Temperature swing adsorption carbon dioxide enrichment tower

Abstract

The utility model provides a temperature swing adsorption carbon dioxide enrichment tower which is characterized in that an upper seal head is arranged at the top of a lower tank body and is filled with a porous aminated carbon-based adsorbent, an air inlet three-way valve assembly is positioned at the bottom of the lower tank body and is connected with an air inlet diffusion port, and an air outlet diffusion port is positioned on the inner side of the upper seal head; the temperature of the built-in heat exchange ring pipe is regulated and controlled through a heat conduction oil inlet special connecting pipe and a built-in heat exchange ring pipe oil inlet valve assembly, the tank body jacket oil inlet valve assembly assists temperature control adsorbent to be supplemented through a top filling opening, the exhaust gas discharge valve assembly controls discharge through an L-shaped three-way ball valve, and an adsorbent discharge hole is formed in the bottom of the lower tank body. And a bolt connection pair and a stainless steel winding gasket are adopted for sealing. The heat conduction oil system is a temperature swing adsorption heat supply system, the working temperature of heat conduction oil can reach 340 DEG C without generating phase change, and compared with hot water serving as a temperature swing heat supply medium, the heat exchange temperature difference is increased, the trapping efficiency is improved, and the trapping energy consumption is reduced; a special adsorbent is used, so that harmful substances are prevented from entering carbon dioxide products.

Description

Technical Field

[0001] The utility model relates to the technical fields of nonferrous metallurgy and gas separation, in particular to a temperature-swing adsorption carbon dioxide enrichment tower. Background Art

[0002] Non-ferrous metallurgical furnaces, as the core energy-consuming equipment in the metallurgical industry, face problems such as low energy efficiency, high energy consumption and large carbon dioxide emissions. This has become a bottleneck restricting the non-ferrous metallurgical industry from achieving the "dual carbon" goals. At present, the carbon dioxide emissions of the non-ferrous metallurgical industry account for more than 6% of the total national emissions. Carbon emission reduction has become the most realistic challenge facing the metallurgical industry.

[0003] Under the background of carbon neutrality, CO2 capture and utilization of end-negative carbon technology is an effective way to achieve green and low-carbon development of my country's metallurgical industry. However, the non-ferrous metallurgical industry is different from the steel metallurgical industry. There are many complex problems in the smelting process. In the smelting process of the non-ferrous metallurgical industry, the flue gas presents a state of coexistence of multiple components, and the content of harmful substances such as sulfur species is high, the gas temperature fluctuates greatly, and the water vapor content is high. These problems lead to low carbon dioxide capture efficiency, short equipment service life, and high energy consumption, resulting in insufficient resource utilization of carbon dioxide in metallurgical furnaces.

[0004] Therefore, it is necessary to provide a temperature-swing adsorption carbon dioxide enrichment tower to solve the above technical problems. Utility Model Content

[0005] The utility model provides a temperature-swing adsorption carbon dioxide enrichment tower, which solves the problems of low carbon dioxide capture efficiency, short equipment service life, high energy consumption, and insufficient carbon dioxide resource utilization in metallurgical furnaces.

[0006] In order to solve the above technical problems, the utility model provides a temperature-swing adsorption carbon dioxide enrichment tower, comprising: a lower tank body, an upper head, an air inlet three-way valve assembly, an air inlet diffuser, a porous aminated carbon-based adsorbent, a built-in heat exchange loop, an air outlet diffuser, a built-in heat exchange loop oil inlet valve assembly, a special pipe for the inlet of thermal oil, a tank jacket oil inlet valve assembly, a special pipe for the outlet of thermal oil, a jacket oil outlet shut-off valve, a bolt connection pair, a stainless steel spiral wound gasket, an adsorbent filling port, an outlet regulating valve, a pressure sensor, an on-site pressure gauge, an L-shaped A three-way ball valve, a spent gas discharge valve assembly and an adsorbent discharge hole; the upper head is arranged on the top of the lower tank body, the porous aminated carbon-based adsorbent is arranged inside the upper head and the lower tank body, the air inlet three-way valve assembly is arranged at the bottom of the lower tank body, the air inlet diffuser is arranged on the inner side of the lower tank body, the top of the air inlet three-way valve assembly is connected to the bottom of the air inlet diffuser, the air outlet diffuser is arranged on the inner side of the upper head, and the internal heat exchange loop is arranged on the lower On the inner side of the tank body, the special pipe for the heat transfer oil inlet is fixedly installed on the input end of the internal heat exchange loop pipe, the oil inlet valve assembly of the internal heat exchange loop pipe is fixedly installed on the input end of the special pipe for the heat transfer oil inlet, the tank jacket oil inlet valve assembly is arranged on one side of the lower tank body, the special pipe for the heat transfer oil outlet is fixedly installed on the output end of the internal heat exchange loop pipe, the jacket oil outlet cut-off valve is arranged on the top of one side of the lower tank body, the stainless steel spiral wound gasket is arranged on the outer side of the bolt connection pair, the The bolt connection pairs are respectively arranged at the top of the lower tank body and the bottom of the upper head, the adsorbent filling port is arranged at the top of the upper head, the outlet regulating valve is arranged at the top of the upper head, the pressure sensor and the on-site pressure gauge are both arranged at the top of the upper head, the L-type three-way ball valve is fixedly installed on the top of the outlet regulating valve, the exhausted gas discharge valve assembly is fixedly installed on the output end of the L-type three-way ball valve, and the adsorbent discharge hole is installed at the bottom of one side of the lower tank body.

