A filter screen dismounting tool for a filter desander

Abstract

This utility model relates to the field of filter-type sand separators and discloses a filter screen disassembly tool for filter-type sand separators. The tool includes a top plate, connecting parts, and at least two jacks. The connecting parts include connecting rods and several connectors. The connecting rods and connectors are detachably connected, and the connecting rods are fixedly connected to the top plate. The connectors are adapted to the filter screen. The jacks are centrally symmetrically arranged on the circumference of the top plate. This utility model provides a modular filter screen disassembly tool, addressing the problems of easily damaged filter screens and numerous disassembly tools in filter-type sand separators. It designs a disassembly device composed of a top plate, connecting parts, and multiple jacks. The connecting parts use replaceable connectors to adapt to different filter screen specifications. By applying force from one or more sides with the centrally symmetrically installed jacks, the filter screen is deformed evenly under force, achieving eccentric pull-out and avoiding damage caused by violent disassembly. This reduces the types of tools, lowers the filter screen damage rate, improves work efficiency and safety, and effectively saves costs.

Description

Technical Field

[0001] This solution relates to the field of filter-type sand separators, specifically to a filter screen disassembly tool for filter-type sand separators. Background Technology

[0002] Filter-type desanders are used in oilfield trial production operations, primarily to filter fluids within the well and protect surface equipment. Fluid is introduced into a cylindrical filter cylinder through the desander inlet, where a filter screen is installed. The filter screen filters out solid impurities in the fluid and collects them inside. Clean fluid is then led out of the desander outlet, completing the filtration process. During cleaning, the filter screen is removed from the filter cylinder using a manual hoist. However, in field use, the filter screen often becomes stuck inside the filter cylinder due to deformation or the spillage of fine sand particles. Field personnel can only remove it by force using a manual hoist, sometimes even breaking the lifting ring. This method of operation poses a significant safety hazard, with the risk of the hoist chain breaking and causing injury, or the traveling block of the hoist being pulled off and injuring someone.

[0003] Currently, the Chinese patent "Hydraulic Unblocking Tool for Sand Detergent Filter Screen and its Usage Method", publication number CN111980609A, discloses a filter screen removal tool that uses a hydraulic manual pump to drive a hollow jack to directly pull out the sand detergent filter screen. However, due to the different specifications of filter screens produced by various manufacturers, the specifications of the filter screen removal tools are not uniform, which requires workers to carry a large number of tools. At the same time, the filter screen is easily damaged when forcibly pulled out, which increases production costs. Summary of the Invention

[0004] The present invention aims to provide a tool for disassembling the filter screen of a filter-type sand separator, so as to reduce the total number of tools carried by the staff and reduce the damage to the filter screen.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter screen disassembly tool for a filter-type sand remover, comprising a top plate, a connecting piece, and at least two jacks. The connecting piece includes a connecting rod and several joints. The connecting rod and the joints are detachably connected. The connecting rod is fixedly connected to the top plate. The joints are adapted to the filter screen. The jacks are centrally symmetrically arranged on the circumference of the top plate.

[0006] The beneficial effects of this solution are as follows: This utility model addresses the problem of numerous tools and easily damaged filter screens during the disassembly of filter screens in sand separators by designing a modular disassembly tool that flexibly adapts to various filter screen specifications. The tool mainly consists of a top plate, connecting parts, and multiple jacks. The connecting parts feature detachable connecting rods and various adapter joints, allowing for quick switching and assembly according to filter screens from different manufacturers and of different specifications. At least two jacks are symmetrically installed at the center of the top plate. When the filter screen is difficult to remove due to fine sand jamming or deformation, adjusting the jacks allows for force to be applied to one or more sides of the filter screen, causing moderate deformation under balanced force, thus achieving eccentric pull-out of the filter screen and avoiding damage caused by traditional brute force. This method not only effectively reduces the number of tools required for on-site operations but also lowers the probability of filter screen damage, improves work efficiency and safety, and significantly reduces production costs.

[0007] Furthermore, the top plate is provided with a connecting hole, and the connecting rod is a threaded rod, which is threadedly connected to the top plate through the connecting hole.

