A hollow fiber separation membrane shell

Abstract

This invention provides a hollow fiber separator membrane housing, including a sealing cavity and an encapsulation head. The encapsulation head is disposed on both sides of the sealing cavity and has a material inlet. One side of the encapsulation head has a material inlet as an inlet, and the other side has a material outlet as an outlet. The sealing cavity is sealed to the encapsulation head and extends into the encapsulation head, so that the end face of the sealing cavity is flush with the inner walls of the inlet and outlet on the encapsulation head, forming a tapered flow channel. The sealing cavity and the encapsulation head are connected by threads, and a sealing ring is provided at the connection. The sealing cavity is made of an aluminum alloy steel tube with threads at both ends. In practical use, this invention effectively solves the technical problem in the prior art where high-speed fluid directly impacts the ends of the membrane fibers, leading to membrane fiber breakage or performance degradation.

Description

Technical Field

[0001] This utility model relates to the field of separation membrane housing technology, specifically to a hollow fiber separation membrane housing. Background Technology

[0002] Hollow fiber membrane separation technology is widely used due to its high-efficiency separation characteristics, but the structural design of its core component, the membrane shell, still has the following problems with existing hollow fiber membrane shells:

[0003] First, traditional membrane housings are made by welding or integral injection molding, and the length of the sealing cavity is fixed. This makes it impossible to adjust the equipment size according to the processing volume, resulting in equipment redundancy for small-scale applications and the need to purchase a complete set of equipment for large-scale processing, which is not economical.

[0004] Secondly, the casing is used in environments with high temperature, high pressure, and vibration for a long time, which can easily lead to structural failure, resulting in media leakage and cross-contamination. The complex or non-removable sealing structure makes component maintenance difficult.

[0005] Third, in high-pressure environments such as nanofiltration, reverse osmosis, and gas separation, the shell may deform or even crack due to insufficient material strength or structural design defects.

[0006] Fourth, the accumulation of pollutants (such as organic matter, inorganic salts, and microorganisms) on the inner wall of the shell or the surface of the membrane leads to a decrease in flux and an increase in energy consumption. There are also too many dead corners in the structural design, making cleaning difficult.

[0007] Fifth, the existing housing design is difficult to flexibly adapt to the needs of different application scenarios, and recycling is difficult, resulting in resource waste. When multiple components are connected in series, the connection is complex, which may increase the risk of pressure drop and leakage.

[0008] Especially in actual use, high-speed fluid directly impacts the ends of the membrane fibers, causing the membrane fibers to break or their performance to degrade; after high-speed fluid (such as feed liquid pumped in under high pressure) enters the housing, it directly impacts the ends of the membrane fibers without buffering, causing the membrane fibers to break or the adhesive layer to peel off. Utility Model Content

[0009] The purpose of this invention is to provide a hollow fiber separation membrane housing that can effectively solve the technical problem in the prior art where high-speed fluid directly impacts the membrane fiber ends, leading to membrane fiber breakage or performance degradation.

[0010] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0011] A hollow fiber separation membrane housing includes a sealing cavity and an encapsulation head. The encapsulation head is used to be disposed on both sides of the sealing cavity. The encapsulation head is provided with a material port, with the material port on one side of the encapsulation head being a material inlet and the material port on the other side being a material outlet.

[0012] The sealing cavity is sealed to the packaging head, and the sealing cavity extends into the packaging head, so that the end face of the sealing cavity is flush with the inner wall of the inlet and outlet on the packaging head and forms a tapered flow channel.

[0013] Furthermore, the sealing cavity and the encapsulation head are connected by threads, and a sealing ring is provided at the connection point.

[0014] Preferably, the sealing cavity is made of an aluminum alloy steel tube with threads at both ends.

[0015] Furthermore, a feed head is provided at the feed inlet and a discharge head is provided at the discharge outlet. Both the feed head and the discharge head have sealing ring grooves at their ends, which are used to connect to the feed pump and the discharge pipe through a quick-connect structure.

[0016] The packaging head outlet end is provided with a Tang thread, which is used for the encapsulation and fixation of hollow fiber membrane to prevent the glue from falling off the membrane fibers.

[0017] Furthermore, the inside of the encapsulation head has a U-shaped structure, and a buffer area is formed at the connection between the curved part of the U-shaped structure and the discharge head.

[0018] A plug is provided on the side of the encapsulation head away from the sealing cavity, and the plug is sealed to the encapsulation head.

[0019] Furthermore, a blind plate is bolted to the end of the plug.

