Tool for quickly replacing reverse osmosis membrane of MFIA06 type seawater desalination device
By designing disassembly and installation fixtures and utilizing keyway screws and fixed pressure plate structures, the problems of damage to pressure vessels and large space occupation during reverse osmosis membrane replacement in existing technologies have been solved, enabling fast, simple, and non-damaging membrane replacement.
Patent Information
- Application Number
- CN202422993467.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Existing technologies for replacing the reverse osmosis membrane in MFIA06 seawater desalination units present problems such as damage to the pressure vessel, complex operation, and large space occupation.
A quick replacement system including disassembly and installation fixtures was designed, which utilizes a keyway screw and a fixed pressure plate structure to achieve non-destructive and rapid replacement of reverse osmosis membranes.
It enables rapid, simple, and non-destructive replacement of reverse osmosis membranes, reducing damage to seawater desalination equipment and space occupation.
Smart Images

Figure CN223573082U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to engineering tool field relates to a quick replacement MFIA06 type sea water desalination device reverse osmosis membrane frock. BACKGROUND
[0002] To ensure that the fresh water made by sea water desalination device meets the standard of domestic water, the core part reverse osmosis membrane of sea water desalination device needs to be replaced regularly. There are multiple reverse osmosis membranes in each set of MFIA06 type sea water desalination device. When the reverse osmosis membrane needs to be replaced after the auxiliary pipeline is removed, there are three common methods:
[0003] The first method is to use simple tools such as rubber hammer and vise to pull out the membrane shell head and membrane shell end cover from the pressure vessel, then take out the reverse osmosis membrane, and then replace the new reverse osmosis membrane. The second method is to use a slide hammer pull rod (with a welded screw rod) to screw in the screw hole of the membrane shell head, use the "pulling force" generated by the slide hammer on the pull rod to alternately rotate in the screw hole of the two membrane shell heads, and then slowly disassemble downward until the membrane shell head is pulled out, and then replace the reverse osmosis membrane. The third method is to replace the entire pressure vessel, and replace 7 at a time. The first two methods will cause irreversible damage to the membrane shell head connected to the reverse osmosis membrane in the pressure vessel during the disassembly of the reverse osmosis membrane, because the pressure of the reverse osmosis membrane during work is as high as 4.0-6.8 MPa. The third method has a high replacement frequency during the long-term sea execution of the ship, resulting in high price and excessive occupation of the already scarce storage space.
[0004] Based on the above technical problems, it is very important to develop a quick, simple and non-destructive replacement MFIA06 type sea water desalination device reverse osmosis membrane frock. UTILITY MODEL CONTENTS
[0005] The problem to be solved by the utility model is to realize quick, simple and non-destructive replacement of MFIA06 type sea water desalination device reverse osmosis membrane.
[0006] A quick replacement MFIA06 type sea water desalination device reverse osmosis membrane frock, comprising a disassembly frock and an installation frock.
[0007] The disassembly frock mainly comprises a keyway screw rod 1, a deformed ratchet handle 2, a first fixed pressure plate 5, two semicircular support blocks 6 and an inner hole boss cross beam 7. The two semicircular support blocks 6 are fixed on the inner hole boss cross beam 7 through bolts, and are used for supporting the disassembly frock. The lower end of the keyway screw rod 1 extends out of the inner hole of the inner hole boss cross beam 7, a bolt is installed on the lower end, and the end is connected to the first fixed pressure plate 5. The upper end of the keyway screw rod 1 is connected to the deformed ratchet handle 2. When the disassembly frock is used, a torque is applied to the nut on the keyway screw rod 1 by using a wrench, the membrane shell head of the reverse osmosis membrane is "pulled" out by the keyway screw rod 1, and then the reverse osmosis membrane is taken out.
[0008] The installation tool mainly consists of a top column 9, a articulated bolt 10, split type fixing ring clamps 12, a second fixing pressure plate 14 and a cross beam 8; the two split type fixing ring clamps 12 are fixed into a ring by bolts, the ring is matched with the pressure container on the seawater desalination device; the second fixing pressure plate 14 is fixed at the lower end of the top column 9 through a top column nut 15, the upper end of the top column 9 passes through the cross beam 8 and is fixed; one end of the articulated bolt 10 is connected with the ring, and the other end passes through the cross beam 8 and is fixed; when the installation tool is used, a torque is applied to the top column 9 by a wrench, and is transmitted to the second fixing pressure plate 14, so that the membrane shell head and the new reverse osmosis membrane are evenly and parallelly installed into the pressure container, and the replacement of the reverse osmosis membrane is realized.
[0009] The first fixing pressure plate 5 is the same in structure as the second fixing pressure plate 14.
[0010] The quick replacement MFIA06 type seawater desalination device reverse osmosis membrane tool of the utility model includes a dismounting tool and an installation tool, both of which are simple in structure, and the process of replacing the reverse osmosis membrane is simple and fast, and the seawater desalination device is not damaged. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a front view of the dismounting tool of the utility model.
[0012] Figure 2 It is a perspective view of the dismounting tool of the utility model.
[0013] Figure 3 It is a front view of the installation tool of the utility model.
[0014] Figure 4 It is a perspective view of the installation tool of the utility model.
[0015] In the drawing: 1, key groove screw rod; 2, deformation crank; 3, first bolt; 4, first nut; 5, first fixing pressure plate; 6, semicircular supporting block; 7, inner hole boss cross beam; 8, cross beam; 9, top column; 10, articulated bolt; 11, second bolt; 12, split type fixing ring clamp; 13, second nut; 14, second fixing pressure plate; 15, top column nut; 16, third nut. DETAILED DESCRIPTION
[0016] The specific implementation manners of the utility model are further described below in combination with the drawings and technical solutions.
