A multi-stage filtration component for membrane equipment

Abstract

This disclosure relates to the field of filtration technology. One embodiment of this disclosure provides a multi-stage filtration assembly for a membrane device, comprising: a filter cartridge with a filter chamber inside; a diversion filtration assembly disposed inside the filter cartridge; and a connecting rod disposed at the bottom inner of the inlet diversion sealing cover. This technical solution solves the problems of existing water purification devices, such as complex structures, cumbersome internal filter cleaning and replacement processes, which greatly increase maintenance and time costs. Although these devices can intercept large particles of impurities, the impurities remain in the form of adsorption, and if not replaced for a long time, they can easily cause secondary pollution to the raw water. Furthermore, in the field of multi-stage membrane filtration systems, existing equipment suffers from numerous problems. Traditional multi-stage membrane filtration systems typically rely on a large number of connecting pipes to achieve multi-stage filtration, which not only leads to complex structures but also significantly increases equipment costs.

Description

Technical Field

[0001] The embodiments of this disclosure relate to the field of filtration technology, and more specifically, to a multi-stage filtration assembly for a membrane device. Background Technology

[0002] Membrane filtration technology stands out among many filtration technologies due to its ability to effectively remove impurities such as floating matter, heavy metals, bacteria, and viruses from water, and has received widespread application and attention. However, current membrane filtration equipment on the market has exposed many problems. On the one hand, traditional water purification devices have complex structures and cumbersome internal filter cleaning and replacement processes, which greatly increases maintenance and time costs. Although they can intercept large particles of impurities, these impurities remain in the form of adsorption. If they are not replaced for a long time, they can easily cause secondary pollution to the raw water. On the other hand, in the field of multi-stage membrane filtration systems, existing equipment has many problems. Traditional multi-stage membrane filtration systems usually rely on a large number of connecting pipes to achieve multi-stage filtration. This not only leads to complex structures but also significantly increases equipment costs. Moreover, when multiple membranes need to be replaced, they must be replaced one by one, which is extremely inefficient. In some industrial production scenarios, frequent and inefficient membrane replacement work seriously affects the continuity and efficiency of production. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a multi-stage filtration component for membrane equipment, which solves the problems of the complex structure of traditional water purification devices in the prior art, the cumbersome process of cleaning and replacing internal filter elements, which greatly increases maintenance and time costs. Although it can intercept large particulate impurities, the impurities are retained in the form of adsorption. If they are not replaced for a long time, they are very likely to cause secondary pollution to the raw water. On the other hand, in the field of multi-stage membrane filtration systems, existing equipment has many problems. Traditional multi-stage membrane filtration systems usually rely on a large number of connecting pipes to achieve multi-stage filtration, which not only leads to complex structure, but also greatly increases the technical problem of equipment cost.

[0004] According to one aspect, at least one embodiment of this disclosure provides a multi-stage filtration assembly for a membrane device, comprising:

[0005] A filter cartridge, wherein a filter chamber is provided inside the filter cartridge;

[0006] A diversion filter assembly is disposed inside the filter cartridge;

[0007] A filter cleaning assembly is disposed inside the filter cartridge;

[0008] The diversion filtration assembly includes a multi-stage filtration module, which is disposed on the filter cylinder. The upper end of the multi-stage filtration module is provided with a stepped groove, and an inlet diversion sealing cap is fastened to the stepped groove.

[0009] As a further technical solution, a collection cover is provided inside the filter cartridge, and the collection cover is attached to the inner side wall of the filter cartridge.

[0010] As a further technical solution, the filter cleaning assembly includes a constant temperature chamber, which is fitted onto the outer wall of the filter cylinder. A heat exchange coil is provided inside the constant temperature chamber, and a plug-in groove is provided on the top of the filter cylinder. A snap-fit ​​cover is sealed and inserted into the plug-in groove.

[0011] As a further technical solution, both the snap-on cover and the filter cylinder have liquid passage pipes. The outer wall of the liquid passage pipe has a sliding groove, and a sliding sleeve is fitted inside the sliding groove. The inner wall of the sliding sleeve is provided with engagement threads.

[0012] As a further technical solution, a sealing gasket is provided on the inner top of the sliding sleeve, and the upper end of the sealing gasket is sealed and fitted to the inner top of the sliding groove.

[0013] As a further technical solution, the multi-stage filtration module is a cylindrical structure formed by stacking multiple filter membranes one by one.

[0014] As a further technical solution, the inner wall of the constant temperature cavity is provided with a heat insulation layer.

[0015] As a further technical solution, a collection plate is provided at the bottom of the collection cover, and the collection plate is sealed to the collection cover.

