An overflow distributor for a honeycomb structure

Abstract

The utility model relates to a honeycomb structure's overflow distributor, including overflow subassembly: the overflow subassembly includes, the inside of ring body is provided with multiple groups of frame body, the bottom of frame body is inserted into the inside of frame body and is symmetrically arranged to the flow guide pipe, first through ring body and install it to rectifying tower inner wall, deliver liquid to the inside of frame body, liquid will pass through overflow tank, enter the inside of flow guide pipe, then liquid will enter the inside of hexagonal honeycomb box, liquid will overflow through the top of hexagonal honeycomb box, then through the liquid of setting up six flow guide vane and guide, the overflow tank flow of this device through flow guide pipe, the pressure drop is smaller, can reach the effect of quick flow, liquid flows into the hexagonal honeycomb box, through six flow guide vane makes 1 distribution point become 6 liquid distribution points, and the distribution point density increases 6 times, improves the distribution effect of liquid.

Description

Technical Field

[0001] This utility model relates to the technical field of distributors, and in particular to an overflow distributor with a honeycomb structure. Background Technology

[0002] Polyether polyols, as one of the important raw materials in the polyurethane industry, are widely used in various fields of life, such as furniture building materials, automotive interiors, and insulation materials. However, polyether products in conventional industrial production contain low-boiling-point volatile substances such as formaldehyde, propionaldehyde, and acrolein, which need to be treated by a distributor. The distributor is a key device installed at the top of the packed tower. It is mainly used to evenly distribute the reflux liquid and liquid phase feed onto the surface of the packing to form an initial liquid distribution, so as to avoid the problem of the central area of ​​the packing not being wetted due to wall flow phenomenon, thereby improving the tower efficiency.

[0003] Currently, the mainstream and energy-efficient method for devolatilization is to use a structured packed stripper, which uses steam or nitrogen to strip away low-boiling-point substances such as formaldehyde, propionaldehyde, and acrolein trapped in polyether polyols. The main factors affecting the devolatilization of polyether products in the stripper are the structured packing and the liquid distributor, especially the pre-distribution of the liquid distributor, which plays a crucial role in maximizing the packing efficiency.

[0004] Because polyether products have high viscosity, the liquid spray density is low when designing stripping towers. Conventional gravity liquid distributors do not take into account the distribution effect under high viscosity and low spray density, resulting in uneven liquid distribution. This causes the packing efficiency to not be fully utilized, the overall tower efficiency to decrease, and the devolatilization effect to be affected. Utility Model Content

[0005] The purpose of this invention is to provide a honeycomb structure overflow distributor to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] An overflow distributor with a honeycomb structure includes an overflow assembly: the overflow assembly includes: multiple sets of frames disposed inside the inner side of a ring; guide pipes symmetrically disposed at the bottom of the frames and inserted into the inner side of the frames; overflow grooves symmetrically opened on the guide pipes; a hexagonal honeycomb box disposed at the bottom of the guide pipes; screws symmetrically disposed on the outside of the hexagonal honeycomb box and threadedly connected to the hexagonal honeycomb box; and guide vanes symmetrically disposed at the bottom of the hexagonal honeycomb box.

[0008] Optionally, the frame is provided with an auxiliary component, the auxiliary component including: a connecting pipe disposed on the opposite sides of the two sets of frames and connected to each other through the connecting pipe.

[0009] Optionally, the auxiliary component further includes a connecting ring disposed at the bottom of the hexagonal honeycomb box.

[0010] Optionally, the auxiliary component further includes: a concave frame symmetrically disposed inside the hexagonal honeycomb box.

[0011] Optionally, the guide pipe is connected to the frame by bolts.

[0012] Optionally, the auxiliary component further includes: rods symmetrically arranged inside the frame.

[0013] Optionally, the rod body is a screw.

