Air oil filtering and drying cylinder

Abstract

The utility model relates to an air oil filtering drying cylinder which comprises a shell, a connecting disc, an inner container shell, a filter element and a water absorption assembly, an air passing cavity is formed in the shell, an opening is formed in the bottom of the shell, the connecting disc is arranged at the opening and provided with an air outlet and an air inlet, and the inner container shell is arranged in the shell and connected with the connecting disc. The inner container shell divides the air passing cavity into an oil filtering cavity and a water absorbing cavity which are communicated, the oil filtering cavity is communicated with the air inlet, the water absorbing cavity is communicated with the air outlet, the filter element is arranged in the oil filtering cavity, the water absorbing assembly is arranged in the water absorbing cavity, a flow guide shell is arranged in the oil filtering cavity and connected with the connecting disc, and the flow guide shell comprises an outer wall arranged in the vertical direction. The filter element is located between the outer wall and the inner container shell, the inner container shell comprises a blocking wall arranged in the horizontal direction, the air passing opening of the flow guide shell is opposite to the blocking wall, the filter element is arranged between the outer wall and the inner container shell, compressed air moves along the outer wall and leaves from the air passing opening of the flow guide shell, the contact time of the compressed air and the filter element is long, and oil mist is fully absorbed.

Description

Technical Field

[0001] The utility model relates to an air oil-filtering drying cylinder. Background Art

[0002] The Chinese utility model patent with the publication number of CN220758634U discloses an environment-friendly air drying cylinder. Compressed air (containing oil mist and water vapor) from an air compressor enters the interior of a housing through an air inlet, and then passes through a filter element to repel water and absorb oil. Among them, after the compressed air enters from the air inlet, it will disperse from the side of the filter element, with a short contact time with the filter element, and the absorption of oil mist is not sufficient. Content of the Utility Model

[0003] In view of the technical problems existing in the background art, the utility model aims to provide an air oil-filtering drying cylinder, and is designed to guide the compressed air to vertically pass through the filter element through an outer wall, with a long contact time and sufficient absorption of oil mist.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: The air oil-filtering drying cylinder includes a housing, a connecting disc, an inner liner housing, a filter element and a water absorption component. A gas passage chamber is provided inside the housing, and an opening is provided at the bottom of the housing. The connecting disc is arranged at the opening, and the connecting disc is provided with an air outlet and an air inlet. The inner liner housing is arranged inside the housing and is connected to the connecting disc. The inner liner housing divides the gas passage chamber into a communicated oil-filtering chamber and a water absorption chamber. The oil-filtering chamber is communicated with the air inlet, and the water absorption chamber is communicated with the air outlet. The filter element is arranged in the oil-filtering chamber, and the water absorption component is arranged in the water absorption chamber. Among them, a diversion shell is provided in the oil-filtering chamber, and the diversion shell is connected to the connecting disc. The diversion shell includes an outer wall arranged vertically, and the filter element is located between the outer wall and the inner liner housing. The inner liner housing includes a baffle wall arranged horizontally, and the air passage opening of the diversion shell is arranged opposite to the baffle wall.

[0005] In this scheme, the filter element is arranged between the outer wall and the inner liner housing. The compressed air cannot leave from the side of the filter element, but will move along the outer wall and leave from the air passage opening of the diversion shell. The contact time between the compressed air and the filter element is long, and the oil mist is fully absorbed. Moreover, the compressed air will contact the baffle wall for heat exchange, and part of the water vapor will condense into water droplets.

[0006] Preferably, the diversion shell further includes a top wall, the top wall is arranged opposite to the baffle wall, the top wall is provided with an air passage opening and a mounting opening, the air passage opening surrounds the mounting opening, the mounting opening allows the inner liner housing to pass through, and the air inlet surrounds the air outlet.

