Nitrogen input device for distillation pre-desorption treatment of fish oil

Abstract

The utility model discloses a nitrogen input device for fish oil distillation pre-desorption treatment, which relates to the technical field of fish oil distillation, is used for filtering nitrogen before nitrogen is filled into distillation equipment, and comprises a filter element, the pipe fitting is provided with an air inlet channel; a plurality of filter chambers which are independent from one another and are used for placing filter elements are arranged in the filter box. According to the utility model, the plurality of mutually independent filter chambers are arranged in the filter box for storing the filter elements, and the pipe fitting is movably connected with the filter box through the switching structure, so that after nitrogen is fed into the filter chambers of the filter box through the pipe fitting, the filter elements filter the nitrogen, and after the filter elements in the used filter chambers are invalid, the filter elements are switched to the filter chambers. The switching structure is operated to enable the pipe fitting to move relative to the filter box until the air inlet channel of the pipe fitting is in butt joint with the air inlet end of another conveying path in the filter box, so that another filter element is quickly switched.

Description

Technical Field

[0001] This utility model relates to the field of fish oil distillation technology, specifically to a nitrogen input device for pre-removal treatment of fish oil distillation. Background Technology

[0002] Molecular distillation technology can extract EPA and DHA from fish oil. To reduce the risk of fish oil being oxidized and decomposed in the distillation tank, nitrogen needs to be introduced into the distillation tank before the distillation operation to ensure that all air in the tank is removed. However, since nitrogen may carry some impurities and contaminants during production and use, if it is introduced directly into the fish oil distillation tank without filtration, these impurities may affect the purity and quality of the fish oil. Most existing filtration devices use activated carbon as the filter element. Its unique pore structure and high surface area give it a strong adsorption capacity, which can effectively adsorb oil vapor and other impurities in the gas.

[0003] Current technical problems: After a period of use, the pores in the activated carbon used as a filter element will gradually be filled by impurities, reducing its adsorption capacity and causing the filtration effect to decline. At this time, it is necessary to replace the filter element with a new one. However, replacing the filter element requires disassembling the entire filter device, removing the failed filter element and inserting a new one, which usually takes a lot of time. Therefore, it is necessary to design a structure that can quickly replace the filter element. Utility Model Content

[0004] The purpose of this invention is to provide a nitrogen input device for pre-treatment of fish oil distillation, so as to solve the technical problem mentioned in the background art that the nitrogen input device for fish oil distillation on the market has low efficiency when replacing the filter element.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen input device for pre-treatment of fish oil distillation, used to filter nitrogen before it is introduced into the distillation equipment, comprising:

[0006] Filter element;

[0007] Pipe fittings with air intake channels;

[0008] The filter box is hollow inside, and the filter box is provided with multiple independent filter chambers for placing filter elements. The filter box is provided with an air inlet and an air outlet that are respectively connected to each filter chamber. The air inlet and the air outlet form a conveying path for sending nitrogen into and out of the filter element.

[0009] A switching structure for moving the pipe relative to the filter box, thereby allowing the air intake channel to connect with the air intake end of any delivery path.

[0010] As a preferred embodiment of this utility model, the filter box is provided with multiple airtight partitions, and the adjacent airtight partitions form a filter chamber.

[0011] As a preferred embodiment of this utility model, a filter plate is provided between the airtight partitions, and there is a gap between the filter plate and the airtight partition to provide an exhaust end.

[0012] As a preferred embodiment of this utility model, the air intake channel includes:

[0013] An air inlet pipe is provided outside the pipe fitting, and the air inlet pipe communicates with an air inlet chamber opened in the pipe fitting. The pipe fitting has a first air inlet hole on its side near the filter box that matches the air inlet end.

[0014] As a preferred embodiment of this utility model, the air inlet end is a second air inlet hole opened on the surface of the filter box, and the exhaust end is an air outlet opened on the surface of the airtight partition plate, and the air outlet is connected to the first air outlet hole opened on the surface of the filter box.

[0015] As a preferred embodiment of this utility model, the number of the first air outlet and the number of the second air inlet are the same, and a delivery air pipe for connecting the two is provided between the air outlet of each filter chamber and each first air outlet.

