Reverse osmosis membrane end cover dismounting tool

Abstract

The utility model relates to a reverse osmosis membrane end cover dismounting tool, and belongs to the technical field of water treatment equipment maintenance tools. According to the technical scheme, a pressure bearing is arranged on a bearing frame, a main connecting lead screw is arranged in the center of the pressure bearing in a matched mode, and the main connecting lead screw penetrates through a force bearing plate; an internal thread drawing device is arranged at the lower end of the main connecting screw rod and is a cylinder body with internal threads, and the internal threads of the internal thread drawing device are matched with external threads of a water production port in the center of the reverse osmosis membrane end cover; the upper end of the main connecting lead screw is connected with the electric wrench in a matched mode. A plurality of nylon cushions are arranged on the edge of the force bearing plate and are matched with the end part of a central pipe of the reverse osmosis membrane end cover. The special tool is used for dismantling the reverse osmosis membrane end cover, operation is easy and convenient, prying is convenient, operation can be convenient and fast in a narrow space, an O-shaped ring on the end cover can be more effectively protected, efficiency is improved, and the problems that the reverse osmosis membrane end cover is difficult to pry when dismantled, professional tools are lacked, and operation time is long are solved.

Description

Technical Field

[0001] This utility model relates to a reverse osmosis membrane end cap disassembly and assembly tool, belonging to the technical field of water treatment equipment maintenance tools. Background Technology

[0002] Reverse osmosis membrane elements, as core components of modern water treatment systems, are widely used in seawater desalination, pure water production, and wastewater reuse. A typical existing reverse osmosis membrane element consists of a membrane sheet, a flow guide mesh, and a central tube. The central tube is sealed at both ends with end caps. The end caps have a protruding product water port at their center, with external threads for easy plugging or connection. An O-ring is embedded in the outer circumference of the end cap. Due to the high internal pressure of the reverse osmosis membrane element, the inner wall of the central tube is fixed to the end cap using an interference fit and locking blocks. The inner wall of the central tube has an annular groove. After the end cap and the embedded O-ring are pushed into the groove, multiple locking blocks are inserted into the gap between the end cap and the groove, and then screws are used to fix the locking blocks in the groove on the inner wall of the central tube. Because the inner wall of the central tube is fixed to the end cap using an interference fit and locking blocks, the following problems exist during disassembly and installation:

[0003] 1. Traditionally, using simple tools such as flathead screwdrivers to pry open the end cap requires overcoming the friction of the O-ring;

[0004] 2. Lack of general-purpose professional tools; the use of homemade tools on site and the use of non-professional tools can easily cause misaligned threads.

[0005] 3. Large membrane shell end caps are difficult to apply force to in narrow spaces;

[0006] 4. Existing methods are prone to scratching O-rings during disassembly and assembly (statistics show that about 30% of seal failures are caused by damage during disassembly and assembly).

[0007] 5. The average time for disassembling and assembling a standard 8-inch membrane element end cap is relatively long, about 15-25 minutes.

[0008] These technical defects directly lead to increased maintenance costs for reverse osmosis systems. Statistics show that membrane element damage caused by improper end cap installation or removal accounts for approximately 12-15% of the annual replacements. Therefore, developing a safe, efficient, and universal tool and method for installing and removing reverse osmosis membrane end caps has significant practical engineering value. Utility Model Content

[0009] The purpose of this utility model is to provide a reverse osmosis membrane end cap removal and installation tool. This tool is designed for removing reverse osmosis membrane end caps, is easy to operate, and facilitates prying, disassembly, and installation. It can be easily operated in confined spaces, effectively protects the O-rings on the end caps, improves efficiency, and solves the aforementioned technical problems in the background art.