[0007] In this solution, the compressed air can only leave through the air passage opening on the top wall. Since the air passage opening is relatively narrow, the flow rate of the air flow will increase, and the air flow hits the baffle wall of the inner tank shell to fully conduct heat exchange.

[0008] Preferably, a baffle is further provided at the air passage opening. The inner tank shell includes a lower side wall, and the baffle is disposed opposite to the lower side wall.

[0009] In this solution, the baffle can restrain part of the air flow from hitting the baffle wall.

[0010] Preferably, a bead dropping channel is formed between the outer shell and the outer wall, a drainage channel is formed between the connecting disk and the diversion shell, the inlet of the drainage channel is communicated with the bead dropping channel, the outlet of the drainage channel is communicated with the air inlet, the filter element is arranged in the diversion shell, an air vent communicated with the drainage channel is provided on the diversion shell, a one-way valve is provided at the inlet of the drainage channel, the one-way valve is clamped with the diversion shell, the lower end of the one-way valve abuts against the connecting disk, and the one-way valve is made of rubber.

[0011] In this solution, the water droplets falling along the bead dropping channel are deposited at the inlet of the drainage channel. When deflating, a pressure difference is generated inside and outside the one-way valve, the one-way valve opens, and the condensed water is discharged from the air inlet through the drainage channel.

[0012] Preferably, the filter element is made of aluminum foil or glass fiber.

[0013] In this solution, the filter element is made of aluminum foil or glass fiber, and the oil beads can leave the filter element with the air flow during exhaust and be discharged from the air inlet.

[0014] Preferably, the water absorption component includes a primary water absorption layer, a secondary water absorption layer, a tertiary water absorption layer and a quaternary water absorption layer. The water absorption component is arranged axially in sequence along the center line of the connecting disk, and the primary water absorption layer is used for absorbing water vapor.

[0015] In this solution, the primary water absorption layer absorbs the water vapor that has not formed water droplets, the secondary water absorption layer absorbs water preliminarily, the tertiary water absorption layer and the quaternary water absorption layer absorb water deeply, and the multi-stage water absorption is fully dried.

[0016] Preferably, an inner tank cover is provided at the air inlet end of the inner tank shell. A compression spring is provided between the inner tank cover and the outer shell. An installation groove for accommodating the compression spring is provided in the middle of the inner tank cover. The primary water absorption layer is arranged around the installation groove, and an air inlet is provided on the inner tank cover.

[0017] In this solution, the inner tank cover does not need to be fixed with glue, which is suitable for high-temperature and high-pressure working environments.

[0018] Preferably, a sealing ring is provided between the inner tank shell and the connecting disk.

[0019] In this solution, the sealing ring ensures the sealing performance at the connection between the inner tank shell and the connection plate.

[0020] The beneficial effects of the present utility model are as follows: The filter element is arranged between the outer wall and the inner tank shell. Compressed air cannot leave from the side of the filter element and will move along the outer wall and leave from the air passing port of the diversion shell. The contact time between the compressed air and the filter element is long, and the oil mist is fully absorbed. Moreover, the compressed air will contact the baffle wall for heat exchange, and part of the water vapor will condense into water droplets. Therefore, the present utility model has substantial features and progress compared with the prior art. Description of the Drawings

[0021] The following describes the implementation manners, relevant details and working principles of the present utility model in conjunction with the drawings.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0023] Figure 2 It is a sectional view of the present utility model.

[0024] Figure 3 It is Figure 2 an enlarged view of A in

[0025] Figure 4 It is Figure 2 an enlarged view of B in

[0026] Figure 5 It is a three-dimensional structural schematic diagram of the inner tank shell in the present utility model.

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the diversion shell in the present utility model.