[0014] Optionally, the auxiliary component further includes a threaded groove formed on the outside of the connecting ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] First, the ring is installed on the inner wall of the distillation column, and the liquid is transported into the frame. The liquid will enter the interior of the guide pipe through the overflow channel, and then enter the interior of the hexagonal honeycomb box. The liquid will overflow from the top of the hexagonal honeycomb box, and then be guided by six guide vanes to achieve the function of liquid distribution. The flow through the overflow channel of the guide pipe has a small pressure drop and can achieve a rapid flow effect. The liquid flows into the hexagonal honeycomb box, and the six guide vanes turn one distribution point into six liquid distribution points, increasing the distribution point density by 6 times, improving the liquid distribution effect, and thus making full use of the packing performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this application;

[0019] Figure 2 This is a schematic diagram of the internal structure of the frame side in this application;

[0020] Figure 3 This is a schematic diagram of the internal structure of the hexagonal honeycomb box on the side of the present application.

[0021] Figure 4 This is a schematic diagram of the bottom structure of the hexagonal honeycomb box in this application.

[0022] Figure label:

[0023] 1. Overflow assembly; 11. Ring body; 12. Frame body; 13. Guide pipe; 131. Overflow groove; 14. Hexagonal honeycomb box; 15. Screw; 16. Guide vane;

[0024] 2. Auxiliary components; 21. Connecting pipe; 22. Connecting ring; 23. Concave frame; 24. Rod body; 25. Threaded groove. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Given that in the current technology, due to the high viscosity of polyether products, the liquid spray density is low when designing stripping towers, conventional gravity liquid distributors do not take into account the distribution effect under high viscosity and low spray density, resulting in uneven liquid distribution, which prevents the packing efficiency from being fully utilized, reduces the overall tower efficiency, and affects the devolatilization effect.

[0028] like Figure 1-4 As shown, this utility model embodiment provides a honeycomb structure overflow distributor, including an overflow component 1: the overflow component 1 includes: a plurality of frames 12 disposed inside the ring 11; a guide pipe 13 symmetrically disposed at the bottom of the frame 12 and inserted into the inside of the frame 12; overflow grooves 131 symmetrically opened on the guide pipe 13; a hexagonal honeycomb box 14 disposed at the bottom of the guide pipe 13; a screw 15 symmetrically disposed outside the hexagonal honeycomb box 14 and threadedly connected to the hexagonal honeycomb box 14; and guide vanes 16 symmetrically disposed at the bottom of the hexagonal honeycomb box 14.

[0029] When processing polyether products with low viscosity, the liquid is first installed on the inner wall of the distillation column via the ring 11. Then, the liquid is transported into the interior of the frame 12. When the liquid accumulates to a predetermined level, it enters the interior of the guide pipe 13 through multiple overflow channels 131 on both sides. The liquid then enters the interior of the hexagonal honeycomb box 14 and overflows from the top. The liquid is then guided by six guide vanes 16, thus achieving liquid distribution. The flow through the overflow channels 131 of the guide pipe 13 results in a small pressure drop and rapid flow. The liquid flows into the hexagonal honeycomb box 14, and the six guide vanes 16 transform one distribution point into six liquid distribution points, increasing the distribution point density by six times and improving the liquid distribution effect. This allows the packing performance to be fully utilized.

[0030] Furthermore, the diameter of the overflow groove 131 is 2 to 20 mm.

[0031] Furthermore, an auxiliary component 2 is provided on the frame 12, the auxiliary component 2 including: a connecting pipe 21 disposed on the opposite surfaces of the two sets of frames 12 and connected to each other through the connecting pipe 21.

[0032] Multiple sets of connecting pipes 21 are provided on the opposite sides of multiple sets of frames 12, and the liquid inside the multiple sets of frames 12 is connected through the connecting pipes 21, that is, the liquid can flow freely in multiple sets of frames 12 to maintain the liquid level inside the multiple sets of frames 12.

