Conical filtering assembly

Abstract

The utility model provides a conical filtering assembly, relates to the technical field of filtering, and adopts the main technical scheme that a first connecting groove is formed in one end, close to a barrel body, of a flange; the first connecting groove comprises a first connecting face and a second connecting face. A first welding area is formed among one end, close to the second connecting surface, of the first connecting surface, the second connecting surface and one end, close to the second connecting surface, of the filtering layer; a second welding area is formed between the outer wall of one end, close to the second connecting surface, of the filter layer and the end face of one end, close to the second connecting surface, of the cylinder body. By additionally arranging the first connecting groove, the first welding area and the second welding area, the connecting strength between the flange and the cylinder body and between the flange and the filter layer is remarkably enhanced, and the loosening or leakage risk caused by vibration, pressure change and other factors is reduced. The two-section welding process not only ensures the mechanical strength of the connecting part, but also provides a good sealing effect, effectively prevents the side leakage of unfiltered materials, and improves the working efficiency of the whole conical filtering assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering, and more specifically, to a conical filtering component. Background Art

[0002] The fuel gas medium delivered by the fuel gas supply system of the heavy-duty gas turbine device must be filtered by the fuel gas filter to protect the normal operation of the equipment.

[0003] The prior art discloses a gas filter, such as Figure 5 and Figure 6 As shown, a flange 3 is welded at the open end of the barrel 1 for connecting to a natural gas pipeline. The first circumferential surface with a through hole in the middle of the flange 3 and the end surface of the open end of the barrel 1, as well as the angle where the flange 3 and the barrel 1 are connected are all welded by argon arc welding. Practice has proved that during the use of the existing gas filter, the bottom 2 of the barrel is impacted by tiny substances in the gas for a long time, and the welding part of the open end of the barrel is broken, causing the system to be unable to operate normally, with high maintenance costs and great losses. Utility Model Content

[0004] The utility model aims to provide a conical filter assembly, so as to enhance the connection strength between the flange, the cylinder body and the filter layer.

[0005] The utility model is realized by the following technical solutions:

[0006] A conical filter assembly comprises a barrel, a filter layer and a flange, wherein the barrel is provided with a placement groove; the filter layer is sleeved in the placement groove; the inner wall of the filter layer forms a filter cavity; the flange is provided with a feed channel; the flange is arranged on the barrel, and the feed channel is connected with the filter cavity; a first connecting groove is arranged at one end of the flange close to the barrel; the first connecting groove is arranged around the feed channel; the first connecting groove comprises a first connecting surface and a second connecting surface, the first connecting surface extends along one end of the flange close to the barrel to one end of the flange away from the barrel; the second connecting surface intersects at one end of the first connecting surface away from the barrel; wherein the first connecting surface is connected to the inner wall of the filter layer; a first welding area is formed between one end of the first connecting surface close to the second connecting surface, the second connecting surface, and one end face of the filter layer close to the second connecting surface; a second welding area is formed between the second connecting surface, the outer wall of one end of the filter layer close to the second connecting surface, and one end face of the barrel close to the second connecting surface.

[0007] Optionally, an angle between the first connecting surface and the second connecting surface is not less than 90°.

[0008] Optionally, the angle between the first connecting surface and the second connecting surface is greater than 90°.

[0009] Optionally, N filter layers are arranged in sequence along the direction from the outer wall of the cylinder body to the inner wall of the cylinder body; N≥2, and N is an integer; the outer wall of the first filter layer is connected to the cylinder body; the inner wall of the Nth filter layer is connected to the first connecting surface; the first welding area is formed between one end surface of the N filter layers close to the second connecting surface, one end of the first connecting surface close to the second connecting surface, and the second connecting surface; the second welding area is formed between the outer wall of the first filter layer, one end surface of the cylinder body close to the second connecting surface, and the second connecting surface.

[0010] Optionally, a welding area is formed between an outer wall of one end of any filter layer close to the second connecting surface, the second connecting surface, and an end surface of the filter layer on the outer wall of any filter layer close to the second connecting surface.

[0011] Optionally, an end surface of the barrel body close to the second connecting surface forms an acute angle with an inner wall surface of the barrel body.

[0012] Optionally, an end surface of the filter layer close to the second connecting surface forms an acute angle with an inner wall surface of the filter layer.

