CN115900230B - Cryogenic air separation plant - Google Patents
Cryogenic air separation plant Download PDFInfo
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- CN115900230B CN115900230B CN202310186351.5A CN202310186351A CN115900230B CN 115900230 B CN115900230 B CN 115900230B CN 202310186351 A CN202310186351 A CN 202310186351A CN 115900230 B CN115900230 B CN 115900230B
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Abstract
The invention discloses a cryogenic air separation device, which relates to the technical field of high-efficiency cryogenic air separation devices and comprises a main body, wherein a spiral cooling frame is rotatably connected inside the main body, a spiral cooling cavity is formed inside the spiral cooling frame, and a central cylinder is fixed at the bottom of the main body. According to the invention, high-temperature compressed air enters the inside of the central cylinder through the air inlet pipe, and when the high-temperature compressed air enters the inside of the spiral cooling frame through the connecting pipe, the impeller is driven to rotate, so that the impeller drives the spiral cooling frame to rotate in the main body through the connecting pipe, the spiral cooling frame synchronously rotates while cooling along with the high-temperature compressed air entering the inside of the spiral cooling cavity, and meanwhile, the plurality of groups of spray water pipes spray and cool cooling water to the outer side of the spiral cooling frame, so that the rotating spiral cooling frame is uniformly contacted with the cooling water in all directions, the cooling effect of the high-temperature air is effectively improved, and the overall working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of cryogenic air separation plants, in particular to a cryogenic air separation plant.
Background
The cryogenic separation method is also called cryogenic rectification method, and is characterized by that it adopts mechanical method, for example, adopts the processes of throttle expansion or adiabatic expansion, etc. to compress and cool gas, then utilizes the difference of boiling points of different gases to make rectification so as to make the different gases obtain separation. The method is suitable for large-scale gas separation process, such as nitrogen production by air.
The air is firstly removed dust and mechanical impurities by an air filter, then enters an air compressor, is compressed to the required pressure, is then sent to an air cooler, is reduced in air temperature, then enters an air drying purifier to remove water, carbon dioxide, acetylene and other hydrocarbon in the air, the purified air enters a main heat exchanger in an air separation tower, is cooled to the saturation temperature by reflux gas (product nitrogen and waste gas), is sent to the bottom of a rectifying tower, nitrogen is obtained at the top of the rectifying tower, the liquid air is throttled and then sent to a condensing evaporator for evaporation, part of nitrogen sent by the rectifying tower is condensed, part of condensed liquid ammonia is used as reflux liquid of the rectifying tower, and the other part of condensed liquid ammonia is used as liquid ammonia product to exit the air separation tower.
In the prior art, the air cooler often enables high-temperature compressed air to pass through the cooling pipe, and sprays cooling water outside the cooling pipe to cool the high-temperature air, however, the cooling pipe is in a static state, so that the sprayed cooling water cannot uniformly cool the high-temperature air inside the cooling pipe, the cooling effect of the high-temperature air is poor, and the cooling air cannot be better achieved, so that the overall working efficiency is lower.
Disclosure of Invention
Based on the above, the invention aims to provide a cryogenic air separation device, so as to solve the technical problems that in the prior art, the sprayed cooling water cannot uniformly cool the high-temperature air in the cooling pipe due to the static state, so that the cooling effect of the high-temperature air is poor, and the overall low working efficiency caused by the cooling air cannot be better achieved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the deep cooling air separation device comprises a main body, wherein a spiral cooling frame is rotationally connected inside the main body, a spiral cooling cavity is formed inside the spiral cooling frame, and a central cylinder is fixed at the bottom of the main body;
the top end of the inside of the central cylinder is rotationally connected with a connecting pipe fixedly connected with a spiral cooling frame, the bottom of the connecting pipe is fixedly provided with a driving impeller positioned in the inside of the central cylinder, connecting holes are formed in two sides of the bottom of the connecting pipe, the bottom of the central cylinder is provided with an air inlet pipe, and the central position of the top of the spiral cooling frame is provided with an exhaust pipe communicated with a spiral cooling cavity;
the outer side of the exhaust pipe is fixedly provided with a main gear, four corners of the outer side of the main gear are meshed with planetary gears, the tops of four groups of planetary gears are fixedly provided with air suction impellers, a spray water pipe is fixedly arranged above the four groups of air suction impellers in the main body, a water tank communicated with the four groups of spray water pipes is fixedly arranged on the outer side of the top of the main body, one side of the water tank is fixedly provided with a water injection pipe, when the spiral cooling frame rotates, the main gear drives a plurality of groups of planetary gears to rotate, the autorotating planetary gears drive the air suction impellers to rotate, and the air suction impellers suck air from the outside into the main body, further cool down spiral cooling frame and absorb thermal cooling water, and because every group inhales the below that the impeller is located the spray header, and then spray header spun cooling water is when contacting the impeller of inhaling, the impeller of inhaling can also play the effect of diffusion to cooling water, and then further improved the homogeneity when cooling water sprays, the effectual holistic cooling effect that has improved is fixed with the drain box in the main part bottom outside, main part bottom four corners department all is provided with the runner pipe that is linked together with the drain box, and the drain box is linked together through four sets of runner pipes and main part inside, drain box one side is provided with the drain pipe.
