Low-temperature air separation device
By using sponges to collect liquid and pre-cooled storage air in low-temperature air separation devices, the frequent replacement of adsorbent devices and lack of pre-cooling in traditional devices is solved, and more efficient production and shorter production cycles are achieved.
Patent Information
- Application Number
- CN202421221311.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Traditional air separation devices require frequent manual replacement of adsorption devices, and lack effective pre-cooling measures, resulting in large energy consumption and long production time.
A low-temperature air separation device is designed, using a sponge to collect adsorbed liquid, reduce the frequency of replacement, and realize pre-cooling of air through pre-cooling chambers and storage chambers.
It significantly reduces the frequency of manual replacement of adsorbent devices, reduces labor costs and production interruptions, improves production efficiency, and shortens air separation time.
Smart Images
Figure CN222567232U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas separation, in particular to a low-temperature air separation device. Background Art
[0002] The most commonly used method for air separation is deep freezing, which can produce oxygen, nitrogen and rare gases. The purity of the resulting gas products can reach 98.0% to 99.9%. In addition, molecular sieve adsorption is also used to separate air, which is used to produce oxygen-enriched air containing 70% to 80% oxygen. In recent years, some countries have also developed solid membrane air separation technology. Oxygen, nitrogen, argon, helium and other rare gases have a wide range of uses, so air separation devices are widely used in metallurgy, chemical industry, petroleum, machinery, mining, food, military and other industrial sectors.
[0003] Traditional air separation devices often require frequent manual replacement of adsorption devices when dealing with liquids adsorbed in filtered air. This not only increases the complexity and cost of manual operations, but also leads to interruptions in the production process, affecting overall work efficiency. Workers need to spend a lot of time and energy to carry out this tedious task, which seriously restricts the continuity of production. Moreover, in the air treatment process, the existing technology does not pay enough attention to the pre-cooling of air. There are no effective pre-cooling measures, resulting in a lot of time and energy required to cool and compress the air in the subsequent cooling and compression links. This undoubtedly increases energy consumption, and also prolongs the time cycle of the entire air separation, which cannot meet the needs of efficient production.
[0004] Therefore, it is necessary to provide a low-temperature air separation device to solve the above technical problems. Utility Model Content
[0005] The utility model provides a low-temperature air separation device, which solves the problem that the adsorption device needs to be frequently replaced manually and there is no effective pre-cooling measure, resulting in a large amount of time and energy consumption to achieve air cooling and compression.
[0006] In order to solve the above technical problems, the low-temperature air separation device provided by the utility model includes: a filter tank, a filter plate is installed inside the filter tank, an air inlet is opened on the left side of the filter tank, an inlet pipe is fixedly connected to the left side of the filter tank, a filter screen is installed on the left side of the inlet pipe, a tube one is fixedly connected to the right side of the filter tank, an adsorption bin is arranged on the tube one, an adsorption layer is arranged inside the adsorption bin, a sponge is arranged inside the adsorption bin, a water bin is fixedly connected to the bottom of the adsorption bin, and a drain pipe is fixedly connected to the bottom of the water bin.
[0007] Preferably, the outer surface of the other end of the tube is fixedly connected to a precooling bin, the other end of the tube is fixedly connected to a precooling tube, a plurality of fins are fixedly connected to the surface of the precooling tube, an exchange liquid inlet is provided at the top of the precooling bin, and an exchange liquid outlet is provided at the top of the precooling bin.
[0008] Preferably, a second tube is fixedly connected to the right side of the pre-cooling bin, and a cold storage box is fixedly connected to the other end of the second tube.
[0009] Preferably, a tube three is fixedly connected to the back of the cold storage box, and a cold pressure tank is fixedly connected to the other end of the tube three.
[0010] Preferably, a tube four is fixedly connected to the left side of the cold press tank, and a distillation tower is fixedly connected to the other end of the tube four.
