Filling device and system thereof

Abstract

The invention relates to a filler device and a system thereof, comprising: a filler tower body having a gas outlet at the tower top and a gas inlet at the tower bottom; the random packing is filled at the upper end of the packed tower body and is positioned below the gas outlet; the structured packing is filled at the lower end of the packed tower body and is positioned above the gas inlet; wherein the random packing comprises a first group of random packing and a second group of random packing, the first group of random packing and the second group of random packing are the same in structure, and the first group of random packing and the second group of random packing are different in sequence. According to the packing device adopted by the invention, random packing is adopted at the upper part, regular packing is adopted at the lower part, and the two packing are combined, so that a solution flows downwards along a gap after entering the upper part of the packed tower body, carbonate is not easy to crystallize in the packed tower body, and the regular packing in the packed tower body also ensures the separation effect; and meanwhile, the air resistance is smaller, and the pressure loss of the packed tower body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of packing, and in particular to a packing device and a system thereof. Background Art

[0002] Packing tower is a common equipment in the chemical industry. The packing inside it is the main factor affecting the separation efficiency of the packed tower. At present, the packed tower generally adopts a unified packing method, that is, structured packing or random packing. Structured packing is generally arranged and stacked in the tower according to different geometric shapes or other requirements. The packings are closely connected to form an orderly whole; random packing is mostly a disordered stacking of a large number of small-volume packings with a cylindrical shape. The two types of packing have different characteristics. Although they both have the function of separation, random packing has lower resistance and smaller pressure drop, and is easier to load. The structured packing has a lower specific surface area, can handle a larger workload, and has a more uniform gas-liquid distribution. At the same time, the two have different disadvantages. Since the random packing is a disordered stacking of a large number of small-volume packings, it is inherently random and has a poor separation effect; while the structured packing has a larger overall volume, and the process of loading it has a greater difficulty in operation, which affects the separation effect.

[0003] In the process of chemical production, carbonates and other substances are likely to exist in the solution. When a uniform structured packing method is used, carbonate crystals are very likely to clog the packing, resulting in high pressure loss of the packing tower. If a single random packing method is used, it is easy to agglomerate, which has a great impact on the separation effect. Therefore, how to choose a more reasonable packing method has become an urgent problem to be solved in this field. Summary of the invention

[0004] The main purpose of the present invention is to overcome the defects of the existing packing device and its system, and to provide a new packing device and its system, which can at least solve the technical problems that in the process of chemical production, carbonates and other substances are easily present in the solution, and when a unified regular packing method is adopted, carbonate crystals are very likely to be blocked in the packing, thereby causing high pressure loss of the packing tower; if a single random packing method is adopted, it is easy to agglomerate, which has a great impact on the separation effect.

[0005] In one aspect, a packing device is provided, comprising:

[0006] A packed tower body having a gas outlet at the top and a gas inlet at the bottom;

[0007] Random packing, filled at the upper end of the packing tower body and located below the gas outlet;

[0008] Structured packing, filled at the lower end of the packing tower body and located above the gas inlet;

[0009] The random packing includes a first group of random packing and a second random packing, wherein the first group of random packing and the second random packing have the same structure, and the first group of random packing and the second random packing have different arrangements.

[0010] In an optional embodiment, the first group of random packings are arranged in an orderly manner, and the second group of random packings are arranged in a disordered manner.

[0011] In an optional embodiment, the first group of random packing and the second random packing are arranged at a preset distance in the packed tower body, and the preset distance decreases sequentially from the bottom to the top of the packed tower body.

[0012] In an optional embodiment, the random packing includes a random packing body and a connecting piece;

[0013] The random packing bodies are connected by the connecting piece.

[0014] In an optional embodiment, the connecting member includes a first limiting member, a connecting rod and a second limiting member;

[0015] A connecting hole is provided on the random packing body, and two adjacent random packing bodies are connected through the connecting hole;

[0016] The first limiting member is located at the first end of the connecting rod, and the second limiting member is located at the second end of the connecting rod.

[0017] In an optional embodiment, the first limiting member includes a first limiting body and a second limiting body which are nested in sequence from the inside to the outside;

[0018] The diameter of the first limiting body is smaller than the diameter of the second limiting body.

[0019] In an optional embodiment, the filler body includes a plurality of regular protrusions, the plurality of regular protrusions are evenly arranged, and the angles of the plurality of protrusions are the same.

[0020] In an optional embodiment, the number of the regular protrusions is 3-8.

[0021] In an optional embodiment, the packed tower body includes a first section, a second section and a third section which are integrally connected;

[0022] The diameters of the first section, the second section and the third section increase in sequence;

[0023] The random packing is filled in the first section of the packed tower body;

[0024] The structured packing is filled in the third section of the packed tower body.

