CN211158644U - Device for slowing down atmospheric leg corrosion and atmospheric and vacuum distillation device - Google Patents
Device for slowing down atmospheric leg corrosion and atmospheric and vacuum distillation device Download PDFInfo
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- CN211158644U CN211158644U CN201921437096.2U CN201921437096U CN211158644U CN 211158644 U CN211158644 U CN 211158644U CN 201921437096 U CN201921437096 U CN 201921437096U CN 211158644 U CN211158644 U CN 211158644U
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Abstract
The utility model relates to an anticorrosion technical field particularly, relates to a slow down device and atmospheric pressure distillation plant that atmospheric leg corrodes. A device for slowing corrosion of atmospheric legs comprises a pipeline and a baffle assembly; the pipeline is internally provided with the baffling assembly, the baffling assembly comprises a supporting rod and a plurality of baffle plates, and the supporting rod extends along the axial direction of the pipeline; the baffle plates are fixed on the support rods at intervals and deflect at acute angles with the axis of the pipeline; any two adjacent baffle plates are staggered along the direction of the pipeline, and the deflection directions are opposite. Through the utility model discloses can change the inside fluidic mobile state of grow air leg, avoid the acceleration effect of bias current to the atmospheric leg corruption to can slow down the corruption destruction of atmospheric leg, ensure atmospheric and vacuum distillation plant's long period safety and stability operation effectively.
Description
Technical Field
The utility model relates to an anticorrosion technical field particularly, relates to a slow down device and atmospheric pressure distillation plant that atmospheric leg corrodes.
Background
The pipeline from the liquid phase outlet of each stage of the water cooler with reduced top to the reduced pressure water separation tank in the atmospheric and vacuum distillation device is commonly called as an atmospheric leg and is a self-flowing pipeline. The atmosphere leg is mainly used for sealing, preventing external atmosphere from entering a vacuum system in a series mode, and guaranteeing the vacuum state. HCl and H in the aqueous phase due to the reduced head system2The existence of S and the drift of the gravity flow pipeline generally cause the corrosion problem of the atmospheric leg to be serious all the time, and the problem of influencing the long-period safe and stable operation of the atmospheric and vacuum device is difficult.
In view of this, the utility model is especially provided.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a device for slowing down atmospheric leg corrosion, which comprises a pipeline and a baffling component;
the pipeline is internally provided with the baffling assembly, the baffling assembly comprises a supporting rod and a plurality of baffle plates, and the supporting rod extends along the axial direction of the pipeline; the baffle plates are fixed on the support rods at intervals and deflect at acute angles with the axis of the pipeline; any two adjacent baffle plates are staggered along the direction of the pipeline, and the deflection directions are opposite.
The utility model discloses a solve the problem that the atmospheric leg corrodes with higher speed of bias flow, provide a device that slows down atmospheric leg and corrode, when the fluid flows through the device automatically, through the baffling effect of the inside baffling board of device, can avoid the bias flow of liquid in the atmospheric leg effectively, and then slow down the corruption of condensing medium to the atmospheric leg.
According to another aspect of the utility model, the utility model discloses still relate to an atmospheric and vacuum distillation device, include as above the device that slows down the corruption of atmospheric leg.
Will the utility model provides a device sets up between the water cooler of decompression tower and atmosphere leg, can avoid the atmosphere leg to appear the bias current phenomenon better, slows down the corruption of condensate liquid to the atmosphere leg, guarantees atmospheric pressure relief device's long period safety and stability operation.
The utility model has the advantages that:
(1) through the utility model discloses can change the inside fluidic mobile state of grow air leg, avoid the bias current to the acceleration effect of atmospheric leg corruption, improve its service life. Effectively ensuring the long-period safe and stable operation of the atmospheric and vacuum distillation device.
