A filter assembly for petrochemical production

Abstract

A filter assembly for petrochemical production, belonging to the field of filter assembly technology, includes a filter box. An inlet connecting pipe and an outlet connecting pipe are respectively provided on the left and lower surfaces of the filter box. A maintenance port is provided on the right side of the filter box, and a sealing plate is detachably installed on the maintenance port. A sealing partition is rotatably and adjustablely installed on the filter box, dividing the inner cavity of the filter box into a filter chamber and a storage chamber. The outlet connecting pipe and the maintenance port are located on the left and right sides of the sealing partition, respectively. Alloy filter baskets can be detachably installed on both sides of the sealing partition. This invention, by setting a sealing partition that can be rotated 180° by an angle-adjustable motor and a rotating shaft inside the filter box, combined with detachable alloy filter baskets on both sides, achieves filter basket repositioning without stopping the machine, compared to the existing technology that requires stopping the machine to disassemble and clean the filter media. This effectively avoids production capacity loss caused by downtime.

Description

Technical Field

[0001] This utility model relates to the field of filter component technology, specifically to a filter component for petrochemical production. Background Technology

[0002] In petrochemical production, mechanical impurities and colloids in feedstocks, intermediates, and other media can easily lead to equipment scaling, catalyst poisoning, and even safety accidents. Therefore, filter components are key equipment for ensuring stable production. Currently, mainstream cartridge, bag, and plate-and-frame filter components all achieve separation through porous media interception.

[0003] However, existing filter components require periodic shutdowns for cleaning, which involves closing valves, disassembling the equipment, cleaning / replacing the media, and reassembling and testing before production can resume. This shutdown mode poses significant risks: petrochemical production is a continuous process, and a single shutdown for cleaning requires 0.5-4 hours, easily triggering a chain reaction of shutdowns in upstream and downstream operations, resulting in capacity losses. Furthermore, high-viscosity media tend to adhere after shutdown, further extending cleaning time and creating a vicious cycle, failing to meet the efficiency, safety, and cost requirements of modern petrochemicals. Therefore, the development of filter components that do not require shutdown for cleaning has become an urgent need. Utility Model Content

[0004] The purpose of this invention is to provide a filter assembly for petrochemical production to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A filter assembly for petrochemical production includes a filter box. An inlet connecting pipe and an outlet connecting pipe are respectively provided on the left side and the lower surface of the filter box. A maintenance port is provided on the right side of the filter box. A sealing plate is detachably installed on the maintenance port. A sealing partition is rotatably and adjustablely installed on the filter box. The sealing partition divides the inner cavity of the filter box into a filter chamber and a storage chamber. The outlet connecting pipe and the maintenance port are located on the left and right sides of the sealing partition, respectively. Alloy filter baskets can be detachably installed on both sides of the sealing partition. The alloy filter basket is positioned lower than the inlet connecting pipe, and the outer surface of the alloy filter basket on the left side is in contact with the inner surface of the filter box.

[0006] Preferably, the top of the filter box is provided with an opening, and a lifting plate is fixedly installed at the opening by bolts. A sealing gasket is installed between the lifting plate and the filter box, and a rotating shaft is rotatably installed through the lower surface of the lifting plate. The bottom end of the rotating shaft is fixedly connected to the central axis of the upper surface of the sealing partition. An angle adjustment motor is fixedly installed on the upper surface of the lifting plate, and the output end of the angle adjustment motor is fixedly connected to the top end of the rotating shaft.

[0007] Preferably, a wear-resistant sealing ring is embedded and fixedly installed on the outer surface of the sealing partition, and the outer surface of the wear-resistant sealing ring is in contact with the inner surface of the filter box.

[0008] Preferably, brackets are fixedly installed on both the left and right sides of the sealing partition, and at least three positioning holes are opened through the upper surface of each bracket. At least three positioning blocks are fixedly installed on the lower surface of each alloy filter basket, and the positioning blocks are inserted into the corresponding positioning holes.

[0009] Preferably, a pre-drain valve is fixedly installed on the lower surface of the filter box, and the pre-drain valve is located on the right side of the sealing partition.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention features a sealed partition inside the filter box that can rotate 180° using an angle-adjustable motor 1 and a rotating shaft 2. Combined with detachable alloy filter baskets on both sides, this invention achieves filter basket repositioning without shutting down the machine, compared to the existing technology that requires stopping the machine to disassemble and clean the filter media. This effectively avoids production capacity loss caused by downtime.

