Novel gas drying tower
By using a layered drying layer with different pore sizes and a foldable screen design, the problem of adsorption material saturation in existing gas drying towers is solved, achieving efficient adsorption of water molecules with different moisture contents and sizes, extending equipment life and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-27
AI Technical Summary
When processing gases with different water contents, the adsorption material in existing gas drying towers tends to reach saturation or become excessive in advance, resulting in a shortened service life of the equipment and increased purchase costs. At the same time, it is difficult to effectively remove tiny water molecules, and the drying effect is not ideal.
The system employs a layered arrangement of a silica gel drying layer and three molecular sieve drying layers with progressively smaller pore sizes, arranged according to the order of water molecule size from largest to smallest. A foldable screen is also installed at the air inlet for easy disassembly and cleaning.
This broadens the applicable range of gas drying towers, avoids premature saturation or excess of adsorbent materials, extends equipment service life, reduces maintenance costs, and improves drying efficiency and structural strength.
Smart Images
Figure CN224040499U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of carbon dioxide drying, and particularly relates to a novel gas drying tower. BACKGROUND
[0002] In today's era of rapid industrial development, carbon dioxide, as a reusable resource, has shown wide application value in many fields such as chemical industry, food industry, mechanical processing, and oil exploitation. Especially in the food industry, carbon dioxide has become one of the indispensable items, mainly used in carbonated beverages, beer production, tobacco puffing, and food preservation. However, in order to ensure food safety, food-grade carbon dioxide must be subjected to strict purification and drying treatment before being applied to the food industry.
[0003] Therefore, in the production process of carbon dioxide, the moisture content is a crucial indicator. In order to effectively remove the moisture in the gas, the humid carbon dioxide is introduced into the gas drying tower, and the adsorbent material and the filter material are used to remove the moisture therein, so as to realize the drying treatment of carbon dioxide.
[0004] However, the existing gas drying tower has certain limitations in application, especially when dealing with gases with different water contents, the adsorbent material is easy to reach saturation or surplus, which not only wastes the space in the tower, but also shortens the service life of the equipment, thereby increasing the purchase cost and regeneration cost. In addition, when the size of the water molecules is smaller than the pore size of the adsorbent material, the conventional drying tower often has difficulty in effectively removing these tiny water molecules, resulting in unsatisfactory drying effect. CONTENT OF THE INVENTION
[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art, and to provide a novel gas drying tower which improves the drying efficiency and applicability by optimizing the filling sequence and ratio of the adsorbent material.
[0006] The purpose of the present disclosure is achieved by the following technical solutions:
[0007] A novel gas drying tower, comprising:
[0008] A tower body, a drying cavity is formed in the tower body, an air outlet is formed at the top of the tower body, an air inlet and a material inlet are formed at the bottom of the tower body, the material inlet, the air outlet and the air inlet are in communication with the drying cavity, and a screen is arranged at the air inlet;
[0009] The silica gel drying layer, the first molecular sieve drying layer, the second molecular sieve drying layer and the third molecular sieve drying layer are sequentially arranged in the vertical direction in the drying cavity, the silica gel drying layer is located below the first molecular sieve drying layer, and the pore diameters of the first molecular sieve drying layer, the second molecular sieve drying layer and the third molecular sieve drying layer decrease sequentially.
[0010] In one of the embodiments, the silica gel drying layer is a silica gel particle layer structure.
[0011] In one of the embodiments, the pore diameter of the silica gel particles in the silica gel particle layer is greater than the pore diameter of the first molecular sieve drying layer.
[0012] In one of the embodiments, the pore diameter of the first molecular sieve drying layer ranges from 0.55nm to 0.46nm.
[0013] In one of the embodiments, the pore diameter of the second molecular sieve drying layer ranges from 0.45nm to 0.36nm.
[0014] In one of the embodiments, the pore diameter of the third molecular sieve drying layer ranges from 0.35nm to 0.25nm.
[0015] In one of the embodiments, a gas distribution plate is fixedly installed at the bottom of the drying cavity, and the silica gel drying layer is located above the gas distribution plate.
[0016] In one of the embodiments, a discharge port is arranged at the bottom of the tower body, and the discharge port is located on the inner wall of the tower body above the gas distribution plate.
[0017] Compared with the prior art, the present disclosure has at least the following advantages:
[0018] 1. The new gas drying tower is suitable for gases with different water contents or containing different sizes of water molecules by layering the silica gel drying layer and the first molecular sieve drying layer, the second molecular sieve drying layer and the third molecular sieve drying layer with decreasing pore diameters, thereby widening the application range of the new gas drying tower.
