Filter bag cartridge interface ring with universal fitting structure

Abstract

The utility model provides a kind of filter bag filter core interface ring with general adaptive structure, it includes bearing inner ring, bearing outer ring and radial washer, the filter bag filter core interface ring is switched quickly by bearing inner ring and bearing outer ring combination structure to realize filter core and filter bag, without replacing interface structure can be adapted to different filtering needs, significantly improve production flexibility, reduce equipment modification cost, radial washer is formed double-lip structure by V-shaped notch design, lip adapts to shrink or swell when being pressed, enhance radial dynamic sealing effect, the axial washer of mating end ring further prevents medium leakage, double sealing design is applicable to high pressure or high-precision filtering scene, compatibility, sealing and maintenance efficiency are all superior to traditional fixed interface.

Description

Technical Field

[0001] This utility model relates to filtration equipment, and more particularly to a filter bag / filter element interface ring with a universally adaptable structure. Background Technology

[0002] Filter cartridges generally consist of a filter medium and a support structure. The filter medium is used to intercept, adsorb, or separate pollutants, while the support structure is used to maintain the shape of the filter cartridge and prevent the filter medium from collapsing under pressure. Compared with filter bags, their structure is more complex and the cost is higher. In the processing of some viscous materials, filter cartridges are easily clogged by these viscous materials, greatly reducing their service life and requiring frequent cleaning or replacement. Filter bags, on the other hand, can adsorb more viscous impurities, extending the replacement cycle. At the same time, the filter medium in a filter cartridge needs to be folded, thus greatly limiting the number of its layer structure. Filter bags, however, can have more layers, forming more pores through the three-dimensional stacking of fibers. Viscous impurities can be evenly distributed in the fiber gaps, rather than just remaining on the surface. Particles are intercepted step by step, avoiding single-layer clogging, and their dirt holding capacity is greater.

[0003] Patent document CN211753254U discloses a filter bag interface structure, including a hollow first support and a hollow second support mounted above the first support. The first support has an annular groove on its upper surface and a bolt groove on its upper surface near the outer side of the annular groove. The second support has a pressure ring on its lower surface. The first support is first bonded or welded to the position where the filter bag needs to be installed. Then, the filter bag is placed on the first support so that the top of the filter bag fits against the upper surface of the first support, and the outer wall of the filter bag fits against the inner wall of the first support. The second support is then inserted into the first support containing the filter bag, causing the pressure ring to insert into the annular groove, pressing the filter bag in the annular groove to prevent it from slipping off, thus securing the filter bag. However, this filter bag interface structure cannot simultaneously adapt to the installation structures of both filter bags and filter cartridges, resulting in poor installation versatility. Therefore, it is necessary to optimize its structure to overcome these shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a filter bag / filter element interface ring with a universal adaptability structure to expand its compatibility range.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A filter bag / filter element interface ring with a universal adaptability structure, comprising:

[0007] The inner ring is a support ring, which has a filter element support space to support and position the filter element;

[0008] The outer support ring wraps around the outer side of the inner support ring. Its outer wall abuts against the filter bag / filter element assembly port of the filtration equipment, and its inner wall abuts against the outer wall of the inner support ring. The outer support ring supports and positions the inner support ring. The outer support ring has a filter bag support space, which can support and position the filter bag. When using the filter bag, the inner support ring is idle, and the filter bag is installed in the outer support ring. When using the filter element, the filter bag is removed, and the filter element is installed in the inner support ring, which facilitates switching between different filtration structures according to actual production conditions.

[0009] In one embodiment of this utility model, a radial washer is provided between the inner bearing ring and the outer bearing ring. The radial washer abuts against the inner wall of the outer bearing ring and the outer wall of the inner bearing ring, thereby providing a radial seal at the abutment part of the inner bearing ring and the outer bearing ring.

[0010] In one embodiment of the present invention, a V-shaped groove is provided on the axial end face of the radial washer. The V-shaped groove is recessed inward along the axial direction of the radial washer and extends circumferentially along the radial washer, dividing the radial washer into an inner lip and an outer lip. The inner lip abuts against the inner wall of the inner ring of the bearing, and the outer lip abuts against the inner wall of the outer ring of the bearing.