[0011] In addition, by setting a maintenance port with a sealing plate on the right side of the filter box and a pre-drain valve on the lower surface, it is convenient to remove the alloy filter basket to be cleaned and to pre-drain residual media, reducing pollution and waste, and meeting the needs of modern petrochemical production for efficiency, safety and cost control. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention.

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0014] Figure 3 This is a schematic diagram of the structure of the alloy filter basket of this utility model.

[0015] Figure 4 This is a schematic diagram of the sealing partition structure of this utility model.

[0016] In the diagram: 1. Filter box; 11. Inlet connecting pipe; 12. Outlet connecting pipe; 13. Maintenance port; 14. Sealing plate; 2. Lifting plate; 21. Angle adjustment motor; 22. Rotating shaft; 3. Sealing partition; 31. Bracket; 311. Positioning hole; 32. Wear-resistant sealing gasket; 4. Alloy filter basket; 41. Positioning block; 5. Pre-drain valve. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a technical solution: To achieve the above objectives, this utility model provides the following technical solution: A filter assembly for petrochemical production includes a filter box 1. An inlet connecting pipe 11 and an outlet connecting pipe 12 are respectively provided on the left side and lower surface of the filter box 1. A maintenance port 13 is provided on the right side of the filter box 1. A sealing plate 14 is detachably installed on the maintenance port 13. A sealing partition 3 is rotatably and adjustablely installed on the filter box 1. The sealing partition 3 divides the inner cavity of the filter box 1 into a filter chamber and a storage chamber. The outlet connecting pipe 12 and the maintenance port 13 are located on the left and right sides of the sealing partition 3, respectively. Alloy filter baskets 4 are detachably installed on both the left and right sides of the sealing partition 3. The alloy filter baskets 4 are positioned lower than the inlet connecting pipe 11, and the outer surface of the left alloy filter basket 4 is in contact with the inner surface of the filter box 1.

[0019] The sealing plate 14 is fixedly installed at the maintenance port 13 by bolts, and the sealing plate 15 is clamped and fixedly installed with a sealing gasket at the outer edge of the maintenance port 13.

[0020] It should be noted that, in combination Figure 4 and Figure 2 As shown, the top of the filter box 1 has an opening, and a lifting plate 2 is fixedly installed at the opening by bolts. A sealing gasket is installed between the lifting plate 2 and the filter box 1. The sealing gasket is used to seal the filter box 1 during operation. A rotating shaft 22 is rotatably installed through the lower surface of the lifting plate 2. The bottom end of the rotating shaft 22 is fixedly connected to the central axis of the upper surface of the sealing partition 3. The rotating shaft 22 rotates the sealing partition 3 into the filter box 1. An angle adjustment motor 21 is fixedly installed on the upper surface of the lifting plate 2. The output end of the angle adjustment motor 21 is fixedly connected to the top end of the rotating shaft 22.

[0021] When the angle adjustment motor 21 is connected to an external power supply and an external controller, it can drive the sealing partition 3 to rotate 180 degrees via the rotating shaft 22, thereby swapping the positions of the two alloy filter baskets 4 in the filter chamber and the storage chamber. The alloy filter basket 4 that needs to be cleaned can then be adjusted into the storage chamber. At this time, after removing the sealing plate 14, the alloy filter basket 4 to be cleaned can be removed and cleaned. During the repositioning process, the equipment does not need to be stopped, avoiding adverse situations caused by shutdown, effectively maintaining production efficiency, and meeting the needs of modern petrochemicals for efficiency, safety, and cost.

[0022] In addition, to ensure the sealing effect of the sealing plate 3, a wear-resistant sealing ring 32 needs to be embedded and fixedly installed on the outer surface of the sealing plate 3, and the outer surface of the wear-resistant sealing ring 32 is in contact with the inner surface of the filter box 1.

[0023] The wear-resistant sealing ring 32 is made of nitrile rubber or fluororubber. This type of material not only has excellent elasticity and resilience, which can tightly fill the tiny gaps between the sealing plate 3 and the inner wall of the filter box 1, but also has excellent oil resistance, aging resistance and wear resistance. It is suitable for complex working conditions in petrochemical production where the filtration media are mostly oils and corrosive gases, and effectively avoids the sealing failure problem caused by wear or aging of the sealing ring after long-term use.

[0024] In addition, combined Figure 2 , Figure 3 and Figure 4 As shown, brackets 31 are welded and installed on both the left and right sides of the sealing partition 3. At least three positioning holes 311 are opened through the upper surface of each bracket 31. At least three positioning blocks 41 are fixedly installed on the lower surface of each alloy filter basket 4. The positioning blocks 41 are inserted into the corresponding positioning holes 311. Through the cooperation of the positioning blocks 41 and the positioning holes 311, the alloy filter basket 4 can be quickly positioned and fixed, avoiding the alloy filter basket 4 from shifting due to vibration during equipment operation, and ensuring that the filter medium can flow stably through the inside of the filter basket.