[0019] 2. The silica gel drying layer and the first molecular sieve drying layer, the second molecular sieve drying layer and the third molecular sieve drying layer in the new gas drying tower are layered and filled in the airflow direction, and are strictly arranged in the order of the size of the adsorbed water molecules from large to small, so as to ensure efficient adsorption of water molecules of different sizes. At the same time, the layered and sequenced filling method avoids premature saturation or excess of the adsorbent material, prolongs the service life of the new gas drying tower, and reduces the maintenance cost of the equipment.
[0020] 3. The novel gas drying tower incorporates a foldable screen at the air inlet, with adsorbent material pressing the screen against the bottom of the drying chamber, facilitating screen disassembly and cleaning. When the adsorbent material needs replacement, the outlet can be used as an outlet for the adsorbent material after disassembling the pipe connected to the air inlet and the screen, thus simplifying the tower structure and improving its strength. Furthermore, the screen acts as a buffer for the gas at the inlet. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the structure of a novel gas drying tower.
[0023] Figure 2 for Figure 1 A cross-sectional view of the novel gas drying tower shown;
[0024] Figure 3 for Figure 2 A partially enlarged view of the sectional view shown. Detailed Implementation
[0025] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.
[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0028] In order to better understand the technical solutions and beneficial effects of the disclosure, the disclosure will be further described in detail below in combination with specific embodiments:
[0029] Please refer to Figures 1 to 3 The novel gas drying tower 10 of the embodiment of the present application comprises a support 100 and a tower body 200, and the tower body 200 is fixedly connected with the support 100 through welding. A drying cavity 201 is formed in the tower body 200, and an air outlet 202 and a feeding inlet 204 are formed at the top of the tower body 200, and an air inlet 203 is formed at the bottom of the tower body 200; the feeding inlet 204, the air outlet 202 and the air inlet 203 are all in communication with the drying cavity 201, and the air inlet 203 is provided with a screen 2031. A silica gel drying layer 210, a first molecular sieve drying layer 221, a second molecular sieve drying layer 222 and a third molecular sieve drying layer 223 are sequentially arranged in the drying cavity 201 in the vertical direction, and the silica gel drying layer 210 is located below the first molecular sieve drying layer 221; the screen hole diameters of the first molecular sieve drying layer 221, the second molecular sieve drying layer 222 and the third molecular sieve drying layer 223 are sequentially reduced.
[0030] In the embodiment, the novel gas drying tower 10 is provided with the silica gel drying layer 210 and the first molecular sieve drying layer 221, the second molecular sieve drying layer 222 and the third molecular sieve drying layer 223 with the screen hole diameters sequentially reduced, which is suitable for gases with different water contents or containing different sizes of water molecules, and widens the adaptation range of the novel gas drying tower 10. Further, the silica gel drying layer 210 and the first molecular sieve drying layer 221, the second molecular sieve drying layer 222 and the third molecular sieve drying layer 223 in the novel gas drying tower 10 are sequentially filled in layers along the airflow direction, and are strictly arranged according to the order of the sizes of the water molecules that can be adsorbed from large to small, so as to ensure that different sizes of water molecules can be efficiently adsorbed. At the same time, the filling method of layering and sequencing avoids the premature saturation or excess of the adsorption material, prolongs the service life of the novel gas drying tower 10, and reduces the maintenance cost of the equipment.
[0031] It should be noted that the screen 2031 of the air inlet 203 is a foldable screen 2031, which is pressed on the bottom of the drying cavity by the adsorbent material, facilitating disassembly and cleaning. When it is necessary to replace the adsorbent material in the new gas drying tower 10, after the pipeline and the screen 2031 connected with the air inlet 203 are disassembled, the air outlet 2031 can be used as the outlet of the adsorbent material, thereby simplifying the structure of the tower body 200 and improving the structural strength. In addition, the screen 2031 plays a buffering role on the gas at the air inlet 203.
[0032] Specifically, the humid gas is introduced into the drying cavity 201 through the air inlet 203 and flows from bottom to top. In this process, the humid gas first passes through the silica gel drying layer 210 to adsorb the larger water molecules in the humid gas. Subsequently, the gas enters the molecular sieve drying layer and undergoes a step-by-step adsorption process through the first molecular sieve drying layer 221, the second molecular sieve drying layer 222, and the third molecular sieve drying layer 223, further removing smaller water molecules, and finally the dried carbon dioxide gas is discharged from the air outlet 202.
