Purging filter element frame structure and cleaning and filtering system

Abstract

The utility model provides a purging filter element frame structure and a cleaning and filtering system, and solves the problems that in the prior art, a filtering device lacks a cleaning means and is low in space utilization rate, the purging filter element frame structure comprises a filtering shell, a purging filter element, a purging filter element and a purging filter element, the filter element is arranged in the accommodating cavity of the filter shell; the purging pipeline is arranged in the accommodating cavity, is led out from the filter shell and is communicated with compressed air, a plurality of air outlet holes which are distributed towards the filter element are formed in the purging pipeline, and the compressed air enters the purging pipeline and forms high-speed air flow which is blown to the filter element through the air outlet holes.

Description

TECHNICAL FIELD

[0001] The utility model relates to small -size filter device technical field especially, and it is a kind of purging filter core frame structure and filter system. BACKGROUND

[0002] In heavy truck application field, especially in the harsh working environment like mine where smoke diffuses, heavy truck runs for a long time, and the surface of its radiator is often attached with a thick layer of dust. At the same time, the engine of heavy truck generates a large amount of heat energy when running, which must rely on the radiator for heat dissipation. Once the surface of the radiator is accumulated with too much dust, the heat dissipation will be blocked, causing the temperature of the engine coolant to rise continuously, and the overheat condition occurs. This not only weakens the power output of the engine, but also is likely to cause serious mechanical failures such as cylinder pulling and shaft holding, greatly shortening the service life of the engine.

[0003] The filter device is widely used to intercept impurities such as dust and particulate matter in the environment to prevent pollutants from blocking the radiator channel and reducing the heat exchange efficiency. The traditional filter device usually adopts a multi-layer filter screen or filter core structure to achieve the filtering function by physical interception. However, when such device is used in heavy truck field, it has the following problems:

[0004] 1. Lack of cleaning means: the filter core is easily accumulated with impurities during long-term use, causing the pressure drop to rise and the ventilation volume to decrease, so it needs to be replaced frequently or cleaned manually, which significantly increases the maintenance cost and affects the system operation continuity

[0005] 2. Low space utilization: the existing filter device needs a large radial installation space, which is difficult to adapt to the structural requirements of compact equipment, not to mention that the additional cleaning structure will further increase the occupied space;

[0006] 3. Energy consumption and efficiency contradiction: the ratio of the total area of the air outlet hole to the cross-sectional area of the air inlet pipe is not reasonable. If the total area of the air outlet hole is too large, the air flow velocity is insufficient, and the purging effect is poor. If the total area of the air outlet hole is too small, it will cause insufficient air release volume at a time, which will also affect the purging effect;

[0007] 4. Poor structure adaptability: the purging pipeline is usually fixed in shape (such as circular or rectangular closed loop), which is difficult to adjust flexibly according to the shape of the radiator, limiting its application in complex scenarios. UTILITY MODEL CONTENTS

[0008] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a purging filter core frame structure and filter system to solve the problems of lack of cleaning means and low space utilization of the filter device in the prior art.

[0009] In order to solve the above technical problems, the utility model provides a kind of blow -off filter core frame structure, to filter dust impurities in space environment and utilize compressed gas blow -off cleaning, comprising:

[0010] Filtering shell, the filtering shell is provided with accommodating cavity;

[0011] Filter core, the filter core is arranged in the accommodating cavity of the filtering shell;

[0012] Blow -off pipeline, the blow -off pipeline is arranged in the accommodating cavity, and from filtering shell leads out and is communicated with compressed gas, a plurality of gas outlet holes are opened in the blow -off pipeline and are arranged towards filter core, and the compressed gas enters the blow -off pipeline and forms high -speed airflow towards filter core via gas outlet hole.

[0013] As a more preferred mode, the filtering shell includes a filtering frame, a front protective net and a rear protective net, wherein the filtering frame is provided with a front opening and a rear opening communicated with the accommodating cavity, and the front protective net and the rear protective net cover the front opening and the rear opening respectively;The front protective net and the rear protective net can fix the filter core, prevent the filter core from falling off, and facilitate the disassembly of the filtering shell, thereby facilitating the replacement or maintenance of the filter core.

[0014] As a more preferred mode, the front protective net and the rear protective net are provided with a hollow structure, which ensures the circulation of air in the air environment and protects the filter core and the blow -off pipeline in the accommodating cavity.

[0015] As a more preferred mode, the hollow structure includes but is not limited to one or a combination of a diamond net, a round hole net and a woven net.