Through adopting above-mentioned technical scheme, inside high temperature compressed air gets into the central section of thick bamboo through the intake pipe, high temperature compressed air gets into spiral cooling frame inside through the connecting pipe, drive driving impeller rotates, and then driving impeller drives spiral cooling frame inside the main part through the connecting pipe and rotate, when the high temperature compressed air gets into spiral cooling intracavity portion and cools off, spiral cooling frame rotates in step, meanwhile, multiunit spray pipe carries out spray cooling with the cooling water to spiral cooling frame outside, and then make the more even and all-round uniform contact of cooling water of pivoted spiral cooling frame, the effectual cooling effect that improves high temperature air, holistic work efficiency has been improved.
The invention is further characterized in that the top of the main body is fixedly provided with a first support frame, four corners of the inner side of the first support frame are respectively fixedly provided with a first support rod movably connected with the planetary gear, the top of the main body is fixedly provided with a second support frame, and four corners of the inner side of the second support frame are respectively fixedly provided with a second support rod matched with the spray water pipe.
Through adopting above-mentioned technical scheme, first support frame and first bracing piece play the movable support to planetary gear, and second support frame and second bracing piece play the fixed support effect to the shower pipe.
The invention is further characterized in that an annular sliding rail is fixed on the inner wall of the main body, a rotating ring extending into the annular sliding rail is fixed on one side of the connecting pipe, a connecting rod fixedly connected with the connecting pipe is fixedly arranged on one side, away from the connecting pipe, of the rotating ring, and a sliding groove matched with the rotating ring is formed in the annular sliding rail.
By adopting the technical scheme, the stability of the spiral cooling rack is further achieved, and the spiral cooling rack is better kept stable during rotation.
The invention is further characterized in that the top of the main body is fixedly provided with a fixing frame, four corners of the inner side of the fixing frame are fixedly provided with connecting plates matched with the exhaust pipes, and the exhaust pipes are rotationally connected with a plurality of groups of connecting plates.
Through adopting above-mentioned technical scheme, the mount plays the activity limiting displacement to the blast pipe, avoids the blast pipe to take place the problem of rocking when rotating along with spiral cooling frame.
In summary, the invention has the following advantages:
according to the invention, high-temperature compressed air enters the inside of the central cylinder through the air inlet pipe, and when the high-temperature compressed air enters the inside of the spiral cooling rack through the connecting pipe, the impeller is driven to rotate, so that the impeller is driven to drive the spiral cooling rack to rotate in the main body through the connecting pipe, and the spiral cooling rack synchronously rotates while cooling along with the high-temperature compressed air entering the inside of the spiral cooling cavity, and meanwhile, a plurality of groups of spray water pipes spray and cool cooling water to the outer side of the spiral cooling rack, so that the rotating spiral cooling rack is uniformly contacted with the cooling water in all directions, the cooling effect of the high-temperature air is effectively improved, and the overall working efficiency is improved;
according to the invention, when the spiral cooling frame rotates, the main gears drive the multiple groups of planetary gears to rotate, the autorotation planetary gears drive the air suction impellers to rotate, so that the air suction impellers suck air from the outside into the main body, the spiral cooling frame and cooling water absorbing heat are further cooled, and as each group of air suction impellers are positioned below the spray water pipes, the cooling water sprayed out of the spray water pipes can diffuse the cooling water when contacting the air suction impellers, the uniformity of the cooling water in spraying is further improved, and the integral cooling effect is effectively improved.