(2) The utility model provides a device simple structure, convenient assembling, no moving part, environmental suitability is strong, can popularize and be applied to other similar environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of an apparatus for reducing atmospheric leg corrosion in examples 1 and 2 of the present invention;
FIG. 2 is a schematic structural diagram of an apparatus for reducing atmospheric leg corrosion according to embodiments 3 and 4 of the present invention;
fig. 3 is a top view of the inner member of the device according to embodiment 1 of the present invention;
FIG. 4 is a top view of a baffle plate in embodiment 1 of the present invention;
fig. 5 is a top view of the bottom support plate in embodiment 1 of the present invention;
fig. 6 is a schematic view of the opening of the middle support plate of the present invention.
In the figure:
1-pipeline; 2-atmosphere leg; 3-a flange; 4-baffle plate; 5-a support rod; 6-a support plate;
4A-is a left baffle plate; 4B-is a right baffle plate.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
According to one aspect of the present invention, the present invention relates to a device for mitigating atmospheric leg corrosion, comprising a pipeline and a baffle assembly;
the pipeline is internally provided with the baffling assembly, the baffling assembly comprises a supporting rod and a plurality of baffle plates, and the supporting rod extends along the axial direction of the pipeline; the baffle plates are fixed on the support rods at intervals and deflect at acute angles with the axis of the pipeline; any two adjacent baffle plates are staggered along the direction of the pipeline, and the deflection directions are opposite.
The utility model discloses a set up at least a set of in the pipeline baffling subassembly can change the inside fluidic flow state of atmosphere leg, avoids the acceleration effect of bias flow to the aqueous phase corruption to can slow down the corruption destruction of fluid to the atmosphere leg.
The connection of the baffle plate and the support rod is welding.
Preferably, the included angle between the baffle plate and the pipeline axis is 30-60 degrees.
The included angle between the baffle plate and the axis of the support rod is 30-60 degrees, so that the flow direction of fluid can be better changed, and the flow state of the fluid in the big air leg can be better changed.
Preferably, the shape of the baffle comprises a single arch.
Preferably, the height of the arch-shaped gap of the baffle plate is 0.5-0.8 time of the radius of the inner wall of the pipeline.
In one embodiment, the height of the arch gap of the baffle plate is 0.5-0.8 times of the radius of the inner wall of the pipe fitting, and can also be selected to be 0.55 time, 0.6 time, 0.65 time, 0.7 time or 0.75 time.
The utility model discloses an arch structure of baffling board is single bow-shaped, can not weld between baffling board and the device pipe wall, but the cooperation error that should minimize.
Preferably, one end of the baffle plate is fixed on the pipe wall of the pipeline, and the extending end is connected with the supporting rod and is spaced from the opposite pipe wall.
The structure can be firmer by fixing one end of the baffle plate on the pipe wall of the pipeline.
Preferably, in two adjacent baffles, the lower end of the baffle located relatively at the upper side is at the same height as the upper end of the baffle located relatively at the lower side.
The utility model discloses well left and right sides baffling board is symmetrical structure in the plan view, nevertheless crisscross on the bracing piece direction of height, and crisscross interval and baffling board opening height can design according to the actual application condition. Preferably, the lower end of the upper baffle plate and the upper end of the lower baffle plate in any two adjacent baffle plates are at the same height, so that the flowing state of liquid in the large atmosphere leg can be better changed, and the corrosion effect of the fluid on the atmosphere leg pipeline is relieved.
Preferably, the pipeline further comprises a support plate, the support plate is arranged at one end of the pipeline and is positioned between the pipeline and the atmospheric leg; the supporting plate is used for supporting or fixing the supporting rod;
the supporting plate is provided with at least one opening, and the pipeline is communicated with the atmosphere leg through the opening.
When the bottom supporting plate is provided with an opening, the shape of the opening corresponds to the shape of the notch of the baffle plate.
When a plurality of openings are arranged on the bottom support plate, the openings can be symmetrically and uniformly distributed.
The backup pad plays the supporting role to this device baffling subassembly. The diameter of the supporting plate needs to be larger than the inner diameter of the pipeline, and the bolt holes can be formed in the outer side of the supporting plate according to actual needs and the diameter of the supporting plate during installation of the flange bolts. The backup pad can directly support the bracing piece through the contact, also can be connected through modes such as welding with the bracing piece.
Preferably, the pipeline comprises at least one bend, and the support rod at the bend is connected with the baffle plate.