[0016] As a preferred embodiment of the present invention, one end of the pipe is provided with an air outlet pipe, which is connected to an air outlet chamber opened inside the pipe. The pipe is provided with a second air outlet on the side near the filter box that cooperates with the first air outlet, and the second air outlet is connected to the air outlet chamber.

[0017] As a preferred technical solution of this utility model, the switching structure includes: a connecting shaft located at one end of the filter box, the connecting shaft being rotatably engaged with a rotating groove opened in the pipe, and the first air inlet, the second air inlet, the first air outlet, and the second air outlet being arranged in a ring around the connecting shaft as the axis of rotation.

[0018] As a preferred embodiment of this utility model, the switching structure further includes:

[0019] A threaded rod located at the end of the connecting shaft;

[0020] A bolt that mates with the threaded rod;

[0021] The first pressure ring connected to the bolt;

[0022] A second pressure ring that fits against the pipe fitting;

[0023] A spring is provided between the first pressure ring and the second pressure ring.

[0024] As a preferred embodiment of this utility model, the filter box has a recessed groove near the second air inlet and the first air outlet, and the pipe has a protrusion near the first air inlet and the second air outlet. The protrusion and the recessed groove engage with each other to restrict the rotation of the pipe relative to the filter box.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This invention features multiple independent filter chambers within a filter box to store filter elements. A switching structure connects the tubing to the filter box. After nitrogen is introduced into the filter chamber through the tubing, the filter elements filter the nitrogen. When the filter element in the used chamber becomes ineffective, the switching structure is operated to move the tubing relative to the filter box until the air inlet channel of the tubing connects to the air inlet of another conveying path in the filter box, thus quickly switching to another filter element with high efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the semi-sectional three-dimensional structure of this utility model;

[0029] Figure 3 This is a three-dimensional structural diagram of the airtight partition, filter plate, and air delivery pipe of this utility model;

[0030] Figure 4 This is a three-dimensional structural diagram of the internal structure of the filter box of this utility model;

[0031] Figure 5 This is a schematic diagram of the external three-dimensional structure of the filter box of this utility model.

[0032] In the diagram: 1. Pipe fitting; 2. Inlet chamber; 3. Inlet pipe; 4. First inlet hole; 5. Filter box; 6. Second inlet hole; 7. Airtight partition; 8. Filter plate; 9. Air delivery pipe; 10. First outlet hole; 11. Second outlet hole; 12. Outlet chamber; 13. Outlet pipe; 14. Side cover; 15. Connecting shaft; 16. Rotary groove; 17. Threaded rod; 18. First pressure ring; 19. Bolt; 20. Spring; 21. Second pressure ring; 22. Recessed groove; 23. Protrusion. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] Please see Figure 1-5 This utility model provides a technical solution: a nitrogen input device for pre-treatment of fish oil distillation, used to filter nitrogen before it is introduced into the distillation equipment, comprising:

[0035] Filter element;

[0036] Pipe fitting 1 with an air intake channel;

[0037] The filter box 5 is hollow inside. The filter box 5 is provided with multiple independent filter chambers for placing filter elements. The filter box 5 is provided with an air inlet and an air outlet that are connected to each filter chamber respectively. The air inlet and the air outlet form a conveying path for sending nitrogen into and out of the filter element.

[0038] A switching structure used to move the fitting 1 relative to the filter box 5, thereby allowing the air intake channel to connect with the air intake end of any delivery path.

[0039] The above technical solution enables rapid filter element switching. In use, first connect the air inlet channel of fitting 1 to the nitrogen pump, then connect the air inlet valve of the distillation equipment to the exhaust end of the filter box 5. Start the pump to send nitrogen through the air inlet channel of fitting 1 into the air inlet of the filter box 5. Since the air inlet is connected to the filter chamber, the nitrogen enters the filter chamber through the air inlet and contacts the filter element. The filter element absorbs impurities in the nitrogen, completing the filtration. The filtered nitrogen is then sent to the distillation equipment through the exhaust end, ensuring that the nitrogen entering the distillation equipment is pure. When the filter element in the filter chamber has failed, the switching structure is operated to move fitting 1 relative to the filter box 5 until the air inlet channel of fitting 1 connects with the air inlet of another conveying path in the filter box 5, thus switching to another filter element. There is no need to open the device to remove the filter element and then insert a new one, resulting in high efficiency.

