Positive baffling type T-shaped filter

Abstract

The utility model discloses a positive baffling type T-shaped filter, which belongs to the field of filters and is characterized in that a front limiting structure is arranged at the position of a liquid inlet, a filter element is arranged in a barrel, filter holes are distributed on the surface of the filter element, one axial end of the filter element is a mounting port, the front end of the mounting port is abutted against and matched with the front limiting structure, and the other axial end of the filter element is a rear limiting structure. The circumferential side face of the rear limiting structure abuts against the inner wall of the dismounting opening, the tail end of the rear limiting structure abuts against the inner side of the cover plate, the filter element is in a cone frustum shape, and the diameter of the filter element mounting opening is larger than that of the rear end. The rear end of the filter element is limited and supported in the circumferential direction, the overall compression resistance and impact resistance of the filter element are improved, meanwhile, the interior of the overall filter element is a gradually-shrunk flow channel, an inlet is large, the bottom is small, the circulation space in a cylinder is increased, the resistance drop of the filter element is effectively reduced, and pressure loss is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter structure, in particular to a kind of positive baffle T type filter. BACKGROUND

[0002] Positive baffle filter is a new type of high-efficiency, energy-saving gas purification device, which uses special filter mechanism, under the action of pressure difference, liquid is separated by filter core, with the advantages of small volume, low resistance, high efficiency and easy operation. It is widely used in industrial fluid treatment field, and its core is that particles are separated from main flow line due to inertia and remain in filter cartridge.

[0003] In prior art, the positive baffle filter is disclosed in Chinese utility model patent with application number "CN202021923400.7", which filters fluid through straight-cylindrical filter cartridge, but the straight-cylindrical filter cartridge has small flow space and large pressure loss, and the centering positioning and supporting effect of filter cartridge are poor. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of positive baffle T type filter, with the advantages of small pressure loss, good filtering effect and good filter core supporting effect.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of positive baffle T type filter, including cylinder, the one end of the length direction of the cylinder is inlet, the other end of the length direction of the cylinder is dismounting port, the circumferential direction of the cylinder is provided with outlet, the position of the inlet is provided with front limit structure, the dismounting port is provided with connecting flange, the connecting flange is connected with cover plate, the cylinder is provided with filter core, the filter core surface is distributed with filter hole, the one end of the axial direction of the filter core is installation port, the front end of the installation port is in abutment with front limit structure, the other end of the axial direction of the filter core is rear limit structure, the circumferential side surface of the rear limit structure is in abutment with the inner wall of dismounting port, the end of the rear limit structure is in abutment with the inside of cover plate, the filter core is conical table, the diameter of the filter core installation port is greater than the diameter of rear end.

[0006] Preferably, the front limit structure includes baffle, the circumferential side surface of the baffle is in abutment with the inner wall of inlet, the center of the baffle is provided with through hole, the baffle is provided with step hole corresponding with through hole, the diameter of the step hole is greater than the diameter of through hole, and the step hole and through hole are concentrically arranged.

[0007] By adopting the above technical scheme, the filter core is matched with the step hole through the limiting ring, which improves the sealing property and stability of the front end.

[0008] Preferably, the filter core extends radially outward at the installation opening position to form a limiting ring which cooperates with the stepped hole.

[0009] The sealing effect is further improved by using the above technical solution.

[0010] Preferably, the circumferential side of the filter core is provided with an annular structure reinforcing area, the annular structure reinforcing area is concentrically arranged with the filter core, and the filter holes are not arranged in the annular structure reinforcing area.

[0011] The annular structure reinforcing area improves the structural strength of the filter core and reduces deformation after being impacted by fluid inside by using the above technical solution.

[0012] Preferably, the filter core is provided with a structure reinforcing ring outside the annular structure reinforcing area, and the annular structure reinforcing area is provided with at least one along the axial direction of the filter core.

[0013] The annular structure reinforcing area can be better welded and fixed with the structure reinforcing ring, and the structural strength is improved by using the above technical solution.

[0014] Preferably, the filter core comprises a filter screen, the front end of the filter screen is concentrically connected with the limiting ring, the end of the filter screen is connected with a bottom plate, the annular structure reinforcing areas are uniformly distributed along the axial direction of the filter screen, and the filter holes are uniformly distributed on the filter screen.

[0015] The bottom plate improves the structural strength and deflection performance of the filter core at the position of mainly bearing impact force and normal deflection flow, improves the durability of the filter core, and reduces deformation by using the above technical solution.

[0016] Preferably, the rear limiting structure comprises an abutting positioning ring, the longitudinal section shape of the abutting positioning ring is circular, the outer circumferential side of the abutting positioning ring abuts against the inner wall of the dismounting opening, a connecting rib is arranged between the inner side of the abutting positioning ring and the bottom plate, and the connecting rib is uniformly distributed around the circumferential direction of the bottom plate.