[0016] As a more preferred mode, the filter core adopts a flat plate structure, and the blow -off pipeline is arranged on the parallel blow -off plane of the plate structure;The space required for arranging the filter core and the blow -off equipment in the accommodating cavity is greatly saved, which provides conditions for arrangement in equipment with limited space, while ensuring the blow -off effect.

[0017] As a more preferred mode, the blow -off pipeline includes a plurality of hollow air tubes, and the plurality of hollow air tubes are connected to each other to form a closed structure or a semi -closed structure, and the plurality of hollow air tubes are connected to each other to form a blow -off frame matched with the filter core, which has higher applicability;The semi -closed structure has lower manufacturing cost and is more convenient to produce, and the closed structure can ensure that the compressed gas flows more smoothly in the blow -off frame.

[0018] As a more preferred mode, the shape of the hollow air tube includes but is not limited to one or a combination of square tube, round tube, drop-shaped tube, patterned tube and special-shaped tube, and the hollow air tube with multiple shapes corresponds to different blow -off requirements of filter core.

[0019] As a more preferred way, the sum of the area of the gas outlet section of all the gas outlet holes S1 and the gas inlet section S2 of the blowing pipe are in the following relationship: S1 < 5S2; thus, a high-speed airflow blowing towards the filter core via the gas outlet holes can be ensured, meeting the minimum requirement for dust blowing.

[0020] As a more preferred way, the sum of the area of the gas outlet section of all the gas outlet holes S1 and the gas inlet section S2 of the blowing pipe are in the following relationship: S1 < 5S2; thus, a high-speed airflow blowing towards the filter core via the gas outlet holes can be ensured, meeting the minimum requirement for dust blowing.

[0021] To solve the above problems, the utility model also provides a filter cleaning system, including:

[0022] The above-mentioned blowing filter core frame structure;

[0023] A power pack, the power pack stores compressed gas, and the blowing pipe is led out from the filter shell and connected with the power pack;

[0024] The filter cleaning system further includes a control unit connected with the power pack, used to control the opening and closing, interval and duration of the power release of the compressed gas.

[0025] As described above, the blowing filter core frame structure and the filter cleaning system have the following beneficial effects: the blowing filter core frame structure of the utility model is set in an air inlet channel in the environmental space during work, and the filter core is used to filter dust and impurities in the environmental space, and the dust and impurities will adhere to the surface of the filter core; then, the compressed gas enters the blowing pipe and forms a high-speed airflow blowing towards the filter core via the gas outlet holes; in this process, the pressure energy in the compressed gas will form a high-speed airflow when the compressed gas passes through the gas outlet holes, according to the fluid continuity principle and Bernoulli equation, because the cross-sectional area of the gas outlet holes is small, a great kinetic energy is obtained, and the high-speed airflow directly acts on the surface of the filter core; when the airflow impacts the dust and impurities, an impact force is applied to the dust and impurities, which can overcome the adhesion and friction between the dust and the surface of the object, so that the dust and impurities are separated from the surface of the object.

[0026] This utility model's filtration system utilizes a power pack containing compressed gas instead of an air compressor during operation, reducing the overall system size. The separate design of the power pack allows for independent installation of the power pack and the filter element frame structure, further improving space utilization. Secondly, by controlling the interval between the opening and closing of the compressed gas release via the control unit, the frequency of each purging cycle can be adjusted, allowing for a suitable frequency to be adjusted according to the current working environment, ensuring purging effectiveness while reducing losses. Furthermore, by adjusting the duration of each compressed gas release cycle, the effectiveness of each purging cycle can be adjusted to ensure optimal dust removal.

[0027] In summary, the purge filter frame structure and filtration system of this utility model, through the cooperation of the filter element and the purge pipe structure, avoid the accumulation of impurities on the filter element. At the same time, the split-type filtration system design improves space utilization and solves the problems of lack of cleaning means and low space utilization in existing filtration devices. Attached Figure Description

[0028] Figure 1 The image shown is an exploded view of the purge filter element frame structure of this utility model.

[0029] Figure 2 The diagram shown is a structural schematic of the purge filter element frame structure of this utility model.

