A high strength membrane shell structure

Abstract

The utility model discloses a high -strength membrane shell structure, including membrane shell body, the both ends of membrane shell body are equipped with the cover, the membrane shell body is multilayer nested structure, and is support layer, reinforcing layer and protection layer respectively from inside to outside, the inside of support layer is equipped with a plurality of axial distribution's support muscle, and forms the flow guide groove between adjacent support muscle, the reinforcing layer is the grid -like structure, and is formed by the intertexture of different direction's reinforcing rib, the outside of protection layer is equipped with a plurality of even distribution's reinforcing ring, the utility model discloses the membrane shell body is set to multilayer nested structure, sets up the support muscle in the support layer, can be used to enhance the strength of self, the reinforcing layer can effectively disperse the pressure that membrane shell received, has improved the compression resistance of membrane shell greatly, the reinforcing ring on protection layer can enhance the overall strength of outer layer protective shell, prevents the damage of membrane shell from the external force impact in the transportation, installation and use process.

Description

Technical Field

[0001] This utility model relates to the field of ultrafiltration membrane technology, and in particular to a high-strength membrane shell structure. Background Technology

[0002] Ultrafiltration membranes have wide applications in many fields such as water purification and solution separation. In an ultrafiltration system, the membrane housing, as a key component supporting the ultrafiltration membrane, directly affects the membrane's performance and lifespan. Traditional membrane housings, in order to achieve high strength to withstand the pressure of system operation, often rely excessively on the inherent properties of the materials themselves, such as using high-strength metals or special engineering plastics.

[0003] However, high-strength materials are typically expensive, significantly increasing the manufacturing cost of the membrane housing and consequently raising the overall investment cost of the ultrafiltration system. Furthermore, some high-strength materials are difficult to process, requiring specialized techniques and equipment. This not only raises the production threshold but may also introduce defects during processing, affecting the quality of the membrane housing. In addition, some materials may be affected by environmental factors such as corrosion and aging during long-term use, leading to a decrease in strength and making them unable to meet the requirements for long-term stable operation of the ultrafiltration system. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a high-strength membrane shell structure that exhibits excellent strength and stability, and a long service life.

[0005] Therefore, the technical solution of this utility model is: a high-strength membrane shell structure, including a membrane shell body, with caps at both ends of the membrane shell body; the membrane shell body is a multi-layer nested structure, consisting of a support layer, a reinforcing layer, and a protective layer from the inside out; the support layer has several axially distributed support ribs inside, and guide grooves are formed between adjacent support ribs; the reinforcing layer is a mesh structure, formed by interwoven reinforcing ribs in different directions; the protective layer has several uniformly distributed reinforcing rings on its outer side.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the cover is a tubular structure, with an extended protective wall below the cover, which is fitted onto the outside of the protective layer; the inside of the cover is provided with a ring of protrusions, which abut against the end face of the membrane shell body.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the end of the cover away from the membrane shell body is provided with a protruding mounting surface, and the mounting surface is provided with at least one sealing groove.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the supporting ribs are evenly distributed along the axial direction of the supporting layer, and the supporting ribs are integrally formed with the supporting layer.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the reinforcing layer is composed of reinforcing ribs interwoven at 45 degrees and 135 degrees.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the reinforcing rings are evenly distributed along the circumference of the protective layer, and the reinforcing rings are integrally formed with the protective layer.

[0011] Based on the above scheme and as a preferred embodiment: the supporting layer is made of polypropylene, the reinforcing ribs of the reinforcing layer are made of carbon fiber composite material, and the protective layer is made of polytetrafluoroethylene.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The membrane housing is designed with a multi-layered nested structure. Supporting ribs are installed in the support layer, which not only enhances the strength of the membrane itself but also guides the water flow during ultrafiltration, making the water flow more evenly distributed inside the membrane housing and reducing the possibility of excessive local pressure. The reinforcing layer has a grid structure, which can effectively disperse the pressure on the membrane housing and make the pressure evenly distributed across the entire membrane housing, greatly improving the pressure resistance of the membrane housing. The reinforcing rings on the protective layer can enhance the overall strength of the outer protective shell and prevent the membrane housing from being damaged by external impacts during transportation, installation, and use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the parts of this utility model;

[0016] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0018] Figure 5 This is a schematic diagram of the structure of the support layer of this utility model;

[0019] Figure 6 This is a schematic diagram of the reinforcing layer of this utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the protective layer of this utility model.

[0021] The components in the diagram are labeled as follows: membrane shell body 1, support layer 11, support rib 111, flow guide channel 112, reinforcing layer 12, reinforcing rib 121, protective layer 13, reinforcing ring 131, cover 2, wall 21, boss 22, mounting surface 23, and sealing groove 24. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0024] Refer to the attached drawings. The high-strength membrane housing structure described in this embodiment includes a membrane housing body 1, with caps 2 at both ends. The membrane housing body 1 has a multi-layer nested structure, consisting of a support layer 11, a reinforcing layer 12, and a protective layer 13 from the inside out. The caps 2 are tubular structures with an extended protective wall 21 at the bottom, fitting around the outer sides of the protective layers 13 at both ends of the membrane housing body 1. The caps 2 and the membrane housing body 1 can be welded together. The caps 2 have a ring of protrusions 22 inside, which abut against the end faces of the membrane housing body 1 to seal the ends of the support layer 11, the reinforcing layer 12, and the protective layer 13. The end of the caps 2 away from the membrane housing body 1 has a protruding mounting surface 23 with at least one sealing groove 24, which can be sealed to the inlet and outlet end caps of the ultrafiltration membrane module.