The bending angle of the pipeline is 120-150 degrees.
In one embodiment, the bending angle of the pipeline is 120-135 °, and 125 °, 130 °, 135 °, 140 °, or 145 ° can be selected.
The baffling assemblies in the bent pipe structure are at least two groups, welding is not needed between the two groups, the baffling assemblies can be respectively loaded from the upper part and the lower part of the bent pipe, and the uppermost baffle plate of the lower part assembly can support the supporting rods of the upper baffling assemblies.
An atmospheric and vacuum distillation unit comprising a means for mitigating atmospheric leg corrosion as described above.
Preferably, the upper end of the pipeline of the device for slowing down the corrosion of the atmospheric leg is connected with a condensing device of a vacuum tower in the atmospheric and vacuum distillation device, and the lower end of the pipeline is connected with the atmospheric leg;
the connection mode comprises flange connection.
The atmospheric and vacuum distillation apparatus is a generic term for both atmospheric distillation and vacuum distillation apparatus, and is called an atmospheric and vacuum distillation apparatus because the two apparatuses are usually together. The method mainly comprises three working procedures: (1) desalting and dehydrating crude oil; (2) distilling under normal pressure; (3) and (5) distilling under reduced pressure. The tower is the core of the whole device process, crude oil realizes fractionation in the fractionating tower through mass and heat transfer, and the crude oil is finally separated into products with different components. The most common atmospheric and vacuum plant process is a three-stage gasification process or "two-furnace three-tower process", and the towers in atmospheric and vacuum include: a primary distillation tower or a flash distillation tower, an atmospheric tower and a vacuum tower.
The utility model discloses the device that will slow down atmospheric leg and corrode sets up between the water cooler of decompression tower and atmospheric leg, flows into this device from upper portion after the condensation of decompression tower top commodity circulation, then flows to atmospheric leg pipeline through the lower part, reentrants decompression water knockout drum. Through the effect of this device, can be better prevent the bias flow of liquid at the atmosphere leg, slow down the corruption of atmosphere leg. The upper part of the pipeline is connected with the lower part in the same way and is connected through a flange.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Example 1
The structure schematic diagram of a device for slowing the corrosion of atmospheric legs is shown in figure 1, and the device comprises a pipeline 1, a baffle assembly and a support plate 6;
the pipeline 1 is internally provided with the baffling assembly, the baffling assembly comprises a support rod 5 and a plurality of baffle plates 4, and the support rod 5 extends along the axial direction of the pipeline 1; the baffle plates 4 are fixed on the support rods 5 at intervals and deflect at acute angles with the axis of the pipeline 1; any two adjacent baffle plates 4 are staggered along the direction of the pipeline 1, and the deflection directions are opposite; the included angle between the baffle plate 4 and the axis of the support rod 5 is 45 degrees;
the supporting plate 6 is arranged at one end of the pipeline 1 and is positioned between the pipeline 1 and the atmospheric leg 2; the supporting rod 5 is connected with the supporting plate 6; the support plate 6 is provided with an opening, as shown in fig. 5, the shape and position of which correspond to the notch of the lowermost baffle.
The baffle plate 4 is in a single arc shape, and the height of an arc-shaped gap of the baffle plate 4 is 0.8 times of the radius of the inner wall of the pipeline 1;
in two adjacent baffle plates 4, the lower end of the upper baffle plate 4 and the upper end of the lower baffle plate 4 which are relatively positioned are positioned at the same height;
the upper end of a pipeline 1 of the device for retarding the corrosion of the atmospheric leg is connected with a decompression tower condensing device, and the lower end of the pipeline 1 is connected with an atmospheric leg 2; the connection mode is flange 3 connection;
the top view of the internal components of the device for slowing the corrosion of the atmospheric leg is shown in FIG. 3;
the baffle is shown in a top view in fig. 4.