[0030] Component designation explanation

[0031] 1. Filter housing

[0032] 11 Filter frame

[0033] 12 Front protective netting

[0034] 13 Rear protective netting

[0035] 131 Hollowed-out structure

[0036] 14 Reinforced Beams

[0037] 2 Filter Cartridges

[0038] 3. Purge the pipes

[0039] 31. Hollow trachea Detailed Implementation

[0040] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0041] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0044] like Figure 1 as well as Figure 2 As shown, this utility model provides a purge filter element frame structure for filtering dust and impurities in the space environment and cleaning them by purge with compressed gas, including:

[0045] A filter housing 1, wherein a receiving cavity is provided on the filter housing 1;

[0046] Filter element 2, which is disposed in the receiving cavity of the filter housing 1;

[0047] The purge pipe 3 is disposed in the accommodating cavity and leads out from the filter housing 1 to communicate with the compressed gas. The purge pipe 3 has a number of air outlets arranged towards the filter element 2. The compressed gas enters the purge pipe 3 and forms a high-speed airflow towards the filter element 2 through the air outlets.

[0048] To better illustrate the purge filter element frame structure of this utility model, the following specific application will be used as an example: During operation, the filter housing 1 is placed in an air inlet channel within the ambient space. The filter element 2 filters dust and impurities in the ambient space, and these dust and impurities adhere to the surface of the filter element 2. Next, compressed gas enters the purge pipe 3, forming a high-speed airflow that blows towards the filter element 2 through the outlet. During this process, the pressure energy in the compressed gas is generated when the compressed gas passes through the outlet. Due to the small cross-sectional area of ​​the outlet, according to the principle of fluid continuity and Bernoulli's equation, the compressed gas forms a high-speed airflow at the outlet, gaining significant kinetic energy. This high-speed airflow directly acts on the surface of the filter element 2. When the airflow impacts the dust and impurities, it exerts an impact force. This impact force overcomes the adhesion and friction between the dust and the object's surface, causing the dust and impurities to detach from the object's surface.

[0049] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the purging pipe 3 can be fixed to the filter housing 1 by various soft and hard connection methods such as pipe clamps, welding, threaded connection, and adapters.

[0050] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the filter housing 1 includes a filter frame 11, a front protective net 12, and a rear protective net 13. The filter frame 11 is provided with a front opening and a rear opening that communicate with the accommodating cavity. The front protective net 12 and the rear protective net 13 respectively cover the front opening and the rear opening. The design of the front protective net 12 and the rear protective net 13 can fix the filter element 2 and prevent the filter element 2 from falling off. On the other hand, it can also facilitate the disassembly of the filter housing 1, thereby facilitating the replacement or maintenance of the filter element 2.

[0051] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the outer contour of the filter housing 1 can be adaptively selected according to the spatial requirements of the layout, including but not limited to cuboid structure, cube structure, cylindrical structure, frustum structure, conical structure and spherical structure.

[0052] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the front protective net 12 and the rear protective net 13 are provided with a hollow structure 131. The hollow structure 131 ensures that air can circulate in the air-drop environment, while protecting the filter element 2 and the purge pipe 3 in the accommodating cavity.

[0053] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the hollow structure 131 includes, but is not limited to, one or a combination of diamond mesh, round hole mesh, and woven mesh.

[0054] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the filter element 2 adopts a flat plate structure, and the corresponding purging pipe 3 is arranged on the purging plane parallel to the plate structure; this greatly saves the space required for accommodating the filter element 2 and the purging equipment, providing conditions for installation in equipment with limited space, while ensuring the purging effect.

[0055] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the plate-like structure of the filter element 2 can be selected according to the spatial environment in which it is laid out, including but not limited to: circular, elliptical, square, rectangular, triangular and various polygonal shapes; more specifically, the number of filter elements 2 can also include multiple, and the plate-like structures of multiple filter elements 2 can also include the above-mentioned multiple types.

[0056] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the purging pipe 3 includes multiple hollow air tubes 31, which are interconnected to form a closed or semi-closed structure. The multiple hollow air tubes 31 form a purging frame that is compatible with the filter element 2, making it more versatile. The semi-closed structure has a lower manufacturing cost and is more convenient to produce, while the closed structure can ensure that the compressed gas flows more smoothly in the purging frame.

[0057] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the shape of the air outlet includes, but is not limited to, one or more of the following: circular, spherical, elliptical, cyclone-shaped, and caterpillar-shaped. Different air outlet shapes correspond to different purging strategies. More specifically, when the air outlet is circular, its diameter ranges from 1mm to 15mm. Within this range, a suitable purging effect can be guaranteed.

[0058] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the air outlets are staggered on the hollow air tube 31, and the included angle between the lines connecting adjacent air outlets is in the range of 15° to 180°. The staggered distribution of the gas corresponds to different outer contours of the filter element 2 and different dust removal requirements. The purging effect is optimized by continuously adjusting the distribution of the air outlets.