[0011] Preferably, a plurality of collecting pipes are fixedly connected to the left side of the distillation tower, and a collecting box is fixedly connected to the other end of the collecting pipe.
[0012] Compared with the related art, the low-temperature air separation device provided by the utility model has the following beneficial effects:
[0013] The device collects the liquid adsorbed in the discharged air through a sponge, greatly reducing the frequency of manual replacement of the adsorption device. This not only reduces labor costs, but also avoids production interruptions caused by frequent replacement, allowing the production process to proceed continuously and stably, creating higher economic benefits for the company, while also reducing the burden on staff. Pre-cooling and storing air can significantly reduce the time required for subsequent cold pressing. This means that the air separation process can be completed faster, shortening the production cycle, meeting the market's demand for rapid production and delivery, and enhancing the company's competitiveness in the market. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a cryogenic air separation device provided by the utility model;
[0015] Figure 2 for Figure 1 A schematic front cross-sectional view of a cryogenic air separation unit is shown;
[0016] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;
[0017] Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown.
[0018] Numbers in the figure: 1. filter tank, 2. filter plate, 3. air inlet, 4. inlet pipe, 5. filter screen, 6. tube one, 7. adsorption chamber, 8. adsorption layer, 9. sponge, 10. water tank, 11. drain pipe, 12. precooling chamber, 13. precooling tube, 14. fin, 15. exchange liquid inlet, 16. exchange liquid outlet, 17. tube two, 18. cold storage box, 19. tube three, 20. cold press tank, 21. tube four, 22. distillation tower, 23. collecting tube, 24. collecting box. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0020] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a cryogenic air separation device provided by the utility model; Figure 2 for Figure 1 A schematic front cross-sectional view of a cryogenic air separation unit is shown; Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown; Figure 4 for Figure 2 The enlarged schematic diagram of part B is shown. The low-temperature air separation device includes: a filter tank 1, a filter plate 2 is installed inside the filter tank 1, an air inlet 3 is opened on the left side of the filter tank 1, an inlet pipe 4 is fixedly connected to the left side of the filter tank 1, a filter screen 5 is installed on the left side of the inlet pipe 4, a pipe 6 is fixedly connected to the right side of the filter tank 1, an adsorption bin 7 is arranged on the pipe 6, an adsorption layer 8 is arranged inside the adsorption bin 7, a sponge 9 is arranged inside the adsorption bin 7, a water bin 10 is fixedly connected to the bottom of the adsorption bin 7, and a drain pipe 11 is fixedly connected to the bottom of the water bin 10. The device collects and discharges the liquid adsorbed in the air through the sponge 9, which greatly reduces the frequency of manual replacement of the adsorption device. This not only reduces the labor cost, but also avoids the production interruption caused by frequent replacement, so that the production process can be carried out continuously and stably, creating higher economic benefits for the enterprise, and also reducing the burden on the staff.
[0021] The outer surface of the other end of the tube 6 is fixedly connected with a precooling bin 12, and the other end of the tube 6 is fixedly connected with a precooling tube 13. A plurality of fins 14 are fixedly connected to the surface of the precooling tube 13. An exchange liquid inlet 15 is provided at the top of the precooling bin 12, and an exchange liquid outlet 16 is provided at the top of the precooling bin 12. The air that has been filtered and adsorbed with moisture enters the precooling tube 13. There is flowing exchange liquid inside the precooling bin 12. The exchange liquid has a low temperature. Heat is exchanged with the air inside the precooling tube 13 through the fins 14 to reduce its temperature, thereby achieving a precooling effect and precooling the air.
[0022] The right side of the pre-cooling chamber 12 is fixedly connected with a pipe 2 17, and the other end of the pipe 2 17 is fixedly connected with a cold storage box 18. When the cold pressure tank 20 is working, a certain amount of cold air can be stored in the cold storage box 18 in advance, so that cold air can be quickly introduced for cold compression after the cold pressure tank 20 completes its work.
