Auxiliary lifting device for MBR (Membrane Bioreactor) membrane module without precipitation
By designing an auxiliary hoisting device for MBR membrane modules that does not require dewatering, and using rigid stainless steel support pipes and screws to form a triangular pyramid support, the problems of long drainage cycles and instability during the hoisting of MBR membrane modules were solved, achieving safe and fast hoisting and reducing transportation costs.
Patent Information
- Application Number
- CN202521124616.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-06-04
AI Technical Summary
The existing MBR membrane module hoisting process requires dewatering, which leads to long drainage cycles, affects production progress and makes drainage disposal difficult. In addition, the hoisting is highly unstable, with the risk of tilting and falling. Furthermore, the increased hoisting hole raises transportation costs.
Design an auxiliary hoisting device for MBR membrane modules to prevent rainwater from falling. It adopts four support pipes, screws, a top connecting sleeve, a locking nut, a limit nut, and a bottom connecting sleeve to form a spatial triangular pyramid support system. The hoisting point is located above the pool surface and is supported by hard stainless steel materials and screws to avoid rainwater falling.
It enables safe and rapid MBR membrane module hoisting under conditions of no precipitation, solves the problems of long drainage cycles and unstable hoisting, simplifies operation, and reduces transportation costs.
Smart Images
Figure CN223852046U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewage treatment technical field more specifically relates to a kind of MBR membrane group does not drop water auxiliary hoisting device. BACKGROUND
[0002] In order to better save land, save energy, sewage pool body pool depth often exceeds 5-6 meters deep, and MBR module total height is usually below 2.8 meters, when MBR module pollution is more serious, MBR membrane group is hoisted out from pool body to do offline cleaning to restore MBR membrane water flux. Since the height of MBR membrane group is much lower than the effective water depth of the pool, the water in the oxygen tank where MBR module is located needs to be lowered before the MBR membrane group is hoisted out through the hoisting hole. During the actual dewatering process, the pool capacity where MBR module is located is very large, and the volume actually needing to be dewatered is also very large. It greatly affects the effective operation of the sewage station.
[0003] Currently, there is no special MBR membrane group hoisting device without dewatering. When MBR membrane group needs to be hoisted for offline cleaning, the water level in MBR pool is lowered in advance to expose the MBR membrane group hoisting hole before hoisting and construction. The main disadvantages of MBR membrane pool dewatering include: 1. Long drainage period, affecting normal production and drainage. The volume of the oxygen tank where MBR membrane pool is located is very large. It needs to be lowered to about half the volume of the pool body to expose the MBR membrane group hoisting hole, which takes a very long time to pump and drain water. 2. The water to be pumped and drained has no place to go. It cannot be directly discharged, and there is no extra accident pool to temporarily store it. There is a problem of disposal of the drained water.
[0004] The measures taken in the actual operation of MBR membrane offline cleaning and hoisting are to fix stainless steel wire ropes in advance in the four hoisting holes of MBR membrane group and merge them into one hoisting hole leading to the pool surface. Due to insufficient strength of the wire ropes, MBR membrane group has a high risk of tilting and falling during hoisting due to unstable center of gravity.
[0005] The measures taken in the actual operation of MBR membrane offline cleaning and hoisting include directly increasing the height of MBR membrane group hoisting hole to lead to the pool surface when making MBR module. The disadvantages of this scheme are: 1. MBR membrane group is a standard industrial product, which needs to communicate and make MBR membrane group frame, and needs to repeatedly confirm technical parameters; 2. After the hoisting hole of MBR module is raised, the transportation volume is increased, which exceeds the size of conventional parts transportation, increasing the transportation cost.
[0006] Therefore, to provide a MBR membrane group dewatering auxiliary hoisting device with simple structure, high stability, which can realize quick mounting and dismounting with MBR membrane group, and realize MBR membrane offline cleaning and hoisting without the need for dewatering and drainage, is a problem that needs to be solved by those skilled in the art. Practical new content
[0007] In order to overcome the deficiencies of the prior art, the utility model aims at providing a MBR membrane group auxiliary hoisting device without water reduction, which is safe and reliable, high in stability and suitable for various MBR membrane racks.