[0059] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the hollow air tube 31 can be in various shapes, including but not limited to square tubes, round tubes, teardrop tubes, patterned tubes, and irregularly shaped tubes, with different shapes of hollow air tubes 31 corresponding to different filter element 2 purging requirements.

[0060] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the sum of the areas S1 of the air outlet cross-sections of all the air outlets is related to the air inlet cross-section S2 of the purging pipe 3 as follows: S1 < 5S2; this ensures that a high-speed airflow is formed through the air outlets and blown towards the filter element 2, meeting the minimum requirements for dust purging; in some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 As shown, the sum of the areas S1 of the air outlet cross sections of all the air outlets is further limited to the relationship with the air inlet cross section S2 of the blowing pipe 3 as follows: S2≤S1≤2S2; this ensures that a high-speed airflow is formed through the air outlets and blown toward the filter element 2, while ensuring a strong air volume and a good dust removal blowing effect.

[0061] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 2 Figure 1 Figure 2 As shown, the filter frame 11 is a cuboid structure, and a reinforcing beam 14 is provided inside the filter frame 11. The accommodating cavity is divided into two equal regions by the reinforcing beam 14. The filter element 2 includes two elements, which are respectively disposed in the two regions. The purging pipe 3 includes multiple hollow air pipes 31, which are interconnected on the purging plane, wherein the purging plane is horizontal with the plate-like structure. More specifically, in this embodiment, one end of the purging pipe 3 is fixed to the long side of the filter frame 11, and the other end is fixed to the short side of the filter frame 11. The middle part of the purging pipe 3 is fixed to the reinforcing beam 14. Furthermore, in this embodiment, there can be multiple reinforcing beams 14, and their positions can be adjusted as needed, which will not be elaborated here.

[0062] To address the aforementioned problems, this utility model also provides a filtration system, comprising:

[0063] The above-mentioned purge filter element frame structure;

[0064] A power pack containing compressed gas, and a purge pipe 3 extending from the filter housing 1 and connected to the power pack;

[0065] The filtration system also includes a control unit connected to the power pack, which controls the opening and closing, interval, and duration of power release of compressed gas.

[0066] To better illustrate the filtration system of this invention, the following specific application will be used as an example: During operation, the filtration system utilizes a power pack containing compressed gas to replace the air compressor, reducing the overall system size. The separate design of the power pack allows for independent installation of the power pack and the purge filter element frame structure, further improving space utilization. Secondly, by controlling the opening and closing intervals of compressed gas release through the control unit, the frequency of a single purge can be adjusted, thereby achieving a suitable frequency based on the current working environment, ensuring purging effectiveness while reducing losses. Furthermore, adjusting the duration of each compressed gas release adjusts the purging effect, ensuring effective dust removal per purge. It can be seen that the purge filter element frame structure and filtration system of this invention, through the cooperation of the filter element 2 and the purge pipe 3, prevent impurities from accumulating on the filter element 2. Simultaneously, the separate filtration system design improves space utilization, solving the problems of insufficient cleaning methods and low space utilization in existing filtration devices.

[0067] In some possible embodiments of this utility model, the connection between the control unit and the power pack has two meanings. First, the control unit and the power pack are electrically connected, so that the control unit can control the power pack to take relative actions through electrical signals. Second, the control unit and the power pack are connected through a flexible structure, so that the connection between the control unit and the power pack can adapt to stress changes in complex environments, avoid structural damage, and extend service life.

[0068] In summary, the purge filter element frame structure and filtration system of this utility model have the following advantages:

[0069] 1. Highly efficient blowing and cleaning function

[0070] This invention utilizes compressed gas to create a high-speed airflow by setting up a purge pipe 3 and an air outlet, which can effectively purge dust and impurities from the surface of the filter element 2. The various shapes and staggered distribution of the air outlets can be optimized according to different filter element 2 shapes and dust removal requirements to ensure the purge effect.

[0071] The reasonable ratio of the air outlet cross-sectional area to the air inlet cross-sectional area of ​​the purging pipe 3 is S1 < 5S2, and S2 ≤ S1 ≤ 2S2, which ensures the intensity and volume of the high-speed airflow and further improves the dust removal effect.

[0072] 2. Structural optimization and space utilization

[0073] The filter element 2 adopts a flat plate structure, and the purge pipe 3 is arranged on a parallel purge plane, which greatly saves the space required for the housing cavity to accommodate the filter element 2 and the purge equipment, making it suitable for installation in equipment with limited space.