[0028] Figure 7 It is a three-dimensional structural schematic diagram of the assembly of the diversion shell and the one-way valve in the present utility model

[0029] In the figure: 1. Outer shell; 2. Connection plate; 3. Air outlet; 4. Air inlet; 5. Inner tank shell; 6. Filter element; 7. Diversion shell; 8. Outer wall; 9. Baffle wall; 10. Air passing port; 11. Top wall; 12. Installation port; 13. Baffle; 14. Lower side wall; 15. Droplet falling channel; 16. Drainage channel; 17. One-way valve; 18. First-stage water absorption layer; 19. Second-stage water absorption layer; 20. Third-stage water absorption layer; 21. Fourth-stage water absorption layer; 22. Inner tank cover; 23. Compression spring; 25. Sealing ring; 26. End cover; 27. Oil filtering cavity; 28. Water absorption cavity; 29. Air passage cavity. Detailed Implementation Manner

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the implementation manners of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0032] In the description of the present application, terms such as "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0033] See the attached Figures 1-3 As shown in FIGS. 5-6, in the embodiments of this implementation manner, an air filter oil drying cylinder includes a housing 1, a connection disk 2, an inner liner housing 5, a filter element 6, and a water absorption component. A gas passage chamber 29 is provided inside the housing 1. An opening is provided at the bottom of the housing 1. The connection disk 2 is disposed at the opening. The connection disk 2 is provided with an air outlet 3 and an air inlet 4. The inner liner housing 5 is disposed inside the housing 1 and connected to the connection disk 2. The inner liner housing 5 divides the gas passage chamber 29 into a communicated oil filtering chamber 27 and a water absorption chamber 28. The oil filtering chamber 27 is communicated with the air inlet 4. The water absorption chamber 28 is communicated with the air outlet 3. The filter element 6 is disposed inside the oil filtering chamber 27. The water absorption component is disposed inside the water absorption chamber 28.

[0034] Wherein, a diversion shell 7 is provided inside the oil filtering chamber 27. The diversion shell 7 is connected to the connection disk 2. The diversion shell 7 includes an outer wall 8 disposed vertically. The filter element 6 is located between the outer wall 8 and the inner liner housing 5. The inner liner housing 5 includes a blocking wall 9 disposed horizontally. The gas passing port 10 of the diversion shell 7 is disposed opposite to the blocking wall 9. The diversion shell 7 further includes a top wall 11. The top wall 11 is disposed opposite to the blocking wall 9. The top wall 11 is provided with a gas passing port 10 and an installation port 12. The gas passing port 10 is disposed around the installation port 12. The installation port 12 is for the inner liner housing 5 to pass through. The air inlet 4 is disposed around the air outlet 3. A baffle 13 is also provided at the gas passing port 10. The inner liner housing 5 includes a lower side wall 14. The baffle 13 is disposed opposite to the lower side wall 14.

[0035] In this embodiment, the outer shell 1 is cylindrical, and the cross-section of the inner shell 5 is an inverted convex shape. There is a gap between the top of the inner shell 5 and the outer shell 1 for air flow to pass through, so as to connect the oil filter chamber 27 and the water absorption chamber 28. Multiple air inlets 4 are arranged around the air outlet 3, and multiple air ports 10 are arranged around the installation port 12.

[0036] During air intake, the airflow formed by the compressed air enters from the air inlet 4, and leaves from the air port 10 of the guide shell 7 after fully absorbing the oil mist through the filter element 6. The airflow accelerated by the air port 10 hits the baffle wall 9 for sufficient heat exchange, and part of the water vapor condenses into water droplets. When the airflow rises along the gap between the inner shell 5 and the outer shell 1, part of the water droplets will fall away from the airflow due to gravity, and then the airflow enters the water absorption chamber 28, and leaves from the air outlet 3 after fully absorbing water through the water absorption component, wherein the baffle 13 can abut against the baffle wall 9 during assembly to indicate that the guide shell 7 is installed in place; the material selection for the oil absorption of the filter element 6 and the water absorption component for water absorption is mature technology; the connecting plate 2 is connected to the outer shell 1 through the end cover 26, which is mature technology.

