A high-capacity liquid inlet filter element

Abstract

This utility model relates to the field of filter element technology, specifically a high-capacity liquid-inlet filter element, comprising a housing, an inlet pipe connected to the top of the left side wall of the housing, an outlet pipe connected to the middle of the lower surface of the housing, and a filtration module inside the housing. During operation, water enters the housing through the inlet pipe, is filtered by the filtration module, and then flows out through the outlet pipe. It utilizes a composite filtration structure consisting of an outer coarse filtration layer, a middle adsorption layer, and an inner fine filtration layer, with the filtration precision of the three layers increasing sequentially to form a gradient filtration structure. This structure can sequentially intercept impurities of different particle sizes in the liquid, achieving precise interception at each stage. Furthermore, the spacing between each layer maximizes its dust-holding potential, significantly increasing the overall dirt-holding capacity of the filter element, reducing the risk of clogging, effectively extending the filter element's lifespan, and eliminating the need for frequent replacements, thus reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of filter element technology, specifically a liquid inlet filter element with a large dirt holding capacity. Background Technology

[0002] Filter cartridges are the core components of fluid filtration systems, and their performance directly affects the cleanliness, equipment lifespan, and operational reliability of the entire system. Inlet filter cartridges are typically installed at the pump inlet and are primarily used to filter larger particulate contaminants in the fluid, protecting critical components such as the pump from damage.

[0003] Currently, some inlet filter elements use a single filter layer structure, with relatively simple filtration channels, limited dirt holding capacity, and low dust holding capacity. They are prone to clogging under conditions of high pollutant load, which greatly shortens the service life of the filter element, requires frequent replacement, and increases maintenance costs. Therefore, a liquid inlet filter element with a large dirt holding capacity is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a liquid inlet filter element with a large dirt holding capacity to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-capacity liquid-feed filter element, comprising a housing, an inlet pipe connected to the top of the left side wall of the housing, an outlet pipe connected to the middle of the lower surface of the housing, and a filtration module provided inside the housing. The filtration module includes an outer coarse filter layer, a middle adsorption layer, and an inner fine filter layer. The outer coarse filter layer, the middle adsorption layer, and the inner fine filter layer are all cylindrical. The outer coarse filter layer, the middle adsorption layer, and the inner fine filter layer are arranged alternately from the outside to the inside, and the gaps between the outer coarse filter layer, the middle adsorption layer, and the inner fine filter layer decrease in size from large to small.

[0006] As a further preferred embodiment of this technical solution: the outer coarse filter layer is made of stainless steel wire wound at a specific interval.

[0007] As a further preferred embodiment of this technical solution: the middle adsorption layer is a meltblown cotton layer doped with active alumina particles.

[0008] As a further preferred embodiment of this technical solution: the inner fine filter layer is a fine non-woven fabric layer.

[0009] As a further preferred embodiment of this technical solution: the inner bottom wall of the housing is fixedly connected with an outer positioning ring sleeve, a middle positioning ring sleeve, and an inner positioning ring sleeve, respectively. The outer positioning ring sleeve, the middle positioning ring sleeve, and the inner positioning ring sleeve are arranged sequentially from the outside to the inside. The bottom end of the outer coarse filter layer is inserted into the inner side wall of the outer positioning ring sleeve, the bottom end of the middle adsorption layer is inserted into the inner side wall of the middle positioning ring sleeve, and the bottom end of the inner fine filter layer is inserted into the inner side wall of the inner positioning ring sleeve.

[0010] As a further preferred embodiment of this technical solution: the upper surface of the housing is connected to a backflush pipe, and a sealing cap is threadedly connected to the top of the outer side wall of the backflush pipe.

[0011] As a further preferred embodiment of this technical solution: a drain pipe is connected to the bottom of the right side wall of the housing, and a sealing cap is threadedly connected to the right side of the outer side wall of the drain pipe.

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

[0013] During operation, water enters the housing through the inlet pipe, is filtered by the filtration module, and then flows out through the outlet pipe. The water passes through a composite filtration structure consisting of an outer coarse filtration layer, a middle adsorption layer, and an inner fine filtration layer. The filtration precision of the three layers increases sequentially, forming a gradient filtration structure that can sequentially trap impurities of different particle sizes in the liquid, achieving precise interception at each stage. Furthermore, the spacing between each layer maximizes its dust-holding potential, significantly increasing the overall dirt-holding capacity of the filter element, reducing the risk of clogging, effectively extending the filter element's lifespan, and eliminating the need for frequent replacements, thus reducing maintenance costs. Attached Figure Description

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

[0015] Figure 2 This is a bottom view of the structure of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 In this utility model Figure 3 Enlarged view of the structure of area A;

[0018] Figure 5 This is a cross-sectional view of the shell structure in this utility model;

[0019] Figure 6 This is a cross-sectional view of the outer positioning ring sleeve in this utility model.