[0007] Preferably, the lower tank body includes an elliptical head, a straight barrel, an acid-resistant rubber lining, a connecting flange, a heat-conducting oil heating jacket, a barrel insulation layer, an air inlet flange interface, an oil inlet pipe seat of an internal heat exchange loop pipe, an oil outlet pipe seat of an internal heat exchange loop pipe, an adsorbent discharge hole pipe seat, a jacket oil inlet, a jacket oil outlet and a support leg. The straight barrel is fixedly installed on the top of the elliptical head, the acid-resistant rubber lining is arranged on the inner side surface of the straight barrel, the connecting flange is arranged on the top of the straight barrel, the heat-conducting oil heating jacket is arranged on the side surface of the straight barrel, the barrel insulation layer is arranged on the outer side surface of the straight barrel, the air inlet flange interface is fixedly installed on the bottom of the elliptical head, the oil inlet pipe seat of the internal heat exchange loop pipe is fixedly installed on one side of the straight barrel, the oil outlet pipe seat of the internal heat exchange loop pipe is fixedly installed on one side of the straight barrel, the adsorbent discharge hole pipe seat is fixedly installed On the other side of the straight section of the cylinder, the jacket oil inlet is fixedly installed on one side of the straight section of the cylinder, the jacket oil outlet is fixedly installed on one side of the straight section of the cylinder, and the legs are respectively fixedly installed on the four sides of the bottom of the elliptical head. The upper head includes a second elliptical head, a second acid-resistant rubber lining, a second connecting flange, an adsorbent filling port pipe seat, an outlet regulating valve pipe seat, a pressure sensor pipe seat, and an on-site pressure gauge pipe seat. The second acid-resistant rubber lining is arranged on the inner side surface of the second elliptical head, the second elliptical head is fixedly installed on the top of the straight section of the cylinder, the second connecting flange is fixedly installed on the inside of the second elliptical head, the adsorbent filling port pipe seat is fixedly installed on the top of the second elliptical head, the outlet regulating valve pipe seat is fixedly installed on the top of the second elliptical head, and the pressure sensor pipe seat and the on-site pressure gauge pipe seat are both arranged on the top of the second elliptical head.

[0008] Preferably, the air intake three-way valve assembly includes a first flange tee, a cooling gas shut-off valve and a flue gas inlet shut-off valve. The first flange tee is fixedly installed at the bottom of the lower tank body, the cooling gas shut-off valve is fixedly installed at one end of the first flange tee, and the flue gas inlet shut-off valve is fixedly installed at the other end of the first flange tee. The air intake diffuser includes a second flange tee, an inlet flange rubber gasket, an inlet flange connecting bolt, a bolt rubber gasket, a diffuser flange, a stainless steel graphite wound gasket, a connecting bolt pair, a first stainless steel filter screen and a second stainless steel filter screen. The second flange tee is arranged on the inner side of the lower tank body, the inlet flange rubber gasket is arranged at the bottom of the second flange tee, the inlet flange connecting bolts are arranged inside the two ends of the bottom of the second flange tee, the bolt rubber gasket is arranged at the bottom of the second flange tee, the diffuser flange is arranged on the end face of the second flange tee, the stainless steel graphite wound gasket is arranged on the end face of the second flange tee, the connecting bolt pair, the first stainless steel filter screen and the second stainless steel filter screen are all arranged on the end face of the second flange tee.

[0009] Preferably, the special pipe for the thermal oil outlet includes a rubber-lined flange blind plate, a rubber gasket, a high-strength bolt connection pair, a second rubber-lined flange blind plate, a second rubber gasket and a second high-strength bolt connection pair. The high-strength bolt connection pair is arranged inside the rubber-lined flange blind plate, the rubber gasket is sleeved on the outer side surface of the high-strength bolt connection pair, the second high-strength bolt connection pair is arranged inside the second rubber-lined flange blind plate, and the second rubber gasket is sleeved on the outer side surface of the second high-strength bolt connection pair.

[0010] Preferably, the inner side surface of the lower tank body is provided with a jacket straight section, the outer side surface of the jacket straight section is provided with a jacket bottom ring, the rubber gasket is provided at the bottom of the lower tank body, the tapped flat flange is provided at the bottom of the rubber gasket, the seamless steel pipe is fixedly installed at the bottom of the tapped flat flange, the third standard flange is fixedly installed at the bottom of the seamless steel pipe, a short pipe is fixedly installed on the side of the lower tank body, one end of the short pipe is fixedly installed with a fifth standard flange, the other side of the lower tank body is fixedly installed with an eighth seamless steel pipe, one end of the eighth seamless steel pipe is fixedly installed with a sixth standard flange, one side of the lower tank body is fixedly installed with a steel pipe, and one end of the steel pipe is fixedly installed with a fourth standard flange.

[0011] Preferably, a threaded sleeve is fixedly installed on the bottom of the support leg, the internal thread of the threaded sleeve is connected to a threaded rod, and a pad is fixedly installed on the bottom of the threaded rod.