Example 2
The structure schematic diagram of a device for slowing the corrosion of atmospheric legs is shown in figure 1, and the device comprises a pipeline 1, a baffle assembly and a support plate 6;
the pipeline 1 is internally provided with the baffling assembly, the baffling assembly comprises a support rod 5 and a plurality of baffle plates 4, and the support rod 5 extends along the axial direction of the pipeline 1; the baffle plates 4 are fixed on the support rods 5 at intervals and deflect at acute angles with the axis of the pipeline 1; any two adjacent baffle plates 4 are staggered along the direction of the pipeline 1, and the deflection directions are opposite; the included angle between the baffle plate 4 and the axis of the support rod 5 is 60 degrees;
the supporting plate 6 is arranged at one end of the pipeline 1 and is positioned between the pipeline 1 and the atmospheric leg 2; the supporting rod 5 is connected with the supporting plate 6; four openings are arranged on the supporting plate 6, and the openings are uniformly distributed on the supporting plate 6, as shown in fig. 6B;
the baffle plate 4 is in a single arc shape, and the height of an arc-shaped gap of the baffle plate 4 is 0.6 times of the radius of the inner wall of the pipeline 1;
the lower end of the upper baffle plate 4 and the upper end of the lower baffle plate 4 in two adjacent baffle plates 4 are at the same height;
the upper end of a pipeline 1 of the device for retarding the corrosion of the atmospheric leg is connected with a decompression tower condensing device, and the lower end of the pipeline 1 is connected with an atmospheric leg 2; the connection is a flange 3 connection.
Example 3
The structure schematic diagram of a device for slowing the corrosion of atmospheric legs is shown in figure 2, and the device comprises a pipeline 1, a baffle assembly and a support plate 6;
the pipeline 1 is of a bent pipe structure, the bending angle is 135 degrees, and the pipeline 1 comprises two sets of baffling components; the baffle assembly comprises a support rod 5 and a plurality of baffle plates 4, wherein the support rod 5 extends along the axial direction of the pipeline 1; the baffle plates 4 are fixed on the support rods 5 at intervals and deflect at acute angles with the axis of the pipeline 1; any two adjacent baffle plates 4 are staggered along the direction of the pipeline 1, and the deflection directions are opposite; the included angle between the baffle plate 4 and the axis of the support rod 5 is 45 degrees; in two adjacent groups of the deflection assemblies, the support rod 5 of one group of the deflection assemblies is connected with the deflection plate 4 of the other group of the deflection assemblies;
the supporting plate 6 is arranged at one end of the pipeline 1 and is positioned between the pipeline 1 and the atmospheric leg 2; the supporting rod 5 is connected with the supporting plate 6; the support plate 6 is provided with an opening, as shown in fig. 5, the shape and position of which correspond to the notch of the lowermost baffle.
The baffle plate 4 is in a single arc shape, and the height of an arc-shaped gap of the baffle plate 4 is 0.5 times of the radius of the inner wall of the pipeline 1;
in the vertical pipeline, the lower end of the upper baffle plate 4 and the upper end of the lower baffle plate 4 which are relatively positioned in two adjacent baffle plates 4 are positioned at the same height;
the upper end of a pipeline 1 of the device for retarding the corrosion of the atmospheric leg is connected with a decompression tower condensing device, and the lower end of the pipeline 1 is connected with an atmospheric leg 2; the connection mode is flange 3 connection.
Example 4
The structure schematic diagram of a device for slowing the corrosion of atmospheric legs is shown in figure 2, and the device comprises a pipeline 1, a baffle assembly and a support plate 6;
the pipeline 1 is of a bent pipe structure, the bending angle is 135 degrees, and the pipeline 1 comprises two sets of baffling components; the baffle assembly comprises a support rod 5 and a plurality of baffle plates 4, wherein the support rod 5 extends along the axial direction of the pipeline 1; the baffle plates 4 are fixed on the support rods 5 at intervals and deflect at acute angles with the axis of the pipeline 1; any two adjacent baffle plates 4 are staggered along the direction of the pipeline 1, and the deflection directions are opposite; the included angle between the baffle plate 4 and the axis of the support rod 5 is 50 degrees; in two adjacent groups of the deflection assemblies, the support rod 5 of one group of the deflection assemblies is connected with the deflection plate 4 of the other group of the deflection assemblies;
the supporting plate 6 is arranged at one end of the pipeline 1 and is positioned between the pipeline 1 and the atmospheric leg 2; the supporting rod 5 is connected with the supporting plate 6; two openings are arranged on the supporting plate 6, and the openings are uniformly distributed on the supporting plate 6, as shown in fig. 6A;
the baffle plate 4 is in a single arc shape, and the height of an arc-shaped gap of the baffle plate 4 is 0.7 times of the radius of the inner wall of the pipeline 1;
in the vertical pipeline, the lower end of the upper baffle plate 4 and the upper end of the lower baffle plate 4 which are relatively positioned in two adjacent baffle plates 4 are positioned at the same height;
the upper end of a pipeline 1 of the device for retarding the corrosion of the atmospheric leg is connected with a decompression tower condensing device, and the lower end of the pipeline 1 is connected with an atmospheric leg 2; the connection mode is flange 3 connection.
