A filter cartridge extraction device and a sand extractor extraction system

Abstract

The utility model relates to gas recovery equipment technical field especially relates to a filter core extraction device and a sand remover extraction system, filter core extraction device, including support plate and screw rod, the screw rod penetrates the support plate, the screw rod is equipped with the nut, the nut abuts on the support plate upper surface, the screw rod bottom is connected with the extraction tool, still include the drag hook, a plurality of drag hooks circumferential interval setting in the top of filter core, the extraction tool is used for suspending the drag hook. A plurality of drag hooks are circumferential interval setting in the top of filter core, so as to evenly distribute the stress point on the top of filter core, then through the extraction tool to suspend a plurality of drag hooks, ensure that the filter core stress is even in the extraction process, the filter core is not easy to damage, and the filter core is extracted through a plurality of drag hooks, and it is more stable when extracting, avoids the situation that the filter core connecting rod is stressed and falls off when the traditional filter core is extracted through the filter core connecting rod, and the filter core cannot be extracted.

Description

Technical Field

[0001] This utility model relates to the field of gas extraction equipment technology, and in particular to a filter cartridge extraction device and a sand remover extraction system. Background Technology

[0002] During shale gas extraction, fracturing is commonly used, resulting in a large amount of sand particles mixed in the produced gas. If these sand particles are not effectively treated, they increase the risk of pipe failure, affecting extraction efficiency and safety. Desanders effectively remove sand particles from the gas, preventing erosion and wear on pipelines and other equipment, and extending equipment lifespan. When the sand content in the desander exceeds its rated discharge capacity, the filter screen will become clogged, causing the gas well to malfunction. In this case, the desander needs to be disassembled and the filter screen cleaned.

[0003] When maintaining or cleaning the sand separator or its filter element, on-site workers often use levers, pry bars, or other tools to hook the crossbar at the top of the filter element and then pry it to loosen the filter element from the sand separator body, allowing them to remove the filter element. Because of the significant resistance between the filter element and the desander, this method of operation requires a large amount of manpower. Furthermore, the levers and pry bars are not connected to the filter element's crossbar, making them prone to loosening during prying and potentially causing safety accidents. Therefore, some desander filter element removal devices have been developed. For example, Chinese Patent CN220613853U discloses a filter element extraction device, including a fixed block with a lead screw on it. A nut is fitted onto the lead screw and positioned above the fixed block. A hook is attached to the lower end of the lead screw and is held on the filter element connecting rod. However, when the filter element is extracted by pulling the connecting rod with the hook, the connecting rod is prone to detaching from the filter element due to the single point of force application. Once the connecting rod detaches, the filter element cannot be extracted. Utility Model Content

[0004] The purpose of this utility model is to address the problem in the background art where filter cartridge extraction devices, when using a hook to pull the filter cartridge connecting rod to extract the filter cartridge, have a single point of force application, making it easy for the filter cartridge connecting rod to detach from the filter cartridge after being subjected to force. Once the filter cartridge connecting rod detaches, the filter cartridge cannot be extracted. This invention provides a filter cartridge extraction device and a sand remover extraction system.

[0005] In a first aspect, the present invention provides a filter cartridge extraction device, comprising a support plate and a lead screw, the lead screw passing through the support plate, a nut being sleeved on the lead screw, the nut abutting against the upper surface of the support plate, and an extraction tool being connected to the bottom of the lead screw;

[0006] It also includes hooks, a plurality of which are circumferentially spaced on the top of the filter element, and the extraction tool is used to suspend the hooks.