[0017] The abutting positioning ring ensures the connection between the filter core and the barrel during use, that is, the abutting and supporting of the bottom plate at the impact position, the connecting rib plays a role in connecting and reducing weight, and the structure of the abutting positioning ring can also ensure the detachable connection of the filter core structure by using the above technical solution.

[0018] Preferably, a connecting seat is arranged above the connecting flange, a first rotating ring is arranged in the connecting seat, a second rotating ring which cooperates with the first rotating ring is arranged on the cover plate, and the cover plate opens and closes the dismounting opening through cooperation of the second rotating ring and the first rotating ring.

[0019] By adopting the technical scheme, the cover plate is rotated in the height direction, the dismounting opening is opened and closed, and the filter core is conveniently taken out and placed.

[0020] Preferably, the outer side of the cover plate is provided with a first handle arranged side by side in the up-down direction, the center of the bottom of the bottom plate is provided with a groove, the groove is provided with a second handle, the second handle does not protrude from the abutting positioning ring, and the bottom of the filter screen is provided with a flange corresponding to the groove.

[0021] By adopting the technical scheme, the first handle is convenient for a user to open the cover plate, the second handle is convenient for the filter core to be taken out, and meanwhile, the groove avoids the second handle from protruding from the bottom of the bottom plate, thereby avoiding interference with the cover plate.

[0022] Preferably, the cover plate is provided with a drainage opening, the drainage opening is in communication with the cylinder, and the drainage opening is provided with a sealing plug.

[0023] By adopting the technical scheme, residual liquid is conveniently drained.

[0024] In summary, in the length direction of the filter core, the front end of the filter core is limited and supported by the cooperation of the limiting ring and the stepped hole, the rear end of the filter core is limited and supported in the circumferential direction by the rear limiting structure, the compression resistance and impact resistance of the whole filter core are improved, the inside of the whole filter core is a tapered flow channel, the inlet is large and the bottom is small, the flow-through space in the cylinder is increased, the filter resistance drop is effectively reduced, the pressure loss is reduced, the filtering effect is improved, the limiting ring and the structure reinforcing ring play the role of multi-stage limiting, the rotating ring and the hidden second handle design significantly shorten the maintenance and replacement time. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a cross-sectional schematic view of the embodiment;

[0026] Figure 2 is Figure 1 is an enlarged schematic view of part A shown in the figure;

[0027] Figure 3 is a cross-sectional schematic view of the embodiment at the position of the bottom plate;

[0028] Figure 4 is a structural schematic view of the abutting positioning ring of the embodiment;

[0029] In the diagram, 1. Cylinder; 11. Outlet; 2. Inlet; 3. Disassembly port; 31. Connecting flange; 32. Connecting seat; 33. First rotating ring; 34. Cover plate; 35. Second rotating ring; 36. First handle; 37. Drain port; 38. Sealing plug; 4. Front limiting structure; 41. Baffle; 42. Through hole; 43. Stepped hole; 5. Filter element; 51. Filter screen; 52. Flanged edge; 53. Filter hole; 54. Mounting port; 55. Limiting ring; 56. Annular structure reinforcement area; 57. Structural reinforcement ring; 58. Base plate; 59. Groove; 591. Second handle; 6. Rear limiting structure; 61. Abutment positioning ring; 62. Connecting rib. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0032] Example:

[0033] like Figures 1 to 4 As shown, a positive baffle T-type filter has an inlet 2 at one end of the length direction of the cylinder 1 and a disassembly port 3 at the other end of the length direction of the cylinder 1. An outlet 11 is provided in the circumferential direction of the cylinder 1, thus forming an inverted T-shaped structure.

[0034] like Figure 1 As shown, a filter element 5 is installed inside the cylinder 1. In order to limit the two ends of the filter element 5 in the length direction inside the cylinder 1, ensure the axial and radial stability of the filter element 5, and prevent displacement or vibration during operation, a front limiting structure 4 is provided at the liquid inlet 2 and a rear limiting structure 6 is provided at the disassembly port 3. The filter element 5 is shaped like a frustum cone. The diameter of the filter element 5 installation port 54 is larger than the diameter of the rear end, forming a gradually narrowing channel, increasing the filtration area and guiding the fluid to be evenly distributed, thereby reducing pressure drop.

[0035] Meanwhile, in order to open the cylinder 1, the disassembly port 3 is provided with a connecting flange 31. The connecting flange 31 is connected to a cover plate 34 by bolts. The cover plate 34 serves to seal the disassembly port 3 to prevent leakage.

