, the tetrafluoroethylene layer provided on the horizontal pipe 1 extends from both ends thereof and covers the end surfaces of the third flange 6 and the fourth flange 7, so that the tetrafluoroethylene layer is also provided at the interface between the horizontal pipe 1 and the process pipe, thereby enhancing the corrosion prevention effect.
As a preferable example, the tetrafluoroethylene layer arranged on the vertical pipe 3 extends from one end and covers the end face of the first flange 4, so that the fastening and sealing connection part of the first flange 4 and the second flange 5 is also provided with the tetrafluoroethylene layer, and the corrosion prevention effect is enhanced.
As a preferred example, the acid inlet end of the acid injection pipeline 2 is sleeved with a horizontal annular platform 8, a tetrafluoroethylene layer arranged on the acid injection pipeline 2 is provided, and one end of the tetrafluoroethylene layer extends and covers the end face of the horizontal annular platform 8.
As a preferred example, the material of the acid injection pipeline 2, the second flange 5 and the horizontal annular platform 8 is 20 alloy; the horizontal pipeline 1, the third flange 6 and the fourth flange 7 are made of carbon steel.
Application example
The novel acid injection port provided by the embodiment is used in a three-well phenol acetone device, and the normal and stable operation of the device is not ensured due to the good corrosion resistance of the PTFE lining to sulfuric acid solution, so far, the situation of economic loss caused by the corrosion of the structure of the acid injection port does not occur.
When the novel acid filling port provided by the embodiment is not adopted, the phenomenon of corrosion of the structure of the acid filling port occurs when the device operates for about one year, the parking maintenance cost is too high, the device can only be used by temporarily adopting a method of wrapping the structure of the acid filling port with a PTFE coating layer, and the device is parked and replaced when being overhauled. This method is not very safe and requires frequent monitoring.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope and the embodiments of the present invention, and those skilled in the art should be able to realize that all the equivalent alternatives and obvious variations made by the present invention and the attached drawings are included in the scope of the present invention.
Claims (8)
1. The novel acid injection port is characterized by comprising a horizontal pipeline (1) and an acid injection pipeline (2); a tetrafluoroethylene layer is lined on the inner wall of the acid injection pipeline (2), and a second flange (5) is sleeved on the outer wall of the middle part of the acid injection pipeline (2); a hole is formed in the middle pipe wall of the horizontal pipeline (1) and a vertical pipeline (3) extends out of the hole, tetrafluoroethylene layers are lined on the inner walls of the horizontal pipeline (1) and the vertical pipeline (3), and a first flange (4) is arranged at the inlet end of the vertical pipeline (3); the acid injection pipeline (2) is vertically inserted into the vertical pipeline (3) and is tightly and hermetically connected through the first flange (4) and the second flange (5).
2. The novel acid injection port according to claim 1, wherein a third flange (6) and a fourth flange (7) are respectively arranged at two ends of the horizontal pipeline (1).
3. The novel acid injection port according to claim 2, characterized in that the tetrafluoroethylene layer arranged on the horizontal pipe (1) extends at both ends and covers the end faces of the third flange (6) and the fourth flange (7).
4. The new acid injection port according to claim 1, characterized by a tetrafluoroethylene layer provided on the vertical pipe (3) with one end extending and covering the end face of the first flange (4).
5. The novel acid injection port according to claim 1, wherein the acid inlet end of the acid injection pipeline (2) is sleeved with a horizontal annular table (8).
6. The novel acid injection port according to claim 5, characterized in that a tetrafluoroethylene layer is provided on the acid injection pipe (2), one end of which extends and covers the end face of the horizontal annular table (8).
7. The novel acid injection port according to claim 1, wherein the material of the acid injection pipeline (2), the second flange (5) and the horizontal annular table (8) is 20 alloy.
8. The novel acid injection port according to claim 1, wherein the horizontal pipe (1), the third flange (6) and the fourth flange (7) are made of carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022329066.9U CN213929890U (en) | 2020-10-19 | 2020-10-19 | Novel acid injection port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022329066.9U CN213929890U (en) | 2020-10-19 | 2020-10-19 | Novel acid injection port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213929890U true CN213929890U (en) | 2021-08-10 |
Family
ID=77162985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022329066.9U Active CN213929890U (en) | 2020-10-19 | 2020-10-19 | Novel acid injection port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213929890U (en) |
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2020
- 2020-10-19 CN CN202022329066.9U patent/CN213929890U/en active Active
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