Auxiliary device for disassembling hollow fiber spraying plate

Abstract

The utility model provides an auxiliary device for disassembling a hollow fiber spraying plate, and relates to the technical field of spinneret plate cleaning, the auxiliary device comprises a screw rod and a lifting rod, threads are arranged on the outer wall of the first end of the screw rod, when a core needle is disassembled, the screw rod is rotated to enable the threads to be in threaded connection with the inner wall of the core needle, and the lifting rod comprises a handle and a connecting rod; the first end of the connecting rod is detachably connected with the second end of the screw rod, the extending direction of the handle is perpendicular to the extending direction of the connecting rod, the axis of the connecting rod and the axis of the screw rod are located on the same straight line, a user can pull out the core needle by holding the handle and vertically pulling the lifting rod and the screw rod upwards, and collision is avoided to a great extent. And the service life of the spinneret plate is greatly prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of spinneret cleaning, and in particular to an auxiliary device for disassembling a hollow fiber spinneret. Background Art

[0002] Hollow fiber membranes are used in a variety of processes, from gas separation to dialysis, from reverse osmosis to microfiltration. The advantage of hollow fibers over flat membranes is their greater surface area per module volume. During the spinning process, the feed can shift after exiting the spinneret, causing varying degrees of fluctuation in the size and performance of the resulting membrane fibers. Therefore, cleaning the spinneret is unavoidable during testing.

[0003] During disassembly, the material residue inside makes disassembly not smooth, and excessive force may damage the core needle. The existing nozzle plate core needle disassembly device has a slow disassembly speed and is prone to collision, which reduces the service life of the spinneret. Utility Model Content

[0004] An embodiment of the present application provides an auxiliary device for disassembling a hollow fiber nozzle plate. The core needle can be pulled out by pulling the lifting rod and the screw vertically upward, thereby avoiding bumps to a great extent and greatly improving the service life of the spinneret. The present application solves the problem that the existing method of disassembling the core needle of the nozzle plate has a slow disassembly speed and is prone to bumps, which affects the service life of the spinneret.

[0005] The embodiment of the present application provides a hollow fiber spray plate disassembly auxiliary device, including a screw and a lifting rod;

[0006] The outer wall of the first end of the screw rod is provided with screw threads, and the screw threads of the screw rod are screwed to the inner wall of the core needle;

[0007] The lifting rod includes a handle and a connecting rod. The second end of the connecting rod is fixed to the middle of the handle, and the extension direction of the handle is perpendicular to the extension direction of the connecting rod. The first end of the connecting rod is detachably connected to the second end of the screw rod.

[0008] In a feasible implementation, the outer wall of the second end of the screw is provided with a reverse pattern, the first end of the connecting rod is provided with a connecting hole, and the reverse pattern of the screw is inserted into the connecting hole of the connecting rod.

[0009] In a feasible implementation, the auxiliary device further includes a fixing gasket;

[0010] A first through hole is provided in the middle of the fixing washer, and the screw rod is inserted into the first through hole of the fixing washer.

[0011] In a feasible implementation, a side portion of the fixing gasket is provided with a cutout.

[0012] In a feasible implementation, the auxiliary device further includes an auxiliary gasket;

[0013] A second through hole is provided in the middle of the auxiliary gasket, the screw is inserted into the second through hole of the auxiliary gasket, and the lower surface of the fixed gasket is in contact with the upper surface of the auxiliary gasket.

[0014] In a feasible implementation, the auxiliary gasket includes a first arc-shaped piece and a second arc-shaped piece, and the first arc-shaped piece and the second arc-shaped piece can be assembled into a complete circle.

[0015] In a feasible implementation, a socket is provided on the side of the first arc-shaped piece facing the second arc-shaped piece, and a plug rod matching the socket is provided on the side of the second arc-shaped piece facing the first arc-shaped piece, and the plug rod of the second arc-shaped piece is plugged into the socket of the first arc-shaped piece.

