Filter element extractor and method for methanol recovery device

Abstract

The invention belongs to the technical field of natural gas treatment methanol recovery device fine filters, and particularly discloses a methanol recovery device filter element extractor and a methanol recovery device filter element extractor method. Comprising 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 of the lever, a fixing structure is arranged at the position of the fixing hole and used for being fixed to the cylinder wall of the methanol recovery device, and a taking-out structure is arranged at the position of the transposition holes and comprises a buckle taking-out assembly; a third through hole is formed in the lower portion of the cavity, a buckle taking-out ring is fixedly arranged in the third through hole, and the buckle taking-out ring is a wafer provided with a groove in the radial direction. The filter element nut is clamped through the cavity, the filter element screw rod is clamped through the groove in the buckle taking-out ring, so that the filter element is fixed, the fixing structure plays a role of a fulcrum, the filter element is lifted and replaced through the lever, the filter element is not collided in the using process, and it is guaranteed that the filter element is taken out completely.

Description

Technical Field

[0001] The invention belongs to the technical field of fine filters for a methanol recovery device for natural gas processing, and in particular relates to a filter core remover and a method for a methanol recovery device. Background Art

[0002] Fine filters are also called precision filters, which can play a filtering and protective role in the alcohol-containing sewage treatment system. The filtering principle is that the liquid to be filtered is pressed into the filter inlet, filtered from the outside to the inside through the filter element through the filter layer to become a clean liquid, and then flows out through the outlet. Impurities and dirt in the sewage are trapped in the deep layer and surface of the filter element, so that the alcohol-containing water can be filtered. The size, structure and number of filter elements depend on the design flow rate and the medium characteristics of the filtered liquid. It consists of two parts: a filter and a filter element. In normal use, when there are more impurities and dirt in alcohol water, the filter element is blocked, and the mud and solid impurities are stuck with the stainless steel filter mesh inside the fine filter, making it difficult to remove. During maintenance, general tools such as hammers, crowbars, and wires are used to remove and replace the filter element. When general tools are used manually to remove the filter element, it takes a long time, requires more people, and has high labor costs, which affects the normal operation of the device. When general tools are used to remove the filter element, the stainless steel filter mesh inside the fine filter and the filter element fastening bolts and nuts are damaged. If the person uses too much force, it may slip and cause personal injury. In view of the above problems, a fine filter element remover for a natural gas processing methanol recovery device is designed. Through searching the patent website, 368 related patent removal tools were found, among which the fixed crossbeam filter element remover (patent number CN201354937U) is heavy and complicated to operate; the articulated filter element remover (patent number CN216913678U) has a cumbersome manufacturing process and requires multiple people to operate; the swing hammer filter element remover (patent number CN21521842U) is difficult to grasp the centering position and the removal torque is difficult to control, which can easily cause damage to the filter element. None of the above filter element removal tools can solve the problem of difficulty in removing the filter element. Through on-site inspection and measurement, it was determined to produce a lever-type filter element remover suitable for on-site operation that can safely and quickly remove the filter element. Summary of the invention

[0003] The purpose of the present invention is to provide a methanol recovery device filter element remover to solve the technical problem that the filter element of the existing natural gas processing methanol recovery device is difficult to remove and easily damaged during inspection and maintenance due to the produced water containing a large amount of sediment and other impurities.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] In a first aspect, the present invention provides a filter element remover for a methanol recovery device, comprising a lever, a fixing hole is provided on a side wall at one end of the lever, a plurality of transposition holes are provided on a middle side wall of the lever along the axial direction, a fixing structure is provided at the fixing hole, the fixing structure is used to be fixed to the cylinder wall of the methanol recovery device, a removal structure is provided at any one of the transposition holes, the removal structure comprises a snap removal assembly, a cavity is provided at the middle part of the snap removal assembly along the tangent direction of the cylinder wall of the methanol recovery device, a third through hole is provided below the cavity, a snap removal ring is fixedly provided in the third through hole, and the snap removal ring is a disc with a groove provided along the radial direction.