[0017] A quick replacement MFIA06 type seawater desalination device reverse osmosis membrane tool, comprising a dismounting tool and an installation tool;
[0018] The dismounting tool mainly consists of a keyway screw rod 1, a deformation handle 2, a first fixed pressing disc 5, two semicircular supporting blocks 6 and an inner hole boss crossbeam 7. The two semicircular supporting blocks 6 are fixed under the inner hole boss crossbeam 7 by first bolts 3 and are used for supporting the dismounting tool. The lower end of the keyway screw rod 1 extends out of the inner hole of the inner hole boss crossbeam 7, a bolt is installed on the lower end, and the end of the bolt is connected with the first fixed pressing disc 5. The upper end of the keyway screw rod 1 is connected with the deformation handle 2. When the dismounting tool is used, the two semicircular supporting blocks 6 and the inner hole boss crossbeam 7 are connected together by the inner hexagonal bolts. Then the first fixed pressing disc 5 is connected with the membrane shell head in the pressure container of the seawater desalination device by screws, and the first fixed pressing disc 5 is screwed and fixed with the lower end of the keyway screw rod 1 to become an integral whole. The lower end of the keyway screw rod 1 penetrates through the inner hole boss crossbeam 7, and it is ensured that the keyway is aligned with the flat key of the inner hole boss when the keyway screw rod 1 penetrates in, and the keyway screw rod 1 is pushed in parallel. Finally, the deformation handle 2 is installed on the upper end of the keyway screw rod 1, and the membrane shell head is steadily pulled out in parallel by rotating the deformation handle 2, or the deformation handle 2 can be retracted and rotated to pull out the membrane shell head in parallel due to the limited width of the space, or the deformation handle 2 can be replaced by a nut, and the membrane shell head of the reverse osmosis membrane is pulled out by the keyway screw rod 1 by applying torque to the nut on the keyway screw rod by a wrench, and then the reverse osmosis membrane is taken out.
[0019] The mounting tool mainly consists of a top column 9, a hinge bolt 10, a split type fixed ring clamp 12, a second fixed pressing disc 14 and a crossbeam 8. Two split type fixed ring clamps 12 are fixed as a ring by second bolts 11, and the ring is matched with the pressure container of the seawater desalination device. The second fixed pressing disc 14 is fixed at the lower end of the top column 9 by a top column nut 15, and the upper end of the top column 9 passes through the crossbeam 8 and is fixed. One end of the hinge bolt 10 is connected with the ring, and the other end passes through the crossbeam 8 and is fixed. When the mounting tool is used, the split type fixed ring clamps 12 are fixed on the pressure container of the seawater desalination device by bolts, and the second fixed pressing disc 14 is connected with the membrane shell head in the pressure container by screws. Then the two hinge bolts 10 are fixed on the crossbeam 8 by nuts, and the other end of the hinge bolt 10 is connected with the ring formed by the split type fixed ring clamps. The top column 9 is screwed into the central circular threaded hole of the crossbeam 8, and the end of the top column 9 is supported in the conical hole on the upper part of the second fixed pressing disc 14. Finally, torque is applied to the top column by a wrench, and the torque is transmitted to the second fixed pressing disc 14, and then the membrane shell head and the new reverse osmosis membrane are evenly and parallelly installed in the pressure container, and the replacement of the reverse osmosis membrane is realized.
Claims
1. A tooling for quickly replacing the reverse osmosis membrane of an MFIA06 type seawater desalination unit, characterized in that, The quick-change reverse osmosis membrane tooling for the MFIA06 seawater desalination unit includes disassembly tooling and installation tooling. The disassembly fixture mainly consists of a keyway screw (1), a deformable crank handle (2), a first fixed pressure plate (5), two semi-circular support blocks (6), and an inner hole boss beam (7). The two semi-circular support blocks (6) are fixed to the inner hole boss beam (7) by bolts to support the disassembly fixture. The lower end of the keyway screw (1) extends out from the inner hole of the inner hole boss beam (7), and bolts are installed on it. The end is connected to the first fixed pressure plate (5). The upper end of the keyway screw (1) is connected to the deformable crank handle (2). When using the disassembly fixture, a torque is applied to the nut on the keyway screw (1) using a wrench to "pull" the membrane shell end cap of the reverse osmosis membrane out through the keyway screw (1) and then remove the reverse osmosis membrane. The installation fixture mainly consists of a top column (9), a hinge bolt (10), a split-type fixing ring clamp (12), a second fixed pressure plate (14), and a crossbeam (8). The two split-type fixing ring clamps (12) are fixed into a ring with bolts, which matches the pressure vessel on the seawater desalination device. The second fixed pressure plate (14) is fixed to the lower end of the top column (9) by the top column nut (15), and the upper end of the top column (9) passes through the crossbeam (8) and is fixed. One end of the hinge bolt (10) is connected to the ring, and the other end passes through the crossbeam (8) and is fixed. When the installation fixture is used, a torque is applied to the top column (9) with a wrench and transmitted to the second fixed pressure plate (14), thereby evenly and parallelly installing the membrane shell end cap and the new reverse osmosis membrane into the pressure vessel to realize the replacement of the reverse osmosis membrane.
2. The quick-change reverse osmosis membrane fixture for the MFIA06 type seawater desalination unit according to claim 1, characterized in that, When the keyway screw (1) is inserted into the inner hole of the inner hole boss crossbeam (7), ensure that the keyway and the inner hole protrusion flat key are aligned and pushed in parallel.
3. The quick-change reverse osmosis membrane fixture for the MFIA06 seawater desalination unit according to claim 1, characterized in that, The first fixed pressure plate (5) and the second fixed pressure plate (14) have the same structure.