[0016] In a feasible implementation, the upper surfaces of the first arc-shaped piece and the second arc-shaped piece are both provided with a limiting strip, and the lower surfaces of the first arc-shaped piece and the second arc-shaped piece are both provided with a first limiting groove, the two limiting strips are arranged opposite to the two first limiting grooves, and the extending direction of the limiting strips is parallel to the extending direction of the insertion rod;

[0017] Second limiting grooves are provided on both sides of the lower surface of the fixing gasket;

[0018] The limiting strip of the auxiliary gasket is plugged into the second limiting groove of the fixed gasket, or the limiting strip of the auxiliary gasket is plugged into the first limiting groove of the adjacent auxiliary gasket.

[0019] In a feasible implementation, a first wide-mouth groove is provided at the outer end of the first limiting groove;

[0020] A second wide-mouth groove is provided at the outer end of the second limiting groove.

[0021] The embodiment of the present application provides an auxiliary device for disassembling a hollow fiber nozzle plate. By providing a screw thread on the outer wall of the first end of the screw, when removing the core needle, the screw is rotated to screw the screw thread into the inner wall of the core needle. The lifting rod includes a handle and a connecting rod. The first end of the connecting rod is detachably connected to the second end of the screw, and the extension direction of the handle is perpendicular to the extension direction of the connecting rod. The axes of the connecting rod and the screw are located in a straight line. The user holds the handle and pulls the lifting rod and the screw vertically upward to pull out the core needle, greatly avoiding bumps. This greatly improves the service life of the spinneret. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of the structure of the auxiliary device for disassembling the hollow fiber spray plate provided by the present application;

[0023] Figure 2 It is a structural diagram of the lifting rod;

[0024] Figure 3 It is a structural diagram of the screw;

[0025] Figure 4 It is a structural diagram of the fixed gasket;

[0026] Figure 5 It is a top view of the auxiliary gasket;

[0027] Figure 6 It is a bottom view of the auxiliary gasket;

[0028] Figure 7 It is a schematic diagram showing the auxiliary device in use.

[0029] Description of reference numerals:

[0030] 10-screw; 20-lifting rod; 30-fixing gasket; 40-auxiliary gasket;

[0031] 11-screw thread; 12-reverse grain; 21-handle; 22-connecting rod; 23-connecting hole; 31-first through hole; 32-incision; 33-second limiting groove; 34-second wide-mouth groove; 41-second through hole; 42-first arc-shaped piece; 43-second arc-shaped piece; 44-insertion hole; 45-insertion rod; 46-limiting strip; 47-first limiting groove; 48-first wide-mouth groove. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0033] Hollow fiber membrane spinnerets and core needles are key components used in the production of hollow fiber membranes. Hollow fiber membrane spinnerets typically feature feed and core liquid flow channels, which may also include nitrogen flow channels in thermal processes. During spinning, the feed and core liquids are injected through separate inlets of the hollow fiber membrane spinneret and pass through the specialized internal structure of the spinneret to form the hollow fiber membrane. The quality of these channels largely determines the quality of the hollow fiber membrane, such as eccentricity, yarn consistency, and yarn stability.

[0034] The core needle is a key part of the spinneret, and its function is to form the inner cavity of the hollow fiber during the spinning process. Different types of hollow fiber membrane spinnerets have different characteristics and application ranges. For example, C-shaped and pin-shaped spinnerets are arc-shaped slit spinnerets. After the melt is extruded through the arc-shaped slit of the spinneret, the arc-shaped melt expands and the ends bond to form a hollow cavity. The hollow fibers spun by double-ring and double-ring sleeve-shaped spinnerets have uniform inner and outer diameters and good concentricity, but it is difficult to make multi-hole spinnerets, and they are mostly used to spin single hollow fiber membranes.

[0035] During the spinning process of hollow fiber membranes, the feed liquid may shift after being extruded from the spinneret, causing varying degrees of fluctuation in the size and performance of the resulting membrane filaments. Therefore, cleaning the spinneret is unavoidable during testing. During disassembly, residual material inside can hinder smooth disassembly, and excessive force can damage the core needle. Existing spinneret core needle removal devices are slow and prone to bumping, shortening the lifespan of the spinneret.

[0036] The auxiliary device for disassembling the hollow fiber nozzle plate provided in the present application can pull out the core needle by vertically pulling the lifting rod and the screw rod upward, thereby avoiding bumps to a great extent and greatly improving the service life of the spinneret.

