Liquid collection redistributor

Abstract

The utility model relates to the technical field of distributors, and discloses a liquid collection redistributor which comprises a liquid collection tank arranged in a tower, the liquid collection tank comprises a peripheral side wall and a bottom plate, the top of the liquid collection tank is provided with a liquid inlet, the bottom plate is provided with a liquid outlet, the liquid outlet is connected with a downcomer in a penetrating mode, and the downcomer is provided with a downcomer hole close to the inner side of the bottom plate. One end of the downcomer penetrates through the liquid outlet and extends out of the liquid collecting tank, the other end of the downcomer is located in the liquid collecting tank, and a distribution assembly is arranged at the position, corresponding to the downcomer, of the bottom of the liquid collecting tank; the distribution assembly comprises a base plate and a surrounding plate connected to the periphery of the base plate, and a plurality of distribution holes are formed in the side wall of the surrounding plate and located above the base plate. According to the invention, the problem of non-uniform distribution of the liquid collection redistributor is improved, and the liquid is uniformly distributed through the redistribution device.

Description

Technical Field

[0001] The present application relates to the technical field of distributors, and in particular to a liquid collecting and redistributing device. Background Art

[0002] The collecting and redistributing device is used in the distillation tower. It can overcome the amplification effect of the packed tower in industrial applications, especially the large tower, prevent the deviation of the liquid in the tower, remix and recombine the liquid after the gas-liquid separation of a section of the packing, and then reasonably distribute it to the lower layer of packing for re-separation.

[0003] The existing liquid collecting and redistributing device distributes the liquid to the lower layer of materials. The liquid collecting and redistributing device directly distributes the liquid through the downcomer. The liquid distribution point is relatively single, the liquid distribution is not uniform enough, and the liquid distribution efficiency is low. Utility Model Content

[0004] In order to improve the problem of single liquid distribution in a liquid collecting and redistributing device, the present application provides a liquid collecting and redistributing device.

[0005] The present application provides a liquid collecting and redistributing device, which adopts the following technical solution:

[0006] A liquid collecting and redistributing device comprises a liquid collecting tank arranged in a tower, the liquid collecting tank comprises a peripheral side wall and a bottom plate, a liquid inlet is arranged on the top of the liquid collecting tank, a liquid outlet is opened on the bottom plate, a downcomer is connected through the liquid outlet, a downcomer is arranged near the inner side of the bottom plate, one end of the downcomer passes through the liquid outlet and extends to the outside of the liquid collecting tank, the other end of the downcomer is located in the liquid collecting tank, a distribution component is arranged at the bottom of the liquid collecting tank corresponding to the position of the downcomer; the distribution component comprises a chassis and a surrounding plate connected to the chassis in a circumferential direction, a plurality of distribution holes are arranged on the side wall of the surrounding plate, and the distribution holes are located above the chassis.

[0007] By adopting the above technical solution, the liquid collecting tank transfers the liquid to the distribution assembly through the downcomer, and the distribution assembly evenly distributes the liquid to the lower layer through a number of distribution holes, increasing the number of dripping points, which is conducive to the uniform distribution of the liquid. The bottom plate and the enclosure collect the liquid flowing out of the downcomer, and the liquid overflows through a number of distribution holes. The liquid flows downward along the outer wall of the enclosure and drips along the lower edge of the enclosure, which improves the uniformity of the liquid distribution.

[0008] Optionally, a plurality of overflow ports for liquid distribution are provided on the upper edge of the enclosure.

[0009] By adopting the above technical solution, when the amount of liquid in the distribution component increases greatly, the liquid overflows from the overflow port, and the overflow port ensures the uniformity of liquid distribution when the amount of liquid increases greatly.

[0010] Optionally, a notch-shaped dripping portion is provided at the bottom of the enclosure.

[0011] By adopting the above technical solution, the liquid drips along the dripping part, which is conducive to uniform distribution of the liquid.

[0012] Optionally, a support base for supporting the distribution component is provided at the bottom of the liquid collecting tank, one end of the support base is fixedly connected to the bottom of the liquid collecting tank, and the other end is against the bottom of the tower.