[0020] The feeding head and discharging head are detachably connected to the packaging head.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In practical use, this utility model mainly consists of a sealing cavity and a packaging head. By sealing the sealing cavity and the packaging head together, and extending the sealing cavity into the packaging head, the end face of the sealing cavity is flush with the inner walls of the inlet and outlet on the packaging head, forming a tapered flow channel. Because a tapered flow channel is formed, the flow rate can be controlled in stages. The cross-sectional area of ​​the outlet end of the tapered flow channel is enlarged to form a diffuser section, which converts some kinetic energy into static pressure energy, avoiding the concentrated impact of fluid kinetic energy on the membrane filament. This effectively solves the technical problem in the prior art where high-speed fluid directly impacts the end of the membrane filament, leading to membrane filament breakage or performance degradation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This utility model Figure 1 The main view.

[0026] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0027] Figure label:

[0028] 101 Sealing cavity, 102 Encapsulation head, 103 Material inlet, 104 Gradient flow channel, 105 Sealing ring, 106 Tang thread, 107 Plug, 108 Material inlet / outlet, 109 Feed head, 110 Discharge head, 111 Sealing ring groove. Detailed Implementation

[0029] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0030] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0031] 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 indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0033] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0035] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0036] Example 1

[0037] See Figures 1-3 This embodiment discloses a shell structure, specifically a hollow fiber separation membrane shell, including a sealing cavity 101 and a sealing head 102. The sealing head 102 is used to be disposed on both sides of the sealing cavity 101. The sealing head 102 is provided with a material port 103. The material port 103 of one sealing head 102 is a material inlet, and the material port 103 of the other sealing head 102 is a material outlet.

[0038] The sealing cavity 101 is sealed to the encapsulation head 102, and the sealing cavity 101 extends into the encapsulation head 102, so that the end face of the sealing cavity 101 is flush with the inner wall of the inlet and outlet provided on the encapsulation head 102 and forms a tapered flow channel 104.

[0039] In practical use, this utility model mainly consists of a sealing cavity 101 and a packaging head 102. By sealing the sealing cavity 101 and the packaging head 102 together, and extending the sealing cavity 101 into the packaging head 102, the end face of the sealing cavity 101 is flush with the inner walls of the inlet and outlet provided on the packaging head 102, forming a tapered flow channel 104. Since the tapered flow channel 104 is formed, the purpose of controlling the flow rate in stages can be achieved. The cross-sectional area of ​​the outlet end of the tapered flow channel is expanded to form a diffuser section, which converts part of the kinetic energy into static pressure energy, avoiding the concentrated impact of fluid kinetic energy on the membrane filament. This can effectively solve the technical problem in the prior art where high-speed fluid directly impacts the end of the membrane filament, leading to membrane filament breakage or performance degradation.

[0040] Furthermore, a detachable material inlet / outlet 108 is provided on the packaging head 102 near the feed head 109.

[0041] Furthermore, the sealing cavity 101 and the encapsulation head 102 are connected by threads, and a sealing ring 105 is provided at the connection point. The threaded connection effectively improves installation efficiency, and the sealing ring 105 further enhances the sealing effect.

[0042] The sealing cavity 101 is made of an aluminum alloy steel tube with threads at both ends.

[0043] Furthermore, a feed head 109 is provided at the feed inlet 103, and a discharge head 110 is provided at the discharge outlet 103. Both the feed head 109 and the discharge head 110 have sealing ring grooves 111 at their ends, which are used to connect to the feed pump and the discharge pipe through a quick-tight structure.

[0044] Furthermore, in some preferred embodiments, the outlet end of the encapsulation head 102 is provided with a Donner thread 106. The Donner thread 106 is used for the encapsulation and fixation of the hollow fiber membrane to prevent the adhesive from falling off the membrane fibers. The Donner thread structure increases the contact area of ​​the adhesive and the mechanical interlocking force, preventing the adhesive layer from falling off. At the same time, the encapsulation and fixation form an integrated encapsulation, enhancing the resistance of the membrane fiber ends to fluid impact.

[0045] Furthermore, in some preferred embodiments, the encapsulation head 102 has an internal U-shaped structure, and a buffer area is formed at the bend of the U-shaped structure where it connects to the discharge head 110. This buffer area at the bend of the U-shaped structure alleviates sudden pressure changes, reduces the direct impact of fluid on the membrane filament encapsulation end, and prevents structural fatigue damage.

[0046] Among them, a plug 107 is provided on the side of the encapsulation head 102 away from the sealing cavity 101, and the plug 107 is sealed to the encapsulation head 102.

[0047] Furthermore, a blind plate is bolted to the end of the plug 107.

[0048] Furthermore, the feed head 109 and the discharge head 110 are detachably connected to the packaging head 102.

[0049] To facilitate a better understanding of this invention by those skilled in the art, the following detailed description is provided in conjunction with specific implementation examples.

[0050] A hollow fiber separation membrane housing with a modular design achieves multi-stage sealing and has the advantages of good pressure resistance, sealing performance and easy recycling.

[0051] The hollow fiber separator housing is mainly composed of a sealing head 102, a feeding head 109, a sealing cavity 101, a discharging head 110, and a plug 107, and the whole structure is made of aluminum alloy.