[0008] In order to achieve the above object, the utility model provides the following technical scheme, mainly including:
[0009] A MBR membrane group auxiliary hoisting device without water reduction comprises four support pipes, a screw rod, top connecting sleeves, locking nuts, limiting nuts, bottom connecting sleeves, bolt nuts and an MBR membrane rack.
[0010] The upper and lower ends of the four support pipes are respectively welded and fixed with the top connecting sleeves and the bottom connecting sleeves.
[0011] The bottom connecting sleeves are installed on the MBR membrane rack through an MBR fixing bolt nut assembly.
[0012] The horizontally arranged screw rod penetrates the top connecting sleeves, and the top connecting sleeves are formed into a transverse limiting structure through an adjustable number of limiting nuts.
[0013] The top connecting sleeves are provided with locking nuts at both ends, and the locking nuts are provided with a reserved rope fixing section at the outer end.
[0014] Preferably, the four support pipes, the screw rod and the MBR membrane rack form a spatial triangular pyramid support system, which is kept in a working position above the pool surface as a whole, so as to realize the offline hoisting operation of the MBR membrane group under the condition of no water reduction.
[0015] Preferably, the number of limiting nuts between the top connecting sleeves is dynamically adjusted according to the width of the MBR membrane rack.
[0016] Preferably, the support pipes, the screw rod, the locking nuts and the limiting nuts are made of stainless steel, and the surfaces of the support pipes, the screw rod, the locking nuts and the limiting nuts are polished.
[0017] Preferably, the included angle between the support pipe and the screw rod ranges from 45° to 60°.
[0018] Preferably, the length of the reserved rope fixing section of the locking nut is not less than 3 cm, the hoisting device is installed on the reserved rope fixing section through a rope, and after the hoisting is completed, subsequent cleaning work is carried out.
[0019] Compared with the prior art, the above technical scheme has the following advantages:
[0020] 1. The pain point of MBR membrane offline cleaning and lifting is solved. There is no need to worry about the problem of too long drainage period affecting production progress, and there is no need to worry about the problem of drainage disposal. At the same time, the manual operation difficulty of MBR membrane offline cleaning and lifting is simplified.
[0021] 2. The four lifting holes of the hard stainless steel support pipe are gathered on a stainless steel screw rod and form a stable structure. Compared with the steel wire rope method, the center is more stable and the lifting is safer. And because it is a hard pipe support, it relies on its own strength and the support of the inclined support, which is located above the pool surface for a long time, and does not need the pool surface fixed anchor point of the steel wire rope, avoiding the risk of steel wire rope sliding off the pool.
[0022] 3. The structure is independent of the MBR membrane group, and can be matched with any MBR membrane group. The problem of ultra-wide and ultra-high transportation when the MBR membrane group is lifted is solved, and the problem of secondary non-standard design when the MBR membrane group is lifted is solved.
[0023] 4. The material is simple, only common stainless steel pipe, stainless steel screw rod and nut are used. It can be added and modified to any existing MBR membrane group. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.
[0025] Figure 1 It is a structural schematic diagram of the present application.
[0026] Figure 2 It is a structural schematic diagram of A part of the present application.
[0027] Figure 3 It is a structural schematic diagram of B part of the present application.
[0028] Figure 4 It is a structural schematic diagram of the side view of the present application.
[0029] Figure 5 It is a structural schematic diagram of C part of the present application.
[0030] Figure 6 It is a structural schematic diagram of D part of the present application.
[0031] Explanation of reference numerals in the attached drawings: 1-Support tube, 2-Screw, 3-Top connecting sleeve, 4-Locking nut, 5-Limiting nut, 6-Bottom connecting sleeve, 7-Bolt and nut, 8-Water tank, 9-MBR membrane frame. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Example
[0034] A non-drainage auxiliary hoisting device for MBR membrane modules, such as Figures 1 to 6 As shown, it includes four support tubes 1, screws 2, top connecting sleeves 3, locking nuts 4, limit nuts 5, bottom connecting sleeves 6, bolts and nuts 7, and an MBR membrane frame 9.
[0035] The upper and lower ends of the four support tubes 1 are welded and fixed to the top connecting sleeve 3 and the bottom connecting sleeve 6, respectively.