[0013] Optionally, a second welding area is formed between the filter hole wall on one end of the filter layer close to the second connecting surface, the second connecting surface, the outer wall of one end of the filter layer close to the second connecting surface, and the end surface of the barrel close to the second connecting surface.

[0014] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0015] By adding a specific first connecting groove structure and the design of the first welding area and the second welding area, the connection strength between the flange and the cylinder body and the filter layer is significantly enhanced, reducing the risk of loosening or leakage due to factors such as vibration and pressure changes.

[0016] The feed channel is directly connected to the filter chamber, which simplifies the path for the material to enter the filter layer, reduces flow resistance, and improves filtration efficiency and equipment operation smoothness.

[0017] The two-stage welding process not only ensures the mechanical strength of the connection part, but also provides a good sealing effect, effectively preventing the leakage of unfiltered materials and improving the working efficiency of the entire conical filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 This is a schematic diagram of the main structure of a conical filter assembly in the embodiment;

[0020] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 3 It is a schematic diagram of the main structure of a flange for a conical filter assembly in the embodiment;

[0022] Figure 4 It is a schematic diagram of the main structure of a cylindrical body for a conical filter assembly in the embodiment;

[0023] Figure 5 It is a schematic diagram of the main structure of an existing gas filter;

[0024] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0025] Marks and corresponding parts names in the attached drawings:

[0026] 100-body; 101-receiving groove; 102-filtering layer; 103-filtering chamber; 104-flange; 105-feeding channel; 106-first connecting groove; 107-first connecting surface; 108-second connecting surface; 109-first welding area; 110-second welding area. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0028] Embodiment: A conical filter assembly, such as Figure 1-Figure 4 As shown, it includes a body 100 , a filter layer 102 and a flange 104 .

[0029] The barrel 100 is a conical barrel, with an opening at one end with a larger diameter and a barrel bottom at one end with a smaller diameter. A placement groove 101 is provided inside the barrel 100, and a mesh hole communicating with the accommodating groove is provided on the barrel 100.

[0030] The filter layer 102 is tightly fitted in the placement groove 101, the filter holes on the filter layer 102 are connected to the mesh holes on the cylinder body 100, and the inner wall of the filter layer 102 forms a filter cavity 103. After the material enters the filter cavity 103, it can be filtered through the filter holes on the filter layer 102 and flow out from the mesh holes on the cylinder body 100. The material can be gas fuels such as natural gas, artificial gas, liquefied petroleum gas, biogas, coal gas, etc.

[0031] Flange 104 is fixedly mounted on the opening of barrel 100, and the longitudinal cross-sectional area of ​​flange 104 near barrel 100 end increases gradually along flange 104 near barrel 100 end to the direction away from barrel 100 end of flange 104, forming a tapered structure, the taper of which is consistent with the taper of the inner wall of barrel 100 opening end. The outer wall of flange 104 near barrel 100 end is connected with the inner wall of barrel 100 opening end filter layer 102, ensuring the smooth transition and good sealing of flange 104 and barrel 100 joints, thereby reducing the risk of leakage of equipment during operation. Feed channel 105 is provided inside flange 104, and feed channel 105 extends along flange 104 near barrel 100 end to the direction away from barrel 100 end of flange 104. The end of the feed channel 105 close to the barrel 100 is connected to the filter chamber 103, and the end of the feed channel 105 away from the barrel 100 is a material inlet for receiving the material to be filtered, so that the material to be filtered can enter the filter chamber 103 in the barrel 100 through the feed channel 105 from the end of the flange 104 away from the barrel 100.

[0032] In order to enhance the connection strength and sealing between the flange 104 and the barrel 100 and the filter layer 102, a first connection groove 106 is provided at one end of the flange 104 close to the barrel 100. The first connection groove 106 is arranged around the feed channel 105, and the first connection groove 106 has a first connection surface 107 and a second connection surface 108, wherein the first connection surface 107 extends along the end of the flange 104 close to the barrel 100 toward the end of the flange 104 away from the barrel 100, and the second connection surface 108 intersects with the end of the first connection surface 107 away from the barrel 100.