[0016] The beneficial effects of the embodiments disclosed herein are as follows:

[0017] In this disclosure, the multi-stage filtration module adopts a cylindrical structure formed by stacking multiple filter membranes one by one to construct a graded filtration system. This design can accurately filter impurities in the liquid step by step according to the pore size of different filter membranes. From the outer filter membrane that intercepts larger particles of impurities to the inner filter membrane that traps tiny particles, it achieves efficient removal of impurities of different particle sizes. Compared with the traditional filtration method of single-layer microfiltration membrane or simple filter mesh combination, it greatly improves filtration efficiency and filtration effect, significantly improves the purity and quality of the filtered liquid, meets the strict water quality standards of high-requirement industries such as drinking water purification, pharmaceuticals, and electronics, and effectively solves the problems of filter membrane clogging, low enrichment rate and positive detection rate when traditional filtration methods trap small-diameter samples. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0020] Figure 2 This is a cross-sectional view of the filter cartridge of this disclosure;

[0021] Figure 3 This is an isometric view of the multi-stage filtration module disclosed herein;

[0022] Figure 4 Appendix to this disclosure Figure 2 Enlarged view of part A;

[0023] Figure 5 Appendix to this disclosure Figure 2 Enlarged view of part B;

[0024] In the diagram: 1. Filter cartridge; 2. Filter chamber; 3. Diverter filter assembly; 3-1. Multi-stage filter module; 3-2. Stepped groove; 3-3. Liquid inlet diverter sealing cover; 3-4. Collection cover; 4. Filter cleaning assembly; 4-1. Constant temperature chamber; 4-2. Heat exchange coil; 4-3. Insertion groove; 4-4. Snap-on cover; 4-5. Liquid passage pipe; 4-6. Sliding groove; 4-7. Sliding sleeve; 4-8. Engaging thread; 5. Fitting sealing gasket; 6. Insulation layer; 7. Collection base plate. Detailed Implementation

[0025] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0026] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0027] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0028] In this disclosure, unless otherwise expressly 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 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 directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are 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. Therefore, they should not be construed as limitations on this disclosure.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] like Figures 1-5 As shown, a multi-stage filtration assembly for a membrane device according to this disclosure is illustrated, comprising:

[0032] Filter cartridge 1, with a filter chamber 2 inside the filter cartridge 1;

[0033] Diversion filter assembly 3 is disposed inside the filter cylinder;

[0034] Filter cleaning component 4 is disposed inside filter cartridge 1;

[0035] The diversion filter assembly 3 includes a multi-stage filter module 3-1, which is mounted on the filter cartridge. The upper end of the multi-stage filter module 3-1 is provided with a stepped groove 3-2, and an inlet diversion sealing cap 3-3 is fastened to the stepped groove 3-2.

[0036] The filter cleaning assembly 4 includes a constant temperature chamber 4-1, which is fitted onto the outer wall of the filter cylinder 1. A heat exchange coil 4-2 is installed inside the constant temperature chamber 4-1. A plug-in groove 4-3 is provided on the top of the filter cylinder 1, and a snap-fit ​​cover 4-4 is sealed and inserted into the plug-in groove 4-3.

[0037] In some examples, filter cartridge 1 is placed stably in the predetermined position to ensure that it is installed securely and will not shake or shift during subsequent operation. The filter chamber 2 inside filter cartridge 1 must be kept clean and free of impurities to provide a good environment for subsequent filtration. The multi-stage filter module 3-1 is installed on the filter cartridge, ensuring that the installation is tight and there is no looseness. Since the multi-stage filter module 3-1 is a cylindrical structure formed by multiple filter membranes being assembled one by one, attention should be paid to the integrity of each layer of filter membrane during installation to avoid damage. Different layers of filter membranes are selected according to actual filtration needs to achieve effective filtration of impurities of different particle sizes. The liquid inlet distribution sealing cap 3-3 is precisely fastened to the upper stepped groove 3-2 of the multi-stage filter module 3-1 to ensure good sealing and prevent liquid leakage.

[0038] The constant temperature chamber 4-1 is fitted onto the outer wall of the filter cartridge 1, ensuring accurate installation so that the constant temperature chamber 4-1 can evenly regulate the temperature of the filter cartridge 1. Heat exchange coils 4-2 are installed inside the constant temperature chamber 4-1, ensuring they are securely installed and rationally arranged to fully utilize their heat exchange function. The liquid to be filtered enters the multi-stage filtration module 3-1 through the inlet diversion sealing cover 3-3, which evenly distributes the liquid into the multi-stage filtration module 3-1. The liquid then flows out through specific channels within the filter cartridge 1, completing the filtration process for subsequent treatment.

