Air supply structure of fish oil rectification purification equipment

Abstract

The utility model relates to rectification purification equipment technical field, concretely relates to a kind of gas supply structure of fish oil rectification purification equipment, including the tray main body of multilayer setting in the inner wall of rectifying column, and the tray main body between two adjacent layers is rectification cavity, the downcomer is equipped on the tray main body, the surface of the tray main body is equipped with overflow weir on the side away from the downcomer, the tray main body is evenly distributed with strip opening, when using, gas passes stage, by the flow guide cavity in strip opening, i.e. the serpentine gas phase passage inside flow guide cavity, to extend the contact time between gas phase and the liquid to be purified, when gas flow rate is too fast, floating part can produce certain vertical displacement according to air flow velocity variation, to make that pressure reduction can also be realized gas phase path further increase, avoid gas phase short circuit, make the EPA and DHA content proportion of product increase, and then promote the effect of product single effective component.

Description

Technical Field

[0001] This utility model relates to the field of distillation and purification equipment technology, and in particular to a gas supply structure for a fish oil distillation and purification equipment. Background Technology

[0002] In fish oil distillation and purification equipment, the degree of contact between the gas supplied by the gas supply module and the liquid inside the equipment will affect the fish oil purification effect, that is, affect the separation accuracy of EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) in the final product. The existing gas supply method usually involves the gas entering through the side vents of the equipment and passing through multiple perforated trays, so that the liquid phase forms a liquid seal between the trays.

[0003] For example, Chinese patent application number CN202321926519.3 discloses a purification distillation column for recovering acid. The column includes a feed pipe installed in the middle of its surface, a gas outlet pipe connected to the top, and a discharge pipe installed at the bottom. A distillation mechanism is fixedly installed inside the column. Gas passes through the pores and forms sufficient gas-liquid contact with the liquid phase on the surface of the trays, ensuring that the acidic liquid in the waste liquid is converted into gas and evaporates. Its structure is simple, easy to maintain, has a large processing capacity, stable efficiency, and high reliability. However, the fixed opening ratio on the trays makes it difficult to control the gas flow rate when used for fish oil distillation and purification. This can easily lead to a "perforation" phenomenon, where gas passes directly through the trays without sufficient contact with the liquid, resulting in the inability to effectively separate high-purity EPA and DHA. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a gas supply structure for a fish oil distillation and purification equipment, so as to solve the technical problem that the opening ratio of the trays in the existing purification distillation column is fixed. When applied to fish oil distillation and purification, the gas flow rate is not easy to control, which easily leads to the "perforation" phenomenon, that is, the gas directly passes through the tray without sufficient contact with the liquid, resulting in the inability to effectively separate high-purity EPA and DHA.

[0005] To achieve the above objectives, this utility model provides a gas supply structure for a fish oil distillation and purification equipment, comprising multiple layers of tray bodies arranged on the inner wall of a distillation column, with a distillation chamber between two adjacent tray bodies, a downcomer on each tray body, an overflow weir on the surface of each tray body away from the downcomer, and strip-shaped openings evenly distributed on the tray body. The gas supply structure further includes:

[0006] A flow guiding cavity is provided within a plurality of the aforementioned strip-shaped openings, the interior of the flow guiding cavity being a serpentine gas phase channel, the port of which is connected to the distillation chamber;

[0007] A floating section for increasing the gas phase path is movably disposed within the strip-shaped opening, and the flow guiding cavity is fixedly installed on the floating section.

[0008] Furthermore, the floating part includes:

[0009] A fixed-distance bracket is movable within the strip-shaped opening, and the fixed-distance bracket has an air connection port in the middle.

[0010] A detachable warped flow cover is provided on the upper end of the fixed-distance bracket. The warped flow cover covers the upper end of the strip-shaped opening. The middle part of the warped flow cover is warped, so that the flow guide cavity is connected to the distillation cavity.

[0011] Furthermore, the warped overflow cover is detachably provided with inserts on both sides, and the strip opening is provided with slots on both sides, with the inserts engaging with the slots.