[0036] like Figures 1 to 4As shown, the filter core 5 is provided with filter holes 53 on the surface, and the overall structure of the filter core 5 is that the filter core 5 comprises a filter screen 51 made of stainless steel, the front end of the filter screen 51 is connected concentrically with a limiting ring 55, the end of the filter screen 51 is connected with a bottom plate 58, the bottom plate 58 is circular, the center of the bottom of the bottom plate 58 is provided with a groove 59, the bottom of the filter screen 51 is provided with an inward flange 52 corresponding to the groove 59, the flange 52 strengthens the structural strength of the position and ensures that impurities are left in the filter core 5.

[0037] In order to strengthen the structure of the filter core 5, the circumferential side of the filter core 5 is provided with an annular structure reinforcing area 56, the annular structure reinforcing area 56 is provided concentrically with the filter core 5, the annular structure reinforcing area 56 is uniformly distributed along the axial direction of the filter screen 51, the filter holes 53 are uniformly distributed on the filter screen 51, and the filter holes 53 are not provided in the annular structure reinforcing area 56; in order to further strengthen the structural strength of the position, the filter core 5 is connected with a structure reinforcing ring 57 outside the annular structure reinforcing area 56 by welding, and the annular structure reinforcing area 56 is provided with at least one along the axial direction of the filter core 5.

[0038] As shown in Figure 1 , one end of the filter core 5 in the axial direction is a mounting port 54, the front end of the mounting port 54 abuts against the front limiting structure 4 in a matching mode, and the other end of the filter core 5 in the axial direction is a rear limiting structure 6; the circumferential side of the rear limiting structure 6 abuts against the inner wall of the dismounting port 3, and the end of the rear limiting structure 6 abuts against the inner side of the cover plate 34.

[0039] As shown in Figure 1 , the front limiting structure 4 comprises a baffle 41, the circumferential side of the baffle 41 abuts against the inner wall of the liquid inlet port 2, the center of the baffle 41 is provided with a through hole 42, the baffle 41 is provided with a stepped hole 43 corresponding to the through hole 42, the diameter of the stepped hole 43 is greater than that of the through hole 42, the stepped hole 43 and the through hole 42 are provided concentrically, the filter core 5 extends outward in the radial direction at the position of the mounting port 54 to form the limiting ring 55, and the limiting ring 55 is matched with the stepped hole 43. Figures 1 to 4 As shown in , the rear limiting structure 6 comprises an abutting positioning ring 61, the longitudinal section shape of the abutting positioning ring 61 is circular, the outer circumferential side of the abutting positioning ring 61 abuts against the inner wall of the dismounting port 3, and the inner side of the abutting positioning ring 61 and the bottom plate 58 are provided with a connecting rib 62 which is uniformly distributed in the circumferential direction around the bottom plate 58.

[0040] Figure 1 and Figure 3As shown, for ease of maintenance, the disassembly port 3 is connected to the cover plate 34 via a flange. A connecting seat 32 is provided above the connecting flange 31, and a first rotating ring 33 is provided inside the connecting seat 32. A second rotating ring 35 that cooperates with the first rotating ring 33 is provided on the cover plate 34. The cover plate 34 opens and closes the disassembly port 3 through the cooperation of the second rotating ring 35 and the first rotating ring 33. The structure of the first rotating ring 33 and the second rotating ring 35 enables quick opening and closing, simplifying the filter element 5 replacement process. A first handle 36 arranged vertically on the outer side of the cover plate 34 is provided. A groove 59 is provided at the center of the bottom of the base plate 58, and a second handle 591 is provided inside the groove 59. The second handle 591 does not protrude from the abutment positioning ring 61. The concealed second handle 591 avoids interfering with fluid flow and facilitates disassembly and assembly operations.

[0041] like Figure 1 As shown, after the flow channel is closed, in order to discharge the liquid in the filter, the cover plate 34 is provided with a drain port 37, which is connected to the inside of the cylinder 1, and a sealing plug 38 is provided on the drain port 37.

[0042] Working principle:

[0043] The limiting ring 55 of the filter element 5 of the front limiting structure 4 is embedded in the stepped hole 43 on the baffle 41 to form an axial limit; the through hole 42 of the baffle 41 is concentric with the stepped hole 43 to ensure that the fluid enters the filter element 5 evenly; the abutting positioning ring 61 of the rear limiting structure 6 is attached to the inner wall of the disassembly port 3, and the connecting rib 62 evenly distributes the pressure to the bottom plate 58 to prevent the filter element 5 from being deformed by pressure; the liquid enters the cylinder 1 through the liquid inlet 2, enters the truncated cone-shaped filter element 5 through the front end of the filter element 5, directly impacts the bottom plate 58 and causes a flow deflection. During this process, the fluid flows along the axial direction of the filter element 5 and permeates outward through the filter holes 53 on the filter screen 51. Impurities are intercepted on the inner surface of the filter element 5, and the filtered fluid leaves the filter through the liquid outlet 11, completing the filtration of the fluid.