[0037] In other alternative embodiments, the guide shell 7 may not be provided with the top wall 11 and may be open; the baffle 13 may be provided on the inner shell 5 .

[0038] See attached Figure 4 , 7 A bead falling channel 15 is formed between the shell 1 and the outer wall 8, a drainage channel 16 is formed between the connecting plate 2 and the guide shell 7, the inlet of the drainage channel 16 is communicated with the bead falling channel 15, the outlet of the drainage channel 16 is communicated with the air inlet 4, the filter element 6 is arranged in the guide shell 7, the guide shell 7 is provided with a vent communicated with the drainage channel 16, the inlet of the drainage channel 16 is equipped with a one-way valve 17, the one-way valve 17 is clamped with the guide shell 7, the lower end of the one-way valve 17 is abutted against the connecting plate 2, the one-way valve 17 is made of rubber, and the filter element 6 is made of aluminum foil or glass fiber.

[0039] In the present embodiment, the air filter oil dryer has two working conditions during operation: intake filtration and exhaust regeneration. When exhausting, the air pressure in the bead falling channel 15 increases, and the one-way valve 17 is turned on due to the pressure difference. The condensed water and impurities deposited at the entrance of the drainage channel 16 are discharged from the air inlet 4 through the drainage channel 16. When the filter element 6 is aluminum foil or glass fiber, the oil beads and impurities retained by the filter element 6 will also be discharged from the air inlet 4 through the vent (not shown in the figure) driven by the exhaust airflow. Among them, the guide shell 7 is connected to the connecting plate 2 through the one-way valve 17; the filter element 6 is inserted into the guide shell 7 from the inside; the guide shell 7 is a split type, and the assembly is completed by abutment.

[0040] In other alternative embodiments, a drainage channel 16 may be provided in the connecting plate 2, and the guide shell 7 may be directly connected to the connecting plate 2. The upper surface of the connecting plate 2 may serve as a bottom wall and cooperate with the guide shell 7 to form a cavity for accommodating the filter element 6. Alternatively, the lower side wall 14 of the inner shell 5 may serve as an inner wall and cooperate with the guide shell 7 to form a cavity for accommodating the filter element 6, and the vent may be provided on the lower side wall 14, and a connecting cavity may be provided in the inner shell 5 to connect the vent and the air inlet 4.

[0041] Referring to the accompanying drawings, the water absorption component includes a primary water absorption layer 18, a secondary water absorption layer 19, a tertiary water absorption layer 20 and a quaternary water absorption layer 21. The water absorption component is axially arranged in sequence along the center line of the connecting disk 2. The primary water absorption layer 18 is used to absorb water vapor. The air inlet end of the inner liner shell 5 is provided with an inner liner cover 22. A compression spring 23 is provided between the inner liner cover 22 and the outer shell 1. A mounting groove for accommodating the compression spring 23 is provided in the middle of the inner liner cover 22. The primary water absorption layer 18 is arranged around the mounting groove. An air inlet is provided on the inner liner cover 22. A sealing ring 25 is provided between the inner liner shell 5 and the connecting disk 2.

[0042] In the present embodiment, before entering the water absorption chamber 28, the water vapor of the airflow has been partially condensed into water droplets and separated, the primary water absorption layer 18 mainly absorbs the uncondensed water vapor, the secondary water absorption layer 19 preliminarily absorbs the moisture of the entire airflow, the tertiary water absorption layer 20 and the fourth water absorption layer 21 perform deep adsorption, layer by layer to ensure the drying effect, wherein the primary water absorption layer 18, the tertiary water absorption layer 20 and the fourth water absorption layer 21 are molecular sieves, the secondary water absorption layer 19 is made of fiber material, which is a mature technology; interlayers are arranged between the water absorption layers, and a protective cover is arranged at the bottom of the fourth water absorption layer 21, which is a mature technology.