[0033] Furthermore, the auxiliary component 2 also includes a connecting ring 22 disposed at the bottom of the hexagonal honeycomb box 14.

[0034] A connecting ring 22 is provided at the bottom of the hexagonal honeycomb box 14. This can increase the structural strength of the guide vane 16 and increase the service life of the guide vane 16.

[0035] Furthermore, the auxiliary component 2 also includes a concave frame 23 symmetrically disposed inside the hexagonal honeycomb box 14.

[0036] The concave frame 23 is symmetrically arranged on the inner side wall of the concave frame 23. When installing the hexagonal honeycomb box 14 later, the guide tube 13 can be inserted into the inner side of the concave frame 23 to simply limit the hexagonal honeycomb box 14 so that it can be fixed by the screw 15 later.

[0037] Furthermore, the guide pipe 13 is connected to the frame 12 by bolts.

[0038] The guide tube 13 is bolted to the frame 12, which makes it easy to disassemble the guide tube 13 and replace it with guide tubes of different specifications later.

[0039] Furthermore, the auxiliary component 2 also includes rods 24 symmetrically arranged inside the frame 12.

[0040] A rod 24 is provided on one side of the inner side of the frame 12. When the guide pipe 13 is installed later, the rod 24 can be used to limit the guide pipe 13, so as to avoid the guide pipe 13 being of different lengths and affecting the flow of materials.

[0041] Furthermore, the rod 24 is a screw.

[0042] The rod 24 is configured as a screw and threadedly connected to the frame 12. This way, when the rod 24 is damaged or deformed, it can be disassembled by screwing and replaced.

[0043] Furthermore, the auxiliary component 2 also includes a threaded groove 25 formed on the outside of the connecting ring 22.

[0044] A threaded groove 25 is made on the outer wall of the connecting ring 22 and threadedly connected to the hexagonal honeycomb box 14. In this way, when the guide vane 16 is damaged or deformed in the future, the guide vane 16 can be removed and replaced by screwing.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any 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 honeycomb structure overflow distributor, characterized in that, Including an overflow component (1): the overflow component (1) includes; The ring (11) has multiple sets of frames (12) on its inner side; The guide tube (13) is symmetrically arranged at the bottom of the frame (12) and inserted into the inside of the frame (12); Overflow channels (131) are symmetrically arranged on the guide pipe (13); A hexagonal honeycomb box (14) is disposed at the bottom of the guide tube (13); The screw (15) is symmetrically arranged on the outside of the hexagonal honeycomb box (14) and threadedly connected to the hexagonal honeycomb box (14); The air guide vanes (16) are symmetrically arranged at the bottom of the hexagonal honeycomb box (14).

2. The overflow distributor with a honeycomb structure according to claim 1, characterized in that, An auxiliary component (2) is provided on the frame (12), and the auxiliary component (2) includes: A connecting pipe (21) is provided on the opposite sides of the two sets of frames (12) and is connected to each other through the connecting pipe (21).

3. The overflow distributor with a honeycomb structure according to claim 2, characterized in that, The auxiliary component (2) also includes; A connecting ring (22) is disposed at the bottom of the hexagonal honeycomb box (14).

4. The overflow distributor with a honeycomb structure according to claim 3, characterized in that, The auxiliary component (2) also includes; A concave frame (23) is symmetrically arranged inside the hexagonal honeycomb box (14).

5. An overflow distributor with a honeycomb structure according to claim 4, characterized in that, The guide pipe (13) is connected to the frame (12) by bolts.

6. An overflow distributor with a honeycomb structure according to claim 5, characterized in that, The auxiliary component (2) also includes; The rod (24) is symmetrically arranged inside the frame (12).

7. An overflow distributor with a honeycomb structure according to claim 6, characterized in that, The rod (24) is a screw.

8. An overflow distributor with a honeycomb structure according to claim 7, characterized in that, The auxiliary component (2) also includes; A threaded groove (25) is formed on the outside of the connecting ring (22).

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