[0033] As shown in Figure 2 and Figure 3 , in one embodiment, the silica gel drying layer 210 is a silica gel particle layer structure. It can be understood that silica gel is a porous material with a wide range of pore sizes that can effectively adsorb larger water molecules, while molecular sieve has smaller pore sizes and is specifically designed to capture tiny water molecules. By sequentially filling both, a complementary adsorption system is formed, and as the gas passes through each layer, the water content gradually decreases, improving drying efficiency.
[0034] As shown in Figure 2 and Figure 3 , in one embodiment, the pore size of the silica gel particles of the silica gel particle layer is larger than the pore size of the first molecular sieve drying layer 221. It can be understood that the pore size of the silica gel particles is larger than that of the molecular sieve drying layer, avoiding overlapping functions with the molecular sieve drying layer, causing waste of space in the drying cavity 201, and improving the space utilization of the new gas drying tower 10. In addition, the reasonable matching of silica gel particles and molecular sieve ensures the maximization of the adsorption efficiency of each layer, further enhancing the overall performance of the new gas drying tower 10.
[0035] It should be noted that the adsorption capacity of silica gel is closely related to its pore size characteristics: large-pore silica gel has strong adsorption performance for larger water molecules, while small-pore silica gel tends to adsorb smaller water molecules. Therefore, in actual use, the appropriate size of silica gel, the filling amount of silica gel, and the proportion of the molecular sieve drying layer can be selected according to the size of the main distribution of water molecules in the humid carbon dioxide, to achieve the best drying effect.
[0036] As shown in Figure 2As shown, in one embodiment, the pore size of the first molecular sieve drying layer 221 ranges from 0.55 nm to 0.46 nm.
[0037] like Figure 2 As shown, in one embodiment, the pore size of the second molecular sieve drying layer 222 ranges from 0.45 nm to 0.36 nm.
[0038] like Figure 2 As shown, in one embodiment, the pore size of the third molecular sieve drying layer 223 ranges from 0.35 nm to 0.25 nm.
[0039] Specifically, in this embodiment, the pore size of the first molecular sieve drying layer 221 is 0.5 nm, which can adsorb water molecules smaller than 0.5 nm; the pore size of the second molecular sieve drying layer 222 is 0.4 nm, which adsorbs water molecules smaller than 0.4 nm; and the pore size of the third molecular sieve drying layer 223 is 0.3 nm, which targets water molecules smaller than 0.3 nm. It can be understood that, in the airflow direction, the first molecular sieve drying layer 221, the second molecular sieve drying layer 222, and the third molecular sieve drying layer 223 are arranged sequentially according to the pore size from largest to smallest, forming a complementary adsorption system. As the gas passes through each layer, the moisture content gradually decreases, ensuring the gas drying effect.
[0040] It should be noted that in actual use, efficient drying can be achieved by adjusting the ratio of each molecular sieve drying layer. Specifically, the filling amount and ratio of silica gel particles in each molecular sieve drying layer and silica gel drying layer 210 can be flexibly adjusted according to the water molecule content and size in the gas being dried. If the water molecules in the gas are mainly distributed in large molecular sizes (0.5-50nm), the ratio and filling amount of silica gel particles can be increased. If the water molecules in the gas are mainly distributed in small molecular sizes (<0.5nm), the filling amount of silica gel particles can be reduced accordingly, while the specific gravity and filling amount of the corresponding molecular sieve can be increased.
[0041] Furthermore, by precisely controlling the filling ratio and layer sequence of each molecular sieve drying layer, the problems of premature saturation of each molecular sieve drying layer or excess adsorbent in a certain layer are avoided, saving space inside the tower and ensuring the long-term stable operation of the novel gas drying tower 10.
[0042] like Figure 2 and Figure 3As shown, in one embodiment, the gas distribution plate 300 is fixedly installed at the bottom of the drying cavity 201 by welding, and the silica gel drying layer 210 is located above the gas distribution plate 300. It can be understood that the gas distribution plate 300 can uniformly distribute the gas entering the drying cavity 201 to the entire area of the gas distribution plate 300, ensure that the gas flows evenly into the subsequent drying area, improve the drying efficiency, avoid the local saturation of the adsorbent affecting the drying effect of the new gas drying tower 10, and prolong the service life of the new gas drying tower 10. At the same time, the gas distribution plate 300 supports and buffers the adsorbent above, prevents the adsorbent from moving due to airflow impact, ensures the stability of the drying layer structure, and thus prolongs the service life of the adsorbent.