[0013] By adopting the above technical solution, the support seat plays a supporting role to ensure the stability of the liquid collection and redistributor in the tower; at the same time, the support seat ensures that there is a certain distance between the distribution component and the bottom of the tower, which is convenient for liquid distribution.

[0014] Optionally, a connecting plate for connecting the distribution component is provided at the bottom of the liquid collecting tank, one end of the connecting plate is fixedly connected to the liquid collecting tank, and the other end is detachably connected to the distribution component via a detachable connecting component.

[0015] By adopting the above technical solution, the connecting plate is used to fix the distribution component, and the connecting plate and the distribution component are detachably connected, which facilitates the disassembly and assembly of the distribution component.

[0016] Optionally, the top height of the downcomer is lower than the height of the liquid inlet.

[0017] By adopting the above technical solution, when the liquid level in the liquid collecting tank exceeds the top of the downcomer, the liquid flows from the top of the downcomer into the lower distribution assembly, ensuring that the liquid in the liquid collecting tank will not overflow from the liquid inlet.

[0018] Optionally, a bottom edge of the downcomer is flush with a side edge of the bottom plate away from the distribution assembly.

[0019] By adopting the above technical solution, the liquid downhole is flush with the side of the bottom plate, which is conducive to the complete outflow of the liquid in the liquid collecting tank and the liquid will not accumulate on the bottom plate.

[0020] Optionally, a fixing ring is provided on the outer wall of the liquid collecting tank near the liquid inlet, and the fixing ring is fixedly connected to the tower. The liquid inlet of the liquid collecting tank is provided with a notch, and the bottom of the notch is flush with the fixing ring.

[0021] By adopting the above technical solution, the fixing ring ensures the stability of the liquid collecting tank, which facilitates the installation of the liquid collecting tank; at the same time, it is conducive to the liquid entering the liquid collecting tank, and it is not easy to leave residue.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: a distribution component is arranged under the downcomer, and the liquid dripping from the downcomer is redistributed through the distribution component, thereby increasing the number of liquid dripping points and facilitating uniform distribution of the liquid; the liquid collecting tank is supported by a support seat, making the liquid collecting tank more stable, and at the same time a certain distance is set between the distribution component and the bottom of the tower, which is convenient for dripping and is beneficial to the distribution of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the top view of the structure of the liquid collection and redistributor of the present application.

[0024] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of AA.

[0025] Figure 3 It is a structural schematic diagram of the downcomer of the present application.

[0026] Figure 4 It is a structural schematic diagram of the connection between the connecting plate and the distribution component of the present application.

[0027] Figure 5 It is a structural schematic diagram of the liquid fixing ring of the present application.

[0028] Figure numerals: 1. liquid collecting tank; 11. peripheral side wall; 12. bottom plate; 13. liquid inlet; 14. liquid outlet; 15. notch; 2. downcomer; 21. downcomer hole; 3. fixing ring; 31. connecting part; 4. distribution component; 41. chassis; 42. enclosure; 43. distribution hole; 44. overflow port; 45. dripping part; 46. threaded hole; 5. connecting plate; 51. mounting hole; 6. support seat; 7. fastener; 8. bolt; 9. sealing gasket. DETAILED DESCRIPTION

[0029] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings.

[0030] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0031] The present application embodiment discloses a liquid collecting and redistributing device, referring to Figure 1 and Figure 2, including a liquid collecting tank 1 arranged in the tower, the liquid collecting tank 1 is cylindrical as a whole, and includes a peripheral side wall 11 and a bottom plate 12. A liquid inlet 13 is arranged on the top of the liquid collecting tank 1, and a liquid outlet 14 is opened on the bottom plate 12. A downcomer 2 is connected through the liquid outlet 14. A downcomer 2 is arranged on the downcomer 2 near the inner side of the bottom plate 12. One end of the downcomer 2 passes through the liquid outlet 14 and extends to the outside of the liquid collecting tank 1. The other end of the downcomer 2 is located in the liquid collecting tank 1, and the top height of the downcomer 2 is lower than the height of the liquid inlet 13. A distribution component 4 is arranged at the bottom of the liquid collecting tank 1 corresponding to the position of the downcomer 2, and a plurality of distribution holes 43 are arranged on the distribution component 4 to facilitate the outflow of liquid.