[0007] The filter cartridge extraction device of this application involves first installing multiple hooks on the top of the filter cartridge, then suspending the hooks using an extraction tool, and then rotating the nut on the screw. The screw moves slowly upward under the action of the nut, and during the upward movement of the screw, it drives the extraction tool. The extraction tool then moves the filter cartridge upward through the multiple hooks, thereby removing the filter cartridge from the housing of the sand remover. The filter cartridge extraction device of this application has multiple hooks spaced circumferentially on the top of the filter cartridge, thus evenly distributing the force points on the top of the filter cartridge. The extraction tool suspends the multiple hooks, ensuring that the filter cartridge is subjected to uniform force during the extraction process, which is less likely to damage the filter cartridge. Furthermore, the extraction of the filter cartridge using multiple hooks is more stable and avoids the situation where the filter cartridge connecting rod falls off due to force, making it impossible to extract the filter cartridge, as is the case with traditional filter cartridge connecting rod extraction.

[0008] Preferably, the extraction tool includes an extraction rod, and the bottom of the extraction rod is provided with a plurality of horizontally extending suspension rods, each of the suspension rods being used to suspend one of the hooks.

[0009] Preferably, one end of the suspension rod is connected to the extraction rod, and the other end of the suspension rod suspends the pull hook.

[0010] Preferably, the number of hooks is four;

[0011] The number of suspension rods is four.

[0012] Preferably, the top of the extraction rod is detachably connected to the lead screw.

[0013] Preferably, the bottom of the lead screw has two oppositely arranged ear plates, and the top of the extraction rod is detachably connected to the two ear plates.

[0014] Preferably, the top of the extraction rod is provided with a through hole, and a connecting screw is installed between the ear plates, the connecting screw passing through the through hole.

[0015] In a second aspect, the present invention provides a sand remover extraction system, including a housing, a filter element, and a filter element extraction device as described in this application. The top of the filter element is provided with a plurality of mounting holes spaced apart circumferentially, and the bottom of the hook is threaded into the mounting holes.

[0016] In the sand separator extraction system of this application, multiple hooks are first installed in the mounting holes on the top of the filter element. Then, the extraction tool is used to suspend the multiple hooks. Next, the nut on the screw is rotated, and the screw moves slowly upward under the drive of the nut. During the upward movement of the screw, the extraction tool is driven, and the extraction tool then drives the filter element upward through the multiple hooks, thereby removing the filter element from the housing of the sand separator.

[0017] Preferably, it also includes a protective bolt for threaded connection within the mounting hole.

[0018] Preferably, the protective bolt has a groove on its top.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. The filter cartridge extraction device of this application has multiple hooks installed on the top of the filter cartridge. The extraction tool suspends the multiple hooks, and then the nut on the screw is rotated. The screw moves slowly upward under the drive of the nut. During the upward movement of the screw, the extraction tool is driven, and the extraction tool then drives the filter cartridge upward through the multiple hooks, thereby removing the filter cartridge from the housing of the sand remover. The filter cartridge extraction device of this application has multiple hooks circumferentially spaced on the top of the filter cartridge, so that the force points are evenly distributed on the top of the filter cartridge. Then, the extraction tool suspends the multiple hooks to ensure that the filter cartridge is subjected to uniform force during the extraction process, which is not easy to damage the filter cartridge. Moreover, the extraction of the filter cartridge by multiple hooks is more stable and avoids the situation where the filter cartridge connecting rod falls off under force and the filter cartridge cannot be extracted when the filter cartridge is extracted by traditional means.

[0021] 2. The sand separator extraction system of this application installs multiple hooks in the mounting holes on the top of the filter element. The extraction tool suspends the multiple hooks, and then the nut on the screw is rotated. The screw moves slowly upward under the drive of the nut. During the upward movement of the screw, the extraction tool is driven, and the extraction tool then drives the filter element upward through the multiple hooks, thereby removing the filter element from the housing of the sand separator. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the use of the filter cartridge extraction device of this application.

[0023] Figure 2 This is a schematic diagram of the filter cartridge extraction device of this application.

[0024] Figure 3 This is a top view showing the combination of the extraction tool and the hook.

[0025] Figure 4 yes Figure 2 A magnified view of part A.

[0026] Figure 5 This is a schematic diagram showing the connection between the hook and the filter element.