[0039] like Figures 1-5 As shown, in this embodiment, a collection cover 3-4 is provided inside the filter cylinder 1, and the collection cover 3-4 is attached to the inner side wall of the filter cylinder 1.

[0040] In some examples, the collection hood 3-4 is fitted snugly to the inner wall of the filter cartridge 1 to ensure a tight, gapless installation.

[0041] For example, such as Figure 2 As shown, both the snap-on cover 4-4 and the filter cylinder 1 have liquid passage pipes 4-5. The outer wall of the liquid passage pipe 4-5 has a sliding groove 4-6. The sliding groove 4-6 is fitted with a sliding sleeve 4-7. The inner wall of the sliding sleeve 4-7 is provided with an engaging thread 4-8.

[0042] In some examples, a sealing plug-in cover 4-4 is installed in the top insertion groove 4-3 of the filter cartridge 1 to ensure the sealing of the connection and prevent liquid leakage and the entry of external impurities. A liquid passage pipe 4-5 is opened on the plug-in cover 4-4 and the filter cartridge 1 to ensure the accurate position of the liquid passage pipe 4-5 and facilitate liquid flow. A sliding groove 4-6 is opened on the outer wall of the liquid passage pipe 4-5, and a sliding sleeve 4-7 is fitted into the sliding groove 4-6 to ensure that the sliding sleeve 4-7 can slide freely in the sliding groove 4-6. An engaging thread 4-8 is provided on the inner wall of the sliding sleeve 4-7 for cooperation with other components to achieve specific functions.

[0043] For example, such as Figure 5 As shown, a sealing gasket 5 is provided on the inner top of the sliding sleeve 4-7, and the upper end of the sealing gasket 5 is sealed and fitted to the inner top of the sliding groove 4-6.

[0044] In some examples, a sealing gasket 5 is installed on the inner top of the sliding sleeve 4-7, so that the upper end of the sealing gasket 5 is sealed and fitted with the inner top of the sliding groove 4-6, thereby enhancing the sealing effect.

[0045] For example, such as Figure 3 As shown, the multi-stage filtration module 3-1 is a cylindrical structure formed by stacking multiple filter membranes one by one.

[0046] In some examples, the liquid that has undergone preliminary filtration enters the multi-stage filtration module 3-1, which is formed by multiple filter membranes stacked one after another. According to the different pore sizes of each filter membrane, impurities in the liquid are filtered step by step. Smaller particles are intercepted by different filter membranes, thereby achieving fine filtration of the liquid.

[0047] For example, such as Figure 2 As shown, the inner wall of the constant temperature cavity 4-1 is provided with a heat insulation layer 6.

[0048] In some examples, when temperature control of the filtration process is required, the internal temperature of the filter cartridge 1 can be adjusted by introducing a heating or cooling medium into the heat exchange coil 4-2 in the constant temperature chamber 4-1. For example, in some temperature-sensitive filtration scenarios, if it is necessary to maintain a constant temperature, the flow rate and temperature of the medium in the heat exchange coil 4-2 can be adjusted to keep the constant temperature chamber 4-1 within the set temperature range, thereby ensuring the stability of the filtration effect. The insulation layer 6 can reduce the heat exchange between the constant temperature chamber 4-1 and the external environment, improve energy utilization efficiency, and make temperature regulation more precise and energy-saving.

[0049] For example, such as Figure 2 As shown, a collection plate 7 is provided at the bottom of the collection cover 3-4, and the collection plate 7 is sealed to the collection cover 3-4.

[0050] In some examples, a collection plate 7 is installed at the bottom of the collection hood 3-4 to create a sealed connection between the collection plate 7 and the collection hood 3-4, preventing liquid leakage and enabling effective collection of impurities and filtrate generated during the filtration process.

[0051] During use, the liquid to be filtered enters the component through the liquid inlet diversion sealing cover 3-3. The liquid inlet diversion sealing cover 3-3 uses its special structure to evenly distribute the liquid into the multi-stage filtration module 3-1, avoiding the liquid from concentrating and impacting a certain part of the filter membrane.

[0052] The multi-stage filtration module 3-1 is composed of multiple filter membranes with different pore sizes, which are assembled one after another to form a graded filtration system. Under pressure, the liquid passes through the filter membranes in sequence from large pore size to small pore size. Larger particles are intercepted by the outer filter membrane with larger pore size. As the liquid goes deeper, smaller particles are gradually intercepted by the inner filter membrane with smaller pore size, thereby achieving multi-stage fine filtration of impurities of different particle sizes in the liquid and ensuring that the filtered liquid reaches a high degree of purity.