[0012] Preferably, rotating plates are fixedly mounted on both ends of the top of the pad.

[0013] Compared with related technologies, the temperature-swing adsorption carbon dioxide enrichment tower provided by the present invention has the following beneficial effects:

[0014] The utility model provides a temperature swing adsorption carbon dioxide enrichment tower. By using a heat transfer oil system as a temperature swing adsorption heating system, the heat transfer oil can reach a working temperature of 340°C without phase change, and the designed working temperature is 200°C. Compared with using hot water as a temperature swing heating medium, the heat exchange temperature difference is increased, the carbon dioxide capture efficiency is improved, and the capture energy consumption is reduced.

[0015] The use of porous aminated carbon-based special adsorbents prevents harmful substances from entering the carbon dioxide product;

[0016] An L-type three-way ball valve and a pressure sensor with a measuring range of -75kPa~0.6MPa are interlocked to realize the temperature and pressure variable carbon dioxide adsorption function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a first embodiment of a temperature swing adsorption carbon dioxide enrichment tower provided by the present invention;

[0018] Figure 2 for Figure 1 The top structure diagram shown;

[0019] Figure 3 for Figure 1 The schematic diagram of the side nozzle orientation is shown;

[0020] Figure 4 for Figure 1 Schematic diagram of the bottom air inlet connection structure shown;

[0021] Figure 5 for Figure 1 Schematic diagram of the lower tank structure shown;

[0022] Figure 6 for Figure 5 The schematic diagram of the lower tank body butt weld grinding structure is shown;

[0023] Figure 7 for Figure 5 The schematic diagram of the rubber lining structure of the flange on the top of the lower tank body is shown;

[0024] Figure 8 for Figure 5 The schematic diagram of the rubber lining structure of the lower tank body pipe seat is shown;

[0025] Figure 9 for Figure 5 Schematic diagram of the heating jacket structure shown;

[0026] Figure 10 for Figure 5 The schematic diagram of the air intake flange interface structure is shown;

[0027] Figure 11 for Figure 5 The schematic diagram of the short tube structure shown;

[0028] Figure 12 for Figure 1 The schematic diagram of the structure of the oil inlet and outlet of the jacket is shown;

[0029] Figure 13 for Figure 1 The schematic diagram of the upper head structure from above is shown;

[0030] Figure 14 for Figure 13 The schematic diagram of the rubber lining structure of the upper head flange is shown;

[0031] Figure 15 for Figure 1 The schematic diagram of the standard flange structure is shown;

[0032] Figure 16 for Figure 1 The schematic diagram of the structure of the intake three-way valve assembly is shown;

[0033] Figure 17 for Figure 1 Schematic diagram of the air inlet diffuser structure shown;

[0034] Figure 18 for Figure 1 Schematic diagram of the adsorbent filling port structure shown;

[0035] Figure 19 for Figure 1 Schematic diagram of the adsorbent unloading pore structure shown;

[0036] Figure 20 This is a structural schematic diagram of a second embodiment of a temperature-swing adsorption carbon dioxide enrichment tower provided by the present invention.

[0037] Numbers in the figure: 5, porous aminated carbon-based adsorbent; 6, built-in heat exchange loop; 7, air outlet diffuser; 8, built-in heat exchange loop oil inlet valve assembly; 9, special pipe for thermal oil inlet; 11, special pipe for thermal oil outlet; 12, jacket oil outlet shut-off valve; 13, bolt connection pair; 14, stainless steel spiral wound gasket; 15, adsorbent filling port; 16, outlet regulating valve; 17, pressure sensor; 18, local pressure gauge; 19, L-type three-way ball valve; 20, exhaust gas discharge valve assembly; 21, adsorbent discharge hole; 35, jacket straight section; 36, jacket bottom ring; 37, rubber gasket; 38, tapped flat flange; 39, seamless steel pipe; 40, third standard flange; 41, short pipe; 42, fifth standard flange; 43, eighth seamless steel pipe; 44, sixth standard flange; 53, steel pipe; 54, fourth standard flange.

[0038] 1. Lower tank body; 22. Oval head; 23. Straight section of the barrel; 24. Acid-resistant rubber lining; 25. Connecting flange; 26. Thermal oil supply jacket; 27. Insulation layer of the barrel; 28. Air inlet flange; 29. Oil inlet socket for the internal heat exchange loop; 30. Oil outlet socket for the internal heat exchange loop; 31. Adsorbent discharge port socket; 32. Jacket oil inlet; 33. Jacket oil outlet; 34. Support legs;

[0039] 2. Upper head; 45. Oval head; 46. Second acid-resistant rubber lining; 47. Second connecting flange; 48. Adsorbent filling port socket; 49. Outlet regulating valve socket; 50. Pressure sensor socket; 51. Local pressure gauge socket;

[0040] 3. Inlet three-way valve assembly; 61. First flange three-way pipe; 62. Cooling gas shut-off valve; 63. Flue gas inlet shut-off valve;

[0041] 4. Air inlet diffuser; 64. Second flange tee; 65. Inlet flange rubber gasket; 66. Inlet flange connecting bolts; 67. Bolt rubber gasket; 68. Diffuser flange; 69. Stainless steel graphite spiral wound gasket; 70. Connecting bolt pair; 71. First stainless steel filter screen; 72. Second stainless steel filter screen;