[0020] In the picture:

[0021] 1. Shell; 2. Inlet pipe; 3. Outlet pipe; 4. Filter module; 41. Outer coarse filter layer; 42. Middle adsorption layer; 43. Inner fine filter layer; 5. Outer positioning ring sleeve; 6. Middle positioning ring sleeve; 7. Inner positioning ring sleeve; 8. Backflush pipe; 9. Sealing cap one; 10. Drain pipe; 11. Sealing cap two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "equipment" 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; 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 application according to the specific circumstances.

[0024] Please see Figure 1-6This utility model provides a technical solution: a high-capacity liquid-feed filter element, including a shell 1, an inlet pipe 2 connected to the top of the left side wall of the shell 1, an outlet pipe 3 connected to the middle of the lower surface of the shell 1, and a filter module 4 inside the shell 1. The filter module 4 includes an outer coarse filter layer 41, a middle adsorption layer 42, and an inner fine filter layer 43. The outer coarse filter layer 41, the middle adsorption layer 42, and the inner fine filter layer 43 are all cylindrical. The outer coarse filter layer 41, the middle adsorption layer 42, and the inner fine filter layer 43 are arranged alternately from the outside to the inside, and the gaps between the outer coarse filter layer 41, the middle adsorption layer 42, and the inner fine filter layer 43 decrease in size from large to small. The gap between layer 42 and inner fine filter layer 43 is 2mm. Water enters the housing 1 through the inlet pipe 2, and after being filtered by the filter module 4, it flows out along the outlet pipe 3. Through the composite filtration structure of outer coarse filtration, middle adsorption and inner fine filtration, and the filtration accuracy of the three filter layers increases sequentially, a gradient filtration structure is formed. It can sequentially intercept impurities of different particle sizes in the liquid, achieving precise interception at each stage. In addition, the gap between each layer allows each layer to exert its maximum dust holding potential, greatly improving the dirt holding capacity of the entire filter element, reducing the risk of clogging, effectively improving the service life of the filter element, and reducing maintenance costs by eliminating the need for frequent replacement.

[0025] In this embodiment, specifically: the outer coarse filter layer 41 is made of stainless steel wire wound at a specific interval; it is mainly used to intercept large particles and fibrous impurities in the fluid, and provides strong external protection by means of the strong properties of stainless steel wire, preventing the filter module 4 from being crushed by external water pressure.

[0026] In this embodiment, specifically: the middle adsorption layer 42 is a meltblown cotton layer doped with activated alumina particles; the meltblown cotton layer doped with activated alumina particles can not only perform further mechanical filtration, but also adsorb colloids in the water, further improving the filtration effect.

[0027] In this embodiment, specifically: the inner fine filter layer 43 is a fine non-woven fabric layer; the fine non-woven fabric layer serves as the last line of defense, intercepting extremely small particles that may pass through the first two layers.

[0028] In this embodiment, specifically: the inner bottom wall of the housing 1 is fixedly connected with an outer positioning ring sleeve 5, a middle positioning ring sleeve 6, and an inner positioning ring sleeve 7, which are arranged sequentially from the outside to the inside. The bottom end of the outer coarse filter layer 41 is inserted into the inner side wall of the outer positioning ring sleeve 5, the bottom end of the middle adsorption layer 42 is inserted into the inner side wall of the middle positioning ring sleeve 6, and the bottom end of the inner fine filter layer 43 is inserted into the inner side wall of the inner positioning ring sleeve 7. The outer positioning ring sleeve 5, the middle positioning ring sleeve 6, and the inner positioning ring sleeve 7 serve to limit the movement of the filter module 4.

[0029] In this embodiment, specifically: the upper surface of the housing 1 is connected to a backflush pipe 8, and the top of the outer side wall of the backflush pipe 8 is threaded with a sealing cap 9; after the filter element has been used for a period of time, the sealing cap 9 is unscrewed, and the backflush pipe 8 is connected to an external high-pressure water pipe, so that high-pressure water can be introduced into the housing 1.