[0053] During the liquid filtration process, the collection hood 3-4 is fitted against the inner wall of the filter cylinder 1. Its unique shape and position design can effectively collect impurities and part of the filtrate generated during the filtration process. Under the action of gravity and liquid flow, the impurities and filtrate converge towards the bottom of the collection hood 3-4 and finally concentrate at the collection plate 7. The collection plate 7 is sealed to the collection hood 3-4 to prevent liquid leakage. At the same time, it is convenient to clean the collected impurities and filtrate, and maintain the normal operation of the filtration process.

[0054] The thermostatic chamber 4-1 in the filter cleaning assembly 4 is fitted onto the outer wall of the filter cylinder 1. The heat exchange coil 4-2 inside is the key component for temperature regulation. When it is necessary to regulate the internal temperature of the filter cylinder 1, a heating or cooling medium (such as hot water, cold water, hot steam, refrigerant, etc.) is introduced into the heat exchange coil 4-2. The heat is transferred to the thermostatic chamber 4-1 through heat exchange between the medium and the heat exchange coil 4-2, and then the heat is transferred to the filter cylinder 1 through heat conduction to regulate the temperature of the liquid inside the filter cylinder 1.

[0055] The insulation layer 6 on the inner wall of the constant temperature chamber 4-1 can effectively prevent heat exchange between the constant temperature chamber 4-1 and the external environment, reduce heat loss or the intrusion of external heat, and ensure that the temperature inside the constant temperature chamber 4-1 can be stabilized within the set range, so as to ensure that the filtration process is carried out under suitable temperature conditions and avoid the performance and filtration effect of the filter membrane due to temperature fluctuations.

[0056] The snap-on cover 4-4 is sealed and inserted into the insertion groove 4-3 at the top of the filter cartridge 1. When it is necessary to clean the inside of the filter cartridge 1, the snap-on cover 4-4 can be opened to operate inside. The sliding sleeve 4-7 on the outer wall of the liquid pipe 4-5 and the meshing thread 4-8 on its inner wall provide convenience for cleaning operations. Cleaning tools with corresponding threads can be connected to the sliding sleeve 4-7.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A multi-stage filtration assembly for a membrane device, characterized by, include: A filter cylinder (1) is provided with a filter chamber (2) inside the filter cylinder (1); Diverting filter assembly (3), which is disposed inside the filter cylinder (1); A filter cleaning assembly (4) is disposed inside the filter cylinder (1); The diversion filtration assembly (3) includes a multi-stage filtration module (3-1), which is disposed on the filter cylinder (1). The upper end of the multi-stage filtration module (3-1) is provided with a stepped groove (3-2), and an inlet diversion sealing cap (3-3) is fastened to the stepped groove (3-2).

2. A multi-stage filtration assembly for a membrane device according to claim 1, wherein, The filter cylinder (1) is provided with a collection cover (3-4) inside, and the collection cover (3-4) is attached to the inner side wall of the filter cylinder (1).

3. The multi-stage filtration assembly of claim 1, wherein, The filter cleaning assembly (4) includes a constant temperature chamber (4-1), which is fitted onto the outer wall of the filter cylinder (1). A heat exchange coil (4-2) is provided inside the constant temperature chamber (4-1). A plug-in groove (4-3) is provided on the top of the filter cylinder (1), and a snap-on cover (4-4) is sealed and inserted into the plug-in groove (4-3).

4. A multi-stage filtration assembly for a membrane device according to claim 3, characterized in that, Both the snap-on cover (4-4) and the filter cylinder (1) have liquid passage pipes (4-5). The outer side wall of the liquid passage pipe (4-5) has a sliding groove (4-6). The sliding groove (4-6) is fitted with a sliding sleeve (4-7). The inner side wall of the sliding sleeve (4-7) is provided with a meshing thread (4-8).

5. A multi-stage filtration assembly for a membrane device according to claim 4, characterized in that, The inner top of the sliding sleeve (4-7) is provided with a sealing gasket (5), and the upper end of the sealing gasket (5) is sealed and fitted to the inner top of the sliding groove (4-6).

6. A multi-stage filtration assembly for a membrane device according to claim 1, characterized in that, The multi-stage filtration module (3-1) is a cylindrical structure formed by stacking multiple filter membranes one by one.

7. A multi-stage filtration assembly for a membrane device according to claim 3, characterized in that, The inner wall of the constant temperature chamber (4-1) is provided with a heat insulation layer (6).

8. A multi-stage filtration assembly for a membrane device according to claim 2, characterized in that, The bottom of the collection cover (3-4) is provided with a collection plate (7), and the collection plate (7) is sealed to the collection cover (3-4).

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