[0033] In actual operation, the first connection surface 107 is directly connected to the inner wall of the filter layer 102, and one end of the first connection surface 107 close to the second connection surface 108 (that is, the end surface of the filter layer 102 is not in direct contact with the second connection surface 108, and a welding gap is not provided between the end surface of the filter layer 102 and the second connection surface 108), the second connection surface 108 and one end surface of the filter layer 102 close to the second connection surface 108 together constitute a first welding area 109. A second welding area is formed between the second connection surface 108, the outer wall of one end of the filter layer 102 close to the second connection surface 108 (that is, the end of the outer wall of the filter layer 102 close to the second connection surface 108) and the end surface of the barrel 100 close to the second connection surface 108 (that is, the end surface of the opening end of the barrel 100). The first welding area 109 and the second welding area 110 are both welded to ensure the stability and sealing performance of the overall structure.

[0034] Through this structure, at least the following beneficial effects are achieved:

[0035] ① By adding a specific first connection groove 106 structure and the design of the first welding area 109 and the second welding area 110, the connection strength between the flange 104 and the cylinder body 100 and the filter layer 102 is significantly enhanced, reducing the risk of loosening or leakage caused by factors such as vibration and pressure changes.

[0036] ② The feed channel 105 is directly connected to the filter chamber 103, which simplifies the path for the material to enter the filter layer 102, reduces the flow resistance, and improves the filtration efficiency and the smoothness of the equipment operation.

[0037] ③The two-stage welding process not only ensures the mechanical strength of the connection part, but also provides a good sealing effect, effectively preventing the leakage of unfiltered materials and improving the working efficiency of the entire conical filter assembly.

[0038] For example, in order to facilitate welding operations. Figure 3 As shown, in this embodiment, the angle between the first connecting surface 107 and the second connecting surface 108 is not less than 90°, that is, there is no acute angle structure between the first connecting surface 107 and the second connecting surface 108 .

[0039] During the implementation, the filter layer 102 is first embedded and installed in the installation groove 101 of the cylinder body 100, and then the flange 104 is installed to the cylinder body 100 and the feed channel 105 is ensured to be aligned with the filter cavity 103. Secondly, when welding, a suitable welding process (such as TIG, MIG or argon arc welding, etc.) is used to perform comprehensive and in-depth welding treatments on the first welding area 109 and the second welding area 110 in sequence, so as to enhance the connection strength and sealing performance.

[0040] Through this structure, on the one hand, since the angle between the first connecting surface 107 and the second connecting surface 108 is not less than 90°, there is a larger operating space during welding operations, and the welding gun or other welding tools can more easily approach the welding part, thereby improving welding efficiency and quality. On the other hand, the large-angle design makes the welding more solid, the welding area is larger, and the ability of the welding part to withstand shear force and tensile force is enhanced, thereby improving the structural stability and pressure resistance of the entire conical filter assembly. On the other hand, the larger welding contact surface is conducive to dispersing and balancing the stress distribution between the flange 104 and the barrel 100 and the filter layer 102, reducing the risk of connection failure caused by local stress concentration.

[0041] For example, in order to further improve the connection strength of the weld. Figure 3 As shown, in this embodiment, the included angle between the first connection surface 107 and the second connection surface 108 is greater than 90°, that is, an obtuse angle structure is formed between the first connection surface 107 and the second connection surface 108 .

[0042] Through this structure, on the one hand, the angle design greater than 90° increases the welding area, so that the welding point can withstand greater shear force and tensile force, and significantly enhances the strength and stability of the connection between the flange 104 and the filter layer 102 and the cylinder body 100. On the other hand, the obtuse angle structure helps to disperse the stress concentration at the connection part. When the equipment is under pressure or vibration, this design can effectively prevent the weld cracking or deformation caused by excessive stress. On the other hand, the larger welding space facilitates the operation of welding tools and the construction work of welders, thereby improving welding efficiency and reducing potential quality problems.