[0043] It should be noted that in the present embodiment, the gas distribution plate 300 is fixedly installed at the bottom of the drying cavity 201 instead of the foldable screen 2031 of the gas inlet 203. Therefore, there is no need to install the screen 2031 during actual use.
[0044] As shown in FIGS. Figure 2 and Figure 3 As shown, in one embodiment, the tower body is provided with a discharge port 205 at the bottom, and the discharge port 205 is located on the inner wall of the tower body 200 above the gas distribution plate 300. Specifically, in the present embodiment, the adsorbent in the new gas drying tower 10 is first sequentially filled into the tower from the top inlet 204. When the adsorbent reaches the predetermined service period, the operator opens the bottom discharge port 205 to discharge the old adsorbent outside the tower, and then fills the new material after emptying, which simplifies the operation process and improves the replacement efficiency.
[0045] Compared with the prior art, the present disclosure has at least the following advantages:
[0046] 1. The new gas drying tower is provided with a silica gel drying layer, a first molecular sieve drying layer, a second molecular sieve drying layer, and a third molecular sieve drying layer with decreasing screen hole diameters in layers, which is suitable for gases with different water contents or containing different size water molecules, and improves the adaptability range of the new gas drying tower.
[0047] 2. The silica gel drying layer, the first molecular sieve drying layer, the second molecular sieve drying layer, and the third molecular sieve drying layer in the new gas drying tower are sequentially filled in layers along the airflow direction, and are strictly arranged in order according to the size of the adsorbed water molecules from large to small, which ensures efficient adsorption of water molecules of different sizes. At the same time, the layered and sequential filling method avoids premature saturation or excess of the adsorbent, prolongs the service life of the new gas drying tower, and reduces the maintenance cost of the equipment.
[0048] 3. The novel gas drying tower is provided with a foldable screen mesh at the gas inlet, which is convenient to disassemble and clean. When the adsorbent material in the novel gas drying tower needs to be replaced, the pipeline and the screen mesh connected with the gas inlet are disassembled, and the air outlet can be used as the outlet of the adsorbent material, thereby simplifying the tower structure and improving the structural strength. In addition, the screen mesh has a buffering effect on the gas at the gas inlet.
[0049] The above-described embodiments only express several implementation manners of the present disclosure, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the disclosed patent. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present disclosure, several modifications and improvements can be made, which all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.
Claims
1. A novel gas drying tower, characterized in that, include: Support; The tower body is fixedly connected to the support. A drying chamber is opened inside the tower body. An air outlet and a material inlet are opened at the top of the tower body. An air inlet is opened at the bottom of the tower body. The material inlet, the air outlet and the air inlet are all connected to the drying chamber. A screen is provided at the air inlet. The drying chamber is provided with a silica gel drying layer, a first molecular sieve drying layer, a second molecular sieve drying layer and a third molecular sieve drying layer in sequence along the vertical direction. The silica gel drying layer is located below the first molecular sieve drying layer. The pore sizes of the first molecular sieve drying layer, the second molecular sieve drying layer and the third molecular sieve drying layer decrease in sequence.
2. The novel gas drying tower according to claim 1, characterized in that, The silica gel drying layer has a silica gel particle layer structure.
3. The novel gas drying tower according to claim 2, characterized in that, The pore size of the silica particles in the silica particle layer is larger than the pore size of the sieve pores in the first molecular sieve drying layer.
4. The novel gas drying tower according to claim 1, characterized in that, The pore size of the first molecular sieve drying layer ranges from 0.55 nm to 0.46 nm.
5. The novel gas drying tower according to claim 1, characterized in that, The pore size of the second molecular sieve drying layer ranges from 0.45 nm to 0.36 nm.
6. The novel gas drying tower according to claim 1, characterized in that, The pore size of the third molecular sieve drying layer ranges from 0.35 nm to 0.25 nm.
7. The novel gas drying tower according to claim 1, characterized in that, A gas distribution plate is fixedly installed at the bottom of the drying chamber, and the silica gel drying layer is located above the gas distribution plate.
8. The novel gas drying tower according to claim 7, characterized in that, The tower body has an inlet at the top and an outlet at the bottom, with the outlet located on the inner wall of the tower body above the gas distribution plate.