[0030] In this embodiment, specifically: a drain pipe 10 is connected to the bottom of the right side wall of the housing 1, and a sealing cap 2 11 is threadedly connected to the right side of the outer side wall of the drain pipe 10; the inlet pipe 2 and the outlet pipe 3 are closed, the sealing cap 1 9 and the sealing cap 2 11 are unscrewed, and high-pressure water is introduced into the housing 1 along the backwash pipe 8 to backwash the filter module 4, so that impurities can flow out along the drain pipe 10, thereby cleaning the filter element, reducing the risk of filter element blockage due to excessive accumulation of impurities inside the filter element, reducing the frequency of filter element replacement, and helping to reduce the cost of use.

[0031] The working principle of this utility model is as follows: Water enters the housing 1 through the inlet pipe 2, and after being filtered by the filter module 4, it flows out along the outlet pipe 3. Through a composite filtration structure consisting of an outer coarse filter, a middle adsorption layer, and an inner fine filter, the outer coarse filter layer 41 is made of stainless steel wire wound at specific intervals. It is mainly used to intercept large particles and fibrous impurities in the fluid, and the strong properties of the stainless steel wire provide powerful external protection, preventing the filter module 4 from being crushed by external water pressure. The middle adsorption layer 42 is a meltblown cotton layer doped with activated alumina particles. This meltblown cotton layer with activated alumina particles not only provides further mechanical filtration... Furthermore, it can adsorb colloids in the water, further improving the filtration effect. The inner fine filter layer 43 is a fine non-woven fabric layer, which acts as the last line of defense, intercepting extremely small particles that may pass through the first two layers. The filtration precision of the three filter layers increases sequentially, forming a gradient filtration structure that can sequentially intercept impurities of different particle sizes in the liquid, achieving precise interception at each stage. In addition, there is a gap between each layer, and each layer exerts its maximum dust holding potential, greatly improving the overall dirt holding capacity of the filter element, reducing the risk of clogging, effectively improving the service life of the filter element, and reducing maintenance costs by eliminating the need for frequent replacements.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-capacity liquid-feed filter element, characterized in that: The device includes a housing (1), with an inlet pipe (2) connected to the top of the left side wall of the housing (1) and an outlet pipe (3) connected to the middle of the lower surface of the housing (1). The housing (1) is equipped with a filter module (4), which includes an outer coarse filter layer (41), a middle adsorption layer (42), and an inner fine filter layer (43). The outer coarse filter layer (41), the middle adsorption layer (42), and the inner fine filter layer (43) are all cylindrical. The outer coarse filter layer (41), the middle adsorption layer (42), and the inner fine filter layer (43) are arranged alternately from the outside to the inside. The gaps between the outer coarse filter layer (41), the middle adsorption layer (42), and the inner fine filter layer (43) decrease from large to small.

2. The high-contamination-holding liquid inlet filter element according to claim 1, characterized in that: The outer coarse filter layer (41) is made of stainless steel wire wound together.

3. The high-contamination-holding liquid inlet filter element according to claim 2, characterized in that: The middle adsorption layer (42) is a meltblown cotton layer doped with active alumina particles.

4. The high-contamination-holding liquid inlet filter element according to claim 3, characterized in that: The inner fine filter layer (43) is a fine non-woven fabric layer.

5. The high-contamination-holding liquid inlet filter element according to claim 4, characterized in that: The inner bottom wall of the housing (1) is fixedly connected to an outer positioning ring sleeve (5), a middle positioning ring sleeve (6) and an inner positioning ring sleeve (7). The outer positioning ring sleeve (5), the middle positioning ring sleeve (6) and the inner positioning ring sleeve (7) are arranged sequentially from the outside to the inside. The bottom end of the outer coarse filter layer (41) is inserted into the inner side wall of the outer positioning ring sleeve (5), the bottom end of the middle adsorption layer (42) is inserted into the inner side wall of the middle positioning ring sleeve (6), and the bottom end of the inner fine filter layer (43) is inserted into the inner side wall of the inner positioning ring sleeve (7).

6. The high-contamination-holding liquid inlet filter element according to claim 5, characterized in that: The upper surface of the housing (1) is connected to a backflush pipe (8), and a sealing cap (9) is threadedly connected to the top of the outer side wall of the backflush pipe (8).

7. The high-contamination-holding liquid inlet filter element according to claim 6, characterized in that: The bottom of the right side wall of the housing (1) is connected to a drain pipe (10), and the right side of the outer side wall of the drain pipe (10) is threaded with a sealing cap (11).

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