[0042] Tank jacket oil inlet valve assembly;

[0043] Special pipe for thermal oil outlet, 102, rubber-lined blind flange; 103, rubber gasket; 104, high-strength bolt connection pair; 110, second rubber-lined blind flange; 111, second rubber gasket; 112, second high-strength bolt connection pair; 341, threaded sleeve; 342, threaded rod; 343, gasket; 344, rotating plate. DETAILED DESCRIPTION

[0044] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0045] First embodiment

[0046] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 and Figure 19 ,in, Figure 1 This is a schematic structural diagram of a first embodiment of a temperature swing adsorption carbon dioxide enrichment tower provided by the present invention; Figure 2 for Figure 1 The top structure diagram shown; Figure 3 for Figure 1 The schematic diagram of the side nozzle orientation is shown; Figure 4 for Figure 1 Schematic diagram of the bottom air inlet connection structure shown; Figure 5 for Figure 1 Schematic diagram of the lower tank structure shown; Figure 6 for Figure 5 The schematic diagram of the lower tank body butt weld grinding structure is shown; Figure 7 for Figure 5 The schematic diagram of the rubber lining structure of the flange on the top of the lower tank body is shown; Figure 8 for Figure 5 The schematic diagram of the rubber lining structure of the lower tank body pipe seat is shown; Figure 9 for Figure 5 Schematic diagram of the heating jacket structure shown; Figure 10 for Figure 5 The schematic diagram of the air intake flange interface structure is shown; Figure 11 for Figure 5 The schematic diagram of the short tube structure shown; Figure 12 for Figure 1 The schematic diagram of the structure of the oil inlet and outlet of the jacket is shown; Figure 13 for Figure 1 The schematic diagram of the upper head structure from above is shown; Figure 14 for Figure 13 The schematic diagram of the rubber lining structure of the upper head flange is shown; Figure 15 for Figure 1 The schematic diagram of the standard flange structure is shown; Figure 16for Figure 1 The schematic diagram of the structure of the intake three-way valve assembly is shown; Figure 17 for Figure 1 The schematic diagram of the air inlet diffuser structure shown; Figure 18 for Figure 1 Schematic diagram of the adsorbent filling port structure shown; Figure 19 for Figure 1 A temperature-swing adsorption carbon dioxide enrichment tower comprises: a lower tank body 1, an upper head 2, an air inlet three-way valve assembly 3, an air inlet diffuser 4, a porous aminated carbon-based adsorbent 5, a built-in heat exchange loop 6, an air outlet diffuser 7, an oil inlet valve assembly 8 for the built-in heat exchange loop, a special pipe for the heat transfer oil inlet 9, a tank jacket oil inlet valve assembly 10, a special pipe for the heat transfer oil outlet 11, a jacket oil outlet shut-off valve 12, a bolt connection pair 13, a stainless steel spiral wound gasket 14, an adsorbent filling port 15, an outlet regulating valve 16, a pressure sensor 17, an on-site pressure gauge 18, an L-shaped three-way ball valve 19, and an exhaust gas The discharge valve assembly 20 and the adsorbent discharge hole 21; the upper head 2 is arranged on the top of the lower tank body 1, the porous aminated carbon-based adsorbent 5 is arranged inside the upper head 2 and the lower tank body 1, the air inlet three-way valve assembly 3 is arranged at the bottom of the lower tank body 1, the air inlet diffuser 4 is arranged on the inner side of the lower tank body 1, the top of the air inlet three-way valve assembly 3 and the bottom of the air inlet diffuser 4 are connected, the air outlet diffuser 7 is arranged on the inner side of the upper head 2, and the internal heat exchange loop 6 is arranged on the inner side of the lower tank body 1 The special pipe 9 for the heat transfer oil inlet is fixedly installed on the input end of the internal heat exchange loop pipe 6, the oil inlet valve assembly 8 for the internal heat exchange loop pipe is fixedly installed on the input end of the special pipe 9 for the heat transfer oil inlet, the tank jacket oil inlet valve assembly 10 is arranged on one side of the lower tank body 1, the special pipe 11 for the heat transfer oil outlet is fixedly installed on the output end of the internal heat exchange loop pipe 6, the jacket oil outlet cut-off valve 12 is arranged on the top of one side of the lower tank body 1, the stainless steel spiral wound gasket 14 is arranged on the outer side of the bolt connection pair 13, and the bolt connection pair 13 is divided They are respectively arranged at the top of the lower tank body 1 and the bottom of the upper head 2, the adsorbent filling port 15 is arranged at the top of the upper head 2, the outlet regulating valve 16 is arranged at the top of the upper head 2, the pressure sensor 17 and the on-site pressure gauge 18 are both arranged at the top of the upper head 2, the L-type three-way ball valve 19 is fixedly installed on the top of the outlet regulating valve 16, the exhausted gas discharge valve assembly 20 is fixedly installed at the output end of the L-type three-way ball valve 19, and the adsorbent discharge hole 21 is installed at the bottom of one side of the lower tank body 1.