[0040] like Figure 3 and Figure 4 As shown, in this embodiment, the filter box 5 is provided with multiple airtight partitions 7, and adjacent airtight partitions 7 form a filter chamber.

[0041] The above technical solution allows multiple filter elements to be placed in the filter box 5. The airtight partition 7 prevents nitrogen from flowing out of the filter chamber without passing through the filter elements, ensuring that all nitrogen passes through the filter elements and improving the filtration effect.

[0042] like Figure 3 As shown, in this embodiment, a filter plate 8 is provided between the airtight partitions 7, and there is a gap between the filter plate 8 and the airtight partition 7 to provide an exhaust end.

[0043] The above technical solution can further improve the filtration effect of nitrogen. After the nitrogen passes through the filter element, most of the impurities in the nitrogen have been removed. In order to ensure that the activated carbon debris used as the filter element does not block the exhaust end, a filter plate 8 is provided so that there is a gap between the exhaust end and the filter element. The filter plate 8 can only allow gas to pass through, preventing the nitrogen from being unable to enter the distillation equipment due to blockage of the exhaust end.

[0044] like Figure 2 As shown, in this embodiment, the air intake channel includes: an air intake pipe 3 located outside the pipe fitting 1, the air intake pipe 3 communicating with the air intake chamber 2 opened in the pipe fitting 1, and the pipe fitting 1 having a first air intake hole 4 that cooperates with the air intake end on its side near the filter box 5.

[0045] like Figure 2 and Figure 5 As shown, in this embodiment, the air inlet is the second air inlet hole 6 opened on the surface of the filter box 5, and the exhaust end is the air outlet opened on the surface of the airtight partition 7. The air outlet is connected to the first air outlet hole 10 opened on the surface of the filter box 5.

[0046] The above technical solution enables nitrogen gas to be transported from pipe 1 to the filter chamber of filter box 5 for filtration. In use, the air pump is connected to the air inlet pipe 3, and the first air outlet 10 is connected to the distillation equipment. The air pump is started to send nitrogen gas sequentially from the air inlet pipe 3, the air inlet chamber 2, the first air inlet 4, and the second air inlet 6 into the filter chamber between the airtight partition 7. The filter element filters the nitrogen gas, and the filtered nitrogen gas enters the bottom of filter box 5 through the air outlet on the surface of the airtight partition 7. Finally, the nitrogen gas is filled into the distillation equipment through the first air outlet 10 at the bottom of filter box 5. At this time, the nitrogen gas entering the distillation equipment is pure.

[0047] like Figure 2 and Figure 3 As shown, in this embodiment, the number of first air outlets 10 and second air inlets 6 is the same, and a delivery air pipe 9 for connecting the two is provided between the air outlet of each filter chamber and each first air outlet 10.

[0048] The above technical solution enables nitrogen gas in the filtration chamber to be sent into the distillation equipment through the first outlet 10 via the independent gas delivery pipe 9.

[0049] like Figure 2 As shown, in this embodiment, one end of the pipe 1 is provided with an air outlet pipe 13, which is connected to the air outlet chamber 12 opened inside the pipe 1. The pipe 1 is provided with a second air outlet 11 that cooperates with the first air outlet 10 on the side near the filter box 5. The second air outlet 11 is connected to the air outlet chamber 12.

[0050] The above technical solution allows filtered nitrogen to be introduced into the distillation equipment through the fitting 1. The outlet pipe 13 is connected to the distillation equipment. When the nitrogen is discharged from the first outlet hole 10, it will pass through the second outlet hole 11 and enter the outlet chamber 12 inside the fitting 1. After entering the outlet chamber 12, the nitrogen will be discharged into the distillation equipment through the outlet pipe 13.

