Rotary membrane module limiting device and membrane device with same

Abstract

The utility model discloses a rotary membrane module limiting device and a membrane device with the same. The rotary membrane module limiting device comprises a fixing piece, a rotary limiting piece and a locking piece, and the fixing piece is fixedly arranged adjacent to the membrane module device. The rotation limiting piece is rotatably connected to the fixing piece, and the rotation stroke of the rotation limiting piece comprises a blocking position located above the membrane module device. The locking piece is detachably connected to the upper end of the rotation limiting piece and the fixing piece and used for unlocking and locking the rotation movement of the rotation limiting piece relative to the fixing piece so that the rotation limiting piece can be locked or disengaged from the blocking position. According to the invention, the membrane module device can be lifted and cleaned without lowering the liquid level, so that the efficient cleaning of the membrane module device is facilitated.

Description

Technical Field

[0001] The present disclosure relates to the field of water treatment, and in particular to a rotary membrane module limiting device and a membrane device having the limiting device. Background Art

[0002] In the water treatment industry, membrane technology is becoming more and more popular, and membrane modules are being used more and more widely. When the membrane module is aerated in water, the impact of the aerated gas-water mixture on the membrane module makes it easy for the membrane module to float in the water, causing wear and tear, and also causing the connected pipes to be pulled or even damaged. Therefore, the membrane module generally has a limit device to prevent it from floating up, so that the membrane module will not float up. However, due to the product characteristics of the membrane module itself, the membrane module needs to be regularly lifted from the water and cleaned offline before being put back into the membrane pool filled with water.

[0003] In the above process, when the membrane module is lifted from the water, its limiting device, such as the clamp or bolt that fixes the membrane module to the fixed object, needs to be removed to release the limiting state of the membrane module. However, due to the product characteristics of the membrane module itself, the membrane module needs to be at a certain water surface depth to operate normally, so the limiting device of the membrane module is usually located below the water surface. Therefore, when removing the limiting device, it is often necessary to arrange in advance that the entire membrane pool stops producing water and then lower the water level in the membrane pool to below its limiting device, and then manually disassemble the limiting device, which makes it inconvenient to lift and clean the membrane module, which is time-consuming and labor-intensive, and makes the water production of the membrane module in the membrane pool easily affected, which will increase the water production pressure of the water plant and even cause environmental accidents.

[0004] In addition, since the membrane pool is in a closed state for a long time, a large amount of harmful gases are formed in the membrane pool, and there is a lot of garbage in the membrane pool, and the working environment is poor. Therefore, after the liquid level is lowered, when the operator directly enters the membrane pool to disassemble it, the operator's health is easily affected and accidents are prone to occur. Summary of the invention

[0005] One advantage of the present disclosure is that it provides a rotary membrane module limiting device and a membrane device having the limiting device, so that the membrane module can be lifted and cleaned without lowering the liquid level, which is conducive to efficient cleaning of the membrane module.

[0006] The rotary membrane module limiting device disclosed in the present invention comprises at least one rotary limiting assembly, wherein the rotary limiting assembly comprises: a fixing member, which is fixedly arranged adjacent to the membrane module; a rotary limiting member, which is rotatably connected to the fixing member, and the rotary stroke of the rotary limiting member includes a blocking position located above the membrane module; and a locking member, which is detachably connected to the upper end of the rotary limiting member and the fixing member, respectively, and is used to unlock and lock the rotary movement of the rotary limiting member relative to the fixing member, so that the rotary limiting member can be locked or disengaged from the blocking position.

[0007] According to an embodiment of the present disclosure, a blocking member extending in the transverse direction is provided at the lower end of the rotation limiter for abutting against the top of the membrane module.

[0008] According to an embodiment of the present disclosure, the rotation limiting member can be rotatably connected to the fixing member around a vertical axis.

[0009] According to one embodiment of the present disclosure, it includes: a fixed shaft extending vertically; at least one fixed arm provided on the fixed shaft and extending horizontally, and located on opposite sides of the fixed shaft with the membrane module, the rotation limiter being at least partially provided above the fixed arm; and at least one connecting pin extending vertically and passing downward through the rotation limiter and the fixed arm.

