Petrochemical engineering pipeline filter capable of adjusting filtering precision

Abstract

The utility model discloses a petrochemical engineering pipeline filter capable of adjusting filtering precision, and belongs to the field of petrochemical engineering pipeline filters. The feeding end and the discharging end are fixedly connected to the two sides of the filtering pipe, the sealing hoop rings are fixedly installed at the feeding end and the discharging end and used for being connected with an oil pipe, a fixed outer cylinder is arranged in the filtering pipe, and the top end of the fixed outer cylinder is fixedly connected with the inner wall of the filtering pipe through a sealing edge; fixed filter holes are distributed in the side face of the fixed outer cylinder at equal intervals, and the feeding end is communicated with the interior of the fixed outer cylinder. According to the petrochemical engineering pipeline filter capable of adjusting the filtering precision, the size and the number of the combined filtering holes can be conveniently changed by adjusting the movement of the inner cylinder in the fixed outer cylinder, so that the filtering precision can be adjusted, the filter can adapt to different working condition requirements due to the design, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The present application relates to the technical field of petrochemical pipeline filters, and in particular to a petrochemical pipeline filter with adjustable filtration accuracy. Background Art

[0002] Petrochemical pipeline filters are a type of equipment specifically designed for filtering materials in petrochemical production. Their main function is to filter out solid particles in liquids or gases to protect downstream equipment from damage.

[0003] Most of the filters used in petrochemical industry are basket filters. The filtration accuracy of basket filters is usually determined by the structure and material of their filter mesh. Once manufactured, their filtration accuracy is relatively fixed and difficult to adjust. This may lead to the filtration accuracy being too high or too low under certain working conditions, affecting production efficiency or product quality.

[0004] Therefore, the present application provides a petrochemical pipeline filter with adjustable filtration accuracy to solve the above problems. Summary of the Invention

[0005] The present application provides a petrochemical pipeline filter with adjustable filtration accuracy, aiming to solve the problem in the background art that the existing petrochemical pipeline filters are affected in production efficiency and production quality due to the inconvenience in adjusting the filtration accuracy.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a petrochemical pipeline filter with adjustable filtration accuracy, comprising a filter tube, a feed end and a discharge end fixedly connected on both sides of the filter tube, and a sealing hoop fixedly installed on the feed end and the discharge end for connecting the oil pipe.

[0007] A fixed outer cylinder is provided in the filter tube, the top end of the fixed outer cylinder is fixedly connected to the inner wall of the filter tube by edge sealing, fixed filter holes are evenly distributed on the side of the fixed outer cylinder, the feed end is connected to the interior of the fixed outer cylinder, and the discharge end is connected to the space between the fixed outer cylinder and the filter tube.

[0008] An adjusting inner cylinder is axially movable in the fixed outer cylinder, and its top end is connected to the feed end. The outer wall of the adjusting inner cylinder is in contact with the inner wall of the fixed outer cylinder. An adjusting filter hole aligned with the fixed filter hole is opened on the adjusting inner cylinder. The fixed filter hole and the adjusting filter hole are combined to form a combination of filter holes of different sizes by staggering the two.

[0009] A piston head is located within the filter tube at a position corresponding to the top of the adjustable inner cylinder, allowing longitudinal movement and contact with the inner wall of the filter tube. The piston head is connected to the top of the adjustable inner cylinder via a connecting rod. An adjustment bolt, threadedly connected to the top of the piston head and used to drive the piston head's movement, is rotatably connected to the top of the filter tube. In this way, by adjusting the movement of the inner cylinder within the fixed outer cylinder, the size and number of the combined filter holes can be easily changed, thereby adjusting the filtration accuracy. This design allows the filter to adapt to different operating conditions, improving production efficiency and product quality.

[0010] Preferably, the top of the adjusting inner cylinder is parallel to the top of the fixed outer cylinder, and the lowest point of the top of the adjusting inner cylinder is kept below the level of the feeding end to ensure that the material enters through the top of the adjusting inner cylinder.

[0011] Preferably, the highest point of the top of the fixed outer cylinder is maintained above the level of the discharge end to ensure that the material must pass through the adjustable filter hole and the fixed filter hole.

