A methanol recovery device filter cartridge extractor and method

Abstract

The application belongs to the technical field of fine filter of natural gas treatment methanol recovery device, and particularly discloses a filter core extractor and method for methanol recovery device. The filter core extractor comprises a lever, a fixing hole is formed in the side wall of one end of the lever, a plurality of transposition holes are formed in the side wall of the middle part of the lever, a fixing structure is arranged at the fixing hole and used for fixing with the cylinder wall of the methanol recovery device, and a taking-out structure is arranged at the transposition hole. The taking-out structure comprises a buckle taking-out assembly, a cavity is formed in the middle part of the buckle taking-out assembly, a third through hole is formed below the cavity, a buckle taking-out ring is fixedly arranged in the third through hole, and the buckle taking-out ring is a circular sheet with a groove formed along the radial direction. The filter core screw cap is clamped by the cavity, the filter core screw rod is clamped by the groove in the buckle taking-out ring, so that the filter core is fixed, the fixing structure plays the role of fulcrum, the filter core is lifted and replaced by the lever, the filter core is not bumped during use, and the integrity of the filter core is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fine filter of natural gas treatment methanol recovery device, and particularly relates to a filter core extractor and method of methanol recovery device. BACKGROUND

[0002] The fine filter is also called precision filter, and can play a filtering protection role on the alcohol-containing sewage treatment system. The filtering principle is that the liquid to be filtered is pressed into the filter inlet, penetrates through the filter layer from the outside to the inside of the filter core to form clean liquid, and then flows out through the outlet. The impurities and dirt in the sewage are intercepted in the deep layer and surface of the filter core, so that the alcohol-containing water achieves the filtering purpose. The size, structure of the filter and the size and number of the filter core depend on the design flow, medium characteristics of the filtered liquid. The fine filter is composed of two parts: the filter and the filter core. When the filter core is blocked due to a large amount of impurities and dirt in the alcohol-containing water, and the mud and solid impurities are stuck with the stainless steel filter screen inside the fine filter, it is difficult to take out. During maintenance, the filter core is taken out and replaced by using a hand hammer, crowbar, iron wire and other general tools. When the filter core is taken out by using the general tools manually, it takes a long time, a large number of personnel are needed, the labor cost is high, and the normal operation of the device is affected. When the filter core is taken out by using the general tools, the stainless steel filter screen inside the fine filter, the filter core fastening bolt and the nut are damaged. If the personnel use excessive force, the personnel may be injured due to slipping. In view of the above problems, a fine filter filter core extractor for natural gas treatment methanol recovery device is designed. Through patent network retrieval, 368 related patent extraction tools are obtained. Among them, the fixed beam type filter core extractor (patent number CN201354937U) is heavy in quality and complex in operation. The articulated type filter core extractor (patent number CN216913678U) is complicated in manufacturing process and needs to be operated by multiple people. The hammer type filter core extractor (patent number CN21521842U) is not easy to grasp the center position, and the extraction torque is difficult to control, which may cause damage to the filter core. The above filter core extraction tools cannot solve the difficulty in taking out the filter core. Through on-site investigation and measurement, a lever type filter core extractor suitable for on-site operation and capable of safely and quickly taking out the filter core is manufactured. SUMMARY

[0003] The purpose of the present application is to provide a filter core extractor for methanol recovery device, which solves the technical problems that the filter core of the existing natural gas treatment methanol recovery device is difficult to take out and easy to damage during maintenance due to the large amount of mud and other impurities in the produced water.

[0004] To achieve the above purpose, the technical scheme is adopted as follows:

[0005] In a first aspect, the present invention provides a filter element remover for a methanol recovery device, comprising a lever, a fixing hole being provided on the side wall of one end of the lever, and a plurality of displacement holes being provided axially on the side wall of the middle portion of the lever, a fixing structure being provided at the fixing hole, the fixing structure being used to fix to the cylinder wall of the methanol recovery device, and a removal structure being provided at any one of the displacement holes, the removal structure comprising a snap-out removal assembly, a cavity being provided in the middle portion of the snap-out removal assembly along the tangential direction of the cylinder wall of the methanol recovery device, a third through hole being provided below the cavity, and a snap-out removal ring being fixedly provided in the third through hole, the snap-out removal ring being a circular piece with a groove formed radially.