Drawings
FIG. 1 is a schematic view of a first view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an exploded view of the spiral cooling rack of the present invention;
FIG. 4 is an exploded view of the first portion of the present invention;
FIG. 5 is an exploded view of the second portion of the present invention;
fig. 6 is a schematic structural diagram of a second view angle of the present invention.
In the figure: 1. a main body; 2. a spiral cooling rack; 3. a connecting pipe; 4. a central cylinder; 5. an air inlet pipe; 6. driving the impeller; 7. a spiral cooling cavity; 8. an exhaust pipe; 9. a main gear; 10. a planetary gear; 11. an air suction impeller; 12. a shower pipe; 13. a water tank; 14. a water injection pipe; 15. a first support frame; 16. a first support bar; 17. a second support frame; 18. a second support bar; 19. a rotating ring; 20. a connecting rod; 21. an annular slide rail; 22. a drain tank; 23. a flow pipe; 24. a drain pipe; 25. and a fixing frame.
Description of the embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
1-5, the cryogenic air separation plant comprises a main body 1, wherein a spiral cooling frame 2 is rotatably connected inside the main body 1, a spiral cooling cavity 7 is formed inside the spiral cooling frame 2, and a central cylinder 4 is fixed at the bottom of the main body 1;
the top end of the inside of the central cylinder 4 is rotationally connected with a connecting pipe 3 fixedly connected with the spiral cooling frame 2, the bottom of the connecting pipe 3 is fixedly provided with a driving impeller 6 positioned in the inside of the central cylinder 4, connecting holes are formed in two sides of the bottom of the connecting pipe 3, the bottom of the central cylinder 4 is provided with an air inlet pipe 5, and the central position of the top of the spiral cooling frame 2 is provided with an exhaust pipe 8 communicated with a spiral cooling cavity 7;
the outer side of the exhaust pipe 8 is fixedly provided with a main gear 9, four corners of the outer side of the main gear 9 are respectively meshed with a planetary gear 10, the tops of the four groups of planetary gears 10 are respectively fixedly provided with an air suction impeller 11, a spray water pipe 12 is fixedly arranged above the four groups of air suction impellers 11 in the main body 1, a water tank 13 communicated with the four groups of spray water pipes 12 is fixedly arranged on the outer side of the top of the main body 1, one side of the water tank 13 is fixedly provided with a water injection pipe 14, when high-temperature compressed air enters the inside of the central cylinder 4 through the air inlet pipe 5, the high-temperature compressed air enters the inside of the spiral cooling frame 2 through the connecting pipe 3, the driving impellers 6 are driven to rotate, and then the driving impellers 6 drive the spiral cooling frame 2 to rotate in the main body 1 through the connecting pipe 3, and the spiral cooling frame 2 synchronously rotates while the high-temperature compressed air enters the inside of the spiral cooling cavity 7 to be cooled;
meanwhile, multiunit spray header 12 sprays cooling water to the spiral cooling frame 2 outside, and then make the more even and cooling water all-round uniform contact of pivoted spiral cooling frame 2, the effectual cooling effect that improves high temperature air has improved holistic work efficiency, main part 1 bottom outside is fixed with water drainage tank 22, main part 1 bottom four corners department all is provided with the runner pipe 23 that is linked together with water drainage tank 22, water drainage tank 22 is linked together through four sets of runner pipes 23 and main part 1 inside, water drainage tank 22 one side is provided with drain pipe 24, wherein water drainage tank 22 can discharge the cooling water after the heat absorption outside.
Referring to fig. 5, a first support 15 is fixedly arranged at the top of a main body 1, first support rods 16 movably connected with a planetary gear 10 are fixed at four corners of the inner side of the first support 15, a second support 17 is fixedly arranged at the top of the main body 1, and second support rods 18 matched with a shower pipe 12 are fixed at four corners of the inner side of the second support 17.
Referring to fig. 4, an annular slide rail 21 is fixed on the inner wall of the main body 1, a rotating ring 19 extending into the annular slide rail 21 is fixed on one side of the connecting pipe 3, a connecting rod 20 fixedly connected with the connecting pipe 3 is fixedly arranged on one side of the rotating ring 19 away from the connecting pipe 3, and a sliding groove matched with the rotating ring 19 is formed in the annular slide rail 21.