[0006] A further improvement of the present invention is that the fixing structure includes a first U-shaped card, a first adjusting screw and a fixed-end U-shaped card, first through holes are opened on both side walls of the first U-shaped card, a first threaded hole is opened at the bottom of the first U-shaped card, the first U-shaped card is clamped on both sides of the fixing hole to align the first through hole with the fixing hole, the first through hole and the fixing 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 card.

[0007] A further improvement of the present invention is that a non-slip rubber is provided inside the fixed end U-shaped card.

[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 shape of the fixed end U-shaped clamp is U-shaped, the side wall of the fixed end U-shaped clamp 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 removal structure also includes a second U-shaped card and a second adjusting screw, second through holes with the same aperture as the transposition hole are provided on the two side walls of the second U-shaped card, a second threaded hole is provided at the bottom of the second U-shaped card, the second U-shaped card is clamped on both sides of the transposition hole to align the second through hole with the transposition hole, the second through hole and the transposition hole are fixedly connected by a second transposition pin, the second threaded hole is threadedly connected to the top of the second adjusting screw, and the bottom of the second adjusting screw is fixedly connected to the buckle removal 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 buckle 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 one 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 patterns.

[0014] In a second aspect, a method for removing a filter element of a methanol recovery device comprises the following steps:

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

[0016] The fixing structure is fixed to the cylinder wall of the methanol recovery device, and the snap removal assembly is sleeved on the outside of the filter element fixing nut, so that the snap removal ring clamps the filter element fixing screw, and then the filter element is removed by lifting the end of the lever away from the fixing hole.

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

[0018] 1. The present invention clamps the filter element nut through the cavity, and clamps the filter element screw through the groove in the snap-on removal ring, thereby fixing the filter element. The fixing structure acts as a fulcrum, and the filter element is lifted and replaced by a lever. During use, the filter element is not bumped, ensuring that the filter element is removed intact;

[0019] 2. The present invention can be used for different types of methanol recovery devices by setting a plurality of transposition holes, and has good versatility;

[0020] 3. The present invention sets the side wall of the fixed end U-shaped card into an arc surface, which is convenient for fitting with the cylinder wall and improves the fixing effect;

[0021] 4. The present invention prevents slipping by arranging anti-skid tape inside the fixed end U-shaped card, thereby improving the stability of the removal process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] In the attached picture:

[0024] Figure 1 This is a schematic diagram of the overall structure of a filter element remover of a methanol recovery device of the present invention;

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

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

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

[0028] Figure 5 It is a structural schematic diagram of a fixed-end U-shaped clamp in a filter element extractor of a methanol recovery device of the present invention;

[0029] Figure 6 A top view of a fixed-end U-shaped clamp in a filter element extractor of a methanol recovery device of the present invention;

[0030] Figure 7 It is a schematic diagram of a removal structure in a filter element remover of a methanol recovery device of the present invention;

[0031] Figure 8 It is a structural schematic diagram of a buckle removal ring in a filter element remover of a methanol recovery device of the present invention;

[0032] Fig. 9 It is a schematic diagram of the operation of a transposition pin in a filter element extractor of a methanol recovery device of the present invention;

[0033] In the figure: 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 transposition pin; 62. second transposition pin; 7. buckle removal assembly; 8. anti-slip rubber; 9. welding nut; 10. connecting nut; 11. buckle removal ring; 12. transposition 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 DESCRIPTION

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0035] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention.

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

[0037] In the description of the present invention, 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 the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "assembly", "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example 1

[0040] A filter element extractor for a methanol recovery device, such as Figures 1-2 As shown, it includes a lever 1, a fixing hole 13 is provided on the side wall at one end of the lever 1, the other end of the lever 1 is fixedly connected to a handle 14, a plurality of transposition 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, the fixing structure is used to be fixed to the cylinder wall of the methanol recovery device, the transposition hole 12 is used to be fixedly connected to the removal structure, and the removal structure is arranged on different transposition holes 12 according to the position of the filter element in the methanol recovery device;

[0041] Specifically, Figure 3 As shown, the diameter of the rod body of the lever 1 with the fixing hole 13 or the transposition hole 12 is smaller than the diameter of the rod body without the fixing hole 13 or the transposition hole 12.