[0051] like Figure 2 and Figure 5 As shown, in this embodiment, the switching structure includes: a connecting shaft 15 located at one end of the filter box 5, the connecting shaft 15 being rotatably engaged with the rotating groove 16 opened in the pipe fitting 1, and the first air inlet 4, the second air inlet 6, the first air outlet 10 and the second air outlet 11 being arranged in a ring around the connecting shaft 15 as the axis of rotation.

[0052] The above technical solution can switch the filter chamber, thereby switching the filter element. When in use, rotate the tube 1 to make it rotate around the connecting shaft 15 until the first air inlet 4 on the side of the tube 1 is aligned with another second air inlet 6 on the surface of the filter box 5, and the first air outlet 10 and the second air outlet 11 are aligned, thereby switching to the next filter chamber.

[0053] like Figure 1 and Figure 2 As shown, in this embodiment, the switching structure further includes: a threaded rod 17 located at the end of the connecting shaft 15; a bolt 19 that mates with the threaded rod 17; a first pressure ring 18 connected to the bolt 19; a second pressure ring 21 that fits against the pipe fitting 1; and a spring 20 located between the first pressure ring 18 and the second pressure ring 21.

[0054] like Figure 2 and Figure 5 As shown, in this embodiment, the filter box 5 has a recessed groove 22 near the second air inlet 6 and the first air outlet 10, and the pipe 1 has a protrusion 23 near the first air inlet 4 and the second air outlet 11. The protrusion 23 and the recessed groove 22 engage with each other to restrict the rotation of the pipe 1 relative to the filter box 5.

[0055] The above technical solution can prevent the pipe 1 from rotating relative to the filter box 5 due to accidental contact, prevent the first air inlet 4 and the second air inlet 6, as well as the first air outlet 10 and the second air outlet 11 from being misaligned, and avoid nitrogen leakage. When it is necessary to switch the filter chamber, the pipe 1 is dragged so that the rotating groove 16 inside slides along the connecting shaft 15 until the protrusion 23 on the side of the pipe 1 disengages from the recessed groove 22 on the side of the filter box 5. Only then can the rotation restriction between the pipe 1 and the filter box 5 be released. After rotating to the desired position, the pipe 1 is released. Under the elastic action of the spring 20, the protrusion 23 on the side of the pipe 1 is inserted back into the recessed groove 22 on the side of the filter box 5, thereby achieving rotation locking.

[0056] like Figure 1 and Figure 2 As shown, in this embodiment, a side cover 14 is detachably provided on one side of the filter box 5;

[0057] The above technical solution makes it easy to replace the filter element. When the filter element needs to be replaced, the filter box 5 can be opened by removing the side cover 14. The filter element adopts an activated carbon plate structure. The filter element and the filter chamber formed by the airtight partition 7 fit together. The side cover 14 can be fixed to the opening on one side of the filter box 5 by common connection methods, such as snap-fit ​​connection or threaded connection.

[0058] Working principle: When in use, connect the air pump to the inlet pipe 3 and the outlet pipe 13 to the distillation equipment. Start the air pump to send nitrogen gas sequentially from the inlet pipe 3, the inlet chamber 2, the first inlet hole 4 and the second inlet hole 6 into the filter chamber between the airtight partition 7. The filter element filters the nitrogen gas. The filtered nitrogen gas enters the delivery pipe 9 through the outlet on the surface of the airtight partition 7. The nitrogen gas enters the second outlet hole 11 through the delivery pipe 9, and then enters the outlet chamber 12 inside the pipe 1. After entering the outlet chamber 12, the nitrogen gas will be discharged into the distillation equipment through the outlet pipe 13. At this time, the nitrogen gas entering the distillation equipment is pure.

[0059] When the filter element in the filter chamber has failed, and a switch between filter chambers is required, drag the tube 1 so that its internal rotating groove 16 slides along the connecting shaft 15 until the protrusion 23 on the side of the tube 1 disengages from the recessed groove 22 on the side of the filter box 5. This releases the rotation restriction between the tube 1 and the filter box 5. Rotate the tube 1 to make it rotate around the connecting shaft 15 until the first air inlet 4 on the side of the tube 1 aligns with the other second air inlet 6 on the surface of the filter box 5, and the first air outlet 10 and the second air outlet 11 align. This allows you to switch to the next filter chamber. Release the tube 1, and under the elastic action of the spring 20, the protrusion 23 on the side of the tube 1 re-inserts into the recessed groove 22 on the side of the filter box 5, thus achieving rotation locking and completing the switch between the filter chamber and the filter element. This method is highly efficient.