[0025] On the other hand, a packing system is provided, the packing system comprising any of the packing devices described above.

[0026] The packing device used in the embodiment of the present invention has at least the following beneficial effects:

[0027] The packing device used in the embodiment of the present invention is based on using random packing at the top and regular packing at the bottom. By combining the above two types of packings, the solution flows downward along the gap after entering the upper part of the packing tower body. The carbonate is not easy to crystallize in the packing tower body. The regular packing in the packing tower body ensures its separation effect and has smaller gas resistance, thereby improving the pressure loss of the packing tower body.

[0028] In summary, the special packing device of the present invention allows the solution to flow down along the gap after entering the upper part of the packing tower body, and carbonate is not easy to crystallize in the packing tower body. The regular packing in the packing tower body ensures its separation effect, and at the same time has a smaller gas resistance, which improves the pressure loss of the packing tower body. It has many advantages and practical value mentioned above, and there is no similar design published or used in similar packing devices, which is indeed innovative. It has great improvements in both packing devices and functions, great progress in technology, and produces good and practical effects. It has multiple functions that are enhanced compared to existing packing devices, so it is more suitable for practical use and has wide industrial utilization value. It is truly a novel, progressive and practical new design.

[0029] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0030] The specific packing device and its structure of the present invention are given in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a packing device provided in an embodiment of the present invention.

[0032] Figure 2 A schematic structural diagram of random packing bodies arranged in an ordered sequence in a packing device provided in an embodiment of the present invention.

[0033] Figure 3 A schematic structural diagram of a random packing body in a packing device provided in an embodiment of the present invention.

[0034] Reference numerals:

[0035] 1-packing tower body, 2-random packing, 101-gas outlet, 102-gas outlet, 103-solution outlet, 3-structured packing, 21-random packing body, 22-first limiter, 23-connecting rod, 24-second limiter. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the packing device and its system proposed according to the present invention and its specific implementation methods in combination with the accompanying drawings and preferred embodiments.

[0037] See also Figures 1 to 3 The packing device of the preferred embodiment of the present invention comprises: a packing tower body 1, a random packing 2 and a structured packing 3. The packing tower body 1 has a gas outlet 101 at the top and a gas inlet 102 at the bottom; the random packing 2 is filled at the upper end of the packing tower body 1 and is located below the gas outlet 101; the structured packing 3 is filled at the lower end of the packing tower body 1 and is located above the gas inlet 102; the random packing 2 comprises a first group of random packing and a second random packing 2, wherein the first group of random packing and the second random packing 2 have the same structure, and the first group of random packing and the second random packing 2 are arranged differently.

[0038] The packing device used in the embodiment of the present invention is based on the use of random packing 2 at the top and regular packing 3 at the bottom. By combining the above two types of packings, the solution flows downward along the gap after entering the upper part of the packing tower body 1. The carbonate is not easy to crystallize in the packing tower body 1. The regular packing 3 in the packing tower body 1 ensures its separation effect and has smaller gas resistance, thereby improving the pressure loss of the packing tower body 1.

[0039] In an optional embodiment, the first group of random packings are arranged in an orderly manner, and the second random packings 2 are arranged in a disordered manner.

[0040] In the embodiment of the present invention, the first group of random packings are arranged in an orderly manner, and the second random packings 2 are arranged in a disordered manner. After the solution enters the upper part of the packing tower body 1, it can flow downward along the gap. The carbonate is not easy to crystallize in the packing tower body 1, and the regular packings 3 in the packing tower body 1 ensure its separation effect.

[0041] See also Figure 1 The packing device provided in the embodiment of the present invention also has a solution outlet 103 at the bottom. The gas enters the packing tower body 1 through the gas inlet 102, reacts with the structured packing 3 and the random packing 2 in sequence, and the gas flows out from the gas outlet 101 at the top of the packing tower body 1, and the liquid is discharged from the solution outlet 103 at the bottom of the packing tower body 1.

[0042] In an optional embodiment, the first group of random packing and the second random packing 2 are arranged at a preset distance in the packing tower body 1, and the preset distance decreases in sequence from the bottom to the top of the packing tower body 1.

[0043] When the solution first enters the packed tower body 1, the temperature is relatively high. At this time, the first group of random packing and the second random packing 2 can be arranged with a larger preset distance in the packed tower body 1 to increase the contact area between the liquid and the packing. The preset distance between them increases toward the bottom of the tower to avoid carbonate crystallization in the packed tower body 1, thereby ensuring the separation effect.