[0042] Specifically, the lever 1 and the handle 14 can be disconnected and fixedly connected by means of threaded connection or riveting, and a force rod can be added between the lever 1 and the handle 14 to increase the torque for easy removal;

[0043] Specifically, the handle 14 is provided with anti-skid patterns to increase friction and facilitate use.

[0044] Specifically, 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 shown in FIG. Figure 5As shown, the first U-shaped card 51 is a U-shaped structure, and a first through hole 17 with the same aperture as the fixing hole 13 is opened on both side walls, and a first threaded hole 15 is opened at the bottom of the first U-shaped card 51. The first U-shaped card 51 is clamped on both sides of the fixing hole 13 so that the first through hole 17 is aligned with the fixing hole 13. A first shift pin 61 is arranged in the first through hole 17 and the fixing hole 13, and the lever 1 is fixedly connected to the first U-shaped card 51 through the first shift pin 61. A first adjusting screw 31 is vertically arranged below the first U-shaped card 51, and the top of the first adjusting screw 31 cooperates with the first threaded hole 15. A first locking nut 41 is arranged below the first threaded hole 15, and 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 card 2, and a first nut 9 is arranged above the fixed tube U-shaped card 2, and the first nut 9 is sleeved on the outside of the first adjusting screw 31;

[0045] Specifically, Figure 6 As shown, the side wall of the fixed end U-shaped clamp 2 is an arc-shaped surface, and the curvature of the arc-shaped surface is the same as the curvature of the cylinder wall of the methanol recovery device, thereby improving the fit and preventing the fixed structure from slipping out of the cylinder wall.

[0046] Specifically, an anti-skid rubber 8 is provided inside the first U-shaped card 51. When working, the first U-shaped card 51 is clamped on the cylinder wall of the methanol recovery device to play a fixing role. By arranging the anti-skid rubber 8 inside the first U-shaped card 51, the anti-skid rubber 8 is sandwiched between the first U-shaped card and the cylinder wall, which plays an anti-skid role.

[0047] Specifically, Figure 7 and 9 As shown, the removal structure includes a second U-shaped card 52, a second locking nut 42, a second adjusting screw 32, a second nut 10 and a buckle removal assembly 7. The second U-shaped card 52 is a U-shaped structure. Second through holes 18 with the same aperture as the transposition hole 12 are opened on the two side walls. A second threaded hole 16 is opened at the bottom of the second U-shaped card 52. The second U-shaped card 52 is clamped on both sides of the transposition hole 12 so that the second through hole 18 is aligned with the transposition hole 12. A second transposition pin 62 is provided in the second through hole 18 and the transposition hole 12. The shift pin 62 fixes the lever 1 to the second U-shaped clip 52, a second adjusting screw 32 is vertically arranged below the second U-shaped clip 52, the top of the second adjusting screw 32 cooperates with the second threaded hole 16, a second locking nut 42 is arranged 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 buckle removal assembly 7, a second nut 10 is arranged above the buckle removal assembly 7, and the second nut 10 is sleeved on the outside of the second adjusting screw 32;

[0048] A cavity 19 is opened in the middle of the snap removal assembly 7 along the tangent direction of the cylinder wall of the methanol recovery device, and a third through hole is opened 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 buckle removal ring 11 is fixedly provided in the third through hole. Figure 8 As shown, the snap-on removal ring 11 is a disc with a groove opened in the radial direction, and the width of the groove is slightly larger than the diameter of the filter element 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 depth of the groove of the snap-on removal 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, comprises the following steps:

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

[0055] By fixing it to the cylinder wall of the methanol recovery device through a fixing structure, the snap removal assembly 7 is sleeved on the outside of the filter element fixing nut, so that the snap removal ring 11 clamps the filter element fixing screw and fixes it by utilizing the diameter difference between the filter element fixing nut and the filter element, and then the handle 14 is lifted to remove the filter element, thereby effectively improving the removal efficiency and, at the same time, saving working hours and personnel, and greatly reducing the operating risks of the operators; by providing a plurality of transposition holes 12 in the middle part of the lever 1, the upper part of the removal end is connected to the second U-shaped card 52 which is connected to the transposition hole 12 through the transposition pin 6, so that it is convenient to fix the second U-shaped card 52 in different transposition holes 12 according to the need of removing the filter element position, thereby effectively improving the application range of the entire removal equipment.