[0043] Exemplarily, in order to improve the filtering performance of the conical filter assembly. In this embodiment, Figure 2As shown, the filter layers 102 are provided with N (N≥2, and N is an integer), and the N filter layers 102 are stacked and arranged in sequence along the outer wall of the barrel 100 to the inner wall direction, and along the outer wall of the barrel 100 to the inner wall direction, they are the first filter layer 102, the second filter layer 102, and the Nth filter layer 102. Along the direction from the first filter layer 102 to the Nth filter layer 102, the mesh number of the filter holes on each filter layer 102 gradually increases. In other words, the mesh number of the first filter layer 102 is the least, and the mechanical strength is the greatest, and the mesh number of the Nth filter layer 102 is the greatest, and the mechanical strength is the least. Along the direction from the first filter layer 102 to the Nth filter layer 102, the filter holes on each filter layer 102 are connected in sequence. The outer wall of the first filter layer 102 is directly connected and fixed to the barrel 100, and the inner wall of the last filter layer 102 (Nth) is connected to the first connecting surface 107 on the flange 104. When welding is performed, the end faces of all filter layers 102 close to the second connecting surface 108, the end of the first connecting surface 107 close to the second connecting surface 108, and the second connecting surface 108 together constitute a first welding area 109; at the same time, the outer wall of the first filter layer 102, the end face of the barrel 100 close to the second connecting surface 108, and the second connecting surface 108 form a second welding area 110.

[0044] Through this structure, on the one hand, the stacking structure of the multi-layer filter layer 102 makes it easier to replace a single filter layer 102, thereby extending the service life of the entire conical filter assembly. On the other hand, when a larger particle breaks through the first filter layer 102, the filter layer 102 with a filter hole diameter smaller than the particle diameter behind the first filter layer 102 can be used to filter the particle, so as to improve the filtering performance of the conical filter assembly. On the other hand, the stacking structure of the multi-layer filter layer 102 combined with two carefully designed welding areas makes the entire conical filter assembly have higher mechanical strength and pressure resistance, effectively preventing deformation or damage caused by pressure or vibration.

[0045] For example, in order to improve the strength of the connection between each filter layer 102 and the flange 104. Figure 2As shown, in this embodiment, a welding area is formed between the outer wall of one end of any filter layer 102 close to the second connection surface 108, the second connection surface 108, and the filter layer 102 on the outer wall of any filter layer 102, and the end surface close to the second connection surface 108. That is to say, for each filter layer 102 (not limited to the Nth or N-1th) in the conical filter assembly, no matter how it is located in the stacking sequence, the same connection and welding method is adopted. That is, the outer wall of one end of each filter layer 102 close to the second connection surface 108 will form an independent welding area with the second connection surface 108 and the inner wall of another filter layer 102 close to its outer wall close to the second connection surface 108. For example, a welding area is formed between the outer wall of one end of the second filter layer 102 close to the second connecting surface 108, the second connecting surface 108, and the end surface of the first filter layer 102 close to the second connecting surface 108; a welding area is formed between the outer wall of one end of the third filter layer 102 close to the second connecting surface 108, the second connecting surface 108, and the end surface of the second filter layer 102 close to the second connecting surface 108; and so on, a welding area is formed between the outer wall of one end of the Nth filter layer 102 close to the second connecting surface 108, the second connecting surface 108, and the end surface of the N-1th filter layer 102 close to the second connecting surface 108.

[0046] Through this structure, on the one hand, by setting a welding area for the contact area between each filter layer 102 and the second connecting surface 108, and another filter layer 102 adjacent to the outer wall of the filter layer 102, the overall stability of the entire conical filter assembly is enhanced, ensuring the stability of each layer of filter material under working pressure. On the other hand, the multiple welding design between each filter layer 102 greatly improves the sealing of the conical filter assembly, effectively preventing the material from leaking between different filter layers 102, and ensuring the filtering effect. On the other hand, each welding area can evenly disperse the fluid pressure and mechanical stress to each filter layer 102, reducing local stress concentration and extending the service life of the conical filter assembly.

[0047] For example, in order to improve the strength of the connection between the barrel 100 and the flange 104. Figure 2 As shown, in this embodiment, the barrel 100 of the conical filter assembly is designed to have an end surface close to the second connection surface 108 and an acute angle with the inner wall surface of the barrel 100. Through this structure, the welding area of ​​the end surface of the opening end of the barrel 100 is increased, so as to improve the connection strength between the barrel 100 and the flange 104, thereby reducing the risk of loosening or leakage of the barrel 100 due to force during operation, thereby further enhancing the sealing performance and durability of the conical filter assembly.