[0008] Beneficial effects: 1. Due to the threaded connection between the lead screw and the top plate, operators can adjust the height of the top plate and its connected jacks by rotating the lead screw according to the height requirements of the desander installed at different well depths. This allows the disassembly tool to flexibly adapt to the disassembly of desander filters at different depths, improving the tool's practicality. 2. The threaded connection not only facilitates height adjustment but also ensures the stability of the connection between the connecting rod and the top plate, avoiding safety hazards caused by unstable connections during disassembly, further ensuring the safety and reliability of the operation. 3. Compared to traditional fixed-height or non-adjustable disassembly tools, this height-adjustable design allows the same set of tools to adapt to more work scenarios, reducing the hassle of operators preparing multiple different sizes of tools, and significantly reducing the total amount of tools carried and the preparation time.

[0009] Furthermore, a handle is provided on the top plate.

[0010] Beneficial effects: The handle makes it easier for operators to grip and move disassembly tools, reducing labor intensity during the handling process and improving work efficiency; when disassembling the filter screen, operators can more accurately control the position and direction of the disassembly tools through the handle, especially in situations where the well opening is narrow or the working space is limited. The presence of the handle helps to accurately install and position the tools, thus making the filter screen disassembly process smoother.

[0011] Furthermore, it also includes a toolbox, which contains several slots that are adapted to the top plate, connectors, or jacks.

[0012] Beneficial effects: 1. By embedding the various components of the disassembly tool into the corresponding slots inside the toolbox, operators can more easily pack, carry, and store the tool, eliminating the need to carry each component separately and significantly improving the tool's portability; 2. The slot design inside the toolbox effectively secures and protects components such as the top plate, connectors, and jack, preventing damage to the tool due to shaking or collisions during transport. It also avoids the problem of losing loose parts, further ensuring the integrity and durability of the disassembly tool.

[0013] Furthermore, the jack is a manual hydraulic type.

[0014] Beneficial effects: Manual hydraulic jacks require no electricity and are not limited by the power supply conditions of the working environment, making this disassembly tool flexible for use in various environments, especially suitable for remote, field, or oilfield work sites without power supply; Manual hydraulic jacks allow operators to apply force gradually and precisely as needed, thus enabling more accurate control of force when disassembling the filter screen, avoiding damage to the filter screen due to excessive force, and also effectively preventing the filter screen from being unable to be pulled out smoothly due to insufficient force; Compared with electric or pneumatic jacks, manual hydraulic jacks are safer, as operators can perceive and control the force in real time, reducing the risk of safety accidents caused by equipment failure or misoperation; Manual hydraulic jacks have a simple structure, are durable and reliable, and are relatively easy to maintain, and can work stably for a long time under harsh conditions, thus ensuring the efficient, safe, and stable disassembly of the filter screen of the filter desander.

[0015] Furthermore, the connector is threaded to the connecting rod.

[0016] Beneficial Effects: Excellent Self-Locking: The threaded connection has a self-locking function. When the connector is screwed into the connecting rod, the friction between the threads prevents the connector from accidentally loosening or slipping, ensuring the stability of the tool connection when disassembling the filter. Convenient Assembly and Disassembly: The threaded connection makes the assembly and disassembly of the connector and connecting rod very convenient and quick. Workers can quickly change connectors according to different filter specifications, improving work efficiency. Strong Adaptability: The threaded connection allows for more precise adjustment of the contact position and tightness between the connector and the filter, enabling the tool to adapt to filters of different specifications, shapes, and materials, enhancing the tool's versatility and practicality. Enhanced Safety: Due to the self-locking characteristic of the threaded connection, safety hazards such as tool loss of control, filter damage, or even personal injury caused by connector slippage during operation are avoided, thereby improving the safety factor of the entire disassembly operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of Embodiment 1 of the present utility model;

[0018] Figure 2 for Figure 1 Top view;

[0019] Figure 3 This is a three-dimensional view of the jack in Embodiment 1 of this utility model;

[0020] Figure 4 This is an assembly diagram of the present invention.