[0056] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does 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 element remover for a methanol recovery device, characterized in that: The invention comprises a lever (1), a fixing hole (13) is provided on the side wall at one end of the lever (1), a plurality of transposition holes (12) are provided on the middle side wall of the lever (1) along the axial direction, a fixing structure is provided at the fixing hole (13), the fixing structure is used to be fixed to the cylinder wall of the methanol recovery device, any one of the transposition holes (12) is provided with a removal structure, the removal structure comprises a snap removal assembly (7), a cavity (19) is provided at the middle of the snap removal 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 removal ring (11) is fixedly provided in the third through hole, and the snap removal ring (11) is a disc with a groove provided along the radial direction.

2. A filter element extractor for a methanol recovery device according to claim 1, characterized in that: The fixing structure comprises a first U-shaped clip (51), a first adjusting screw (31) and a fixed end U-shaped clip (2); first through holes (17) are provided on both side walls of the first U-shaped clip (51); a first threaded hole (15) is provided on the bottom of the first U-shaped clip (51); the first U-shaped clip (51) is clamped on both sides of the fixing hole (13) so that the first through hole (17) is aligned with the fixing hole (13); the first through hole (17) and the fixing 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); and 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).

3. A filter element extractor for a methanol recovery device according to claim 2, characterized in that: The fixed end U-shaped clip (2) is provided with an anti-slip rubber (8).

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

5. The filter element extractor of a methanol recovery device according to claim 2, characterized in that: The fixed end U-shaped card (2) is in a U-shape, and the side wall of the fixed end U-shaped card (2) is an arc-shaped surface, and the curvature of the arc-shaped surface is the same as the curvature of the cylinder wall of the methanol recovery device.

6. The filter element extractor of a methanol recovery device according to claim 1, characterized in that: The removal structure further comprises a second U-shaped clip (52) and a second adjusting screw (32); second through holes (18) having the same aperture as the transposition hole (12) are provided on the two side walls of the second U-shaped clip (52); a second threaded hole (16) is provided at the bottom of the second U-shaped clip (52); the second U-shaped clip (52) is clamped on both sides of the transposition hole (12) so that the second through hole (18) is aligned with the transposition hole (12); the second through hole (18) and the transposition hole (12) are fixedly connected by a second transposition pin (62); the second threaded hole (16) is threadedly connected to the top of the second adjusting screw (32); and the bottom of the second adjusting screw (32) is fixedly connected to the buckle removal assembly (7).

7. A filter element extractor for a methanol recovery device according to claim 6, characterized in that: A second locking nut (42) is provided at the bottom of the second U-shaped clip (52), and the second locking nut (42) is threadedly connected to the second adjusting screw (32). A second nut (10) is provided at the top of the clip removal assembly (7), and the second nut (10) is threadedly connected to the second adjusting screw (32).

8. The filter element extractor of a methanol recovery device according to claim 1, characterized in that: A handle (14) is provided at one end of the lever (1) away from the fixing hole.

9. A filter element extractor for a methanol recovery device according to claim 8, characterized in that: The handle (14) is provided with anti-slip patterns.

10. A method for removing a filter element from a methanol recovery device, characterized in that: The following steps are involved: A removal structure is provided on the transposition hole (12) according to the position of the filter element to be removed in the methanol recovery device; The fixing structure is fixed to the cylinder wall of the methanol recovery device, and the snap removal assembly (7) is sleeved on the outside of the filter element fixing nut, so that the snap removal ring (11) is clamped on the filter element fixing screw, and then the lever (1) is lifted away from the end of the fixing hole (13) to remove the filter element.

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