[0032] A fixing ring 3 is welded to the outer wall of the liquid collecting tank 1 near the liquid inlet 13, and a notch 15 is provided near the liquid inlet 13 of the liquid collecting tank 1, and the bottom of the notch 15 is flush with the fixing ring 3. The notch 15 is conducive to allowing the liquid on the upper part of the fixing ring 3 to enter the liquid collecting tank 1, so that it is not easy to have residue, thereby improving the uniformity of the liquid.

[0033] In order to improve the stability of the liquid collecting tank 1 in the tower, two support seats 6 are symmetrically welded at the bottom of the liquid collecting tank 1. The support seat 6 is a U-shaped structure. The inner sides of the U-shaped ends of the support seat 6 are respectively welded to the side walls of the liquid collecting tank 1. The end of the support seat 6 away from the liquid collecting tank 1 is abutted against the bottom of the tower. The support seats 6 are symmetrically arranged on both sides of the liquid collecting tank 1 to support the liquid collecting tank 1 and ensure the stability of the liquid collection and redistributor in the tower.

[0034] Reference Figure 2 and Figure 3 The height of one end of the downcomer 2 away from the liquid outlet 14 is lower than the height of the liquid inlet 13. When the liquid in the liquid collecting tank 1 increases, the liquid level in the liquid collecting tank 1 exceeds the top of the downcomer 2, which is conducive to the liquid flowing from the top opening of the downcomer 2 to the distribution component 4 for liquid redistribution. The bottom edge of the downcomer hole 21 is flush with the inner side of the bottom plate 12, which is conducive to the complete distribution of the liquid in the liquid collecting tank 1, and it is not easy to have residue on the bottom plate 12 in the liquid collecting tank 1.

[0035] Reference Figure 2 and Figure 4 A connecting plate 5 is welded at the bottom of the liquid collecting tank 1 corresponding to the position of the downcomer 2 , one end of the connecting plate 5 is welded to the bottom of the liquid collecting tank 1 , and an installation hole 51 for connecting the distribution component 4 is opened at one end of the connecting plate 5 away from the liquid collecting tank 1 .

[0036] The distribution assembly 4 includes a chassis 41 and a circumferential enclosure 42 welded to the chassis 41. The chassis 41 and the enclosure 42 are preferably made of stainless steel. The chassis 41 is in the shape of a disk, and the enclosure 42 is a cylindrical hollow tubular structure. The enclosure 42 is made of a porous plate material with circular holes distributed at equal intervals. The chassis 41 is placed near the middle of the enclosure 42. The enclosure 42 and the upper side of the chassis 41 form an annular distribution groove for receiving liquid drops from the downcomer 2. Several distribution holes 43 are evenly distributed on the enclosure 42 and located above the chassis 41. Several distribution holes 43 are located at the same height. A threaded hole 46 is opened on the chassis 41 corresponding to the position of the connecting plate 5. The connecting plate 5 is threadedly connected to the threaded hole 46 through the bolt 8 passing through the mounting hole 51, so that the connecting plate 5 and the chassis 41 are fixedly connected. A sealing gasket 9 is provided between the bolt 8 and the connecting plate 5 to prevent liquid leakage. A plurality of equally spaced overflow ports 44 are provided on the upper edge of the enclosure 42, and the overflow ports 44 are in an arc-shaped groove structure. The overflow holes 44 are formed by cutting the upper edge of the enclosure 42 along the original circular hole positions on the enclosure 42; the lower edge of the enclosure 42 is provided with equally spaced and equally distributed grooves, and the grooves are formed by cutting the lower edge of the enclosure 42 along the original circular hole positions on the enclosure 42, so that the lower edge of the enclosure 42 is a notch-shaped dripping portion 45, which facilitates the liquid to drip from the dripping portion 45 and is conducive to uniform distribution of the liquid.

