A nanofiltration membrane device

Abstract

The utility model discloses a nanofiltration membrane equipment, it includes feeding subassembly, the feeding subassembly includes shell no.

Description

Technical Field

[0001] This utility model relates to the field of nanofiltration membrane equipment technology, specifically to a nanofiltration membrane equipment for purifying chondroitin sulfate. Background Technology

[0002] Chondroitin sulfate is a type of glycosaminoglycan covalently linked to proteins to form proteoglycans. It is widely distributed in the extracellular matrix and cell surface of animal tissues. The glycan chains are composed of alternating glucuronic acid and N-acetylgalactosamine polymers, linked to serine residues of the core protein via a glycan-like linker region. Currently, nanofiltration membrane equipment is commonly used in the processing of chondroitin sulfate for filtration and purification.

[0003] Although the device has many beneficial effects in the existing technology, the following problems still exist: Traditional equipment adopts an integrated membrane module design, and replacing a faulty membrane requires stopping the machine and disassembling the entire shell, which takes a long time for each maintenance and further increases labor costs. Secondly, the fixed flow channel leads to uneven material flow rate distribution, small effective filtration area on the membrane surface, lack of disturbance mechanism, insufficient separation accuracy of sulfur chondroitin and small molecule impurities, and the purity of the product needs to be improved. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] 1. Technical problems to be solved:

[0006] To address the aforementioned problems of low maintenance efficiency and insufficient separation accuracy, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a nanofiltration membrane device that adopts a flange-type multi-section shell structure. The primary filter and the secondary filter are equipped with plug-in membrane module, which enables the replacement of individual membrane sheets. This effectively avoids the increased maintenance costs caused by replacing the entire filter membrane, effectively reduces the time of each maintenance replacement and reduces maintenance labor costs. At the same time, the built-in multi-stage spiral guide plate forms a spiral vortex flow field, which effectively improves the material flow rate and the utilization rate of the filtration area. After the material passes through the primary filter and the primary filter membrane, it passes through the secondary filter, which effectively improves the sulfur chondroitin retention rate and improves the product purity.

[0008] 2. Technical Solution:

[0009] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0010] A nanofiltration membrane device includes a feeding assembly, the feeding assembly including a first housing, a primary filter element disposed at the bottom of the first housing, the primary filter element including a second housing, a secondary filter element disposed at the bottom of the second housing, and the secondary filter element including a discharge port.

[0011] In a preferred embodiment of the nanofiltration membrane device of this utility model, the top of the outer shell is integrally formed with a feed pipe, the top of the feed pipe has a feed port, a flow-tightening element is welded to the inner circumference of the outer shell, and multiple spiral blades are welded to the inner circumference of the flow-tightening element.

[0012] In a preferred embodiment of the nanofiltration membrane device of this utility model, the inner walls of the outer shell are integrally formed with multiple mounting seats, the side walls of the mounting seats are provided with mounting grooves, the bottom side walls of the mounting seats are inserted with a lower fixing frame, the top of the lower fixing frame is inserted with a filter element, the top of the filter element is inserted with an upper fixing frame, and the top of the upper fixing frame is provided with a connection port.

[0013] In a preferred embodiment of the nanofiltration membrane device of this utility model, the filter element includes a fixing frame, a filter membrane is inserted into the fixing frame, a sealing gasket is embedded in the side wall of the fixing frame, the sealing gasket enhances the sealing performance of the filter element and prevents the fixing frame from being damaged by compression during connection, a sliding strip is integrally formed on the side wall of the fixing frame, and a limit groove is formed on the other side of the fixing frame.

[0014] In a preferred embodiment of the nanofiltration membrane device of this utility model, the turbulence-disrupting element has a funnel-shaped structure, which facilitates material flow and enhances the pressure resistance of the turbulence-disrupting element. The bottom of the outer circumferential wall of the outer shell is fixedly connected to the second outer shell through a flange.

[0015] In a preferred embodiment of the nanofiltration membrane device of this utility model, a sealing ring is embedded inside the circumference of the connection port. The sealing ring improves the connection sealing performance and buffers the vibration of the turbulent component caused by material flow. The inner wall of the connection port is in close contact with the turbulent component. The upper fixed frame and the lower fixed frame are both integrally formed with mounting blocks that match the shape and size of the mounting groove.