[0010] According to an embodiment of the present disclosure, the rotation limiter includes: a rotation axis extending vertically; and at least one rotation frame rotatably disposed on the fixing member and forming an avoidance groove suitable for avoiding the fixing member.

[0011] According to an embodiment of the present disclosure, there are two rotary limit stop assemblies, and the two rotary limit stop assemblies are arranged on opposite sides of the membrane module.

[0012] According to an embodiment of the present disclosure, the locking member includes a locking threaded member.

[0013] According to one embodiment of the present disclosure, the locking member includes: a U-shaped bolt, which is sleeved on the outside of the fixing member and passes through the rotation limit member; and a first nut and a second nut, which are threadedly engaged with the protruding portion of the U-shaped bolt to lock the rotation limit member to the fixing member.

[0014] The present disclosure also provides a membrane device, comprising the rotary membrane module limiting device as described above and the membrane module.

[0015] According to an embodiment of the present disclosure, at least one sliding recessed hole with a side surface open is formed on the side of the membrane module, and at least a portion of the fixing member extends vertically and the portion is disposed in the sliding recessed hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the rotary membrane module limiting device of the embodiment of the present disclosure when limiting the membrane module.

[0017] Figure 2 It is a schematic structural diagram of the rotary membrane module limiting device of the embodiment of the present disclosure when releasing the limiting of the membrane module.

[0018] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0019] Figure 4 yes Figure 1 Schematic diagram of the enlarged portion B.

[0020] 100. Rotary limiter assembly;

[0021] 10. Fixing piece; 11. Fixing shaft; 12. Fixing arm; 13. Connecting pin;

[0022] 20. Rotation limiter; 21. Rotation axis; 22. Rotation frame; 2201. Avoidance groove; 23. Blocking member;

[0023] 30. Locking member; 31. U-shaped bolt; 32. First nut; 33. Second nut;

[0024] 900, membrane assembly; 901, sliding recess. DETAILED DESCRIPTION

[0025] The following description is used to disclose the present disclosure so that those skilled in the art can implement the present disclosure. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations. The basic principles of the present disclosure defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present disclosure.

[0026] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0027] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0028] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0029] Figure 1 Schematic diagram of the structure of the rotary membrane module limiting device of the embodiment of the present disclosure when limiting the membrane module 900. Figure 1 The rotary membrane module limiting device of the embodiment of the present disclosure includes at least one rotary limiting assembly 100. The rotary limiting assembly 100 is used to limit the membrane module 900 when the membrane module 900 treats the sewage in the membrane pool, so as to prevent the membrane module 900 from floating up during normal operation.

[0030] Figure 2 Schematic diagram of the structure of the rotary membrane module limiting device of the embodiment of the present disclosure when the membrane module 900 is released from the limiting position. Figure 2 The rotary limiting assembly 100 is also used to release the limiting of the membrane module 900 when the membrane module 900 needs to be lifted for cleaning, so that the membrane module 900 can be lifted smoothly.

[0031] Optionally, there are two rotating stopper assemblies 100, and the two rotating stopper assemblies 100 are arranged on opposite sides of the membrane assembly 900. Thus, the rotating stopper assemblies 100 can stop the membrane assembly 900 from opposite sides of the membrane assembly 900, and the stopping effect on the membrane assembly 900 is good. Of course, there can also be one rotating stopper assemblies 100, and one rotating stopper assemblies 100 can also stop the membrane assembly 900.

[0032] Each of the rotation limiting assemblies 100 includes a fixing member 10 , a rotation limiting member 20 and a locking member 30 .

[0033] The fixing member 10 is fixedly arranged adjacent to the membrane module 900. Therefore, when the membrane module 900 is arranged in a membrane pool filled with sewage and the sewage in the membrane pool is treated, the fixing member 10 can be fixedly arranged in the membrane pool and located adjacent to the membrane module 900.

[0034] The rotation stopper 20 is rotatably connected to the fixing member 10, and the rotation stroke of the rotation stopper 20 includes a blocking position located above the membrane module 900 (i.e., in a position such as Figure 1 That is, when the rotation limiter 20 rotates relative to the fixing member 10, the lower end of the rotation limiter 20 can rotate to a blocking position above the membrane module 900.