[0044] In an optional embodiment, the random packing 2 includes a random packing body 21 and a connecting piece; each random packing body 21 is connected by the connecting piece.

[0045] See also Figure 2 and Figure 3 In an optional embodiment, the connecting member includes a first limit member 22, a connecting rod 23 and a second limit member 24; a connecting hole is opened on the random packing body 21, and the connecting hole connects two adjacent random packing bodies 21 through the connecting hole; the first limit member 22 is located at the first end of the connecting rod 23, and the second limit member 24 is located at the second end of the connecting rod 23.

[0046] In an optional embodiment, the first limiting member 22 includes a first limiting body and a second limiting body which are nested in sequence from the inside to the outside; the diameter of the first limiting body is smaller than the diameter of the second limiting body.

[0047] In an optional embodiment, the filler body includes a plurality of regular protrusions, the plurality of regular protrusions are evenly arranged, and the angles of the plurality of protrusions are the same.

[0048] In an optional embodiment, the number of regular protrusions is 3-8.

[0049] In an optional embodiment, the packed tower body 1 includes a first section, a second section and a third section which are integrally connected; wherein the diameters of the first section, the second section and the third section increase in sequence; the random packing 2 is filled in the first section of the packed tower body 1; and the structured packing 3 is filled in the third section of the packed tower body 1.

[0050] On the other hand, a packing system is also provided, characterized in that the packing system comprises any of the above-mentioned packing devices.

[0051] After the packing device of the present invention is applied to the decarbonization device of the circulating gas of XX Group's 4 million tons of coal-to-liquid, the pressure difference in the tower can be reduced from 28 kPa to 12 kPa. When a single packing method is used in the tower, vanadate crystallization will cause the structured packing 3 in the packing tower body 1 of the packing device to be blocked, and the device needs to be shut down for repair every other year. After adopting the packing method combining the random packing 2 and the structured packing 3 in the packing device of the present invention, the device only needs to be shut down for repair once every three years, which greatly improves the production efficiency and reduces the production cost.

[0052] Before the packing method was modified, the crystal salt of the activator was often used to pack the tower body 1 in the 1 million tons coal-to-liquid circulating gas decarbonization device of XXX Group. The combination of random packing 2 and structured packing 3 in the packing device of the present invention reduced the frequency of overhaul from once a year to once every three years, which has the effect of reducing costs and increasing efficiency. In addition, the use of the packing device of the present invention reduced the pressure difference in the tower from 30kPa to 14kPa, which once again proved that the packing device of the present invention can improve the pressure loss of the packing tower body 1.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A packing device, characterized in that: include: A packed tower body having a gas outlet at the top and a gas inlet at the bottom; Random packing, filled at the upper end of the packing tower body and located below the gas outlet; Structured packing, filled at the lower end of the packing tower body and located above the gas inlet; The random packing includes a first group of random packing and a second random packing, wherein the first group of random packing and the second random packing have the same structure, and the first group of random packing and the second random packing have different arrangements.

2. The packing device according to claim 1, characterized in that The first group of random packings is arranged in an orderly manner, and the second group of random packings is arranged in a disordered manner.

3. The packing device according to claim 1, characterized in that: The first group of random packing and the second random packing are arranged at a preset distance in the packing tower body, and the preset distance decreases in sequence from the bottom to the top of the packing tower body.

4. The packing device according to claim 1, characterized in that The random packing comprises a random packing body and a connecting piece; The random packing bodies are connected by the connecting piece.

5. The packing device according to claim 4, characterized in that The connecting member includes a first limiting member, a connecting rod and a second limiting member; A connecting hole is provided on the random packing body, and two adjacent random packing bodies are connected through the connecting hole; The first limiting member is located at the first end of the connecting rod, and the second limiting member is located at the second end of the connecting rod.

6. The packing device according to claim 5, characterized in that The first limiting member includes a first limiting body and a second limiting body which are nested in sequence from the inside to the outside; The diameter of the first limiting body is smaller than the diameter of the second limiting body.

7. The packing device according to any one of claims 4-5, characterized in that: The filler body comprises a plurality of regular protrusions, the plurality of regular protrusions are evenly arranged, and the angles of the plurality of protrusions are the same.

8. The packing device according to any one of claims 7, characterized in that: The number of the regular protrusions is 3-8.

9. The packing device according to any one of claims 7, characterized in that: The packed tower body comprises a first section, a second section and a third section which are integrally connected; The diameters of the first section, the second section and the third section increase in sequence; The random packing is filled in the first section of the packed tower body; The structured packing is filled in the third section of the packed tower body.

10. A packing system, characterized in that: The packing system comprises the packing device according to any one of claims 1-9.

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