Referring to fig. 1 and 6, a fixing frame 25 is fixedly arranged at the top of a main body 1, connecting plates matched with an exhaust pipe 8 are fixed at four corners of the inner side of the fixing frame 25, and the exhaust pipe 8 is rotationally connected with a plurality of groups of connecting plates, and by arranging the structure, the fixing frame 25 plays a role in movably limiting the exhaust pipe 8, so that the problem that the exhaust pipe 8 shakes along with the rotation of a spiral cooling frame 2 is avoided.
The working principle of the invention is as follows: when in use, firstly, air enters an air compressor after dust and mechanical impurities are removed through an air filter, is compressed to the required pressure, and then is sent into an air cooler to reduce the air temperature;
when high-temperature compressed air enters the inside of the central cylinder 4 through the air inlet pipe 5, and enters the inside of the spiral cooling rack 2 through the connecting pipe 3, the driving impeller 6 is driven to rotate, and then the driving impeller 6 drives the spiral cooling rack 2 to rotate in the main body 1 through the connecting pipe 3, and the spiral cooling rack 2 synchronously rotates while cooling along with the high-temperature compressed air entering the inside of the spiral cooling cavity 7;
meanwhile, the plurality of groups of spray water pipes 12 spray and cool the cooling water to the outer side of the spiral cooling rack 2, so that the rotating spiral cooling rack 2 is more uniformly contacted with the cooling water uniformly in all directions, the cooling effect of high-temperature air is effectively improved, and the overall working efficiency is improved;
further, when the spiral cooling frame 2 rotates, the main gear 9 drives the plurality of groups of planetary gears 10 to rotate, the rotating planetary gears 10 drive the air suction impeller 11 to rotate, and then the air suction impeller 11 sucks air from the outside into the main body 1, so that the spiral cooling frame 2 and cooling water absorbing heat are further cooled;
and because each group of air suction impellers 11 is positioned below the spray water pipe 12, when cooling water sprayed by the spray water pipe 12 contacts the air suction impellers 11, the air suction impellers 11 can also play a role in diffusing the cooling water, so that the uniformity of the cooling water in spraying is further improved, and the integral cooling effect is effectively improved;
after the high-temperature compressed air is cooled, the compressed air is discharged through an exhaust pipe 8 at the top of the spiral cooling frame 2, and then the cooled compressed air enters the outside air drying purifier;
the compressed air entering the air drying purifier is subjected to water, carbon dioxide, acetylene and other hydrocarbon removal, the purified air enters a main heat exchanger in an air separation tower, is cooled to a saturation temperature by a reflux gas (product nitrogen and waste gas), is sent to the bottom of a rectifying tower, nitrogen is obtained at the top of the tower, liquid air is throttled and then is sent to a condensing evaporator for evaporation, part of the nitrogen sent by the rectifying tower is condensed, one part of condensed liquid ammonia is used as reflux liquid of the rectifying tower, and the other part of condensed liquid ammonia is used as liquid ammonia product and is discharged from the air separation tower;
the above results show that the cooling effect of the whole cooling device on the high-temperature air is relatively uniform, so that the high-temperature air in the spiral cooling rack 2 is more comprehensively contacted with the cooling water sprayed from the outside, the whole cooling effect is improved, and the whole working efficiency is improved.
Although embodiments of the invention have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the invention as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the invention, provided that such modifications are within the scope of the appended claims.
Claims (4)
1. Cryogenic air separation plant, comprising a main body (1), characterized in that: the inside of the main body (1) is rotationally connected with a spiral cooling frame (2), a spiral cooling cavity (7) is formed in the spiral cooling frame (2), and a central cylinder (4) is fixed at the bottom of the main body (1);
the top end inside the central cylinder (4) is rotationally connected with a connecting pipe (3) fixedly connected with the spiral cooling frame (2), a driving impeller (6) positioned inside the central cylinder (4) is fixed at the bottom of the connecting pipe (3), connecting holes are formed in two sides of the bottom of the connecting pipe (3), an air inlet pipe (5) is arranged at the bottom of the central cylinder (4), and an exhaust pipe (8) communicated with a spiral cooling cavity (7) is arranged at the central position of the top of the spiral cooling frame (2);
the utility model discloses a novel air conditioner, which is characterized in that a main gear (9) is fixed on the outer side of an exhaust pipe (8), planetary gears (10) are meshed at four outer side four corners of the main gear (9), air suction impellers (11) are fixed at the tops of four groups of planetary gears (10), a spray pipe (12) is fixed above the four groups of air suction impellers (11) in a main body (1), a first support frame (15) is fixedly arranged at the top of the main body (1), a first support rod (16) movably connected with the planetary gears (10) is fixed at four inner side four corners of the first support frame (15), a second support frame (17) is fixedly arranged at the top of the main body (1), a second support rod (18) matched with the spray pipe (12) is fixed at four inner side four corners of the second support frame (17), an annular slide rail (21) is fixed on the inner wall of the main body (1), a rotating ring (19) extending to the inner side of the annular slide rail (21) is fixed on one side of the connecting pipe (3), a connecting rod (20) fixedly connected with the connecting pipe (3) is fixedly arranged at one side far away from the inner side of the connecting pipe (19), a rotating ring (21) is fixedly connected with the connecting rod (3), a fixed support frame (25) is arranged at the inner side of the connecting rod (21) and is matched with the rotating ring (21), and the four corners of the inner side of the fixing frame (25) are fixed with connecting plates matched with the exhaust pipes (8), and the exhaust pipes (8) are rotationally connected with a plurality of groups of connecting plates.