[0037] The specific structure of the hollow fiber spray plate disassembly auxiliary device provided in this application is described in detail below with reference to the accompanying drawings.

[0038] Reference Figure 1-Figure 7 As shown, the embodiment of the present application provides an auxiliary device for disassembling a hollow fiber spray plate, comprising a screw 10 and a lifting rod 20;

[0039] The screw rod 10 is a rod body, and has a first end and a second end opposite to each other. The outer wall of the first end of the screw rod 10 is provided with a screw thread 11, and the screw thread 11 of the screw rod 10 is screwed to the inner wall of the core needle to fix the screw rod 10 to the core needle.

[0040] The lifting rod 20 includes a handle 21 and a connecting rod 22. The connecting rod 22 has a first end and a second end relative to each other. The second end of the connecting rod 22 is fixed to the middle of the handle 21, and the extension direction of the handle 21 is perpendicular to the extension direction of the connecting rod 22. The handle 21 and the connecting rod 22 are T-shaped structures, and the first end of the connecting rod 22 is detachably connected to the second end of the screw rod 10.

[0041] An embodiment of the present application provides an auxiliary device for disassembling a hollow fiber nozzle plate, which provides a screw thread 11 on the outer wall of the first end of the screw rod 10. When disassembling the core needle, the screw rod 10 is rotated to make the screw thread 11 screwed to the inner wall of the core needle. The lifting rod 20 includes a handle 21 and a connecting rod 22. The first end of the connecting rod 22 is detachably connected to the second end of the screw rod 10, and the extension direction of the handle 21 is perpendicular to the extension direction of the connecting rod 22. The connecting rod 22 and the axis of the screw rod 10 are in the same straight line. The user holds the handle 21 and pulls the lifting rod 20 and the screw 10 vertically upward to pull out the core needle, which greatly avoids bumps and greatly improves the service life of the spinneret.

[0042] In some embodiments, the outer wall of the second end of the screw rod 10 is provided with a reverse groove 12, and the first end of the connecting rod 22 is provided with a connecting hole 23. The reverse groove 12 of the screw rod 10 is inserted into the connecting hole 23 of the connecting rod 22, thereby connecting the screw rod 10 to the lifting rod 20.

[0043] In some embodiments, the auxiliary device further includes a fixing spacer 30;

[0044] A first through hole 31 is provided in the middle of the fixing gasket 30, and the screw 10 is inserted into the first through hole 31 of the fixing gasket 30. The first end of the screw passes through the first through hole 31 of the fixing gasket 30 and is then connected to the core pin. The fixing gasket 30 is sleeved on the outside of the screw 10 to prevent the core pin from bumping left and right when lifted.

[0045] Reference Figure 1 As shown, in some embodiments, a cutout 32 is provided on the side of the fixing gasket 30 , and the cutout 32 is flat. The cutout 32 is designed to facilitate tool fixing or hand support.

[0046] In a feasible implementation, the auxiliary device further includes an auxiliary gasket 40;

[0047] A second through hole 41 is provided in the middle of the auxiliary gasket 40 , and the screw 10 is inserted into the second through hole 41 of the auxiliary gasket 40 . The lower surface of the fixing gasket 30 is in contact with the upper surface of the auxiliary gasket 40 .

[0048] When the core needle is loose, an auxiliary gasket 40 is added to the lower part of the fixed gasket 30 in time to keep the core needle in a vertical state when it is pulled out, without scratching the core needle and preventing the core needle from rubbing against the inside of the spray plate. One or more auxiliary gaskets 40 can be set as needed.

[0049] Further, such as Figure 5 and Figure 6 As shown, in some embodiments, the auxiliary gasket 40 includes a first arc-shaped piece 42 and a second arc-shaped piece 43, and the first arc-shaped piece 42 and the second arc-shaped piece 43 can be assembled into a complete circle;

[0050] The auxiliary gasket 40 is a split structure, including a first arc-shaped piece 42 and a second arc-shaped piece 43 , so that the auxiliary gasket 40 can be easily sleeved on the screw 10 .