[0011] In one embodiment of this utility model, a positioning protrusion is provided on the outer wall of the inner ring of the bearing. The positioning protrusion is located at the outer end of the inner ring of the bearing. It protrudes radially outward from the inner ring of the bearing and extends circumferentially along the inner ring of the bearing. The outer ring of the bearing covers the outer wall of the positioning protrusion. A positioning groove is provided in the positioning protrusion. The positioning groove is recessed radially into the inner ring of the positioning protrusion and extends circumferentially along the positioning protrusion. Its shape is adapted to the radial washer. The radial washer is embedded in the positioning groove. The outer lip is oblique to the outside of the positioning groove. When it abuts against the inner wall of the outer ring of the bearing, it can retract into the positioning groove.

[0012] In one embodiment of this utility model, the inner end of the outer ring is provided with a limiting end ring. The limiting end ring protrudes radially toward the inner side of the outer ring and extends circumferentially along the outer ring. It abuts against the end face of the positioning protrusion ring and the outer wall of the inner ring, thereby axially limiting the inner ring.

[0013] In one embodiment of this utility model, the outer end of the supporting outer ring is provided with a mating end ring. The mating end ring protrudes radially outward from the outer side of the supporting outer ring and extends circumferentially along the supporting outer ring. Its axial end face abuts against the filter bag filter element assembly port of the filtration device. The mating end ring positions the supporting outer ring in the filtration device.

[0014] In one embodiment of this utility model, an axial washer is embedded in the radial inner end face of the mating end ring. The axial washer abuts against the mating end ring and the filter bag / filter element assembly port, thereby providing an axial seal at the abutment portion between the mating end ring and the filter bag / filter element assembly port.

[0015] The advantages of this utility model are:

[0016] This filter bag / filter element interface ring achieves rapid switching between filter elements and filter bags through a combination structure of a bearing inner ring and a bearing outer ring. It can adapt to different filtration needs without changing the interface structure, significantly improving production flexibility and reducing equipment modification costs. The radial gasket with V-groove design forms a double lip structure. When under pressure, the lip edge adaptively contracts or expands, enhancing the radial dynamic sealing effect. The axial gasket of the mating end ring further prevents media leakage. The double sealing design is suitable for high-pressure or high-precision filtration scenarios and is superior to traditional fixed interfaces in terms of compatibility, sealing performance, and maintenance efficiency. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the filter bag / filter element interface ring with a universal adaptability structure proposed in this utility model;

[0018] Figure 2 This is an exploded view of the filter bag / filter element interface ring;

[0019] Figure 3 This is a schematic diagram of the filter element assembly state of the filter bag filter element interface ring;

[0020] Figure 4 This is a schematic diagram of the filter bag assembly state of the filter bag element interface ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] like Figure 1 , Figure 2As shown, the filter bag / filter element interface ring with a universally compatible structure proposed in this utility model includes a support inner ring 100 and a support outer ring 200. The support inner ring has a filter element support space, which can support and position the filter element. The support outer ring wraps around the outside of the support inner ring, and its outer wall abuts against the filter bag / filter element assembly port of the filtration equipment. Its inner wall abuts against the outer wall of the support inner ring. The support outer ring supports and positions the support inner ring. The support outer ring has a filter bag support space, which can support and position the filter bag.

[0023] In this embodiment, a radial washer 300 is provided between the inner ring and the outer ring. The radial washer abuts against the inner wall of the outer ring and the outer wall of the inner ring, and can provide radial sealing to the abutting part of the inner ring and the outer ring.

[0024] In this embodiment, a V-shaped groove 301 is provided on the axial end face of the radial washer. The V-shaped groove is recessed inward along the axial direction of the radial washer and extends in the circumferential direction of the radial washer, dividing the radial washer into an inner lip 310 and an outer lip 320. The inner lip abuts against the inner wall of the bearing inner ring, and the outer lip abuts against the inner wall of the bearing outer ring.

[0025] In this embodiment, the outer wall of the inner ring is provided with a positioning protrusion 110. The positioning protrusion is located at the outer end of the inner ring and protrudes radially outward from the inner ring and extends circumferentially along the inner ring. The outer ring covers the outer wall of the positioning protrusion. A positioning ring groove 120 is provided in the positioning protrusion. The positioning ring groove is recessed radially into the inner ring and extends circumferentially along the positioning ring. Its shape is adapted to the radial washer. The radial washer is embedded in the positioning ring groove, and its outer lip is biased outward from the positioning ring groove. When it abuts against the inner wall of the outer ring, it can retract into the positioning ring groove.