[0012] Preferably, the top end of the regulating inner cylinder has a sealing flange in contact with the inner wall of the filter tube.

[0013] Preferably, the inner wall of the filter tube is longitudinally slidably connected to a limit plate fixedly connected to the connecting rod.

[0014] Preferably, there are four connecting rods in total and they are distributed in a ring array on the top of the sealing flange.

[0015] Preferably, a rubber sleeve is mounted on the waist of the piston head and is pressed tightly against the inner wall of the filter tube.

[0016] Preferably, an upper end cover rotatably connected to the adjusting bolt is screwed onto the top end of the filter tube, and a sealing ring in contact with the top opening of the filter tube is sleeved on the outside of the bottom end of the upper end cover.

[0017] Preferably, the top surface of the upper end cover is provided with a scale surrounding the adjusting bolt for marking the caliber of the combined filter hole, and the adjusting bolt is provided with a pointer.

[0018] This petrochemical pipeline filter with adjustable filtration accuracy can conveniently change the size and number of combined filter holes by adjusting the movement of the inner cylinder within the fixed outer cylinder, thereby adjusting the filtration accuracy. This design enables the filter to adapt to different working conditions and improve production efficiency and product quality.

[0019] In the event of wear or failure within the filter, this petrochemical pipeline filter with adjustable filtration accuracy can be easily removed due to the threaded connection between the upper end cap and the filter tube, allowing for inspection, repair, or replacement of the filter interior. This significantly reduces overall filter replacement costs and improves maintenance convenience and affordability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the structure of a petrochemical pipeline filter with adjustable filtration accuracy;

[0021] Figure 2 This is a schematic diagram of the internal structure of a petrochemical pipeline filter with adjustable filtration accuracy;

[0022] Figure 3 for Figure 2 Schematic diagram of the structure enlarged at point A.

[0023] In the picture:

[0024] 1. Filter tube; 11. Feed end; 12. Discharge end; 13. Upper end cover; 131. Sealing ring; 132. Scale;

[0025] 2. Sealing hoop; 3. Fixing outer cylinder; 31. Sealing edge; 32. Fixing filter hole; 4. Adjusting inner cylinder; 41. Sealing flange; 42. Adjusting filter hole;

[0026] 5. Connecting rod; 6. Piston head; 61. Rubber sleeve; 7. Adjusting bolt; 71. Pointer; 8. Limit plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application. Example

[0028] This embodiment provides a petrochemical pipeline filter with adjustable filtration accuracy, such as Figure 1-Figure 3 As shown, the petrochemical pipeline filter with adjustable filtration accuracy includes a filter tube 1, a feed end 11 and a discharge end 12 fixedly connected to both sides of the filter tube 1, and a sealing hoop 2 fixedly installed on the feed end 11 and the discharge end 12 for connecting to the oil pipe.

[0029] A fixed outer cylinder 3 is provided inside the filter tube 1. The top of the fixed outer cylinder 3 is fixedly connected to the inner wall of the filter tube 1 through a sealing edge 31. Fixed filter holes 32 are evenly distributed on the side of the fixed outer cylinder 3. The discharge end 12 is connected to the space between the fixed outer cylinder 3 and the filter tube 1.

[0030] An adjusting inner cylinder 4 is axially movable in the fixed outer cylinder 3, and its top end is connected to the feed end 11. The outer wall of the adjusting inner cylinder 4 is in contact with the inner wall of the fixed outer cylinder 3. An adjusting filter hole 42 is provided on the adjusting inner cylinder 4 and is aligned with the fixed filter hole 32. The fixed filter hole 32 and the adjusting filter hole 42 are combined to form a combination of filter holes of different sizes by staggering the two.

[0031] At a position corresponding to the top of the adjusting inner cylinder 4 in the filter tube 1, a piston head 6 that contacts the inner wall of the filter tube 1 moves longitudinally. The piston head 6 is connected to the top of the adjusting inner cylinder 4 through a connecting rod 5. The top of the filter tube 1 is rotatably connected to an adjusting bolt 7 that is threaded with the top of the piston head 6 and is used to drive the piston head 6 to move.