[0006] A further improvement of the present invention is that the fixing structure includes a first U-shaped clip, a first adjusting screw, and a fixed end U-shaped clip. The first U-shaped clip has a first through hole on both sides of its side walls and a first threaded hole at its bottom. The first U-shaped clip is engaged with both sides of the fixed hole, aligning the first through hole with the fixed hole. The first through hole and the fixed hole are fixedly connected by a first shift pin. The first threaded hole is threadedly connected to the top of the first adjusting screw, and the bottom of the first adjusting screw is fixedly connected to the outer wall of the closed end of the fixed end U-shaped clip.

[0007] A further improvement of the present invention is that the U-shaped card at the fixed end is provided with anti-slip rubber.

[0008] A further improvement of the present invention is that: a first locking nut is provided at the bottom of the first U-shaped card, the first locking nut is threadedly connected to the first adjusting screw, and a first nut is provided at the top of the fixed end U-shaped card, the first nut is threadedly connected to the first adjusting screw.

[0009] A further improvement of the present invention is that: the fixed end U-shaped card is U-shaped, the side wall of the fixed end U-shaped card is an arc surface, and the curvature of the arc surface is the same as the curvature of the cylinder wall of the methanol recovery device.

[0010] A further improvement of the present invention is that the extraction structure further includes a second U-shaped clip and a second adjusting screw. The second U-shaped clip has a second through hole with the same diameter as the shift hole on both sides of its side walls. The second U-shaped clip has a second threaded hole at its bottom. The second U-shaped clip is engaged with both sides of the shift hole, so that the second through hole is aligned with the shift hole. The second through hole and the shift hole are fixedly connected by a second shift pin. The second threaded hole is threadedly connected to the top of the second adjusting screw. The bottom of the second adjusting screw is fixedly connected to the clip extraction assembly.

[0011] A further improvement of the present invention is that: a second locking nut is provided at the bottom of the second U-shaped clip, the second locking nut is threadedly connected to the second adjusting screw, and a second nut is provided at the top of the clip removal assembly, the second nut is threadedly connected to the second adjusting screw.

[0012] A further improvement of the present invention is that a handle is provided at the end of the lever away from the fixing hole.

[0013] A further improvement of the present invention is that the handle is provided with anti-slip texture.

[0014] Secondly, a method for removing the filter element of a methanol recovery device includes the following steps:

[0015] A removal structure is set on the transposition hole according to the position of the filter element to be removed in the methanol recovery device;

[0016] By fixing the fixed structure to the cylinder wall of the methanol recovery device, the snap-out assembly is placed on the outside of the filter element fixing nut, so that the snap-out ring locks the filter element fixing screw. Then, the end of the lever away from the fixing hole is lifted to remove the filter element.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] 1. This invention uses a cavity to hold the filter element nut in place and a groove in the snap-out ring to hold the filter element screw, thus fixing it to the filter element. The fixing structure acts as a fulcrum, and the filter element can be lifted and replaced using a lever. There is no impact to the filter element during use, ensuring the integrity of the filter element when it is removed.

[0019] 2. This invention can be used in different types of methanol recovery devices by setting several interchange holes, and has good versatility;

[0020] 3. The present invention improves the fixing effect by making the side wall of the U-shaped clip at the fixed end arc-shaped, which facilitates its fit with the cylinder wall;

[0021] 4. This invention improves the stability of the removal process by setting anti-slip tape inside the U-shaped card at the fixed end to prevent slippage. Attached Figure Description

[0022] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the overall structure of a filter element extractor for a methanol recovery device according to the present invention.