[0074] The outer contour of the filter housing 1 can be selected in various shapes such as cuboid, cube, cylinder, etc., according to the needs of the installation space, which improves the adaptability and flexibility of the structure.

[0075] The purging pipe 3 can be configured into a closed or semi-closed structure, further improving its applicability and ease of production.

[0076] 3. Convenience of filter element 2 fixing and maintenance

[0077] The filter housing 1 includes a filter frame 11, a front protective net 12 and a rear protective net 13. The design of the protective net not only fixes the filter element 2 to prevent it from falling off, but also facilitates disassembly and maintenance.

[0078] The number and shape of filter element 2 can be flexibly selected according to needs, further improving the adaptability of the system.

[0079] 4. System optimization and intelligent control

[0080] The filtration system uses a power pack to store compressed gas, replacing the traditional air compressor, which reduces the overall system size and improves space utilization.

[0081] The control unit can adjust the opening and closing, interval and duration of compressed gas release, and dynamically adjust the purging frequency and effect according to the working environment, thereby reducing energy consumption and losses.

[0082] 5. Overall performance improvement

[0083] The purge filter frame structure and cleaning system of this utility model solve the problems of lack of cleaning means and low space utilization in the existing filtration devices. Through structural optimization and intelligent control, it achieves the dual functions of high-efficiency filtration and cleaning.

[0084] In summary, the purge filter frame structure and filtration system of this utility model achieve the dual goals of high-efficiency cleaning and space utilization by optimizing the design of the purge pipe 3 and the filter element 2. Its structure is flexible and highly adaptable, and the intelligent control unit enhances the overall performance of the system, overcoming the shortcomings of existing filtration devices.

[0085] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0086] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A purge filter cartridge frame structure for filtering dust impurities in a space environment and cleaning by compressed gas purge, characterized by, The application relates to a filter system. The filter system comprises a filter shell (1) provided with a containing cavity; a filter core (2) arranged in the containing cavity of the filter shell (1); and a blowing pipeline (3) arranged in the containing cavity and led out of the filter shell (1) to communicate with compressed gas, wherein a plurality of air outlet holes are formed on the blowing pipeline (3) and arranged towards the filter core (2), and the compressed gas enters the blowing pipeline (3) and forms a high-speed airflow blowing towards the filter core (2) through the air outlet holes. The filter shell (1) comprises a filter frame (11), a front protective net (12) and a rear protective net (13), wherein the filter frame (11) is provided with a front opening and a rear opening communicated with the containing cavity, and the front protective net (12) and the rear protective net (13) cover the front opening and the rear opening respectively. The front protective net (12) and the rear protective net (13) are provided with a hollow structure (131), which ensures the circulation of air in the air environment and protects the filter core (2) and the blowing pipeline (3) in the containing cavity.

2. The purge cartridge frame structure of claim 1, wherein: The hollow structure (131) comprises one or a combination of a plurality of rhombic nets, circular hole nets and woven nets.

3. The purge cartridge frame structure of claim 2, wherein: The filter core (2) adopts a flat plate structure, and the blowing pipeline (3) is arranged on a parallel blowing plane of the plate structure.

4. The purge cartridge frame structure of claim 3, wherein: The blowing pipeline (3) comprises a plurality of hollow air tubes (31) which are connected to each other to form a closed structure or a semi-closed structure.

5. The purge cartridge frame structure of claim 1, wherein: The hollow air tube (31) comprises one or a combination of a plurality of square tubes, circular tubes, drop-shaped tubes, patterned tubes and special-shaped tubes.

6. The purge cartridge frame structure of claim 1, wherein: The sum S1 of the areas of the air outlet sections of all the air outlet holes is less than 5S2 of the air inlet section S2 of the blowing pipeline (3).

7. The purge cartridge frame structure of claim 6, wherein: The sum S1 of the areas of the air outlet sections of all the air outlet holes is further limited to S2<=S1<=2S2 of the air inlet section S2 of the blowing pipeline (3).

8. The purge cartridge frame structure of claim 1, wherein: The application further relates to a filter system.

9. The purge cartridge frame structure of claim 8, wherein: The filter system comprises the blowing filter core frame structure in any one of claims 1 to 9; a power pack storing compressed gas, wherein the blowing pipeline (3) is led out of the filter shell (1) and connected to the power pack; and a control unit connected to the power pack and used for controlling the opening and closing, interval and duration of the power release of the compressed gas.

10. A filtration system, comprising: ​ ​ ​ ​

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