[0051] In some embodiments, a socket 44 is provided on the side of the first arc-shaped piece 42 facing the second arc-shaped piece 43, and an insertion rod 45 matching the socket 44 is provided on the side of the second arc-shaped piece 43 facing the first arc-shaped piece 42. The insertion rod 45 of the second arc-shaped piece 43 is plugged into the socket 44 of the first arc-shaped piece 42, so that the sum of the first arc-shaped piece 42 and the second arc-shaped piece 43 forms a complete circular gasket.

[0052] In some embodiments, the upper surfaces of the first curved piece 42 and the second curved piece 43 are both provided with a limiting strip 46, and the lower surfaces of the first curved piece 42 and the second curved piece 43 are both provided with a first limiting groove 47. The two limiting strips 46 are arranged one-to-one opposite to the two first limiting grooves 47, and the extending direction of the limiting strips 46 is parallel to the extending direction of the insertion rod 45.

[0053] The limiting strip 46 of the auxiliary gasket 40 is plugged into the second limiting groove 33 of the fixed gasket 30 , or the limiting strip 46 of the auxiliary gasket 40 is plugged into the first limiting groove 47 of the adjacent auxiliary gasket 40 ;

[0054] When in use, the limiting strip 46 of the lower auxiliary gasket 40 is plugged into the first limiting groove 47 of the upper auxiliary gasket 40, thereby facilitating the connection of adjacent auxiliary gaskets 40;

[0055] Second limiting grooves 33 are provided on both sides of the lower surface of the fixed gasket 30, and the second limiting grooves 33 match the limiting strips 46. The limiting strips 46 of the lower auxiliary gasket 40 are plugged into the second limiting grooves 33 of the upper adjacent fixed gasket 30, thereby facilitating the connection between the auxiliary gasket 40 and the fixed gasket 30.

[0056] Furthermore, in some embodiments, a first wide-mouth groove 48 is provided at the outer end of the first limiting groove 47 , and the open end of the first wide-mouth groove 48 faces outward, thereby facilitating the insertion of the limiting strip 46 into the first limiting groove 47 ;

[0057] A second wide-mouth groove 34 is provided at the outer end of the second limiting groove 33 , and the wide-mouth end of the second wide-mouth groove 34 faces outward, so as to facilitate the limiting strip 46 to be inserted into the second limiting groove 33 .

[0058] According to the above technical features, the working principle of the hollow fiber spray plate disassembly auxiliary device provided by this application in actual application scenarios is as follows:

[0059] During the spinning process, it is inevitable that when cleaning the spinneret, it is difficult to remove the core needle easily due to the solidified residue inside. Once too much force is applied, the integrity of the core needle will be damaged. Therefore, through the upper and lower connections of the main screw and the circumferential fixation of the fixed gasket, the core needle can be protected and taken out vertically when lifted. One side of the fixed gasket is faceted, which can facilitate the stabilization of the gasket and allow other clamping tools to clamp the gasket. The special handle can be firmly connected to the reverse grain of the screw, which is convenient for operation and can apply force in the vertical direction, ultimately minimizing the damage to the core needle and extending the service life of the spinneret.

[0060] The specific operation method is as follows: when in use, the first end of the screw rod 10 passes through the first through hole 31 of the fixing washer 30 and is screwed to the inner wall of the core pin through the screw thread 11, so that the screw rod 10 is fixedly connected to the core pin; the connecting hole 23 of the lifting rod 20 is sleeved with the reverse thread 12 of the screw rod 10, so that the screw rod 10 and the lifting rod 20 are connected;

[0061] When the core needle is loose during lifting, an auxiliary gasket 40 is added to the lower part of the fixed gasket 30 in time, so that the core needle is always in a vertical state when pulled out, without scratching the core needle and preventing the core needle from rubbing against the inside of the spray plate.

[0062] This device can firmly fix the core needle by tightening the thread on the main screw, and the reverse thread on the other end is thicker and wider than the ordinary thread, which is convenient for operation and grasping. It can also be fixed with the interface at the lower end of the lifting rod. Using the lifting rod is more convenient and labor-saving. When using the main screw, a fixed gasket will be put on the outside to prevent the core needle from shaking left and right and scratching the inner wall during the lifting process. At the same time, there are two relatively thin gaskets for auxiliary fixing. With the help of the fixed gasket, the auxiliary gasket can be placed on the core needle after it is loosened, so that the core needle is always in a vertical position for removal, which greatly protects the core needle.