2. A cryogenic air separation plant according to claim 1, characterized in that: the water tank (13) communicated with the four groups of spray water pipes (12) is fixed on the outer side of the top of the main body (1), and a water injection pipe (14) is fixed on one side of the water tank (13).
3. A cryogenic air separation plant according to claim 1, characterized in that: the drainage box (22) is fixed on the outer side of the bottom of the main body (1), and flow pipes (23) communicated with the drainage box (22) are arranged at four corners of the bottom of the main body (1).
4. A cryogenic air separation plant according to claim 3, characterized in that: the drainage box (22) is communicated with the inside of the main body (1) through four groups of flow pipes (23), and a drainage pipe (24) is arranged on one side of the drainage box (22).
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| CN202310186351.5A CN115900230B (en) | 2023-03-02 | 2023-03-02 | Cryogenic air separation plant |
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| CN202310186351.5A CN115900230B (en) | 2023-03-02 | 2023-03-02 | Cryogenic air separation plant |
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| CN207770081U (en) * | 2017-12-22 | 2018-08-28 | 临安派祺空气净化科技有限公司 | A kind of center cylinder of cyclone separator of air cooling heat exchange |
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| KR102015507B1 (en) * | 2017-12-20 | 2019-08-28 | 주식회사 포스코 | Oxygen and nitrogen generator including cooling device of coolant |
| KR20210115304A (en) * | 2020-03-12 | 2021-09-27 | 엘지전자 주식회사 | Impeller |
| CN111336769A (en) * | 2020-03-16 | 2020-06-26 | 嘉兴市加宇电器科技有限公司 | High-efficient type air separation equipment |
| CN211847747U (en) * | 2020-03-20 | 2020-11-03 | 天津富成源肥业有限公司 | Cooling cylinder for compound fertilizer production |
| CN212362887U (en) * | 2020-04-15 | 2021-01-15 | 河源美克顿微金属有限公司 | Nitrogen compressor cooling tower |
| CN113390272A (en) * | 2021-05-31 | 2021-09-14 | 王新明 | A fountain condenser for industrial production |
| CN216409511U (en) * | 2021-08-31 | 2022-04-29 | 云南曲靖呈钢钢铁（集团）有限公司 | Air cooling system of air separation device |
| CN113952748A (en) * | 2021-11-25 | 2022-01-21 | 徐州宏武纳米科技有限公司 | Cooling device of carbon nanotube purification device |
| CN216898527U (en) * | 2022-01-06 | 2022-07-05 | 苏州双利空调安装维修有限公司 | Water distribution device for air conditioner cooling tower |
| CN217887322U (en) * | 2022-07-06 | 2022-11-25 | 常州晨安智能装备科技有限公司 | Waste gas treatment device for quenching furnace |
| CN218155070U (en) * | 2022-09-27 | 2022-12-27 | 葛吉红 | Air pre-cooling mechanism of air separation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207770081U (en) * | 2017-12-22 | 2018-08-28 | 临安派祺空气净化科技有限公司 | A kind of center cylinder of cyclone separator of air cooling heat exchange |
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Denomination of invention: A cryogenic air separation device Effective date of registration: 20230808 Granted publication date: 20230602 Pledgee: Zhejiang Fuyang Rural Commercial Bank of the West Branch of Limited by Share Ltd. Pledgor: Zhejiang Shenger gas equipment manufacturing Co.,Ltd. Registration number: Y2023980051277 |
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