[0016] In a preferred embodiment of the nanofiltration membrane device of this utility model, the limiting groove is a dovetail groove structure, and the shape and size of the sliding strip match the shape and size of the limiting groove.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This nanofiltration membrane equipment adopts a flange-type multi-section shell structure. The primary filter and the secondary filter are equipped with plug-in membrane module modules, which can realize the replacement of individual membrane sheets. This effectively avoids the increase in maintenance costs caused by replacing the entire filter membrane, and effectively reduces the time of each maintenance and replacement and reduces maintenance labor costs.

[0020] This nanofiltration membrane equipment has a built-in multi-stage spiral guide plate to form a spiral vortex flow field, which effectively improves the material flow rate and the utilization rate of the filtration area. After the material passes through the primary filter element and the primary filter membrane, it passes through the secondary filter element, which effectively improves the sulfur chondroitin retention rate and improves the product purity. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a schematic diagram of the overall structure of a nanofiltration membrane device according to the present invention;

[0023] Figure 2 This is an exploded view of the overall structure of a nanofiltration membrane device according to this utility model;

[0024] Figure 3 This is a schematic diagram of the feeding assembly structure of a nanofiltration membrane device according to the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the primary filter element of a nanofiltration membrane device according to the present invention;

[0026] Figure 5 This is a partial structural diagram of the filter element of a nanofiltration membrane device according to the present invention.

[0027] The following are the labels in the diagram: 100, Feeding assembly; 110, Outer shell one; 111, Feed inlet; 120, Baffle; 121, Spiral blade; 200, Primary filter element; 210, Outer shell two; 211, Mounting base; 220, Lower fixing frame; 230, Filter element; 231, Filter membrane; 232, Fixing bracket; 233, Sliding strip; 234, Limiting groove; 235, Sealing gasket; 240, Upper fixing frame; 241, Connection port; 300, Secondary filter element; 310, Discharge port. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0030] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0033] This utility model provides an overall structural schematic diagram of an embodiment of a nanofiltration membrane device, including:

[0034] Please see Figures 1-5 The nanofiltration membrane device of this embodiment includes a feeding assembly 100, which includes a first housing 110. A primary filter element 200 is provided at the bottom of the first housing 110. The primary filter element 200 includes a second housing 210. A re-filter element 300 is provided at the bottom of the second housing 210. The re-filter element 300 includes a discharge port 310.

[0035] It is worth noting that, in order to facilitate the turbulence of the material, the top of the outer shell 110 is integrally connected to a feed pipe, and the top of the feed pipe has a feed port 111 to facilitate the entry of the material. The inner circumference of the outer shell 110 is welded with a turbulence-inducing element 120, and the inner circumference of the turbulence-inducing element 120 is welded with multiple spiral blades 121. The multiple spiral blades 121 make the material form a vortex, increase the material flow rate, and make the turbulent material fully contact the filter element 230.

[0036] Next, to facilitate the installation of the filter element 230, specifically, the inner circumference of the outer shell 210 is integrally formed with multiple mounting seats 211. The side wall of the mounting seat 211 has a mounting groove. The bottom mounting seat 211 has a lower fixing frame 220 inserted into its side wall. The top of the lower fixing frame 220 is inserted into the filter element 230, and the top of the filter element 230 is inserted into an upper fixing frame 240. The top of the upper fixing frame 240 has a connection port 241. The mounting seats 211 are slidably inserted into the fixing form, which facilitates maintenance work and improves the efficiency of maintenance operations.

[0037] Meanwhile, in order to increase the sealing performance of the filter element 230, specifically, the filter element 230 includes a fixing frame 232, a filter membrane 231 is inserted inside the fixing frame 232 to filter and purify the material, a sealing gasket 235 is embedded in the side wall of the fixing frame to improve the connection sealing performance of the filter element 230, a sliding strip 233 is integrally formed on the side wall of the fixing frame 232, and a limit groove 234 is opened on the other side of the fixing frame 232.

[0038] Furthermore, to facilitate material flow, specifically, the baffle 120 has a funnel-shaped structure, which facilitates material flow and further increases the material flow rate. The bottom of the outer circumference of the outer shell 110 is fixedly connected to the outer shell 210 via a flange, which improves the connection and sealing between the feed assembly 100 and the primary filter 200.

[0039] It is worth noting that, in order to ensure the connection stability of the primary filter element 200, a sealing ring is embedded inside the circumference of the connection port 241, and the inner wall of the connection port 241 is tightly attached to the baffle 120 to improve the internal sealing of the equipment. The side walls of the upper fixed frame 240 and the lower fixed frame 220 are integrally formed with mounting blocks that match the shape and size of the mounting groove to improve the installation stability of the filter element 230.

