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CN-121972009-A - Multi-channel filtering membrane bag

CN121972009ACN 121972009 ACN121972009 ACN 121972009ACN-121972009-A

Abstract

The invention relates to the technical field of membrane separation, and discloses a multi-channel filtering membrane package which comprises a membrane package main body, wherein the membrane package main body at least comprises a first functional unit, a material channel layer and a second functional unit which are sequentially stacked along the thickness direction, the first functional unit comprises two first functional membrane layers which are oppositely arranged and a first supporting and guiding layer which is positioned in the middle, the first functional unit is formed by pre-welding, the second functional unit comprises two second functional membrane layers which are oppositely arranged and a second supporting and guiding layer which is positioned in the middle, the second functional unit is formed by pre-welding, and the first functional unit, the material channel layer and the second functional unit are provided with mutually aligned communicating hole sites and are connected in a sealing mode through peripheries to form an integral membrane package structure, so that different functional membrane layers and material flowing areas form an integrated structure, and multiple processing processes such as filtering, concentration, cleaning or gas transmission are facilitated in the same membrane package, and the functional integration level of a membrane assembly is improved.

Inventors

  • FAN WENBO
  • WEI QIANQIAN

Assignees

  • 苏州膜佰特过滤科技有限公司

Dates

Publication Date
20260505
Application Date
20260325

Claims (9)

  1. 1. The multi-channel filtering membrane bag is characterized by comprising a membrane bag main body, wherein the membrane bag main body at least comprises a first functional unit, a material channel layer and a second functional unit which are sequentially stacked along the thickness direction; the first functional unit comprises two first functional film layers which are oppositely arranged and a first supporting and flow guiding layer positioned in the middle, and is formed by welding in advance; The second functional unit comprises two second functional film layers which are oppositely arranged and a second supporting and guiding layer positioned in the middle, and the second functional unit is formed by welding in advance; the first functional unit, the material channel layer and the second functional unit are provided with mutually aligned communication hole sites and are connected through peripheral sealing to form an integral membrane package structure.
  2. 2. A multi-channel filtration membrane pack as claimed in claim 1 wherein said material channel layer is a mesh-like flow guiding structure layer, a spacer support layer or a screen layer.
  3. 3. A multi-channel filtration membrane pack as claimed in claim 1 wherein said first functional unit and said second functional unit are each formed by ultrasonic welding or hot melt welding such that said first functional unit and said second functional unit are prefabricated modules.
  4. 4. A multi-channel filtration membrane pack as claimed in claim 1 wherein said communicating holes are provided at both ends of each layer of said membrane pack body, and each of said communicating holes in the corresponding layer is aligned and communicated in a thickness direction to form fluid passages respectively corresponding to different fluids.
  5. 5. A multi-channel filtration membrane pack as claimed in claim 4 wherein said communicating apertures are formed in respective layers of a first functional passage, a material passage and a second functional passage; the first functional passage is communicated with the first functional unit, the material passage is communicated with the material channel layer, and the second functional passage is communicated with the second functional unit.
  6. 6. A multi-channel filtration membrane pack as claimed in claim 1 wherein said first and second functional membrane layers are hydrophilic membranes, said first functional passage is for introducing an auxiliary liquid, and said second functional passage is for removing filtrate to enable the target material in said material passage to be cleaned and purified during concentration.
  7. 7. A multi-channel filtration membrane pack as claimed in claim 1 wherein said first functional membrane layer is a hydrophobic membrane and said second functional membrane layer is a hydrophilic membrane; The first functional passage is used for vacuumizing, the second functional passage is used for guiding out filtrate so as to remove gas in the target material in the filtering process, or the first functional passage is used for introducing gas, and the second functional passage is used for guiding out filtrate so as to improve the gas content in the filtrate in the filtering process.
  8. 8. A multi-channel filtration membrane pack as claimed in claim 1 wherein said membrane pack body comprises at least two sets of said first and second functional units, said first and second functional units being alternately arranged, and said material channel layers being disposed between adjacent functional units.
  9. 9. The multi-channel filtering membrane package as claimed in claim 5, wherein each layer of the main body of the membrane package is provided with a plurality of groups of communication holes which are uniformly arranged, and each functional unit and each material channel layer are selectively communicated with different groups of communication holes respectively, so that the fluid passages are distributed in a staggered manner in the thickness direction of the main body of the membrane package.