[0047] The lower tank body 1 includes an elliptical head 22, a straight barrel 23, an acid-resistant rubber lining 24, a connecting flange 25, a heat-conducting oil heating jacket 26, a barrel insulation layer 27, an air inlet flange interface 28, an oil inlet pipe seat 29 for an internal heat exchange loop pipe, an oil outlet pipe seat 30 for an internal heat exchange loop pipe, an adsorbent discharge hole pipe seat 31, a jacket oil inlet 32, a jacket oil outlet 33 and a support leg 34. The straight barrel 23 is fixedly mounted on the top of the elliptical head 22, and the acid-resistant rubber lining 24 is arranged on the inner side of the straight barrel 23. The connecting flange 25 is arranged on the top of the straight section barrel 23, the heat transfer oil supply jacket 26 is arranged on the side of the straight section barrel 23, the barrel insulation layer 27 is arranged on the outer side of the straight section barrel 23, the air inlet flange interface 28 is fixedly installed on the bottom of the elliptical head 22, the oil inlet pipe seat 29 of the internal heat exchange loop is fixedly installed on one side of the straight section barrel 23, the oil outlet pipe seat 30 of the internal heat exchange loop is fixedly installed on one side of the straight section barrel 23, and the adsorbent discharge hole pipe seat 31 is fixedly installed on the On the other side of the straight section barrel 23, the jacket oil inlet 32 is fixedly mounted on one side of the straight section barrel 23, the jacket oil outlet 33 is fixedly mounted on one side of the straight section barrel 23, the legs 34 are fixedly mounted on the four sides of the bottom of the elliptical head 22, the upper head 2 includes a second elliptical head 45, a second acid-resistant rubber lining 46, a second connecting flange 47, an adsorbent filling port socket 48, an outlet regulating valve socket 49, a pressure sensor socket 50, an on-site pressure gauge socket 51, the second acid-resistant rubber lining 4 6 is arranged on the inner side surface of the second elliptical head 45, the second elliptical head 45 is fixedly mounted on the top of the straight section cylinder 23, the second connecting flange 47 is fixedly mounted inside the second elliptical head 45, the adsorbent filling port socket 48 is fixedly mounted on the top of the second elliptical head 45, the outlet regulating valve socket 49 is fixedly mounted on the top of the second elliptical head 45, and the pressure sensor socket 50 and the local pressure gauge socket 51 are both arranged on the top of the second elliptical head 45.

[0048] The air intake three-way valve assembly 3 includes a first flange three-way pipe 61, a cooling gas shut-off valve 62 and a flue gas inlet shut-off valve 63. The first flange three-way pipe 61 is fixedly installed at the bottom of the lower tank body 1, the cooling gas shut-off valve 62 is fixedly installed at one end of the first flange three-way pipe 61, and the flue gas inlet shut-off valve 63 is fixedly installed at the other end of the first flange three-way pipe 61. The air intake diffuser 4 includes a second flange three-way pipe 64, an inlet flange rubber gasket 65, an inlet flange connecting bolt 66, a bolt rubber gasket 67, a diffuser flange 68, a stainless steel graphite wound gasket 69, a connecting bolt pair 70, a first stainless steel filter screen 71 and a second stainless steel filter screen 7 2. The second flange tee 64 is arranged on the inner side surface of the lower tank body 1, the inlet flange rubber gasket 65 is arranged at the bottom of the second flange tee 64, the inlet flange connecting bolts 66 are arranged inside the two ends of the bottom of the second flange tee 64, the bolt rubber gasket 67 is arranged at the bottom of the second flange tee 64, the diffuser flange 68 is arranged on the end face of the second flange tee 64, the stainless steel graphite wound gasket 69 is arranged on the end face of the second flange tee 64, and the connecting bolt pair 70, the first stainless steel filter screen 71 and the second stainless steel filter screen 72 are all arranged on the end face of the second flange tee 64.

[0049] The special pipe 11 for the thermal oil outlet includes a rubber-lined flange blind plate 102, a rubber gasket 103, a high-strength bolt connection pair 104, a second rubber-lined flange blind plate 110, a second rubber gasket 111 and a second high-strength bolt connection pair 112. The high-strength bolt connection pair 104 is arranged inside the rubber-lined flange blind plate 102, the rubber gasket 103 is sleeved on the outer side of the high-strength bolt connection pair 104, the second high-strength bolt connection pair 112 is arranged inside the second rubber-lined flange blind plate 110, and the second rubber gasket 111 is sleeved on the outer side of the second high-strength bolt connection pair 112.

[0050] The inner side surface of the lower tank body 1 is provided with a jacket straight section 35, the outer side surface of the jacket straight section 35 is provided with a jacket bottom ring 36, the rubber gasket 37 is provided at the bottom of the lower tank body 1, the tapped flat flange 38 is provided at the bottom of the rubber gasket 37, the seamless steel pipe 39 is fixedly installed at the bottom of the tapped flat flange 38, the third standard flange 40 is fixedly installed at the bottom of the seamless steel pipe 39, a short pipe 41 is fixedly installed on the side of the lower tank body 1, one end of the short pipe 41 is fixedly installed with a fifth standard flange 42, the other side of the lower tank body 2 is fixedly installed with an eighth seamless steel pipe 43, one end of the eighth seamless steel pipe 43 is fixedly installed with a sixth standard flange 44, a steel pipe 53 is fixedly installed on one side of the lower tank body 2, and one end of the steel pipe 53 is fixedly installed with a fourth standard flange 54.