[0037] Reference Figure 2 and Figure 5 The fixing ring 3 is annular in structure, and recessed connecting parts 31 are provided on both sides of the outer edge of the fixing ring 3 for easy installation. The connecting parts 31 abut against the inside of the tower, making the fixing ring 3 more firmly installed. A set distance is left between the fixing ring 3 and the liquid inlet 13, and recessed connecting parts 31 are provided on both sides of the outer edge of the fixing ring 3. The connecting parts 31 are welded inside the tower and extend outside the tower. The connecting parts 31 outside the tower are fixed by fasteners 7.

[0038] The implementation principle of a liquid collecting and redistributing device in the embodiment of the present application is as follows: when distributing liquid, the liquid in the liquid collecting tank 1 flows into the downcomer 2 from the downcomer hole 21, the liquid flows into the distribution component 4 along the downcomer 2, the liquid overflows from the distribution hole 43, and flows along the outer wall of the enclosure 42 to the dripping portion 45 at the lower edge, and then drips to the lower material to complete the uniform distribution of the liquid. When the liquid in the liquid collecting tank 1 increases significantly, the liquid level exceeds the top of the downcomer 2, and the liquid flows into the downcomer 2 from the downcomer hole 21 and the top opening of the downcomer 2 at the same time. When the liquid in the distribution component 4 increases significantly, the overflow port 44 participates in the liquid distribution, and the liquid flows out from the overflow port 44 set on the upper edge of the enclosure 42, and the liquid flows along the outer wall of the enclosure 42 to the dripping portion 45.

[0039] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A liquid collecting and redistributing device, characterized in that: The tower comprises a liquid collecting tank (1) arranged in the tower, the liquid collecting tank (1) comprising a peripheral side wall (11) and a bottom plate (12), a liquid inlet (13) being arranged at the top of the liquid collecting tank (1), a liquid outlet (14) being arranged on the bottom plate (12), a downcomer (2) being connected through the liquid outlet (14), a downcomer (2) being arranged near the inner side of the bottom plate (12), one end of the downcomer (2) passing through the liquid outlet (14) , and extends outside the liquid collecting tank (1), the other end of the downcomer (2) is located inside the liquid collecting tank (1), and a distribution assembly (4) is arranged at the bottom of the liquid collecting tank (1) corresponding to the position of the downcomer (2); the distribution assembly (4) comprises a bottom plate (41) and a surrounding plate (42) connected to the circumference of the bottom plate (41), a plurality of distribution holes (43) are arranged on the side wall of the surrounding plate (42), and the distribution holes (43) are located above the bottom plate (41).

2. The liquid collecting and redistributing device according to claim 1, characterized in that: The upper edge of the enclosure plate (42) is provided with a plurality of overflow ports (44) for liquid distribution.

3. The liquid collecting and redistributing device according to claim 1, characterized in that: A notch-shaped dripping portion (45) is provided at the bottom of the enclosure plate (42).

4. The liquid collecting and redistributing device according to claim 1, characterized in that: A support base (6) for supporting the distribution component (4) is provided at the bottom of the liquid collecting tank (1); one end of the support base (6) is fixedly connected to the bottom of the liquid collecting tank (1), and the other end is in contact with the bottom of the tower.

5. The liquid collecting and redistributing device according to claim 4, characterized in that: A connecting plate (5) for connecting to the distribution component (4) is provided at the bottom of the liquid collecting tank (1); one end of the connecting plate (5) is fixedly connected to the liquid collecting tank (1), and the other end is detachably connected to the distribution component (4) via a detachable connecting component.

6. The liquid collecting and redistributing device according to claim 1, characterized in that: The top height of the downcomer (2) is lower than the height of the liquid inlet (13).

7. The liquid collecting and redistributing device according to claim 1, characterized in that: The bottom edge of the downcomer hole (21) is flush with the side of the bottom plate (12) away from the distribution component (4).

8. The liquid collecting and redistributing device according to claim 1, characterized in that: A fixing ring (3) is provided on the outer wall of the liquid collecting tank (1) near the liquid inlet (13), and the fixing ring (3) is fixedly connected to the inside of the tower. A notch (15) is provided at the liquid inlet (13) of the liquid collecting tank (1), and the bottom of the notch (15) is flush with the fixing ring (3).

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