Claims

1. A positive deflection T-type filter, comprising a cylinder (1), one end of the length direction of the cylinder (1) is a liquid inlet (2), the other end of the length direction of the cylinder (1) is a dismounting port (3), and a liquid outlet (11) is arranged in the circumferential direction of the cylinder (1), characterized in that: The liquid inlet (2) is provided with a front limiting structure (4), the dismounting opening (3) is provided with a connecting flange (31), the connecting flange (31) is connected with a cover plate (34), the cylinder (1) is provided with a filter core (5), the filter core (5) is distributed with filter holes (53) on the surface, one end of the filter core (5) in the axial direction is a mounting opening (54), the front end of the mounting opening (54) is in abutting fit with the front limiting structure (4), the other end of the filter core (5) in the axial direction is a rear limiting structure (6), the circumferential side of the rear limiting structure (6) is in abutting fit with the inner wall of the dismounting opening (3), the end of the rear limiting structure (6) is in abutting fit with the inner side of the cover plate (34), the filter core (5) is in the shape of a conical frustum, and the diameter of the mounting opening (54) of the filter core (5) is greater than the diameter of the rear end.

2. The positive pitch T-type filter of claim 1, wherein: The front limiting structure (4) comprises a baffle (41), the circumferential side of the baffle (41) is in abutting fit with the inner wall of the liquid inlet (2), the center of the baffle (41) is provided with a through hole (42), the baffle (41) is provided with a stepped hole (43) corresponding to the through hole (42), the diameter of the stepped hole (43) is greater than the diameter of the through hole (42), and the stepped hole (43) and the through hole (42) are concentrically arranged.

3. The positive pitch T-type filter of claim 2, wherein: The filter core (5) extends radially outward at the mounting opening (54) to form a limiting ring (55), and the limiting ring (55) is matched with the stepped hole (43).

4. The positive pitch T-type filter of claim 3, wherein: The circumferential side of the filter core (5) is provided with an annular structure reinforcing area (56), the annular structure reinforcing area (56) is arranged concentrically with the filter core (5), and the filter holes (53) are not arranged in the annular structure reinforcing area (56).

5. The positive pitch T-type filter of claim 4, wherein: The filter core (5) is provided with a structure reinforcing ring (57) outside the annular structure reinforcing area (56), and the annular structure reinforcing area (56) is provided with at least one along the axial direction of the filter core (5).

6. The positive pitch T-type filter of claim 5, wherein: The filter core (5) comprises a filter screen (51), the front end of the filter screen (51) is connected concentrically with the limiting ring (55), the end of the filter screen (51) is connected with a bottom plate (58), the annular structure reinforcing area (56) is uniformly distributed along the axial direction of the filter screen (51), and the filter holes (53) are uniformly distributed on the filter screen (51).

7. The positive pitch T-type filter of claim 6, wherein: The rear limiting structure (6) comprises an abutting positioning ring (61), the longitudinal section shape of the abutting positioning ring (61) is circular, the outer circumferential side of the abutting positioning ring (61) is in abutting fit with the inner wall of the dismounting opening (3), and a connecting rib (62) is arranged between the inner side of the abutting positioning ring (61) and the bottom plate (58), and the connecting rib (62) is uniformly distributed in the circumferential direction of the bottom plate (58).

8. The positive pitch T-type filter of claim 7, wherein: The connecting flange (31) is provided with a connecting seat (32) above, the connecting seat (32) is provided with a first rotating ring (33) inside, the cover plate (34) is provided with a second rotating ring (35) matched with the first rotating ring (33), and the cover plate (34) is opened and closed with the dismounting opening (3) through the cooperation of the second rotating ring (35) and the first rotating ring (33).

9. The positive pitch T-type filter of claim 8, wherein: The outer side of the cover plate (34) is provided with a first handle (36) arranged side by side up and down, the bottom center of the bottom plate (58) is provided with a groove (59), the second handle (591) is arranged in the groove (59), the second handle (591) is not protruding from the abutting positioning ring (61), and the bottom of the filter screen (51) is provided with a turned edge (52) corresponding to the groove (59).

10. The positive pitch T-type filter of claim 9, wherein: The cover plate (34) is provided with a drainage port (37) which communicates with the cylinder (1), and the drainage port (37) is provided with a sealing plug (38).

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