[0025] Figure 2 This is a side view of the lever in the filter element remover of a methanol recovery device according to the present invention;

[0026] Figure 3 This is a top view of the lever in the filter element remover of a methanol recovery device according to the present invention;

[0027] Figure 4 This is a schematic diagram of the fixing structure in the filter element remover of a methanol recovery device according to the present invention;

[0028] Figure 5 This is a schematic diagram of the fixed end U-shaped clip in the filter element remover of a methanol recovery device according to the present invention;

[0029] Figure 6 This is a top view of the U-shaped clip at the fixed end of the filter element remover in a methanol recovery device according to the present invention;

[0030] Figure 7 This is a schematic diagram of the extraction structure in the filter element extractor of a methanol recovery device according to the present invention;

[0031] Figure 8 This is a schematic diagram of the snap-on removal ring in the filter element remover of a methanol recovery device according to the present invention;

[0032] Figure 9 This is a schematic diagram of the operation of the transposition pin in the filter element extractor of a methanol recovery device according to the present invention.

[0033] In the diagram: 1. Lever; 2. Fixed-end U-shaped clip; 31. First adjusting screw; 32. Second adjusting screw; 41. First locking nut; 42. Second locking nut; 51. First U-shaped clip; 52. Second U-shaped clip; 61. First shifting pin; 62. Second shifting pin; 7. Clip removal assembly; 8. Anti-slip rubber; 9. Welding nut; 10. Connecting nut; 11. Clip removal ring; 12. Shifting hole; 13. Fixing hole; 14. Handle; 15. First threaded hole; 16. Second threaded hole; 17. First through hole; 18. Second through hole; 19. Cavity. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0035] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] In the description of this invention patent, it should be noted that the terms "upper end", "lower end", "front end", "middle part", etc., indicating positional relationships are based on the positional relationships shown in the drawings and are only for the convenience of describing this invention patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention patent.

[0038] In the description of this invention patent, it should also be noted that, unless otherwise explicitly specified and limited, the terms "assembly," "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention patent according to the specific circumstances.

[0039] Example 1

[0040] A filter cartridge remover for a methanol recovery device, such as Figures 1-2 As shown, the device includes a lever 1. A fixing hole 13 is provided on the side wall of one end of the lever 1. The other end of the lever 1 is fixedly connected to a handle 14. Several displacement holes 12 are provided axially on the side wall of the middle part of the lever 1. A fixing structure is provided at the fixing hole 13. The fixing structure is used to fix to the cylinder wall of the methanol recovery device. The displacement holes 12 are used to fix to the extraction structure. The extraction structure is set on different displacement holes 12 according to the position of the filter element in the methanol recovery device.

[0041] Specifically, such as Figure 3 As shown, the diameter of the lever 1 with a fixing hole 13 or a shifting hole 12 is smaller than the diameter of the lever 1 without a fixing hole 13 or a shifting hole 12.

[0042] Specifically, lever 1 and handle 14 can be disconnected and fixedly connected by means such as threaded connection or riveting. A force-adding rod can be added between lever 1 and handle 14 to increase torque and facilitate removal.

[0043] Specifically, the handle 14 has anti-slip textures to increase friction and make it easier to use.

[0044] Specifically, such as Figure 4 As shown, the fixing structure includes a first U-shaped clip 51, a first locking nut 41, a first adjusting screw 31, a first nut 9, and a fixed-end U-shaped clip 2, as follows. Figure 5As shown, the first U-shaped clip 51 has a U-shaped structure. First through holes 17 with the same diameter as the fixing hole 13 are opened on both side walls. First threaded holes 15 are opened at the bottom of the first U-shaped clip 51. The first U-shaped clip 51 is clipped on both sides of the fixing hole 13, so that the first through holes 17 are aligned with the fixing hole 13. First shift pins 61 are provided in the first through holes 17 and the fixing hole 13. The lever 1 and the first U-shaped clip 51 are fixedly connected by the first shift pins 61. A first adjusting screw 31 is vertically provided below the first U-shaped clip 51. The top of the first adjusting screw 31 is engaged with the first threaded hole 15. A first locking nut 41 is provided below the first threaded hole 15. The first locking nut 41 is sleeved on the outside of the first adjusting screw 31. The bottom of the first adjusting screw 31 is fixedly connected to the outer wall of the closed end of the fixed end U-shaped clip 2. A first nut 9 is provided above the fixed tube U-shaped clip 2. The first nut 9 is sleeved on the outside of the first adjusting screw 31.