[0043] The above is a preferred embodiment of the utility model, and it should be noted that the protection scope of the utility model is not limited thereto. For those skilled in the art, multiple improvements and modifications or equivalent replacements can be made without departing from the equivalent utility model concept of the technical scope disclosed by the utility model, which are also regarded as the protection scope of the utility model.

Claims

1. An air filter oil drying cylinder, comprising A housing (1) having an air cavity (29) therein, and an opening at the bottom of the housing (1); A connection plate (2) is arranged at the opening, and the connection plate (2) is provided with an air outlet (3) and an air inlet (4); an inner shell (5) disposed in the outer shell (1) and connected to the connecting plate (2), the inner shell (5) dividing the air passage cavity (29) into an oil filter cavity (27) and a water absorption cavity (28) which are connected to each other, the oil filter cavity (27) being connected to the air inlet (4), and the water absorption cavity (28) being connected to the air outlet (3); A filter element (6) disposed in the oil filter cavity (27); A water absorption component, which is arranged in the water absorption chamber (28); Features: A flow guide shell (7) is provided in the oil filter cavity (27), the flow guide shell (7) being connected to the connection plate (2), the flow guide shell (7) comprising an outer wall (8) arranged in a vertical direction, the filter element (6) being located between the outer wall (8) and the inner shell (5), the inner shell (5) comprising a retaining wall (9) arranged in a horizontal direction, and the air outlet (10) of the flow guide shell (7) being arranged opposite to the retaining wall (9).

2. The air filter oil drying cartridge according to claim 1, characterized in that: The guide shell (7) further comprises a top wall (11), the top wall (11) being arranged opposite to the baffle wall (9), the top wall (11) being provided with an air passage (10) and a mounting opening (12), the air passage (10) being arranged around the mounting opening (12), the mounting opening (12) being for the inner shell (5) to pass through, and the air inlet (4) being arranged around the air outlet (3).

3. An air filter oil drying cartridge as claimed in claim 2, characterized in that: The air outlet (10) is also provided with a baffle (13), the inner shell (5) comprises a lower side wall (14), and the baffle (13) is arranged opposite to the lower side wall (14).

4. The air filter oil drying cartridge according to claim 1, characterized in that: A bead-dropping channel (15) is formed between the shell (1) and the outer wall (8), a drainage channel (16) is formed between the connection plate (2) and the guide shell (7), the inlet of the drainage channel (16) is communicated with the bead-dropping channel (15), the outlet of the drainage channel (16) is communicated with the air inlet (4), the filter element (6) is arranged in the guide shell (7), the guide shell (7) is provided with a vent communicated with the drainage channel (16), the inlet of the drainage channel (16) is provided with a one-way valve (17), the one-way valve (17) is clamped with the guide shell (7), the lower end of the one-way valve (17) is in contact with the connection plate (2), and the one-way valve (17) is made of rubber.

5. The air filter oil drying cartridge according to claim 1, characterized in that: The filter element (6) is aluminum foil or glass fiber.

6. The air filter oil drying cartridge according to claim 1, characterized in that: The water absorption component comprises a primary water absorption layer (18), a secondary water absorption layer (19), a tertiary water absorption layer (20) and a quaternary water absorption layer (21), and the water absorption component is arranged in sequence along the axial direction of the center line of the connection disk (2), and the primary water absorption layer (18) is used to absorb water vapor.

7. An air filter oil drying cartridge as claimed in claim 6, characterized in that: The air inlet end of the inner liner shell (5) is provided with an inner liner cover (22), a compression spring (23) is provided between the inner liner cover (22) and the outer shell (1), a mounting groove for accommodating the compression spring (23) is provided in the middle of the inner liner cover (22), the primary water absorption layer (18) is arranged around the mounting groove, and an air inlet is provided on the inner liner cover (22).

8. The air filter oil drying cartridge according to claim 1, characterized in that: A sealing ring (25) is provided between the inner shell (5) and the connecting plate (2).

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