[0063] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on the several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the scope of protection of the present application.

[0064] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of protection of the embodiments of the present application.

Claims

1. A hollow fiber spray plate disassembly auxiliary device, characterized by: It comprises a screw rod (10) and a lifting rod (20); The outer wall of the first end of the screw rod (10) is provided with a screw thread (11), and the screw thread (11) of the screw rod (10) is screwed to the inner wall of the core needle; The lifting rod (20) includes a handle (21) and a connecting rod (22), the second end of the connecting rod (22) is fixed to the middle of the handle (21), and the extension direction of the handle (21) is perpendicular to the extension direction of the connecting rod (22), and the first end of the connecting rod (22) is detachably connected to the second end of the screw rod (10).

2. The auxiliary device for disassembling a hollow fiber spray plate according to claim 1, characterized in that: The outer wall of the second end of the screw rod (10) is provided with a reverse pattern (12), and the first end of the connecting rod (22) is provided with a connecting hole (23), and the reverse pattern (12) of the screw rod (10) is plugged into the connecting hole (23) of the connecting rod (22).

3. The auxiliary device for disassembling a hollow fiber spray plate according to claim 1, characterized in that: The auxiliary device further comprises a fixing gasket (30); A first through hole (31) is provided in the middle of the fixing gasket (30), and the screw rod (10) is inserted into the first through hole (31) of the fixing gasket (30).

4. The auxiliary device for disassembling a hollow fiber spray plate according to claim 3, characterized in that: A cutout (32) is provided on the side of the fixing gasket (30).

5. The auxiliary device for disassembling a hollow fiber spray plate according to claim 3, characterized in that: The auxiliary device further includes an auxiliary gasket (40); A second through hole (41) is provided in the middle of the auxiliary gasket (40), the screw (10) is inserted into the second through hole (41) of the auxiliary gasket (40), and the lower surface of the fixed gasket (30) is in contact with the upper surface of the auxiliary gasket (40).

6. The auxiliary device for disassembling a hollow fiber spray plate according to claim 5, characterized in that: The auxiliary gasket (40) comprises a first arc-shaped piece (42) and a second arc-shaped piece (43), and the first arc-shaped piece (42) and the second arc-shaped piece (43) can be assembled into a complete circle.

7. The auxiliary device for disassembling a hollow fiber spray plate according to claim 6, characterized in that: The first arc-shaped piece (42) is provided with an insertion hole (44) on the side facing the second arc-shaped piece (43), and the second arc-shaped piece (43) is provided with an insertion rod (45) matching the insertion hole (44) on the side facing the first arc-shaped piece (42). The insertion rod (45) of the second arc-shaped piece (43) is plugged into the insertion hole (44) of the first arc-shaped piece (42).

8. The auxiliary device for disassembling a hollow fiber spray plate according to claim 7, characterized in that: The upper surfaces of the first arc-shaped piece (42) and the second arc-shaped piece (43) are both provided with a limiting strip (46), and the lower surfaces of the first arc-shaped piece (42) and the second arc-shaped piece (43) are both provided with a first limiting groove (47), the two limiting strips (46) and the two first limiting grooves (47) are arranged one by one opposite to each other, and the extending direction of the limiting strips (46) is parallel to the extending direction of the insertion rod (45); Second limiting grooves (33) are provided on both sides of the lower surface of the fixing gasket (30); The limiting strip (46) of the auxiliary gasket (40) is plugged into the second limiting groove (33) of the fixed gasket (30), or the limiting strip (46) of the auxiliary gasket (40) is plugged into the first limiting groove (47) of the adjacent auxiliary gasket (40).

9. The auxiliary device for disassembling a hollow fiber spray plate according to claim 8, characterized in that: A first wide-mouth groove (48) is provided at the outer end of the first limiting groove (47); A second wide-mouth groove (34) is provided at the outer end of the second limiting groove (33).

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