[0027] Figure 6 This is a top view of the filter element.

[0028] Figure 7 This is a front view of the protective bolt.

[0029] Figure 8 This is a top view of the protective bolt.

[0030] Figure 9 This is a diagram showing the installation of the extraction tool and the hook.

[0031] Marked in the image:

[0032] 1-Support plate, 11-Limiting step, 2-Screw rod, 21-Ear plate, 3-Nut, 4-Extraction tool, 41-Extraction rod, 411-Through hole, 42-Suspension rod, 5-Hook, 6-Connecting screw, 7-Housing, 8-Filter element, 81-Mounting hole, 9-Protective bolt, 91-Groove. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0034] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0036] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0037] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0038] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0039] Example 1

[0040] like Figures 1-5 As shown, this embodiment discloses a filter cartridge extraction device, including a support plate 1 and a lead screw 2. The lead screw 2 passes through the support plate 1, and a nut 3 is sleeved on the lead screw 2. The nut 3 abuts against the upper surface of the support plate 1, and an extraction tool 4 is connected to the bottom of the lead screw 2.

[0041] It also includes hooks 5, with multiple hooks 5 arranged circumferentially at intervals on the top of the filter element 8, and the extraction tool 4 is used to suspend the hooks 5.

[0042] In this embodiment of the filter cartridge extraction device, multiple hooks 5 are first installed on the top of the filter cartridge 8. Then, the extraction tool 4 is used to suspend the multiple hooks 5. Next, the nut 3 on the screw 2 is rotated, and the screw 2 moves slowly upward under the drive of the nut 3. During the upward movement of the screw 2, the extraction tool 4 is driven, and the extraction tool 4 then drives the filter cartridge 8 upward through the multiple hooks 5, thereby removing the filter cartridge 8 from the housing 7 of the sand remover. In this embodiment of the filter cartridge extraction device, multiple hooks 5 are arranged circumferentially at intervals on the top of the filter cartridge 8, so that the force points are evenly distributed on the top of the filter cartridge 8. Then, the extraction tool 4 is used to suspend the multiple hooks 5 to ensure that the filter cartridge 8 is subjected to uniform force during the extraction process, and it is not easy to damage the filter cartridge 8. Moreover, the extraction of the filter cartridge 8 through multiple hooks 5 is more stable and avoids the situation where the filter cartridge connecting rod falls off under force and the filter cartridge 8 cannot be extracted when the filter cartridge 8 is extracted through the traditional method.

[0043] In this embodiment, the internal thread of the nut 3 matches the external thread on the lead screw 2. The two threads are engaged. When it is necessary to move the lead screw 2 upward, the nut 3 is rotated by a wrench or other tools, so that the lead screw 2 moves slowly upward under the drive of the nut 3.

[0044] In one or more implementations, such as Figure 2 , Figure 3As shown, the extraction tool 4 includes a vertically arranged extraction rod 41, and a plurality of horizontally extending suspension rods 42 are provided at the bottom of the extraction rod 41. Each suspension rod 42 is used to hook a hook 5.

[0045] The extraction tool 4 includes a vertically arranged extraction rod 41 and multiple horizontally arranged suspension rods 42. One end of each suspension rod 42 is connected to the bottom of the extraction rod 41, and the other end of each suspension rod 42 is used to suspend a hook 5. Multiple hooks 5 are suspended by multiple suspension rods 42 to extract the filter element 8 evenly.

[0046] In this embodiment, multiple suspension rods 42 are arranged circumferentially around the extraction rod 41 and are arranged in a radial pattern, that is, one end of each suspension rod 42 is connected to the bottom of the extraction rod 41, and one end of each suspension rod 42 extends outward.

[0047] In this embodiment, the opening direction of all hooks 5 is set in either a clockwise or counterclockwise direction.

[0048] In optional implementations, such as Figure 2 As shown, the top of the extraction rod 41 is detachably connected to the lead screw 2. This facilitates the installation and removal of the extraction tool 4.