[0012] Furthermore, the overflow weir extends along both sides of the edge of the main body of the tower plate.

[0013] Furthermore, the overflow weir includes a main weir body and an auxiliary weir body, the height of which is half that of the main weir body.

[0014] Furthermore, the serpentine gas phase channel of the flow guide cavity consists of at least four layers of folded sections.

[0015] Furthermore, the upper port of the flow guide cavity faces the warped flow cover.

[0016] Furthermore, the lower end of the fixed-distance bracket is provided with a limiting foot, and the side end of the limiting foot extends beyond the strip opening.

[0017] The beneficial effects of this invention are as follows: During use, the gas passes through a stage and is guided by a serpentine gas phase channel inside the strip-shaped opening, which prolongs the contact time between the gas phase and the liquid to be purified. When the gas flow rate is too fast, the floating part will generate a certain vertical displacement according to the change in airflow speed, so as to reduce the pressure and further increase the gas phase path, avoid gas phase short circuit, increase the EPA and DHA content ratio of the product, and thus improve the effect of the individual active ingredients of the product. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the assembly of the tower plate body and the flow guiding cavity in this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the floating part in this utility model;

[0023] Figure 5 This is a schematic diagram of the assembly of the main tower plate and the floating part in this utility model.

[0024] The diagram is marked as follows:

[0025] 1. Tray body; 2. Downcomer; 3. Strip opening; 4. Flow guide cavity; 5. Spacing support; 6. Gas connection port; 7. Warped flow cover; 8. Insert block; 9. Slot; 10. Main weir; 11. Auxiliary weir; 12. Limiting foot. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] The first aspect of this utility model proposes a gas supply structure for a fish oil distillation and purification device, such as... Figure 1-5 As shown, the distillation column includes multiple layers of tray bodies 1 arranged on its inner wall. A distillation chamber is located between two adjacent tray bodies 1. A downcomer 2 is provided on the tray body 1. An overflow weir is provided on the surface of the tray body 1 away from the downcomer 2. Strip-shaped openings 3 are evenly distributed on the tray body 1. The gas supply structure also includes:

[0029] A flow guiding cavity 4 is provided within several strip-shaped openings 3. The interior of the flow guiding cavity 4 is a serpentine gas phase channel, and the port of the gas phase channel is connected to the distillation chamber.

[0030] A floating section is used to increase the gas phase path. The floating section is movably located inside the strip-shaped opening 3, and the flow guiding cavity 4 is fixedly installed on the floating section.

[0031] In this embodiment, during use, the gas phase enters from the lower inlet of the distillation column and passes through each tray body 1 from bottom to top. The liquid to be purified enters from the upper feed inlet of the distillation column. The liquid flows into the surface of the tray body 1 through the downcomer 2. Under the action of the overflow weir, the liquid forms a liquid seal on the tray body 1. The gas passes through the stage and is guided by the flow guide cavity 4 in the strip opening 3, that is, the serpentine gas phase channel inside the flow guide cavity 4, to prolong the contact time between the gas phase and the liquid to be purified. Moreover, when the gas flow rate is too fast, the floating part will generate a certain vertical displacement according to the change of gas flow rate, so as to reduce the pressure and further increase the gas phase path.

[0032] In this embodiment, as Figure 1 , Figure 4 As shown, the floating part includes:

[0033] A fixed-distance bracket 5 is installed in the strip-shaped opening 3, and an air connection port 6 is provided in the middle of the fixed-distance bracket 5;

[0034] A detachable warped flow cover 7 is installed on the upper end of the fixed-distance support 5. The warped flow cover 7 covers the upper end of the strip opening 3. The middle part of the warped flow cover 7 is warped, so that the flow guide cavity 4 is connected to the distillation cavity. When the gas flow rate is too fast, the fixed-distance support 5 moves vertically upward within the strip opening 3 according to the gas velocity. At the same time as the gas passes through the flow guide cavity 4, it will also enter the surface liquid seal of the tray body 1 through the gas connection port 6 to further increase the gas phase path.