[0025] The support layer 11 is made of polypropylene (PP) material, and its inner wall is provided with a number of longitudinal support ribs 111. The support ribs 111 are evenly distributed along the axial direction of the support layer 11, and a guide groove 112 is formed between adjacent support ribs 111. Moreover, the support ribs 111 and the support layer 11 can be integrally formed by injection molding process to ensure the strong connection between the support ribs 111 and the support layer 11.

[0026] The reinforcing layer 12 has a mesh structure, which is formed by interwoven reinforcing ribs 121 at 45 degrees and 135 degrees. The reinforcing ribs 121 can be made of carbon fiber composite material. Through compression molding process, the carbon fiber composite material is made into a mesh reinforcing layer, which gives it high strength and stability.

[0027] The protective layer 13 is made of polytetrafluoroethylene, which has good corrosion resistance and wear resistance. Several evenly distributed reinforcing rings 131 are provided on the outer side of the protective layer 13, and the reinforcing rings 131 are evenly distributed along the circumference of the protective layer 13. The reinforcing rings 131 and the protective layer 13 are integrally formed by extrusion molding, enhancing the overall strength of the protective layer 13.

[0028] During processing:

[0029] Support layer 11: Based on the structural dimensions of the support layer, a special injection mold is designed and manufactured. The mold needs to accurately form the shape and size of the support ribs and guide channels. Then, the injection molding process is carried out using the mold to obtain an integrally formed support layer.

[0030] Reinforcing layer 12: Carbon fiber composite material is selected, which can be carbon fiber cloth and epoxy resin matrix; a mold matching the reinforcing layer is made, and the layers are laid up and impregnated in the mold. After molding, the layers are demolded and trimmed to obtain the reinforcing layer.

[0031] Protective layer 13: Design a mold according to the protective layer. The mold cavity should be able to accurately form the outer wall and reinforcing ring of the protective layer. Then, use the extrusion process to extrude the molten PTFE material through the mold to form a prototype of the outer protective shell with the reinforcing ring. After cooling, shaping, trimming and cutting, an integrally formed protective layer is obtained.

[0032] Cap 2: Design a corresponding mold according to the shape and size of the cap, and mold it in one piece through injection molding process;

[0033] Assemble the membrane shell body 1: Sleeve the reinforcing layer axially over the support layer, ensuring that the two are aligned; then sleeve the protective layer axially over the reinforcing layer, and adjust its position to align the three-layer structure.

[0034] Assemble the cap 2: Fit the cap 2 onto the end of the membrane housing body 1. The protective wall 21 of the cap 2 is placed outside the protective layer 13. The internal protrusion 22 of the cap 2 abuts against the end of the membrane housing body 1. Then, the cap 2 and the membrane housing body 1 are fixed together by hot-melt technology, and the end of the membrane housing body 1 is completely sealed.

[0035] Overall Inspection: A comprehensive inspection is conducted on the assembled membrane housing, including testing for dimensional accuracy, sealing performance, and strength. Sealing performance can be checked through a hydrostatic test, applying pressure and observing for leaks. Mechanical property tests are used to verify the compressive strength and overall stability of the membrane housing.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high-strength membrane shell structure, comprising a membrane shell body, with caps at both ends of the membrane shell body; characterized in that: The membrane shell body has a multi-layer nested structure, consisting of a support layer, a reinforcing layer, and a protective layer from the inside out. The support layer has several axially distributed support ribs inside, and a flow guide groove is formed between adjacent support ribs. The reinforcing layer has a grid-like structure, which is formed by interwoven reinforcing ribs in different directions. The protective layer has several uniformly distributed reinforcing rings on its outer side.

2. The high-strength membrane shell structure as described in claim 1, characterized in that: The cap is a tubular structure with an extended protective wall at the bottom, which fits over the outer side of the protective layer; the inside of the cap has a ring of protrusions that abut against the end face of the membrane shell body.

3. The high-strength membrane shell structure as described in claim 2, characterized in that: The end of the cover away from the membrane body has a protruding mounting surface, and the mounting surface has at least one sealing groove.

4. The high-strength membrane shell structure as described in claim 1, characterized in that: The supporting ribs are evenly distributed along the axial direction of the supporting layer, and the supporting ribs are integrally formed with the supporting layer.

5. A high-strength membrane shell structure as described in claim 1, characterized in that: The reinforcing layer consists of reinforcing ribs interwoven at 45 degrees and 135 degrees.

6. The high-strength membrane shell structure as described in claim 1, characterized in that: The reinforcing rings are evenly distributed along the circumference of the protective layer, and the reinforcing rings are integrally formed with the protective layer.

7. The high-strength membrane shell structure as described in claim 1, characterized in that: The support layer is made of polypropylene, the reinforcing ribs of the reinforcing layer are made of carbon fiber composite material, and the protective layer is made of polytetrafluoroethylene.

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