[0045] Specifically, such as Figure 6 As shown, the side wall of the fixed end U-shaped card 2 is an arc-shaped surface. The curvature of the arc-shaped surface is the same as that of the cylinder wall of the methanol recovery device, which improves the fit and prevents the fixed structure from slipping off the cylinder wall.

[0046] Specifically, the first U-shaped card 51 is equipped with anti-slip rubber 8 inside. During operation, the first U-shaped card 51 is fixed to the cylinder wall of the methanol recovery device. By setting the anti-slip rubber 8 inside the first U-shaped card 51, the anti-slip rubber 8 is sandwiched between the first U-shaped card and the cylinder wall, which plays a role in preventing slippage.

[0047] Specifically, such as Figure 7 and 9 As shown, the extraction structure includes a second U-shaped clip 52, a second locking nut 42, a second adjusting screw 32, a second nut 10, and a clip extraction assembly 7. The second U-shaped clip 52 has a U-shaped structure, with second through holes 18 on both side walls having the same diameter as the shift hole 12. A second threaded hole 16 is provided at the bottom of the second U-shaped clip 52. The second U-shaped clip 52 is engaged with both sides of the shift hole 12, aligning the second through holes 18 with the shift hole 12. A second shift pin 62 is provided inside the second through hole 18 and the shift hole 12, allowing the second threaded hole 62 to be inserted. The shift pin 62 fixes the lever 1 to the second U-shaped clip 52. The second U-shaped clip 52 is vertically provided below the second adjusting screw 32. The top of the second adjusting screw 32 is engaged with the second threaded hole 16. The second locking nut 42 is provided below the second threaded hole 16. The second locking nut 42 is sleeved on the outside of the second adjusting screw 32. The bottom of the second adjusting screw 32 is fixedly connected to the snap-out assembly 7. The snap-out assembly 7 is provided above the second nut 10. The second nut 10 is sleeved on the outside of the second adjusting screw 32.

[0048] A cavity 19 is provided in the middle of the buckle removal assembly 7 along the tangential direction of the methanol recovery device cylinder wall. A third through hole is provided below the cavity 19. The diameter of the third through hole is larger than the diameter of the filter element fixing screw, and the size of the cavity 19 is larger than the filter element fixing nut.

[0049] Specifically, a snap-fit ​​removal ring 11 is fixedly installed inside the third through hole, such as... Figure 8 As shown, the snap-out ring 11 is a circular piece with a groove along the radial direction, and the width of the groove is slightly larger than the diameter of the filter core fixing screw.

[0050] Specifically, the fixed end U-shaped clip 2 and the first nut 9 are fixedly connected by welding or bonding, and the bayonet removal assembly 7 and the second nut 10 are fixedly connected by welding or bonding.

[0051] Specifically, the groove depth of the snap-out ring 11 is determined according to the position of the filter element fixing screw.

[0052] Example 2

[0053] A method for removing a filter element from a methanol recovery device, based on a filter element remover for a methanol recovery device in Example 1, includes the following steps:

[0054] According to the position of the filter element to be removed in the methanol recovery device, a removal structure is set on the appropriate replacement hole 12;

[0055] By fixing the fixed structure to the cylinder wall of the methanol recovery device, the snap-out assembly 7 is fitted onto the outside of the filter element fixing nut, so that the snap-out ring 11 locks the filter element fixing screw and is fixed by the difference in cross-sectional diameter between it and the filter element fixing nut. Then, the handle 14 is lifted to remove the filter element, which effectively improves the removal efficiency, saves time and manpower, and greatly reduces the operational risks for operators. By providing several shifting holes 12 in the middle of the lever 1, the upper part of the removal end is connected to the second U-shaped clip 52, which is connected to the shifting hole 12 through the shifting pin 6. This makes it easy to fix the second U-shaped clip 52 in different shifting holes 12 according to the required position of the filter element, thereby effectively improving the applicability of the entire removal equipment.