[0035] In this embodiment, as Figure 1 , Figure 4 As shown, the warped overflow cover 7 is provided with detachable inserts 8 on both sides, and slots 9 are provided on both sides of the strip opening 3. The inserts 8 and slots 9 cooperate with each other, and with precise alignment, the floating part can be prevented from tilting and leaking in the fish oil distillation and purification equipment.

[0036] In this embodiment, as Figure 1 , Figure 5 As shown, the overflow weir runs along both sides of the edge of the main body of the tower plate 1. The overflow weir includes a main weir body 10 and an auxiliary weir body 11. The height of the auxiliary weir body 11 is half that of the main weir body 10, ensuring the surface liquid seal thickness of the main body of the tower plate 1.

[0037] In this embodiment, as Figure 5As shown, the serpentine gas phase channel of the flow guide cavity 4 consists of at least four layers of folded sections, and the upper port of the flow guide cavity 4 faces the warped overflow cover 7, which prolongs the contact time between the gas phase and the liquid to be purified.

[0038] In this embodiment, as Figure 4 As shown, the lower end of the fixed-distance bracket 5 is provided with a limiting foot 12, and the side end of the limiting foot 12 extends beyond the strip opening 3 to prevent the floating part from moving excessively upward.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0040] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas supply structure for a fish oil distillation and purification device, comprising multiple layers of tray bodies (1) arranged on the inner wall of a distillation column, wherein a distillation chamber is formed between two adjacent layers of the tray bodies (1), a downcomer (2) is provided on the tray body (1), and an overflow weir is provided on the surface of the tray body (1) away from the downcomer (2), characterized in that, The main body of the tower plate (1) has strip-shaped openings (3) evenly distributed on it, and the gas supply structure further includes: A flow guiding cavity (4) is provided in several of the strip-shaped openings (3), the interior of the flow guiding cavity (4) is a serpentine gas phase channel, and the port of the gas phase channel is connected to the distillation chamber; A floating section for increasing the gas phase path is movably disposed within the strip opening (3), and the flow guiding cavity (4) is fixedly installed on the floating section.

2. The gas supply structure of the fish oil distillation and purification equipment according to claim 1, characterized in that, The floating part includes: A spacer bracket (5) is installed in the strip opening (3), and the spacer bracket (5) has an air connection port (6) in the middle. A detachable warped overflow cover (7) is provided on the upper end of the fixed-distance bracket (5). The warped overflow cover (7) covers the upper end of the strip opening (3). The middle part of the warped overflow cover (7) is warped, so that the flow guide cavity (4) is connected to the distillation cavity.

3. The gas supply structure of the fish oil distillation and purification equipment according to claim 2, characterized in that, The warped overflow cover (7) is provided with detachable inserts (8) on both sides, and slots (9) are provided on both sides of the strip opening (3), with the inserts (8) cooperating with the slots (9).

4. The gas supply structure of the fish oil distillation and purification equipment according to claim 1, characterized in that, The overflow weir runs along both sides of the edge of the main body of the tower plate (1).

5. The gas supply structure of the fish oil distillation and purification equipment according to claim 4, characterized in that, The overflow weir includes a main weir body (10) and an auxiliary weir body (11), the height of which is half that of the main weir body (10).

6. The gas supply structure of the fish oil distillation and purification equipment according to claim 1, characterized in that, The serpentine gas phase channel of the flow guide cavity (4) consists of at least four layers of folded sections.

7. The gas supply structure of the fish oil distillation and purification equipment according to claim 2, characterized in that, The upper port of the flow guide cavity (4) faces the warped flow cover (7).

8. The gas supply structure of the fish oil distillation and purification equipment according to claim 2, characterized in that, The lower end of the fixed-distance bracket (5) is provided with a limiting foot (12), and the side end of the limiting foot (12) extends beyond the strip opening (3).

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