Description

Multi-channel filtering membrane bag Technical Field The invention belongs to the technical field related to filtering membranes, and particularly relates to a multi-channel filtering membrane package. Background The membrane separation technology is widely applied to the fields of biological pharmacy, fine chemical engineering, food processing, environmental protection treatment and the like, and is used for realizing the technical processes of filtering, concentrating, purifying, gas-liquid separation and the like of materials. In practical application, a membrane assembly or a membrane package structure is often adopted to combine the membrane and the diversion layer to form a filter unit, and the treatment efficiency and flux are improved in a multi-layer superposition mode. The existing membrane package structure is generally formed by assembling a plurality of layers of membranes and a supporting and guiding structure on site, all the functional layers are connected in a simple stacking or integral compacting mode, the structural integration level is low, and the arrangement form among different fluid channels is single. When multiple functions such as material filtration, cleaning and purification or gas transmission are required to be realized in the same membrane package, the functions are often required to be realized through an external pipeline or a plurality of membrane assemblies, so that the equipment is complex in structure, large in occupied space, difficult to control in fluid path and poor in assembly consistency. In addition, the existing membrane package is mostly in a single-channel or regular repeated-channel structure in the aspect of fluid passage design, and the flow paths of different functional fluids are difficult to flexibly arrange according to process requirements, so that multichannel collaborative filtering treatment is not facilitated to be realized in a limited space, and the integration degree and the treatment efficiency of a membrane assembly are limited to a certain extent. Therefore, how to provide a filtering membrane package structure with high structural integration, flexible arrangement of fluid passages and capability of realizing various filtering or mass transfer functions in the same membrane package is a technical problem to be solved in the art. Disclosure of Invention The present invention provides a multi-channel filtration membrane pack for overcoming the above-mentioned drawbacks of the prior art. The invention discloses a multi-channel filtering membrane package, which is characterized by comprising the following specific technical means: the multi-channel filtering membrane package comprises a membrane package main body, wherein the membrane package main body at least comprises a first functional unit, a material channel layer and a second functional unit which are sequentially stacked along the thickness direction; the first functional unit comprises two first functional film layers which are oppositely arranged and a first supporting and flow guiding layer positioned in the middle, and is formed by welding in advance; The second functional unit comprises two second functional film layers which are oppositely arranged and a second supporting and guiding layer positioned in the middle, and the second functional unit is formed by welding in advance; the first functional unit, the material channel layer and the second functional unit are provided with mutually aligned communication hole sites and are connected through peripheral sealing to form an integral membrane package structure. According to a further technical scheme, the material channel layer is a net-shaped flow guide structure layer, a spacing supporting layer or a filter screen layer. According to a further technical scheme, the first functional unit and the second functional unit are formed by ultrasonic welding or hot-melt welding, so that the first functional unit and the second functional unit become prefabricated modules. According to a further technical scheme, the communication holes are arranged at two ends of each layer of the membrane package main body, and the communication holes in the corresponding layers are in alignment communication along the thickness direction so as to form fluid passages respectively corresponding to different fluids. According to a further technical scheme, the communication holes are respectively formed in the corresponding layers, namely a first functional passage, a material passage and a second functional passage; the first functional passage is communicated with the first functional unit, the material passage is communicated with the material channel layer, and the second functional passage is communicated with the second functional unit. According to a further technical scheme, the first functional membrane layer and the second functional membrane layer are hydrophilic membranes, the first functional passage is used for introducing auxiliary liquid,