[0035] The locking member 30 is detachably connected to the upper end of the rotation limit member 20 and the fixing member 10, respectively, and is used to unlock and lock the rotational movement of the rotation limit member 20 relative to the fixing member 10, so that the rotation limit member 20 can be locked or disengaged from the blocking position.

[0036] Thus, when the rotation limiter 20 is located at the blocking position (i.e. Figure 1 The locking member 30 is connected between the upper end of the rotation limit member 20 and the fixing member 10, and the locking member 30 can lock the rotation limit member 20 to the fixing member 10, so that the rotation limit member 20 can be maintained in the blocking position, and the lower end of the rotation limit member 20 can prevent the membrane module 900 from moving upward, thereby limiting the floating of the membrane module 900.

[0037] When the membrane module 900 needs to be lifted for cleaning, the operator can disassemble the locking member 30 in an operating environment outside the liquid surface, such as on the bank of the membrane pool, so as to release the locking state between the rotation limiter 20 and the fixing member 10, so that the rotation limiter 20 can be rotated out of the blocking position (i.e., Figure 1 Switch the position shown to Figure 2 The position shown in the figure) is no longer blocked from moving upwards of the membrane module 900, and thus, the operator can operate the lifting device to lift the membrane module 900, so that the membrane module 900 is at least partially moved upwards to above the liquid level of the membrane pool, thereby making it convenient for the lifted membrane module 900 to be flushed offline.

[0038] Figure 3 yes Figure 2 A magnified schematic diagram of part A in Figure 2. Figure 1 and Figure 3 , the fixing member 10 includes a fixing shaft 11 and at least one fixing arm 12. The fixing shaft 11 extends vertically. The fixing arm 12 is arranged on the fixing shaft 11 and extends horizontally, and is located on two opposite sides of the fixing shaft 11 with the membrane module 900. The rotation stopper 20 is rotatably arranged on the fixing arm 12. Therefore, when the rotation stopper 20 avoids the membrane module 900, the rotation stopper 20 can rotate to a position horizontally aligned with the fixing arm 12 (i.e., Figure 3As shown in the position, since the fixed arm 12 and the membrane module 900 are located on opposite sides of the fixed member 10, when the rotation limiter 20 is rotated to a position horizontally aligned with the fixed arm 12, the rotation limiter 20 and the membrane module 900 are located on opposite sides of the fixed member 10, and the rotation limiter 20 can avoid the membrane module 900 to the greatest extent.

[0039] Optionally, there are multiple fixing arms 12, and the multiple fixing arms 12 are arranged at intervals along the vertical direction. Specifically, there are two fixing arms 12, and the two fixing arms 12 are arranged at intervals along the vertical direction. Thus, the connection between the fixing member 10 and the rotation limiting member 20 is highly secure.

[0040] Optionally, the fixing member 10 further includes at least one connecting pin 13. The rotation limiting member 20 is at least partially disposed above the fixing arm 12, and the connecting pin 13 passes downward through the rotation limiting member 20 and the fixing arm 12. Specifically, there are a plurality of connecting pins 13, and the plurality of connecting pins 13 are disposed in a one-to-one correspondence with the plurality of fixing arms 12. Thus, the rotation limiting member 20 realizes a rotatable connection with the fixing arm 12, and the connection and disassembly are convenient.

[0041] Optionally, the rotation limiter 20 can be connected to the fixing member 10 rotatably around a vertical axis. Thus, when the rotation limiter 20 limits the membrane module 900, the rotation limiter 20 can rotate in a horizontal plane to at least partially be located on the same side of the fixing member 10 as the membrane module 900, thereby blocking the membrane module 900 and limiting the upward movement of the membrane module 900. When the rotation limiter 20 needs to be released from the blocking position, the rotation limiter 20 can rotate in a horizontal plane to a position on both sides of the fixing member 10 opposite to the membrane module 900, thereby avoiding space for the membrane module 900 to move vertically upward, so that the membrane module 900 can be smoothly lifted later.

[0042] In addition, compared with the rotation around the horizontal axis, the rotation around the vertical axis allows the upper end of the rotation limit member 20 to always be above the liquid level, thereby allowing the locking member 30 provided at the upper end of the rotation limit member 20 to always be above the liquid level, thereby facilitating operation above the liquid level and releasing the locking state of the locking member 30.