[0021] The reference numerals in the accompanying drawings include: top plate 1, hollow groove 11, connecting hole 12, connecting rod 21, connector 22, jack body 31, screw 311, control hole 312, base 313, support surface 314, connecting rod 315, nut 316, control lever 32, toolbox 4, handle 41, and slot 42. Detailed Implementation

[0022] Example 1 is basically as shown in the appendix. Figure 1-4 As shown, Figure 1-4 The tool shown is for removing the filter screen of a filter-type sand separator, such as... Figure 1 , Figure 2 As shown, it includes toolbox 4, top plate 1, connector 22, and two jacks, as follows: Figure 1 As shown, the toolbox 4 is provided with a handle 41 on the outside and several slots 42 inside the toolbox 4. The slots 42 are respectively adapted to the top plate 1, the connector 22 or the jack.

[0023] like Figure 1 , Figure 4 As shown, the top plate 1 has a circular structure, with a connecting hole 12 at the center of the disc. Symmetrically arranged perforated grooves 11 are formed between the perforated grooves 11 and the disc, creating a handle.

[0024] like Figure 2 As shown, the connector 22 includes a connecting rod 21 and four connectors. The connecting rod 21 is a lead screw, which is threaded to the top plate 1 through the connecting hole 12. The connecting rod 21 is threaded to the connectors and is fixedly connected to the top plate 1. The connectors are adapted to the filter screens respectively.

[0025] like Figure 3 As shown, the jack includes a jack body 31 and a control lever 32. The jack body 31 includes a screw 311, a connecting rod 315, a base 313, and a support surface 314. A nut 316 is rotatably mounted on the screw 311. The connecting rod 315 is hinged to the nut 316. A control hole 312 is provided at the right end of the screw 311. In use, the control lever 32 is inserted into the control hole 312. The rotation of the control lever 32 drives the screw 311 to rotate, thereby moving the nut 316. In turn, the nut 316 pulls the connecting rod 315 to move, causing the connecting rods 315 to move closer to each other and push the support surface 314 away from the base 313.

[0026] The specific implementation process is as follows:

[0027] S1: In use, first, select a suitable connector according to the specifications of the filter screen, thread the connector to the connecting rod 21, and fix the connector to the filter screen. Second, fix the top plate 1 to the connecting rod 21, and place the jacks symmetrically on the circumference of the top plate 1, so that the top plate 1, the connecting part 22 and the jacks are aligned. Figure 4 After assembly, the height of the support surfaces 314 of the two jacks is adjusted synchronously using the control lever 32 to remove the filter screen.

[0028] S2: When jamming occurs, rotate the single-sided control lever 32 one full turn, and then adjust the height of the two jack support surfaces 314 simultaneously again.

[0029] S3: If the jam cannot be relieved, rotate the control levers 32 of the two jacks alternately for two turns. The difference between the number of rotations of the screw on one side of the jack and the number of rotations of the screw on the other side should be less than or equal to 3.

[0030] S4: If the jamming occurs again, repeat S3 until the filter is completely removed.

[0031] Example 2

[0032] Example 2 is basically the same as Example 1, except that the jack is a manual hydraulic type, which is more labor-saving than the simple jack in Example 1, and is more suitable for narrow working conditions.

[0033] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that the technical means used to solve problems in the above embodiments of this utility model can be combined to solve multiple technical problems simultaneously. For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A tool for disassembling the filter screen of a filter-type sand separator, characterized in that: It includes a top plate, connectors and two jacks. The connectors include connecting rods and several joints. The connecting rods and joints are detachably connected. The connecting rods are fixedly connected to the top plate. The joints are adapted to the filter screen. The jacks are centrally located on the circumference of the top plate.

2. The filter screen disassembly tool for a filter-type sand remover according to claim 1, characterized in that: The top plate is provided with a connection hole, and the connecting rod is a threaded rod, which is threadedly connected to the top plate through the connection hole.

3. The filter screen disassembly tool for a filter-type sand remover according to claim 2, characterized in that: A handle is provided on the top plate.

4. The filter screen disassembly tool for a filter-type sand remover according to claim 3, characterized in that: It also includes a toolbox, which has several slots that are adapted to the top plate, connectors or jacks.

5. The filter screen disassembly tool for a filter-type sand remover according to claim 4, characterized in that: The jack is a manual hydraulic type.

6. The filter screen disassembly tool for a filter-type sand remover according to claim 1, characterized in that: The connector is threaded to the connecting rod.

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