[0025] Finally, considering that when the left and right alloy filter baskets 4 are switched, some raw oil will enter the storage chamber, in order to facilitate the cleaning of this raw oil, combined with Figure 2 As shown, a pre-drain valve 5 needs to be fixedly installed on the lower surface of the filter box 1, and the pre-drain valve 5 is located on the right side of the sealing partition 3. When the maintenance port 13 is opened, the pre-drain valve 5 can be opened in advance to pre-drain this part of the raw material oil, so as to facilitate cleaning and removal of the alloy filter basket 4 to be cleaned on the right side.

[0026] Working principle: When cleaning impurities inside the alloy filter basket 4, first confirm the initial state (the sealing partition 3 separates the filter box 1 into a filter chamber and a storage chamber, the left alloy filter basket 4 is working and the right side is idle, the raw oil enters the filter chamber through the inlet connecting pipe 11 and is filtered and then discharged from the outlet connecting pipe 12). When the left alloy filter basket 4 needs to be cleaned, first open the pre-drain valve 5 on the right side of the sealing partition 3 on the lower surface of the filter box 1 to discharge the residual raw oil in the storage chamber; then start the angle adjustment motor 21 on the hoisting plate 2, which drives the sealing partition 3 to rotate through the rotating shaft 22. Rotate 180° to swap the position of the alloy filter basket 4 to be cleaned with the idle one (the wear-resistant sealing ring 32 ensures a seal during the swap, and the equipment does not stop); then remove the sealing plate 14 at the maintenance port 13, and take out the alloy filter basket 4 to be cleaned from the right storage chamber, which is fixed by the positioning block 41 and the positioning hole 311 of the bracket 31 (the newly swapped alloy filter basket 4 on the left continues to work); after cleaning, reset it by the positioning block 41 and the positioning hole 311, reinstall the sealing plate 14 and close the pre-drain valve 5 to complete one cleaning cycle.

Claims

1. A filter assembly for petrochemical production, comprising a filter box (1), the left side and the lower surface of the filter box (1) are respectively provided with an inlet connecting pipe (11) and an outlet connecting pipe (12), characterized in that, The filter box (1) is provided with a maintenance port (13) on the right side. The maintenance port (13) is detachably equipped with a sealing plate (14). The filter box (1) is rotatably equipped with a sealing partition (3). The sealing partition (3) divides the inner cavity of the filter box (1) into a filter cavity and a storage cavity. The outlet connecting pipe (12) and the maintenance port (13) are located on the left and right sides of the sealing partition (3), respectively. Alloy filter baskets (4) can be detachably installed on both the left and right sides of the sealing partition (3). The alloy filter basket (4) is positioned lower than the inlet connecting pipe (11), and the outer surface of the alloy filter basket (4) on the left side is in contact with the inner surface of the filter box (1).

2. A filtration assembly for petrochemical production as claimed in claim 1, wherein: The top of the filter box (1) is provided with an opening, and a lifting plate (2) is fixedly installed at the opening by bolts. A sealing gasket is installed between the lifting plate (2) and the filter box (1), and a rotating shaft (22) is rotatably installed through the lower surface of the lifting plate (2). The bottom end of the rotating shaft (22) is fixedly connected to the central axis of the upper surface of the sealing partition (3). An angle adjustment motor (21) is fixedly installed on the upper surface of the lifting plate (2), and the output end of the angle adjustment motor (21) is fixedly connected to the top end of the rotating shaft (22).

3. A filter assembly for petrochemical production according to claim 1 or 2, characterized in that: A wear-resistant sealing ring (32) is embedded and fixedly installed on the outer surface of the sealing partition (3), and the outer surface of the wear-resistant sealing ring (32) is in contact with the inner surface of the filter box (1).

4. A filtration assembly for petrochemical production as claimed in claim 3, wherein: The sealing partition (3) is fixedly installed with brackets (31) on both the left and right sides. The upper surface of the brackets (31) is provided with at least three positioning holes (311). The lower surface of the alloy filter basket (4) is fixedly installed with at least three positioning blocks (41). The positioning blocks (41) are inserted into the corresponding positioning holes (311).

5. A filtration assembly for petrochemical production as claimed in claim 1, wherein: A pre-drain valve (5) is fixedly installed on the lower surface of the filter box (1), and the pre-drain valve (5) is located on the right side of the sealing partition (3).

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