[0043] Optionally, a blocking member 23 extending horizontally is provided at the lower end of the rotation limiting member 20 for abutting against the upper part of the membrane unit 900. Thus, when the rotation limiting member 20 blocks the upward floating of the membrane unit 900, the contact area between the rotation limiting member 20 and the membrane unit 900 is large, so that the rotation limiting member 20 is convenient to press the membrane unit 900, and the limiting and blocking effect of the rotation limiting member 20 is good.

[0044] Optionally, the rotation limiting member 20 is formed with an avoidance groove 2201 adapted to avoid the fixing member 10. Specifically, the avoidance groove 2201 is in a C shape or a U shape, and the rotated avoidance groove 2201 is within the avoidance groove 2201 in a C shape or a U shape.

[0045] Thus, during the rotation of the rotation limiting member 20, through the avoidance groove 2101, the rotation limiting member 20 can avoid the fixing member 10, and it can be ensured that the rotated rotation limiting member 20 can reach the predetermined position where the membrane unit 900 can be pressed, ensuring the limiting reliability and stability of the rotated rotation limiting member 20 to the membrane unit 900. Especially when two of the rotary limiting assemblies 100 are symmetrically distributed on opposite sides of the membrane unit 900, the above setting enables the two sides of the membrane unit 900 to be symmetrically stressed, ensuring the relative balance of the overall stress of the membrane unit 900.

[0046] Optionally, the rotation limiting member 20 includes a rotation shaft 21 and at least one rotation frame 22. The rotation shaft 21 extends vertically. The rotation frame 22 is rotatably connected to the fixed arm 12 and forms the avoidance groove 2201.

[0047] Optionally, there are multiple rotation frames 22, and the multiple rotation frames 22 are arranged in one-to-one correspondence with the multiple fixed arms 12. Specifically, as an example, there are two rotation frames 22, and the two rotation frames 22 are arranged corresponding to the two fixed arms 12. Thus, the connection firmness between the fixing member 10 and the rotation limiting member 20 is high.

[0048] Figure 4 Yes Figure 1 is an enlarged schematic view of part B. Refer to Figure 1 and Figure 4 The locking member 30 includes a locking threaded member. Thus, when the locking threaded member is respectively connected to the upper end of the rotation limiting member 20 and the fixing member 10, the rotation limiting member 20 is locked to the fixing member 10. When the locking threaded member is disassembled from the rotation limiting member 20 and the fixing member 10, the rotation limiting member 20 is unlocked from the fixing member 10. The disassembly and assembly operation of the locking threaded member 30 is simple, the cost is low, and it is convenient for maintenance.

[0049] Optionally, the locking screw is configured as a U-shaped screw. Specifically, the locking screw includes a U-shaped bolt 31, a first nut 32, and a second nut 33. The U-shaped bolt 31 is sleeved outside the fixing member 10 and passes through the rotation limiter 20. The first nut 32 and the second nut 33 are threadedly engaged with the passing portion of the U-shaped bolt 31 to lock the rotation limiter 20 to the fixing member 10.

[0050] It is worth mentioning that since the locking member 30 is arranged at the upper end of the rotation limit member 20 and is not directly connected to or in contact with the membrane module 900, when the membrane module 900 is below the liquid level, the locking member 30 can be above the liquid level instead of being below the liquid level.

[0051] Therefore, the rotary membrane module limiting device of the embodiment of the present disclosure allows the membrane module 900 to be lifted and cleaned without lowering the liquid level, which is beneficial to the efficient cleaning of the membrane module 900.

[0052] See also Figure 1 The embodiment of the present disclosure also provides a membrane device, which includes the rotary membrane module limiting device as described above and the membrane module 900.

[0053] Therefore, when the membrane module 900 is immersed in sewage to treat sewage, the rotation limiter 20 can limit the membrane module 900 when locked by the locking member 30, thereby limiting the floating movement of the membrane module 900 in normal operation, avoiding wear of the membrane module 900 and pulling damage to the pipeline connected to the membrane module 900.