[0023] A pipe three 19 is fixedly connected to the back of the cold storage box 18, and a cold pressure tank 20 is fixedly connected to the other end of the pipe three 19. The cold pressure tank 20 can continue to cool and compress the cold air to make it liquid.
[0024] The left side of the cold press tank 20 is fixedly connected to a pipe 21, and the other end of the pipe 21 is fixedly connected to a distillation tower 22. The cooled liquid enters the distillation tower 22, and the air is separated by distillation in the distillation tower 22.
[0025] A plurality of collecting pipes 23 are fixedly connected to the left side of the distillation tower 22, and a collecting box 24 is fixedly connected to the other end of the collecting pipe 23. The gases after distillation enter the corresponding collecting boxes 24 respectively, and air pumps are provided between all air separation components to assist gas transportation.
[0026] The working principle of the low-temperature air separation device provided by the utility model is as follows:
[0027] Air is sucked into the filter tank 1 through an air pump. Larger foreign matter will be blocked by the filter screen 5 first, and smaller foreign matter will be filtered out by the filter plate 2 inside the filter tank 1, and then enter the adsorption bin 7 through the tube 1 6. An adsorption layer 8 composed of molecular sieves is arranged inside the adsorption bin 7. The adsorption layer 8 will adsorb the moisture in the control. When it reaches a certain level, the moisture will enter the water tank 10 due to gravity through the porous sponge 9, and then be discharged through the drain pipe 11.
[0028] Compared with the related art, the low-temperature air separation device provided by the utility model has the following beneficial effects:
[0029] The device collects the liquid adsorbed in the discharged air through the sponge 9, which greatly reduces the frequency of manual replacement of the adsorption device. This not only reduces labor costs, but also avoids production interruptions caused by frequent replacement, allowing the production process to proceed continuously and stably, creating higher economic benefits for the enterprise, while also reducing the burden on the staff, and pre-cooling and storing the air can significantly reduce the time required for the subsequent cold pressing link. This means that the air separation process can be completed faster, shortening the production cycle, meeting the market's demand for rapid production and delivery, and enhancing the company's competitiveness in the market.
[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A cryogenic air separation unit, characterized in that: include: A filter tank, wherein a filter plate is installed inside the filter tank, an air inlet is opened on the left side of the filter tank, an inlet pipe is fixedly connected to the left side of the filter tank, a filter screen is installed on the left side of the inlet pipe, a tube one is fixedly connected to the right side of the filter tank, an adsorption bin is arranged on the tube one, an adsorption layer is arranged inside the adsorption bin, a sponge is arranged inside the adsorption bin, a water bin is fixedly connected to the bottom of the adsorption bin, and a drain pipe is fixedly connected to the bottom of the water bin.
2. The cryogenic air separation device according to claim 1, characterized in that: The outer surface of the other end of the tube is fixedly connected with a precooling bin, the other end of the tube is fixedly connected with a precooling tube, a plurality of fins are fixedly connected to the surface of the precooling tube, an exchange liquid inlet is provided at the top of the precooling bin, and an exchange liquid outlet is provided at the top of the precooling bin.
3. The cryogenic air separation device according to claim 2, characterized in that: The right side of the pre-cooling bin is fixedly connected with a pipe 2, and the other end of the pipe 2 is fixedly connected with a cold storage box.
4. The cryogenic air separation device according to claim 3, characterized in that: A pipe three is fixedly connected to the back of the cold storage box, and a cold pressure tank is fixedly connected to the other end of the pipe three.
5. The cryogenic air separation device according to claim 4, characterized in that: The left side of the cold press tank is fixedly connected with a pipe four, and the other end of the pipe four is fixedly connected with a distillation tower.
6. The cryogenic air separation device according to claim 5, characterized in that: A plurality of collecting pipes are fixedly connected to the left side of the distillation tower, and a collecting box is fixedly connected to the other end of the collecting pipe.