[0049] Furthermore, such as Figure 4 As shown, the bottom of the lead screw 2 has two ear plates 21 arranged opposite each other, and the top of the extraction rod 41 is detachably connected to the two ear plates 21.

[0050] Furthermore, such as Figure 4 As shown, the top of the extraction rod 41 is provided with a through hole 411, and a connecting screw 6 is installed between the ear plates 21, the connecting screw 6 passing through the through hole 411;

[0051] The connecting screw 6 passes through the two ear plates 21 and the connecting screw 6, and the end of the connecting screw 6 is anchored to the outside of the ear plate 21 by a matching nut.

[0052] The above settings enable a detachable connection between the lead screw 2 and the extraction rod 41, facilitating the installation and removal of the extraction rod 41.

[0053] In optional implementations, such as Figure 9 As shown, the installation process of the extraction tool 4 and the hook 5 is as follows: First, install the hook 5 on the top of the filter element 8, then lower the extraction tool 4 so that the suspension rod 42 of the extraction tool 4 is positioned between the adjacent hooks 5, and then rotate the extraction rod 41 so that the suspension rod 42 is inside the hook of the hook 5, as shown. Figure 3 This allows the extraction tool 4 to be installed in conjunction with the hook 5.

[0054] In an optional embodiment, the support plate 1 has a through hole in the middle, through which the lead screw 2 passes.

[0055] In an optional embodiment, a handle is provided on the top of the lead screw 2 to facilitate the operator to remove the lead screw 2 through the handle.

[0056] In optional implementations, such as Figure 2 As shown, the bottom surface of the support plate 1 is provided with a limiting step 11, which is adapted to the shape of the opening of the housing 7, so that the support plate 1 does not shake after it is installed on the housing 7 of the sand remover.

[0057] When in use, the support plate 1 is placed on the opening of the housing 7, and the outer wall of the limiting step 11 abuts against the inner wall of the opening of the housing 7, so that the support plate 1 is locked on the opening of the housing 7 to ensure that the support plate 1 is not easy to shake during operation.

[0058] In optional implementations, such as Figure 6 As shown, multiple mounting holes 81 are spaced apart on the top of the filter element 8. The mounting holes 81 are provided with internal threads, and the bottom of the hook 5 is provided with corresponding external threads. The bottom thread of the hook 5 is connected to the mounting hole 81.

[0059] This embodiment also discloses a method of using a filter cartridge extraction device. When it is necessary to extract the filter cartridge 8, the bottom of the hook 5 is installed in the mounting hole 81, and then the support plate 1 and other components are installed on the housing 7. The hook 5 is suspended by the extraction tool 4. Then, the nut 3 is rotated, and the screw 2 is moved upward by the nut 3. The screw 2 drives the extraction tool 4, and the extraction tool 4 extracts the filter cartridge 8 through the hook 5.

[0060] Example 2

[0061] like Figure 1 , Figure 3 As shown, based on Example 1, the filter cartridge extraction device of this embodiment has four hooks 5;

[0062] There are four suspension rods 42.

[0063] The four hooks 5 are circumferentially spaced on the top of the filter element 8, with equal spacing between adjacent hooks 5, and the opening direction of the four hooks 5 is set in either a clockwise or counterclockwise direction.

[0064] There are four suspension rods 42, one end of which is connected to the extraction rod 41, and the four suspension rods 42 form a cross shape.

[0065] Example 3

[0066] like Figure 1As shown, based on Embodiment 1 or Embodiment 2, this embodiment discloses a sand remover extraction system, including a housing 7, a filter element 8, and a filter element extraction device as described in Embodiment 1 or Embodiment 2. The top of the filter element 8 is provided with a plurality of mounting holes 81 spaced apart in the circumferential direction, and the bottom of the hook 5 is threadedly connected to the mounting holes 81.