[0051] The internal heat exchange loop pipe 6 includes an inlet flange pipe, a lower outer ring pipe, a lower inner ring pipe, a ring pipe connecting pipe, an outer ring heat exchange pipe, an inner ring heat exchange pipe, an upper inner ring pipe, an upper outer ring pipe and an outlet flange pipe. The lower outer ring pipe is fixedly mounted on the output end of the inlet flange pipe, the lower inner ring pipe is arranged on the inner side of the lower outer ring pipe, the outer ring heat exchange pipe is fixedly mounted on the top of the lower outer ring pipe, the upper outer ring pipe is fixedly mounted on the top of the outer ring heat exchange pipe, the inner ring heat exchange pipe is fixedly mounted on the top of the lower inner ring pipe, the upper inner ring pipe is fixedly mounted on the top of the inner ring heat exchange pipe, the input end of the outlet flange pipe is fixedly mounted on the output end of the upper outer ring pipe, and the ring pipe connecting pipe is respectively fixedly mounted on the lower outer ring pipe and the lower inner ring pipe and in the middle of the upper outer ring pipe and the upper inner ring pipe;

[0052] The special pipe 9 for the heat transfer oil inlet and the special pipe 11 for the heat transfer oil outlet both include a welding flange, a seamless steel pipe, a special manhole flange, a high-temperature resistant rubber ring, a special pressure plate flange, a fastening bolt, a spring washer and a threaded connection flange. The welding flange is fixedly installed on one end of the seamless steel pipe, the threaded connection flange is fixedly installed on the other end of the seamless steel pipe, the special manhole flange is arranged on the outer side of the seamless steel pipe, the special pressure plate flange and the high-temperature resistant rubber ring are both arranged on the outer side of the seamless steel pipe, the special pressure plate flange is arranged on the outer side of the high-temperature resistant rubber ring, the spring washer is sleeved on the outer side of the fastening bolt, the fastening bolt is arranged inside the special pressure plate flange, and one end is threadedly connected to the inside of one side of the special manhole flange;

[0053] The internal heat exchange loop oil inlet valve assembly 8 includes a flange tee, an oil inlet shut-off valve and an oil discharge shut-off valve. The oil inlet shut-off valve is fixedly mounted on one end of the flange tee, and the oil discharge shut-off valve is fixedly mounted on the bottom of the flange tee.

[0054] The air outlet 7 includes a flange, a bolt connection pair, a stainless steel graphite wound gasket, a five-mesh stainless steel filter screen, a thirty-five-mesh stainless steel filter screen, and a seventy-five-mesh stainless steel filter screen. The thirty-five-mesh stainless steel filter screen is arranged on one side of the five-mesh stainless steel filter screen, the seventy-five-mesh stainless steel filter screen is arranged on one side of the thirty-five-mesh stainless steel filter screen, the flange is arranged on one side of the seventy-five-mesh stainless steel filter screen, the bolt connection pair is arranged inside the flange, and the stainless steel graphite wound gasket is arranged on the outer side of the bolt connection pair.

[0055] The exhaust gas discharge assembly 20 includes an exhaust pipe extension section, a flue gas inlet section, a CO2 content detection section, a CO2 content analyzer and a flue gas outlet section. The exhaust pipe extension section is fixedly installed at the output end of the L-shaped three-way ball valve, the flue gas inlet section is fixedly installed at the exhaust pipe extension section, the CO2 content detection section is fixedly installed at the output end of the flue gas inlet section, the CO2 content analyzer is fixedly installed on both sides of the CO2 content detection section, and the flue gas outlet section is fixedly installed at the output end of the CO2 content detection section.

[0056] The working principle of the temperature-swing adsorption carbon dioxide enrichment tower provided by the utility model is as follows:

[0057] The tank body composed of the lower tank body 1 and the upper head 2 is filled with a porous aminated carbon-based adsorbent 5; the flue gas enters the tank body through the air inlet three-way valve assembly 3 and the air inlet diffuser 4, and after the porous aminated carbon-based adsorbent 5 adsorbs carbon dioxide, the exhaust gas is discharged through the air outlet diffuser 7, the L-type three-way ball valve 19, and the exhaust gas discharge valve assembly 20; when the exhaust gas discharge valve assembly 20 detects that the carbon dioxide concentration reaches 25% of the intake air concentration, the L-type three-way ball valve 19 switches to the gas recovery side to recover the carbon dioxide gas. The heat transfer oil enters the heat exchange loop 6 and the tank jacket through the built-in heat exchange loop oil inlet valve assembly 8 and the tank jacket oil inlet valve assembly 10, supplying heat to the tank to achieve temperature-variable desorption of carbon dioxide gas; when the pressure in the tank becomes negative, the cooled carbon dioxide gas enters the tank through the air inlet three-way valve assembly 3, cooling the tank and the adsorbent. At this time, the heat transfer oil in the tank is discharged through the built-in heat exchange loop oil inlet valve assembly 8 and the tank jacket oil inlet valve assembly 10. When the temperature in the tank reaches the design temperature, the carbon dioxide gas capture is completed once.