[0056] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A filter cartridge remover for a methanol recovery device, characterized in that, Includes a lever (1), a fixing hole (13) is provided on the side wall of one end of the lever (1), and a plurality of displacement holes (12) are provided on the side wall of the middle part of the lever (1) along the axial direction. A fixing structure is provided at the fixing hole (13), and the fixing structure is used to fix it to the cylinder wall of the methanol recovery device. A take-out structure is provided at any of the displacement holes (12). The take-out structure includes a snap-out assembly (7). A cavity (19) is provided in the middle part of the snap-out assembly (7) along the tangent direction of the cylinder wall of the methanol recovery device. A third through hole is provided below the cavity (19). A snap-out ring (11) is fixedly provided in the third through hole. The snap-out ring (11) is a circular piece with a groove in the radial direction. The fixing structure includes a first U-shaped clip (51), a first adjusting screw (31), and a fixed end U-shaped clip (2). The first U-shaped clip (51) has a first through hole (17) on both sides of its side walls and a first threaded hole (15) at its bottom. The first U-shaped clip (51) is clipped on both sides of the fixed hole (13) so that the first through hole (17) is aligned with the fixed hole (13). The first through hole (17) and the fixed hole (13) are fixedly connected by a first shift pin (61). The first threaded hole (15) is threadedly connected to the top of the first adjusting screw (31). The bottom of the first adjusting screw (31) is fixedly connected to the closed end outer wall of the fixed end U-shaped clip (2). The fixed end U-shaped card (2) is provided with anti-slip rubber (8); The fixed end U-shaped card (2) is U-shaped, and the side wall of the fixed end U-shaped card (2) is an arc surface. The arc of the arc surface is the same as the arc of the cylinder wall of the methanol recovery device.

2. The filter element extractor for a methanol recovery device according to claim 1, characterized in that, The first U-shaped clip (51) has a first locking nut (41) at the bottom, and the first locking nut (41) is threadedly connected to the first adjusting screw (31). The fixed end U-shaped clip (2) has a first nut (9) at the top, and the first nut (9) is threadedly connected to the first adjusting screw (31).

3. The filter element extractor for a methanol recovery device according to claim 1, characterized in that, The extraction structure also includes a second U-shaped clip (52) and a second adjusting screw (32). The second U-shaped clip (52) has a second through hole (18) with the same diameter as the shift hole (12) on both sides of its side walls. The second U-shaped clip (52) has a second threaded hole (16) at its bottom. The second U-shaped clip (52) is clipped on both sides of the shift hole (12) so that the second through hole (18) is aligned with the shift hole (12). The second through hole (18) and the shift hole (12) are fixedly connected by a second shift pin (62). The second threaded hole (16) is threadedly connected to the top of the second adjusting screw (32). The bottom of the second adjusting screw (32) is fixedly connected to the buckle extraction assembly (7).

4. A filter element extractor for a methanol recovery device according to claim 3, characterized in that, The second U-shaped clip (52) has a second locking nut (42) at the bottom, and the second locking nut (42) is threadedly connected to the second adjusting screw (32). The clip removal assembly (7) has a second nut (10) at the top, and the second nut (10) is threadedly connected to the second adjusting screw (32).

5. A filter cartridge extractor for a methanol recovery device according to claim 1, characterized in that, The lever (1) has a handle (14) at the end away from the fixing hole.

6. A filter cartridge extractor for a methanol recovery device according to claim 5, characterized in that, The handle (14) is provided with anti-slip texture.

7. A method for removing the filter element of a methanol recovery device, characterized in that, The methanol recovery device filter element extractor according to any one of claims 1-6 includes the following steps: According to the position of the filter element to be removed in the methanol recovery device, a removal structure is set on the transposition hole (12); By fixing the fixed structure to the cylinder wall of the methanol recovery device, the snap-out assembly (7) is put on the outside of the filter element fixing nut, so that the snap-out ring (11) locks the filter element fixing screw, and then the lever (1) is lifted away from the end away from the fixing hole (13) to remove the filter element.

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