[0032] During use, when no adjustment is made, the adjusting filter holes 42 on the adjusting inner cylinder 4 and the fixed filter holes 32 on the fixed outer cylinder 3 may be partially or completely misaligned, forming an initial filtration accuracy; when the filtration accuracy needs to be adjusted, the operator turns the adjusting bolt 7, and the rotation of the adjusting bolt 7 will drive the piston head 6 threaded therewith to move longitudinally in the filter tube 1. The movement of the piston head 6 drives the adjusting inner cylinder 4 to move axially in the fixed outer cylinder 3 through the connecting rod 5. The movement of the adjusting inner cylinder 4 will change the relative position of the adjusting filter holes 42 and the fixed filter holes 32, thereby changing the size and number of the combined filter holes, and then adjusting the filtration accuracy; during filtration, the material enters the inside of the adjusting inner cylinder 4 from the feed end 11, and according to the adjusted filtration accuracy, the material enters the space between the fixed outer cylinder 3 and the filter tube 1 through the combined filter holes, and the filtered material flows out from the discharge end 12, completing the filtration process.

[0033] It should be noted that the top of the adjusting inner cylinder 4 is parallel to the top of the fixed outer cylinder 3, and the lowest point of the top of the adjusting inner cylinder 4 is maintained below the level of the feed end 11 to ensure that the material enters through the top of the adjusting inner cylinder 4; ensure that the material can smoothly enter from the top of the adjusting inner cylinder 4 and flow downward along the outer wall of the adjusting inner cylinder 4 until it passes through the combined filter hole of the adjusting filter hole 42 and the fixed filter hole 32.

[0034] Among them, the highest point of the top of the fixed outer cylinder 3 is maintained above the level of the discharge end 12 to ensure that the material must pass through the adjustable filter hole 42 and the fixed filter hole 32; it ensures that after passing through the combined filter hole, the material can smoothly enter the space between the fixed outer cylinder 3 and the filter tube 1, and flow upward along the inner wall of the filter tube 1 until it flows out from the discharge end 12.

[0035] Furthermore, the top of the regulating inner cylinder 4 has a sealing flange 41 in contact with the inner wall of the filter tube 1; the sealing flange 41 can fit tightly on the inner wall of the filter tube 1 to form an effective sealing barrier to prevent material from leaking from the gap between the regulating inner cylinder 4 and the filter tube 1.

[0036] Specifically, the inner wall of the filter tube 1 is longitudinally slidably connected to a limit plate 8 fixedly connected to the connecting rod 5; the limit plate 8 limits the rotation of the adjustment inner cylinder 4 and the piston head 6 along with the adjustment bolt 7, ensuring the normal operation of the adjustment system.

[0037] Furthermore, a total of four connecting rods 5 are provided and distributed in a circular array at the top of the sealing flange 41; the four connecting rods 5 ensure the stability of the lifting and lowering of the inner cylinder 4.

[0038] More specifically, a rubber sleeve 61 is mounted at the waist of the piston head 6 , which is tightly pressed against the inner wall of the filter tube 1 . When the piston head 6 moves in the filter tube 1 , the rubber sleeve 61 can prevent material from leaking from the gap between the piston head 6 and the filter tube 1 . Example

[0039] The difference from Example 1 is that when the internal structure suffers from wear and tear, the replacement cost of the entire filter is high. In order to reduce maintenance costs, the top end of the filter tube 1 is screwed with an upper end cover 13 that is rotatably connected to the adjusting bolt 7, and the bottom end of the upper end cover 13 is externally sheathed with a sealing ring 131 that contacts the top opening of the filter tube 1.

[0040] When wear or failure occurs inside the filter, since the upper end cover 13 and the filter tube 1 are threadedly connected, the upper end cover 13 can be easily removed, and the inside of the filter can be inspected, repaired or replaced, which greatly reduces the replacement cost of the entire filter and improves the convenience and economy of maintenance.