[0036] The bottom connecting sleeve 6 is installed on the MBR membrane frame 9 by the MBR fixing bolt and nut 7 assembly, with a bolt preload force ≥20kN to ensure no displacement during hoisting;
[0037] The horizontally arranged screw 2 passes through the top connecting sleeve 3, and the top connecting sleeves 3 are connected by an adjustable number of limiting nuts 5 to form a lateral limiting structure.
[0038] The top connecting sleeve 3 is equipped with locking nuts 4 at both ends, and the outer end of the locking nuts 4 is reserved for rope fixing.
[0039] To further optimize the above scheme, the four support pipes 1, screws 2 and MBR membrane frame 9 form a spatial triangular pyramid support system, which keeps the whole working position suspended above the pool surface, realizing offline hoisting operation of MBR membrane module under no-water-fall conditions.
[0040] To further optimize the above scheme, the number of limiting nuts 5 between the top connecting sleeves 3 is dynamically adjusted according to the width of the MBR membrane frame 9.
[0041] To further optimize the above solution, the support tube 1, screw 2, locking nut 4 and limiting nut 5 are made of stainless steel, and the surfaces of the support tube 1, screw 2, locking nut 4 and limiting nut 5 are polished to improve their resistance to sewage corrosion.
[0042] In order to further optimize the above scheme, the included angle between the support pipe 1 and the screw rod 2 is 50°.
[0043] In order to further optimize the above scheme, the reserved rope fixing section length of the locking nut 4 is not less than 3cm, the hoisting device is installed on the reserved rope fixing section through a rope, and after hoisting is completed, subsequent cleaning work is carried out.
[0044] Working principle: the MBR membrane group non-water reduction auxiliary hoisting device adopts a screw rod 2 to form two groups of triangular stable support structures in series with sleeves, and finally realizes a stable hard support in the form of a triangular pyramid, the hoisting point of the MBR membrane group is lifted above the pool surface, and the MBR membrane group can be cleaned offline without water reduction.
[0045] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.
[0046] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A MBR membrane pack non-water assisted hoisting device, characterized in that, It comprises four support tubes (1), screw rods (2), top connecting sleeves (3), locking nuts (4), limiting nuts (5), bottom connecting sleeves (6), bolt nuts (7) and MBR membrane racks (9); The upper and lower ends of the four support tubes (1) are respectively welded and fixed with the top connecting sleeves (3) and the bottom connecting sleeves (6); The bottom connecting sleeves (6) are installed on the MBR membrane racks (9) through the MBR fixing bolt nut (7) assembly; The horizontally arranged screw rods (2) penetrate the top connecting sleeves (3), and the top connecting sleeves (3) are formed into a transverse limiting structure through an adjustable number of limiting nuts (5) therebetween; The top connecting sleeves (3) are provided with locking nuts (4) at both ends, and the outer ends of the locking nuts (4) are reserved for rope fixing sections.
2. The MBR membrane module hoisting device without water drop according to claim 1, characterized in that, The four support tubes (1), screw rods (2) and MBR membrane racks (9) form a spatial triangular pyramid support system, which is kept in a suspended working position above the pool surface, and realizes the off-line hoisting operation of the MBR membrane group under the condition of no water lowering.
3. The MBR membrane module hoisting device without water drop according to claim 1, characterized in that, The number of limiting nuts (5) between the top connecting sleeves (3) is dynamically adjusted according to the width of the MBR membrane rack (9).
4. The MBR membrane pack non-water assisted hoisting device according to claim 1, characterized in that, The support tubes (1), screw rods (2), locking nuts (4) and limiting nuts (5) are made of stainless steel, and the surfaces of the support tubes (1), screw rods (2), locking nuts (4) and limiting nuts (5) are polished.
5. The MBR membrane pack non-water assisted hoisting device according to claim 1, characterized in that, The included angle between the support tube (1) and the screw rod (2) ranges from 45° to 60°.
6. The MBR membrane pack non-water assisted hoisting device according to claim 1, characterized in that, The length of the reserved rope fixing section of the locking nut (4) is not less than 3 cm, the hoisting device is installed on the reserved rope fixing section through a rope, and after hoisting is completed, subsequent cleaning work is carried out.