[0052] The encapsulation head 102 is used for hollow fiber membrane encapsulation. The encapsulation head 102 has a U-shaped internal design and an outlet connected to the discharge head 110. The outlet has a Tang-style thread 106 for fixing the hollow fiber membrane during encapsulation with adhesive, preventing the adhesive from falling off the membrane fibers, and enhancing the connection and sealing performance. The inlet end is connected to the sealing cavity 101 by a thread and is equipped with a sealing ring 105 for locking, increasing the sealing performance. The side is connected to the inlet / outlet head 110 by an internal hexagonal screw, and a sealing ring groove 111 is provided at the connection for easy disassembly.

[0053] The sealing cavity 101 is used to carry the hollow fiber membrane and the medium flow. The sealing cavity 101 is composed of aluminum alloy steel tubes with threads at both ends. The length can be changed as needed. A groove (sealing ring groove 111) is opened at the connection with the sealing head 102 to place the sealing ring 105. The sealing cavity 101 is relatively long and extends into the sealing head 102. The port is flush with the inlet and outlet 103 to reduce the impact of the fast speed of material in and out on the membrane fibers.

[0054] The feed head 109 has a sealing ring groove 111 at the inlet, which can be quickly connected to the feed pump by quick-connect screwing.

[0055] The discharge head 110 has a sealing ring groove 111 at the inlet, which can be quickly connected to the discharge pipe by quick screwing.

[0056] In practical use, the assembly process of this utility model is as follows:

[0057] Insert the sealing ring 105 into the slots of the sealing ring 105 at both ends of the detachable membrane cavity;

[0058] Screw the detachable encapsulation head 102 into the mating thread of the sealing cavity 101 until the encapsulation head 102 and the sealing cavity 101 are fully mated.

[0059] Insert the sealing ring 105 into the side slot of the detachable encapsulation head 102, and install the feed head 109 and the discharge head 110, and secure them with hex screws.

[0060] The two ends of the encapsulation head 102 are fitted with detachable material inlets / outlets 108, or plugs 107 / blind plates can be installed as needed.

[0061] In practical use, the specific packaging process of this utility model is as follows:

[0062] Calculate the filling rate based on the size of the sealing cavity 101 and the hollow fiber size. Take a certain number of central control fiber membrane filaments after drying, with a length 5-10cm longer than the length of the sealing cavity 101 + encapsulation head 102. Place the membrane filaments into the sealing cavity 101, with 3-5cm protruding from both ends (before the detachable material inlet / outlet 108 or plug 107 are installed). Use glue to encapsulate the component. The glue flows in from the material inlet / outlet. Then, centrifuge and cut the glue. Finally, install the detachable material inlet / outlet at both ends to complete the encapsulation.

[0063] Furthermore, in practical applications, the sealing head 102, material inlet / outlet 108, and pipeline are connected by clamps, which has the advantages of being fast and having good sealing performance.

[0064] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hollow fiber separation membrane housing, comprising a sealing cavity and an encapsulation head, wherein the encapsulation head is disposed on both sides of the sealing cavity, and the encapsulation head is provided with a material port, wherein the material port of one side of the encapsulation head is a material inlet and the material port of the other side of the encapsulation head is a material outlet; Its features are: The sealing cavity is sealed to the encapsulation head, and the sealing cavity extends into the encapsulation head, so that the end face of the sealing cavity is flush with the inner wall of the inlet and outlet on the encapsulation head and forms a tapered flow channel.

2. The hollow fiber separation membrane housing according to claim 1, characterized in that: The sealing cavity and the encapsulation head are connected by threads, and a sealing ring is provided at the connection point.

3. The hollow fiber separation membrane housing according to claim 1, characterized in that: The sealing cavity is made of aluminum alloy steel tubes with threads at both ends.

4. The hollow fiber separation membrane housing according to claim 1, characterized in that: The feed inlet is equipped with a feed head, and the discharge outlet is equipped with a discharge head. Both the feed head and the discharge head have sealing ring grooves at their ends, which are used to connect to the feed pump and the discharge pipe through a quick-connect structure.

5. The hollow fiber separation membrane housing according to claim 1, characterized in that: The packaging head outlet end is provided with a Tang thread, which is used for the encapsulation and fixation of hollow fiber membrane to prevent the glue from falling off the membrane fibers.

6. A hollow fiber separation membrane housing according to any one of claims 1-5, characterized in that: The inside of the encapsulation head has a U-shaped structure, and a buffer area is formed at the connection between the curved part of the U-shaped structure and the discharge head.

7. The hollow fiber separation membrane housing according to claim 1, characterized in that: A plug is provided on the side of the encapsulation head away from the sealing cavity, and the plug is sealed to the encapsulation head.

8. A hollow fiber separation membrane housing according to claim 7, characterized in that: The end of the plug is connected to a blind plate by bolts.

9. A hollow fiber separation membrane housing according to claim 2, characterized in that: The feed head and discharge head are detachably connected to the packaging head.

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