[0060] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0061] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A nitrogen input device for pre-treatment of fish oil distillation, used to filter nitrogen before it is introduced into the distillation equipment, comprising: Filter element; The device is characterized in that it further includes: Pipe fittings (1) with an air intake channel; The filter box (5) is hollow inside. The filter box (5) is provided with multiple independent filter chambers for placing filter elements. The filter box (5) is provided with an air inlet and an air outlet that are respectively connected to each filter chamber. The air inlet and the air outlet form a conveying path for sending nitrogen into and out of the filter element. A switching structure for moving the pipe (1) relative to the filter box (5) so that the air intake channel can be connected to the air intake end of any delivery path.

2. The nitrogen input device for fish oil distillation pre-treatment according to claim 1, characterized in that, The filter box (5) is provided with multiple airtight partitions (7), and the adjacent airtight partitions (7) form a filter chamber.

3. The nitrogen input device for fish oil distillation pre-treatment according to claim 2, characterized in that, A filter plate (8) is provided between the airtight partitions (7), and there is a gap between the filter plate (8) and the airtight partitions (7) to provide an exhaust end.

4. The nitrogen input device for fish oil distillation pre-treatment according to claim 2 or 3, characterized in that, The air intake passage includes: An air inlet pipe (3) is provided outside the pipe fitting (1), and the air inlet pipe (3) is connected to the air inlet chamber (2) opened in the pipe fitting (1). The pipe fitting (1) has a first air inlet hole (4) that matches the air inlet end on the side near the filter box (5).

5. The nitrogen input device for fish oil distillation pre-treatment according to claim 4, characterized in that, The air inlet is a second air inlet (6) opened on the surface of the filter box (5), and the exhaust is an air outlet opened on the surface of the airtight partition (7). The air outlet is connected to the first air outlet (10) opened on the surface of the filter box (5).

6. The nitrogen input device for fish oil distillation pre-treatment according to claim 5, characterized in that, The number of the first air outlet (10) and the second air inlet (6) are the same, and a delivery air pipe (9) for connecting the two is provided between the air outlet of each filter chamber and each first air outlet (10).

7. The nitrogen input device for fish oil distillation pre-treatment according to claim 6, characterized in that, One end of the pipe (1) is provided with an air outlet pipe (13), which is connected to an air outlet chamber (12) opened inside the pipe (1). The pipe (1) has a second air outlet (11) that cooperates with the first air outlet (10) on the side near the filter box (5). The second air outlet (11) is connected to the air outlet chamber (12).

8. The nitrogen input device for fish oil distillation pre-treatment according to claim 7, characterized in that, The switching structure includes: a connecting shaft (15) located at one end of the filter box (5), the connecting shaft (15) being rotatably engaged with a rotating groove (16) opened in the pipe (1), and the first air inlet (4), the second air inlet (6), the first air outlet (10) and the second air outlet (11) being arranged in a ring around the connecting shaft (15) as the axis of rotation.

9. The nitrogen input device for fish oil distillation pre-treatment according to claim 8, characterized in that, The switching structure further includes: A threaded rod (17) is provided at the end of the connecting shaft (15); A bolt (19) that mates with the threaded rod (17); The first pressure ring (18) is connected to the bolt (19); A second pressure ring (21) that fits against the pipe fitting (1); A spring (20) is provided between the first pressure ring (18) and the second pressure ring (21).

10. The nitrogen input device for fish oil distillation pre-treatment according to claim 9, characterized in that, The filter box (5) has a recessed groove (22) near the second air inlet (6) and the first air outlet (10). The pipe (1) has a protrusion (23) near the first air inlet (4) and the second air outlet (11). The protrusion (23) and the recessed groove (22) engage with each other to restrict the rotation of the pipe (1) relative to the filter box (5).

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