[0026] In this embodiment, a limiting end ring 210 is provided at the inner end of the outer ring. The limiting end ring protrudes radially toward the inner side of the outer ring and extends circumferentially along the outer ring. It abuts against the end face of the positioning protrusion ring and the outer wall of the inner ring, thereby axially limiting the inner ring.

[0027] In this embodiment, the outer end of the supporting outer ring is provided with a mating end ring 220. The mating end ring protrudes radially outward from the outer side of the supporting outer ring and extends circumferentially along the supporting outer ring. Its axial end face abuts against the filter bag filter element assembly port of the filtration device. The mating end ring positions the supporting outer ring in the filtration device.

[0028] In this embodiment, an axial washer 230 is embedded in the radial inner end face of the mating end ring. The axial washer abuts against the mating end ring and the filter bag / filter element assembly port, which can axially seal the mating part between the mating end ring and the filter bag / filter element assembly port.

[0029] like Figure 3As shown, this interface ring can be fitted with filter element A for filtration, such as... Figure 4 As shown, this interface ring can be fitted with filter bag B for filtration. Conventional filtration equipment generally only supports one type of filter bag or filter element. When process requirements change, it is usually necessary to modify the equipment interface, such as welding a new flange, adjusting the mounting bracket, or even replacing the entire machine, which is costly. However, the interface ring proposed in this utility model adopts a split structure that is directly compatible with two filtration modes. There is no need to modify the original assembly port of the equipment; only the filter media needs to be replaced to meet the requirements.

[0030] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" 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 according to the specific circumstances.

Claims

1. A filter bag / filter element interface ring with a universally adaptable structure, characterized in that, include: The inner ring is a support ring, which has a filter element support space to support and position the filter element; The outer support ring wraps around the outer side of the inner support ring. Its outer wall abuts against the filter bag / filter element assembly port of the filtration equipment, and its inner wall abuts against the outer wall of the inner support ring. The outer support ring supports and positions the inner support ring. The outer support ring has a filter bag support space, which can support and position the filter bag.

2. The filter bag / filter element interface ring with a universal adaptable structure according to claim 1, characterized in that: A radial washer is provided between the inner and outer rings of the load-bearing ring. The radial washer abuts against the inner wall of the outer ring and the outer wall of the inner ring, which can provide radial sealing to the abutting part of the inner and outer rings of the load-bearing ring.

3. The filter bag / filter element interface ring with a universal adaptable structure according to claim 2, characterized in that: The radial washer has a V-shaped groove on its axial end face. The V-shaped groove is recessed inward along the axial direction of the radial washer and extends circumferentially along the radial washer, dividing the radial washer into an inner lip and an outer lip. The inner lip abuts against the inner wall of the bearing inner ring, and the outer lip abuts against the inner wall of the bearing outer ring.

4. The filter bag / filter element interface ring with a universal adaptable structure according to claim 3, characterized in that: The outer wall of the inner ring is provided with a positioning protrusion ring, which is located at the outer end of the inner ring. It protrudes radially outward from the inner ring and extends circumferentially along the inner ring. The outer ring covers the outer wall of the positioning protrusion ring. A positioning ring groove is provided in the positioning protrusion ring. The positioning ring groove is recessed radially into the inner ring and extends circumferentially along the positioning ring. Its shape is adapted to the radial washer. The radial washer is embedded in the positioning ring groove, and its outer lip is inclined outward from the positioning ring groove. When it abuts against the inner wall of the outer ring, it can retract into the positioning ring groove.

5. The filter bag / filter element interface ring with a universal adaptable structure according to claim 4, characterized in that: The inner end of the outer ring is provided with a limiting end ring. The limiting end ring protrudes radially toward the inner side of the outer ring and extends circumferentially along the outer ring. It abuts against the end face of the positioning protrusion ring and the outer wall of the inner ring, and the limiting end ring axially limits the inner ring.

6. The filter bag / filter element interface ring with a universal adaptable structure according to claim 4, characterized in that: The outer end of the bearing outer ring is provided with a mating end ring. The mating end ring protrudes radially outward from the outer side of the bearing outer ring and extends circumferentially along the bearing outer ring. Its axial end face abuts against the filter bag filter element assembly port of the filtration equipment. The mating end ring is used to position the bearing outer ring in the filtration equipment.

7. A filter bag / filter element interface ring with a universal adaptable structure according to claim 6, characterized in that: An axial washer is embedded in the radial inner end face of the mating end ring. The axial washer abuts against the mating end ring and the filter bag / filter element assembly port, which can axially seal the mating part between the mating end ring and the filter bag / filter element assembly port.

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