[0058] Compared with related technologies, the temperature-swing adsorption carbon dioxide enrichment tower provided by the present invention has the following beneficial effects:

[0059] By using a thermal oil system as a temperature swing adsorption heating system, the operating temperature of the thermal oil can reach 340°C without phase change, and the designed operating temperature is 200°C. Compared with using hot water as a temperature swing heating medium, the heat exchange temperature difference is increased, the carbon dioxide capture efficiency is improved, and the capture energy consumption is reduced;

[0060] The use of porous aminated carbon-based special adsorbents prevents harmful substances from entering the carbon dioxide product;

[0061] An L-type three-way ball valve and a pressure sensor 17 with a measuring range of -75 kPa to 0.6 MPa are interlocked to realize the temperature- and pressure-variable carbon dioxide adsorption function.

[0062] Second embodiment

[0063] Please refer to Figure 20 Based on the temperature swing adsorption carbon dioxide enrichment tower provided in the first embodiment of this application, the second embodiment of this application provides another temperature swing adsorption carbon dioxide enrichment tower. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0064] Specifically, the difference of the temperature-swing adsorption carbon dioxide enrichment tower provided in the second embodiment of the present application is that, in a temperature-swing adsorption carbon dioxide enrichment tower, a threaded sleeve 341 is fixedly installed at the bottom of the support leg 34, the internal thread of the threaded sleeve 341 is connected to a threaded rod 342, and a pad 343 is fixedly installed at the bottom of the threaded rod 342.

[0065] Rotating plates 344 are fixedly mounted on both ends of the top of the pad 343 .

[0066] The working principle of the temperature-swing adsorption carbon dioxide enrichment tower provided by the utility model is as follows:

[0067] When in use, when the level of the lower tank body 1 needs to be adjusted, the user can rotate the rotating plate 344, so that the rotating plate 344 drives the pad 343 to rotate, and the pad 343 drives the threaded rod 342 to be threadedly connected inside the threaded sleeve 341, so that the threaded rod 342 moves downward, thereby adjusting the level of the lower tank body 1.

[0068] Compared with related technologies, the temperature-swing adsorption carbon dioxide enrichment tower provided by the present invention has the following beneficial effects:

[0069] By cooperating with each other through the structures such as the threaded sleeve 341, the threaded rod 342, the pad 343 and the rotating plate 344, when in use, the threaded rod 342 is threadedly connected inside the threaded sleeve 341, so that the bottom of the threaded rod 342 drives the pad 343 to move downward, thereby facilitating the user to adjust the level of the lower tank body 1.

[0070] The above description is merely 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 description 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 temperature swing adsorption carbon dioxide enrichment tower, characterized in that: include: Lower tank body, upper head, air inlet three-way valve assembly, air inlet diffuser, porous aminated carbon-based adsorbent, built-in heat exchange loop, air outlet diffuser, built-in heat exchange loop oil inlet valve assembly, special pipe for thermal oil inlet, tank jacket oil inlet valve assembly, special pipe for thermal oil outlet, jacket oil outlet shut-off valve, bolt connection pair, stainless steel spiral wound gasket, adsorbent filling port, outlet regulating valve, pressure sensor, on-site pressure gauge, L-type three-way ball valve, exhaust gas discharge valve assembly and adsorbent discharge hole; the upper head It is arranged on the top of the lower tank body, the porous aminated carbon-based adsorbent is arranged on the inside of the upper head and the lower tank body, the air inlet three-way valve assembly is arranged on the bottom of the lower tank body, the air inlet diffuser is arranged on the inner side of the lower tank body, the top of the air inlet three-way valve assembly is connected to the bottom of the air inlet diffuser, the air outlet diffuser is arranged on the inner side of the upper head, the internal heat exchange loop is arranged on the inner side of the lower tank body, the heat transfer oil inlet is specially connected The pipe is fixedly installed on the input end of the internal heat exchange loop pipe, the internal heat exchange loop pipe oil inlet valve assembly is fixedly installed on the input end of the special pipe for the heat transfer oil inlet, the tank jacket oil inlet valve assembly is arranged on one side of the lower tank body, the special pipe for the heat transfer oil outlet is fixedly installed on the output end of the internal heat exchange loop pipe, the jacket oil outlet cut-off valve is arranged on the top of one side of the lower tank body, the stainless steel spiral wound gasket is arranged on the outer side surface of the bolt connection pair, the bolt connection pair is respectively arranged on the top of the lower tank body and the bottom of the upper head, the adsorbent filling port is arranged on the top of the upper head, the outlet regulating valve is arranged on the top of the upper head, the pressure sensor and the on-site pressure gauge are both arranged on the top of the upper head, the L-type three-way ball valve is fixedly installed on the top of the outlet regulating valve, the exhausted gas discharge valve assembly is fixedly installed on the output end of the L-type three-way ball valve, and the adsorbent discharge hole is installed at the bottom of one side of the lower tank body.