[0040] Finally, in order to improve the connection stability inside the filter element 230, the limiting groove 234 is a dovetail groove structure, and the shape and size of the sliding strip 233 match the shape and size of the limiting groove 234. The limiting groove 234 and the sliding strip 233 are connected and cooperated to facilitate disassembly and replacement, while improving the connection stability of each module of the filter element 230.

[0041] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0042] Combination Figures 1-5 The specific usage process of a nanofiltration membrane device according to this embodiment is as follows:

[0043] 1: Before using the nanofiltration membrane equipment, connect the inlet 111 at the top of the equipment to the storage device that stores the chondroitin sulfate to be filtered and purified, and then connect the outlet 310 of the equipment to the storage device for storing the purified chondroitin sulfate. Then use the nanofiltration membrane equipment to perform the filtration and purification of chondroitin sulfate.

[0044] 2: When the material enters the equipment through the feed inlet 111, it first enters through the turbulence-inducing element 120. Due to the funnel-shaped structure of the turbulence-inducing element 120 and the multiple spiral blades 121 inside, the flow rate of chondroitin sulfate is increased and a vortex is formed. Through the vortex effect, the contact area between chondroitin sulfate and the filter element 230 is increased. Then, chondroitin sulfate flows from the inside of the filter element 230 of the primary filter element 200 to the outside and is subjected to primary filtration. Then, it flows to the secondary filter element 300 and flows from the outside of the filter element 230 to the inside for secondary filtration. Finally, it is discharged through the discharge outlet 310, thereby improving the purification accuracy of chondroitin sulfate.

[0045] 3. When filter element 230 needs maintenance and replacement, close the connection of the equipment and use tools to remove the connecting flange to expose filter element 230. Then slide the upper fixing frame 240 out of the mounting seat 211. Then check the damaged module and slide the corresponding fixing bracket 232 up to move the sliding strip 233 out of the limiting groove 234. Then remove and replace the internal filter membrane 231. After the maintenance work is completed, align the mounting block on the side wall of the upper fixing frame 240 with the mounting seat 211 and press it down to insert it. Align the bottom of the baffle 120 with the connection port 241 and press it down to install. Then install the flange to end the maintenance work.

[0046] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A nanofiltration membrane device, characterized in that, The device includes a feeding assembly (100), which includes a first housing (110), a primary filter (200) at the bottom of the first housing (110), a second housing (210), a re-filter (300) at the bottom of the second housing (210), and a discharge port (310). The top of the outer shell (110) is integrally formed and connected to a feed pipe. The top of the feed pipe has a feed port (111). The inner circumference of the outer shell (110) is welded with a baffle (120). The inner circumference of the baffle (120) is welded with multiple spiral blades (121). The inner circumference of the outer shell (210) is integrally formed with multiple mounting seats (211). The mounting seats (211) have mounting grooves on their side walls. A lower fixing frame (220) is inserted into the side wall of the mounting seat (211) at the bottom of the inner circumference of the outer shell (210). A filter element (230) is inserted into the top of the lower fixing frame (220). An upper fixing frame (240) is inserted into the top of the filter element (230). A connection port (241) is opened on the top of the upper fixing frame (240).

2. The nanofiltration membrane device according to claim 1, characterized in that, The filter element (230) includes a fixing frame (232), a filter membrane (231) is inserted inside the fixing frame (232), a sealing gasket (235) is embedded in the side wall of the fixing frame (232), a sliding strip (233) is integrally formed and connected to the side wall of the fixing frame (232), and a limiting groove (234) is opened on the other side of the fixing frame (232).

3. The nanofiltration membrane device according to claim 1, characterized in that, The turbulence-disrupting component (120) has a funnel-shaped structure, and the bottom of the outer circumferential outer wall of the first outer shell (110) is fixedly connected to the second outer shell (210) via a flange.

4. The nanofiltration membrane device according to claim 1, characterized in that, A sealing ring is embedded in the inner circumference of the connection port (241), and the inner circumference of the connection port (241) is in close contact with the baffle (120). The upper fixing frame (240) and the lower fixing frame (220) are both integrally formed with mounting blocks that match the shape and size of the mounting groove.

5. The nanofiltration membrane device according to claim 2, characterized in that, The limiting groove (234) is a dovetail groove structure, and the shape and size of the sliding bar (233) match the shape and size of the limiting groove (234).

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