The utility model discloses a specific device structure can change the inside fluidic mobile state of grow air leg, avoids the acceleration effect of bias current to the water phase corrosion to can slow down the corruption destruction of atmosphere air leg, improve its service period, effectively ensure the long period safety and stability operation of atmospheric and vacuum distillation plant, form effective helping hand for reducing safe risk.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The device for slowing the corrosion of the atmospheric leg is characterized by comprising a pipeline and a baffle component;
the pipeline is internally provided with the baffling assembly, the baffling assembly comprises a supporting rod and a plurality of baffle plates, and the supporting rod extends along the axial direction of the pipeline; the baffle plates are fixed on the support rods at intervals and deflect at acute angles with the axis of the pipeline; any two adjacent baffle plates are staggered along the direction of the pipeline, and the deflection directions are opposite.
2. The apparatus of claim 1, wherein the angle between the baffle plate and the axis of the pipeline is 30 ° to 60 °.
3. The apparatus for mitigating atmospheric leg erosion of claim 1, wherein the shape of the baffle comprises a single arch.
4. The apparatus for slowing corrosion of atmospheric legs according to claim 3, wherein the height of the arch-shaped gap of the baffle plate is 0.5 to 0.8 times the radius of the inner wall of the pipeline.
5. The apparatus of claim 1, wherein one end of the baffle is fixed to the wall of the pipeline, and the extended end of the baffle is connected to the support rod with a gap to the opposite wall.
6. The apparatus for slowing corrosion of an atmospheric leg as in claim 1 wherein the lower end of the baffle located relatively above in two adjacent baffles is at the same height as the upper end of the baffle located relatively below.
7. The apparatus for slowing corrosion of an atmospheric leg of claim 1, wherein the conduit further comprises a support plate disposed at one end of the conduit between the conduit and the atmospheric leg; the supporting plate is used for supporting or fixing the supporting rod;
the supporting plate is provided with at least one opening, and the pipeline is communicated with the atmosphere leg through the opening.
8. The apparatus of claim 1, wherein the pipe comprises at least one bend, and the support rod at the bend is connected to the baffle.
9. An atmospheric and vacuum distillation unit comprising the apparatus for mitigating atmospheric leg corrosion of any of claims 1 to 8.
10. The atmospheric and vacuum distillation unit as defined in claim 9, wherein the atmospheric leg corrosion retarding device has an upper end connected to the condensing unit of the vacuum tower in the atmospheric and vacuum distillation unit and a lower end connected to the atmospheric leg;
the connection mode comprises flange connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921437096.2U CN211158644U (en) | 2019-08-30 | 2019-08-30 | Device for slowing down atmospheric leg corrosion and atmospheric and vacuum distillation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921437096.2U CN211158644U (en) | 2019-08-30 | 2019-08-30 | Device for slowing down atmospheric leg corrosion and atmospheric and vacuum distillation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211158644U true CN211158644U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921437096.2U Active CN211158644U (en) | 2019-08-30 | 2019-08-30 | Device for slowing down atmospheric leg corrosion and atmospheric and vacuum distillation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN211158644U (en) |
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2019
- 2019-08-30 CN CN201921437096.2U patent/CN211158644U/en active Active
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