2. A temperature swing adsorption carbon dioxide enrichment tower according to claim 1, characterized in that: The lower tank body includes an elliptical head, a straight barrel, an acid-resistant rubber lining, a connecting flange, a heat-conducting oil heating jacket, a barrel insulation layer, an air inlet flange interface, an oil inlet pipe seat of an internal heat exchange loop pipe, an oil outlet pipe seat of an internal heat exchange loop pipe, an adsorbent discharge hole pipe seat, a jacket oil inlet, a jacket oil outlet and a support leg. The straight barrel is fixedly installed on the top of the elliptical head, the acid-resistant rubber lining is arranged on the inner side surface of the straight barrel, the connecting flange is arranged on the top of the straight barrel, the heat-conducting oil heating jacket is arranged on the side surface of the straight barrel, the barrel insulation layer is arranged on the outer side surface of the straight barrel, the air inlet flange interface is fixedly installed on the bottom of the elliptical head, the oil inlet pipe seat of the internal heat exchange loop pipe is fixedly installed on one side of the straight barrel, the oil outlet pipe seat of the internal heat exchange loop pipe is fixedly installed on one side of the straight barrel, the adsorbent discharge hole pipe seat is fixedly installed on the straight barrel. On the other side of the cylinder body, the jacket oil inlet is fixedly installed on one side of the straight section of the cylinder body, the jacket oil outlet is fixedly installed on one side of the straight section of the cylinder body, and the legs are respectively fixedly installed on the four sides of the bottom of the elliptical head. The upper head includes a second elliptical head, a second acid-resistant rubber lining, a second connecting flange, an adsorbent filling port pipe seat, an outlet regulating valve pipe seat, a pressure sensor pipe seat, and an on-site pressure gauge pipe seat. The second acid-resistant rubber lining is arranged on the inner side surface of the second elliptical head, the second elliptical head is fixedly installed on the top of the straight section of the cylinder body, the second connecting flange is fixedly installed on the inside of the second elliptical head, the adsorbent filling port pipe seat is fixedly installed on the top of the second elliptical head, the outlet regulating valve pipe seat is fixedly installed on the top of the second elliptical head, and the pressure sensor pipe seat and the on-site pressure gauge pipe seat are both arranged on the top of the second elliptical head.

3. The temperature swing adsorption carbon dioxide enrichment tower according to claim 1, characterized in that: The air intake three-way valve assembly includes a first flange three-way pipe, a cooling gas shut-off valve and a flue gas inlet shut-off valve. The first flange three-way pipe is fixedly installed at the bottom of the lower tank body, the cooling gas shut-off valve is fixedly installed at one end of the first flange three-way pipe, and the flue gas inlet shut-off valve is fixedly installed at the other end of the first flange three-way pipe. The air intake diffuser includes a second flange three-way pipe, an inlet flange rubber gasket, an inlet flange connecting bolt, a bolt rubber gasket, a diffuser flange, a stainless steel graphite wound gasket, a connecting bolt pair, a first stainless steel filter screen and a second stainless steel filter screen. The second flange tee is arranged on the inner side surface of the lower tank body, the inlet flange rubber gasket is arranged at the bottom of the second flange tee, the inlet flange connecting bolts are arranged inside the two ends of the bottom of the second flange tee, the bolt rubber gasket is arranged at the bottom of the second flange tee, the diffuser flange is arranged on the end face of the second flange tee, the stainless steel graphite wound gasket is arranged on the end face of the second flange tee, the connecting bolt pair, the first stainless steel filter screen and the second stainless steel filter screen are all arranged on the end face of the second flange tee.

4. The temperature swing adsorption carbon dioxide enrichment tower according to claim 1, characterized in that: The special pipe for the thermal oil outlet includes a rubber-lined flange blind plate, a rubber gasket, a high-strength bolt connection pair, a second rubber-lined flange blind plate, a second rubber gasket and a second high-strength bolt connection pair. The high-strength bolt connection pair is arranged inside the rubber-lined flange blind plate, the rubber gasket is sleeved on the outer side of the high-strength bolt connection pair, the second high-strength bolt connection pair is arranged inside the second rubber-lined flange blind plate, and the second rubber gasket is sleeved on the outer side of the second high-strength bolt connection pair.

5. The temperature swing adsorption carbon dioxide enrichment tower according to claim 1, characterized in that: The inner side surface of the lower tank body is provided with a jacket straight section, the outer side surface of the jacket straight section is provided with a jacket bottom ring, a rubber gasket is provided at the bottom of the lower tank body, a tapped flat flange is provided at the bottom of the rubber gasket, a seamless steel pipe is fixedly installed at the bottom of the tapped flat flange, a third standard flange is fixedly installed at the bottom of the seamless steel pipe, a short pipe is fixedly installed on the side of the lower tank body, one end of the short pipe is fixedly installed with a fifth standard flange, an eighth seamless steel pipe is fixedly installed on the other side of the lower tank body, one end of the eighth seamless steel pipe is fixedly installed with a sixth standard flange, a steel pipe is fixedly installed on one side of the lower tank body, and one end of the steel pipe is fixedly installed with a fourth standard flange.

6. The temperature swing adsorption carbon dioxide enrichment tower according to claim 2, characterized in that: A threaded sleeve is fixedly installed on the bottom of the support leg, a threaded rod is connected to the inner thread of the threaded sleeve, and a pad is fixedly installed on the bottom of the threaded rod.

7. The temperature swing adsorption carbon dioxide enrichment tower according to claim 6, characterized in that: Rotating plates are fixedly mounted on both ends of the top of the pad.

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