[0048] For example, in order to further improve the strength of the connection between the filter layer 102 and the flange 104. Figure 2As shown, in this embodiment, the end surface of the filter layer 102 close to the second connection surface 108 forms an acute angle with the inner wall surface of the filter layer 102. Through this structure, the welding area of ​​the end surface of the filter layer 102 close to the second connection surface 108 is increased, so as to improve the connection strength between the filter layer 102 and the flange 104, thereby reducing the risk of loosening or leakage of the filter layer 102 due to force during operation, thereby further enhancing the sealing performance and durability of the conical filter assembly.

[0049] Exemplarily, in order to further improve the strength of the connection between the filter layer 102 and the flange 104. In this embodiment, a second welding area 110 is formed between the filter hole wall on one end of the filter layer 102 close to the second connection surface 108, the second connection surface 108, the outer wall of one end of the filter layer 102 close to the second connection surface 108, and the end surface of the barrel 100 close to the second connection surface 108. Through this structure, after the filter layer 102 and the flange 104 are welded together, under the action of the filter holes on the filter layer 102, a number of small protrusions are formed on the side wall of the welding material close to the filter layer 102. The purpose of improving the connection strength between the filter layer 102 and the flange 104 is achieved through the small protrusions.

[0050] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A conical filter assembly, characterized in that: include: A barrel (100), wherein the barrel (100) is provided with a placement groove (101); A filter layer (102), the filter layer (102) being sleeved in the placement groove (101); the inner wall of the filter layer (102) forming a filter cavity (103); A flange (104), wherein the flange (104) is provided with a feed channel (105); the flange (104) is provided on the barrel (100), and the feed channel (105) is communicated with the filter chamber (103); a first connecting groove (106) is provided at one end of the flange (104) close to the barrel (100); the first connecting groove (106) is provided around the feed channel (105); the first connecting groove (106) comprises a first connecting surface (107) and a second connecting surface (108), the first connecting surface (107) extending along one end of the flange (104) close to the barrel (100) to one end of the flange (104) away from the barrel (100); the second connecting surface (108) intersects at one end of the first connecting surface (107) away from the barrel (100); The first connecting surface (107) is connected to the inner wall of the filter layer (102); a first welding area (109) is formed between one end of the first connecting surface (107) close to the second connecting surface (108), the second connecting surface (108), and one end surface of the filter layer (102) close to the second connecting surface (108); and a second welding area (110) is formed between the second connecting surface (108), the outer wall of one end of the filter layer (102) close to the second connecting surface (108), and one end surface of the barrel (100) close to the second connecting surface (108).

2. A conical filter assembly according to claim 1, characterized in that: The included angle between the first connecting surface (107) and the second connecting surface (108) is not less than 90°.

3. A conical filter assembly according to claim 2, characterized in that: The included angle between the first connecting surface (107) and the second connecting surface (108) is greater than 90°.

4. A conical filter assembly according to claim 1, characterized in that: N filter layers (102) are arranged in sequence along the outer wall of the barrel (100) in a direction toward the inner wall of the barrel (100); N≥2, and N is an integer; The outer wall of the first filter layer (102) is connected to the cylinder body (100); The inner wall of the Nth filter layer (102) is connected to the first connecting surface (107); The first welding area (109) is formed between one end surface of the N filter layers (102) close to the second connecting surface (108), one end of the first connecting surface (107) close to the second connecting surface (108), and the second connecting surface (108); The second welding area (110) is formed between the outer wall of the first filter layer (102), an end surface of the cylinder body (100) close to the second connecting surface (108), and the second connecting surface (108).

5. A conical filter assembly according to claim 4, characterized in that: A welding area is formed between the outer wall of one end of any filter layer (102) close to the second connecting surface (108), the second connecting surface (108), and the end surface of the filter layer (102) on the outer wall of any filter layer (102) close to the second connecting surface (108).

6. A conical filter assembly according to claim 1, characterized in that: An end surface of the barrel body (100) close to the second connecting surface (108) forms an acute angle with the inner wall surface of the barrel body (100).

7. A conical filter assembly according to claim 1, characterized in that: An end surface of the filter layer (102) close to the second connecting surface (108) forms an acute angle with the inner wall surface of the filter layer (102).

8. The conical filter assembly according to claim 1, characterized in that: A second welding area (110) is formed between the filter hole wall at one end of the filter layer (102) close to the second connecting surface (108), the second connecting surface (108), the outer wall at one end of the filter layer (102) close to the second connecting surface (108), and the end surface of the barrel (100) close to the second connecting surface (108).

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