[0041] Furthermore, the top surface of the upper end cover 13 has a scale 132 surrounding the adjusting bolt 7 for indicating the diameter of the combined filter hole, and the adjusting bolt 7 has a pointer 71; as the adjusting bolt 7 rotates, the pointer 71 indicates the scale 132 representing the diameter of the combined filter hole, thereby facilitating precise adjustment of the filtration accuracy.

[0042] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A petrochemical pipeline filter with adjustable filtration accuracy, comprising a filter tube (1), a feed end (11) and a discharge end (12) fixedly connected to both sides of the filter tube (1), and a sealing hoop (2) fixedly mounted on the feed end (11) and the discharge end (12) for connecting to an oil pipe, characterized in that: A fixed outer cylinder (3) is provided in the filter tube (1), the top end of the fixed outer cylinder (3) is fixedly connected to the inner wall of the filter tube (1) via a sealing edge (31), fixed filter holes (32) are evenly distributed on the side of the fixed outer cylinder (3), and the discharge end (12) is connected to the space between the fixed outer cylinder (3) and the filter tube (1); An adjusting inner cylinder (4) is provided in the fixed outer cylinder (3) so as to be movable along the axial direction and the top end of the adjusting inner cylinder (4) is in communication with the feed end (11). The outer wall of the adjusting inner cylinder (4) contacts the inner wall of the fixed outer cylinder (3). An adjusting filter hole (42) aligned with the fixed filter hole (32) is provided on the adjusting inner cylinder (4). The fixed filter hole (32) and the adjusting filter hole (42) are combined to form a combination of filter holes of different sizes by staggering the two. A piston head (6) is provided in the filter tube (1) at a position corresponding to the top end of the regulating inner cylinder (4) and is in contact with the inner wall of the filter tube (1). The piston head (6) is connected to the top end of the regulating inner cylinder (4) via a connecting rod (5). The top end of the filter tube (1) is rotatably connected to an adjusting bolt (7) threadedly connected to the top end of the piston head (6) for driving the piston head (6) to move.

2. The petrochemical pipeline filter with adjustable filtration accuracy according to claim 1 is characterized in that: The top of the regulating inner cylinder (4) is parallel to the top of the fixed outer cylinder (3), and the lowest point of the top of the regulating inner cylinder (4) is kept below the level of the feed end (11) to ensure that the material enters through the top of the regulating inner cylinder (4).

3. The petrochemical pipeline filter with adjustable filtration accuracy according to claim 2, characterized in that: The highest point of the top of the fixed outer cylinder (3) is maintained above the level of the discharge end (12) to ensure that the material must pass through the adjustable filter hole (42) and the fixed filter hole (32).

4. The petrochemical pipeline filter with adjustable filtration accuracy according to claim 3 is characterized in that: The top end of the regulating inner cylinder (4) has a sealing flange (41) in contact with the inner wall of the filter tube (1).

5. The petrochemical pipeline filter with adjustable filtration accuracy according to claim 4 is characterized in that: The inner wall of the filter tube (1) is longitudinally slidably connected to a limit plate (8) fixedly connected to the connecting rod (5).

6. The petrochemical pipeline filter with adjustable filtration accuracy according to claim 5, characterized in that: A total of four connecting rods (5) are provided and distributed in a ring array at the top end of the sealing flange (41).

7. The petrochemical pipeline filter with adjustable filtration accuracy according to claim 6, characterized in that: A rubber sleeve (61) is mounted at the waist of the piston head (6) and is tightly pressed against the inner wall of the filter tube (1).

8. The petrochemical pipeline filter with adjustable filtration accuracy according to claim 7, characterized in that: The top end of the filter tube (1) is screwed with an upper end cover (13) that is rotatably connected to the adjusting bolt (7), and the bottom end of the upper end cover (13) is sheathed with a sealing ring (131) that contacts the top opening of the filter tube (1).

9. The petrochemical pipeline filter with adjustable filtration accuracy according to claim 8, characterized in that: The top surface of the upper end cover (13) is provided with a scale (132) surrounding the adjusting bolt (7) for marking the diameter of the combined filter hole, and the adjusting bolt (7) is provided with a pointer (71).

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