[0067] In use, first install multiple hooks 5 into the mounting holes 81 on the top of the filter element 8, then suspend the multiple hooks 5 using the extraction tool 4, and then rotate the nut 3 on the screw 2. The screw 2 moves slowly upward under the drive of the nut 3. During the upward movement of the screw 2, it drives the extraction tool 4, and the extraction tool 4 then drives the filter element 8 upward through the multiple hooks 5, thereby removing the filter element 8 from the housing 7 of the sand remover.

[0068] In optional implementations, such as Figure 6 As shown, the mounting hole 81 is provided with an internal thread, and the bottom of the hook 5 is provided with a corresponding external thread. The bottom thread of the hook 5 is connected to the mounting hole 81.

[0069] In optional implementations, such as Figure 7 , Figure 8 As shown, it also includes a protective bolt 9, which is used in the threaded connection mounting hole 81. When the desander is in normal use, the protective bolt 9 is installed in the mounting hole 81 to protect the internal threads of the mounting hole 81 from damage during the use of the desander.

[0070] Furthermore, the top of the protective bolt 9 is provided with a groove 91, which is a groove type that can be detached by a flathead screwdriver, making it easy to install and remove the protective bolt 9 using a flathead screwdriver.

[0071] This embodiment also discloses a method for using a sand remover extraction system. When it is necessary to extract the filter element 8, first remove the protective bolt 9 from the mounting hole 81, then install the bottom of the hook 5 into the mounting hole 81, then install the support plate 1 and other components on the housing 7, and suspend the hook 5 through the extraction tool 4. Then rotate the nut 3, which drives the screw 2 to move upward. The screw 2 drives the extraction tool 4, and the extraction tool 4 extracts the filter element 8 through the hook 5.

[0072] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter cartridge extraction device, characterized in that, It includes a support plate (1) and a lead screw (2), the lead screw (2) passes through the support plate (1), a nut (3) is sleeved on the lead screw (2), the nut (3) abuts against the upper surface of the support plate (1), and an extraction tool (4) is connected to the bottom of the lead screw (2); It also includes hooks (5), a plurality of hooks (5) being circumferentially spaced on top of the filter element (8), and the extraction tool (4) being used to suspend the hooks (5).

2. The filter cartridge extraction device according to claim 1, characterized in that, The extraction tool (4) includes an extraction rod (41), and the bottom of the extraction rod (41) is provided with a plurality of horizontally extending suspension rods (42), each of the suspension rods (42) being used to suspend one of the hooks (5).

3. The filter cartridge extraction device according to claim 2, characterized in that, One end of the suspension rod (42) is connected to the extraction rod (41), and the other end of the suspension rod (42) suspends the hook (5).

4. The filter cartridge extraction device according to claim 2, characterized in that, The number of hooks (5) is four; The number of suspension rods (42) is four.

5. The filter cartridge extraction device according to claim 2, characterized in that, The top of the extraction rod (41) is detachably connected to the lead screw (2).

6. The filter cartridge extraction device according to claim 5, characterized in that, The bottom of the lead screw (2) has two oppositely arranged ear plates (21), and the top of the extraction rod (41) is detachably connected to the two ear plates (21).

7. The filter cartridge extraction device according to claim 6, characterized in that, The extraction rod (41) has a through hole (411) at the top, and a connecting screw (6) is installed between the ear plates (21), the connecting screw (6) passing through the through hole (411).

8. A sand separator extraction system, characterized in that, The device includes a housing (7), a filter element (8), and a filter element extraction device as described in any one of claims 1-7. The filter element (8) has a plurality of mounting holes (81) spaced apart on its top circumferentially, and the bottom of the hook (5) is threaded into the mounting holes (81).

9. A sand separator extraction system according to claim 8, characterized in that, It also includes a protective bolt (9) for threaded connection into the mounting hole (81).

10. A sand separator extraction system according to claim 9, characterized in that, The protective bolt (9) has a groove (91) on its top.

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