[0010] The technical solution of this utility model is:

[0011] A reverse osmosis membrane end cap disassembly and assembly tool includes a pressure bearing, a locking nut, a bearing bracket, a main connecting screw, an internal thread puller, nylon buffer pads, and a support plate. The bearing bracket is centrally located on the support plate, and the pressure bearing is mounted on the bearing bracket. The main connecting screw is centrally located on the pressure bearing and passes through the support plate. An internal thread puller, a cylindrical body with internal threads, is positioned at the lower end of the main connecting screw. These internal threads match the external threads of the permeate outlet at the center of the reverse osmosis membrane end cap. The upper end of the main connecting screw is connected to an electric wrench. Multiple nylon buffer pads are positioned along the edge of the support plate, and these nylon buffer pads match the central tube end of the reverse osmosis membrane end cap.

[0012] Furthermore, the upper end of the main connecting screw is provided with an electric wrench extension sleeve connecting rod, which is matched and connected to the electric wrench.

[0013] Furthermore, the inner wire puller is equipped with a puller assist rod.

[0014] Furthermore, the upper end of the nylon buffer pad is fixed to the load-bearing plate by a buffer pad connecting screw.

[0015] Furthermore, the main connecting screw passes through the inner thread puller and is fixed by a locking nut, and the puller assist rod is fixed to the side of the inner thread puller by welding.

[0016] Furthermore, the main connecting screw passes through the pressure bearing at the center of the load-bearing plate, and the pressure bearing is welded and fixed to the load-bearing plate by a bearing bracket.

[0017] Furthermore, the number of nylon buffer pads is two, arranged at 180° intervals in the circumferential direction of the load-bearing plate.

[0018] Using this invention, align the internal thread puller of the reverse osmosis membrane end cap assembly / disassembly tool with the end cap product port, and rotate the internal thread puller so that its internal thread engages with the external thread of the end cap product port; drive the main connecting screw to rotate clockwise using an electric wrench, which in turn rotates the internal thread puller, causing the end cap product port and the reverse osmosis membrane end cap, which are engaged with the internal thread puller, to rotate together, pulling the reverse osmosis membrane end cap outward to remove it from the central tube; the assembly steps of the reverse osmosis membrane end cap are the reverse of the disassembly steps.

[0019] The beneficial effects of this utility model are: using special tools to remove the reverse osmosis membrane end caps is simple and easy to operate, can be easily pried open in confined spaces, can more effectively protect the O-rings on the end caps, improve efficiency, and solve problems such as difficulty in prying off reverse osmosis membrane end caps, lack of professional tools, and long operation time. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0021] In the diagram: 1. Electric wrench extended socket connecting rod; 2. Pressure bearing; 3. Locking nut; 4. Bearing bracket; 5. Main connecting screw; 6. Inner thread puller; 7. Puller assist rod; 8. Buffer pad connecting screw; 9. Nylon buffer pad; 10. Support plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See attached document Figure 1 A reverse osmosis membrane end cap disassembly and assembly tool includes a pressure bearing 2, a locking nut 3, a bearing bracket 4, a main connecting screw 5, an internal thread puller 6, nylon buffer pads 9, and a support plate 10. The bearing bracket 4 is located at the center of the support plate 10, and the pressure bearing 2 is mounted on the bearing bracket 4. The main connecting screw 5 is matched to the center of the pressure bearing 2 and passes through the support plate 10. The internal thread puller 6 is located at the lower end of the main connecting screw 5. The internal thread puller 6 is a cylindrical body with internal threads, and its internal threads match the external threads of the product water inlet at the center of the reverse osmosis membrane end cap. The upper end of the main connecting screw 5 is matched and connected to an electric wrench. Multiple nylon buffer pads 9 are arranged along the edge of the support plate 10, and the nylon buffer pads 9 match the end of the central tube of the reverse osmosis membrane end cap.

[0024] Preferably, the upper end of the main connecting screw 5 is provided with an electric wrench extension sleeve connecting rod 1, which is matched and connected to the electric wrench.

[0025] Preferably, the inner wire puller 6 is provided with a puller assist rod 7.

[0026] In this embodiment, the upper end of the nylon buffer pad 9 is fixed to the load-bearing plate 10 via the buffer pad connecting screw 8.

[0027] The main connecting screw 5 passes through the internal thread puller 6 and is fixed by a locking nut. The puller assist rod 7 is fixed to the side of the internal thread puller 6 by welding. The main connecting screw 5 has a specification of M12×180mm.