[0054] When the membrane module 900 needs to be lifted upward to at least partially remove the sewage for cleaning, the operator can first remove the locking member 30 located outside the sewage, so that the rotation limit member 20 rotates out of the original position, and a vertical space is avoided for the membrane module 900 to be lifted upward, thereby allowing the membrane module 900 to move upward. As a result, the lifting of the membrane module 900 will no longer be blocked, and the membrane module 900 can be lifted smoothly for cleaning.

[0055] Therefore, the rotary membrane module limiting device of the embodiment of the present disclosure can release the limiting state of the membrane module 900 without lowering the liquid level and without underwater operation, and can be lifted for cleaning, which is conducive to efficient cleaning of the membrane module 900.

[0056] Optionally, at least one sliding recessed hole 901 with a side opening is formed on the side of the membrane module 900, and at least part of the fixing member 10 extends vertically and is disposed in the sliding recessed hole 901. Specifically, the membrane module 900 forms a plurality of sliding recessed holes 901, and the plurality of sliding recessed holes 901 are arranged at intervals along the vertical direction, and the vertically extending part of the fixing member 10, i.e., the fixing shaft 11, is disposed in the plurality of sliding recessed holes 901. Thus, when the membrane module 900 is hoisted, the fixing member 10 can guide and limit the hoisted membrane module 900, thereby limiting the floating of the membrane module 900 in the horizontal direction during the hoisting process, and ensuring smooth hoisting of the membrane module 900.

[0057] It should be understood by those skilled in the art that the embodiments of the present disclosure described above and shown in the accompanying drawings are only examples and do not limit the present disclosure. The advantages of the present disclosure have been fully and effectively realized. The functions and structural principles of the present disclosure have been demonstrated and explained in the embodiments, and the embodiments of the present disclosure may be deformed or modified in any way without departing from the principles.

Claims

1. The rotary membrane module limiting device is characterized by: The invention comprises at least one rotary stop assembly, wherein the rotary stop assembly comprises: A fixing member, for fixing and setting adjacent to the membrane module; a rotation stopper, rotatably connected to the fixing member, wherein the rotational travel of the rotation stopper includes a blocking position located above the membrane module; and The locking member is detachably connected to the upper end of the rotation limit member and the fixing member, and is used to unlock and lock the rotational movement of the rotation limit member relative to the fixing member, so that the rotation limit member can be locked or disengaged from the blocking position.

2. The rotary membrane module limiting device according to claim 1 is characterized in that: A blocking member extending in the transverse direction is provided at the lower end of the rotation limiting member, and is used to abut against the top of the membrane module.

3. The rotary membrane module limiting device according to claim 1, characterized in that: The rotation limiting member is rotatably connected to the fixing member around a vertical axis.

4. The rotary membrane module limiting device according to claim 3 is characterized in that: include: A fixed axis extending in the vertical direction; At least one fixed arm is disposed on the fixed shaft and extends in the transverse direction and is located on two opposite sides of the fixed shaft with the membrane module, and the rotation limiter is at least partially disposed above the fixed arm; and At least one connecting pin extends vertically and passes downward through the rotation limiting member and the fixed arm.

5. The rotary membrane module limiting device according to claim 3 is characterized in that: The rotation limiting member comprises: a rotation axis extending vertically; and At least one rotating frame is rotatably disposed on the fixing member and forms an escape groove suitable for avoiding the fixing member.

6. The rotary membrane module limiting device according to claim 1, characterized in that: There are two rotary limiter assemblies, and the two rotary limiter assemblies are arranged on opposite sides of the membrane module.

7. The rotary membrane module limiting device according to claim 1, characterized in that: The locking member includes a locking threaded member.

8. The rotary membrane module limiting device according to claim 1, characterized in that: The locking member comprises: A U-shaped bolt is sleeved on the outside of the fixing member and passes through the rotation limiting member; and The first nut and the second nut are threadedly engaged with the protruding portion of the U-shaped bolt to lock the rotation limiter to the fixing member.

9. A membrane device, characterized in that It comprises the rotary membrane module limiting device as claimed in any one of claims 1 to 8 and the membrane module.

10. The membrane device according to claim 9, characterized in that At least one sliding recessed hole with a side surface open is formed on the side of the membrane module, and at least a portion of the fixing member extends vertically and the portion is arranged in the sliding recessed hole.

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