[0028] The main connecting screw 5 then passes through the pressure bearing 2 at the center of the load-bearing plate 10. The pressure bearing 2 is welded and fixed to the load-bearing plate 10 by the bearing bracket 4. The pressure bearing is a 251201 bearing.

[0029] Two nylon buffer pads 9 are arranged at 180° intervals around the circumference of the load-bearing plate 10. A connecting threaded rod 8 passes through holes at both ends of the load-bearing plate 10 to connect and fix the nylon buffer pads 9 to the load-bearing plate 10. The nylon buffer pads 9 are M8×40mm cylindrical shapes.

[0030] The electric wrench extension sleeve connecting rod 1 is fitted with two locking nuts, and the two locking nuts are screwed into the main connecting screw 5 at 1 / 2 position to lock it. The electric wrench extension sleeve connecting rod 1 has a specification of 9×145mm.

[0031] The process of disassembling and assembling the reverse osmosis membrane end cap involves first using a screwdriver to remove the retaining block between the end cap and the inner wall of the central tube; then the disassembly steps are as follows:

[0032] Step 1: Align the internal thread puller 6 of the reverse osmosis membrane end cap disassembly and assembly tool with the end cap product port, and rotate the puller assist rod 7 to engage the internal thread of the internal thread puller 6 with the external thread of the end cap product port.

[0033] Step 2: Insert the electric wrench into the electric wrench extension sleeve connecting rod 1, turn the electric wrench clockwise to drive the internal thread puller 6 to rotate, and rotate the end cap product water port and reverse osmosis membrane end cap that are engaged with the internal thread puller 6 together to pull the reverse osmosis membrane end cap outward.

[0034] Step 3: Remove the reverse osmosis end cap from the center tube.

[0035] Step 4, the steps for assembling the reverse osmosis membrane end cap are the reverse of the steps for removing the reverse osmosis membrane end cap.

Claims

1. A tool for dismounting a reverse osmosis membrane end cap, characterized in that: The device includes a pressure bearing (2), a locking nut (3), a bearing frame (4), a main connecting screw (5), an internal thread puller (6), a nylon buffer pad (9), and a support plate (10). The bearing frame (4) is set at the center of the support plate (10), and the pressure bearing (2) is set on the bearing frame (4). The main connecting screw (5) is matched at the center of the pressure bearing (2), and the main connecting screw (5) passes through the support plate (10). The lower end of the main connecting screw (5) is provided with an internal thread puller (6), which is a cylindrical body with internal threads. Its internal threads match the external threads of the product water outlet at the center of the reverse osmosis membrane end cap. The upper end of the main connecting screw (5) is matched and connected to an electric wrench. Multiple nylon buffer pads (9) are set on the edge of the support plate (10), and the nylon buffer pads (9) match the end of the central tube of the reverse osmosis membrane end cap.

2. The tool according to claim 1, wherein: The upper end of the main connecting screw (5) is provided with an electric wrench extension sleeve connecting rod (1), which is matched and connected to the electric wrench.

3. The tool according to claim 1 or 2, wherein: The inner wire puller (6) is equipped with a puller assist rod (7).

4. The tool according to claim 1 or 2, wherein: The upper end of the nylon buffer pad (9) is fixed to the load-bearing plate (10) by the buffer pad connecting screw (8).

5. The tool of claim 3, wherein: The main connecting screw (5) passes through the inner thread puller (6) and is fixed by the locking nut. The puller assist rod (7) is fixed to the side of the inner thread puller (6) by welding.

6. The tool according to claim 1 or 2, wherein: The main connecting screw (5) passes through the pressure bearing (2) at the center of the bearing plate (10), and the pressure bearing (2) is welded and fixed to the bearing plate (10) by the bearing frame (4).

7. The tool according to claim 1 or 2, wherein: The number of nylon buffer pads (9) is two, which are arranged at 180° intervals in the circumferential direction of the load-bearing plate (10).

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