Carbon dioxide recovery VPSA (Vacuum Pressure Swing Adsorption) device capable of efficiently utilizing adsorbent

Abstract

The utility model relates to the field of carbon dioxide recovery, and discloses a carbon dioxide recovery VPSA device capable of efficiently utilizing adsorbents, which comprises a carbon dioxide recovery VPSA device main body, the outer wall of the bottom end of the carbon dioxide recovery VPSA device main body is fixedly connected with an air inlet pipe, and the inside of the carbon dioxide recovery VPSA device main body is slidably connected with a mounting frame. An adsorption assembly is arranged on the inner side of the mounting frame, an exhaust pipe is fixedly connected to the top of the carbon dioxide recovery VPSA device main body, a mounting box is fixedly connected to the outer wall of one side of the carbon dioxide recovery VPSA device main body, and a vacuum pump is fixedly connected to the interior of the mounting box. According to the carbon dioxide recovery VPSA device, the vacuum pump is started, so that gas at the top of the carbon dioxide recovery VPSA device main body is conveyed to the bottom of the carbon dioxide recovery VPSA device main body through the exhaust pipe, the circulating pipe, the first connecting pipe and the second connecting pipe, and the treated gas can be treated again.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide recovery, in particular to a VPSA device for recovering carbon dioxide which efficiently utilizes an adsorbent. Background Art

[0002] Vacuum pressure swing adsorption technology is used to recover carbon dioxide, which has the advantages of low investment, low energy consumption, simple equipment, and flexible operation. It uses activated carbon, silica gel, 13X zeolite molecular sieve, high silicon molecular sieve, carbon molecular sieve and other adsorbents for carbon dioxide adsorbent materials, so the existing carbon dioxide recovery VPSA device has been continuously innovated and developed. Therefore, it can be seen that the current carbon dioxide recovery VPSA device basically meets people's needs, but there are still some problems.

[0003] For example, the patent document with the announcement number CN216136968U discloses a VPSA system for recovering carbon dioxide with high efficiency using adsorbent, including an air inlet pipe, an exhaust pipe, a pressure equalizing pipe, a vacuum pipe 1, a vacuum pipe 2, a vacuum pump 1, a vacuum pump 2 and at least 3 adsorption towers, wherein the adsorption towers are connected to the air inlet pipe through a program-controlled valve 1, the adsorption towers are connected to the exhaust pipe through a program-controlled valve 2, the adsorption towers are connected to the pressure equalizing pipe through a program-controlled valve 3, the adsorption towers are connected to the vacuum pipe 1 through a program-controlled valve 4, the air outlet of the vacuum pipe 1 is connected to the vacuum pump 1, the vacuum pipe 1 is connected to the vacuum pipe 2, the air outlet of the vacuum pipe 2 is connected to the vacuum pump 2, and the air outlet of the vacuum pump 2 is connected to the product buffer tank; the vacuum pipe 1 is provided with a vacuum buffer tank 1, and the vacuum pipe 2 is provided with a vacuum buffer tank 2. This system can effectively reduce energy consumption and improve the utilization rate of adsorbent.

[0004] However, when the above device is actually used, although the vacuum pump 1, vacuum pump 2, vacuum buffer tank 1 and vacuum buffer tank 2 can effectively reduce energy consumption and improve the utilization rate of the adsorbent, it occupies a large area when in use due to the need for vacuum pump 1, vacuum pump 2, vacuum buffer tank 1 and vacuum buffer tank 2, and the operation is cumbersome during use, which is inconvenient for the staff to use. Therefore, a carbon dioxide recovery VPSA device that efficiently utilizes adsorbents is urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a VPSA device for recovering carbon dioxide by efficiently utilizing adsorbent, so as to solve the problems in the above-mentioned background technology that the device occupies a large area when in use, is cumbersome to operate, and is inconvenient for staff to use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution, which discloses a carbon dioxide recovery VPSA device that efficiently utilizes adsorbents, including a carbon dioxide recovery VPSA device body, the bottom outer wall of the carbon dioxide recovery VPSA device body is fixedly connected to an air inlet pipe, the interior of the carbon dioxide recovery VPSA device body is slidably connected to a mounting frame, an adsorption assembly is arranged on the inner side of the mounting frame, and the top of the carbon dioxide recovery VPSA device body is fixedly connected to an exhaust pipe;

[0007] An installation box is fixedly connected to the outer wall of one side of the carbon dioxide recovery VPSA device body, a vacuum pump is fixedly connected to the interior of the installation box, a first connecting pipe is fixedly connected to the suction end of the vacuum pump, a circulation pipe is fixedly connected to the top end of the first connecting pipe, and the top end of the circulation pipe is fixedly connected to the outer wall of one side of the exhaust pipe, a second connecting pipe is fixedly connected to the exhaust end of the vacuum pump, and the top end of the second connecting pipe passes through the bottom end of the carbon dioxide recovery VPSA device body.

[0008] As a preferred technical solution of the utility model, the outer wall of the carbon dioxide recovery VPSA device body is fixedly connected with a limit plate, and the limit plate is located on the top outer side of the mounting frame, and the top outer side of the mounting frame is fixedly connected with a sealing strip.

[0009] As a preferred technical solution of the utility model, a fixing bolt is installed through the thread of the outer wall of the limiting plate, and the bottom end of the fixing bolt is against the top outer wall of the mounting frame.

[0010] As a preferred technical solution of the utility model, a first electric valve is provided on the top outer wall of the exhaust pipe, and a second electric valve is provided on the top outer wall of the circulation pipe.

[0011] As a preferred technical solution of the utility model, a carbon dioxide detector is fixedly connected to the top of the carbon dioxide recovery VPSA device body, and the detection end of the carbon dioxide detector passes through the inner side of the top of the carbon dioxide recovery VPSA device body.

[0012] As a preferred technical solution of the utility model, the inner side wall of the carbon dioxide recovery VPSA device body is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a transmission rod, and the outer wall of the transmission rod is fixedly connected to a fan blade.

[0013] As a preferred technical solution of the utility model, a controller is fixedly connected to the outer wall of the installation box, and the controller is electrically connected to the carbon dioxide detector, the first electric valve, the second electric valve, the servo motor and the vacuum pump.

[0014] As a preferred technical solution of the utility model, the mounting frames are arranged in three groups, and the three groups of mounting frames are all provided with adsorption components.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model can detect the carbon dioxide concentration in the gas on the inner side of the top of the carbon dioxide recovery VPSA device body through a carbon dioxide detector, and by starting the vacuum pump, the gas on the top of the carbon dioxide recovery VPSA device body is transported to the bottom of the carbon dioxide recovery VPSA device body through the exhaust pipe, the circulation pipe, the first connecting pipe and the second connecting pipe, so that the treated gas can be processed again, so that the carbon dioxide recovery VPSA device body can efficiently process the carbon dioxide in the gas. This device occupies a small area when in use and is easy to operate when in use, which is convenient for staff to use.

[0017] 2. The utility model can limit the top of the mounting frame through the limiting plate, and then through the fixing bolt, the bottom end of the fixing bolt is against the top outer wall of the mounting frame, thereby ensuring the stability of the mounting frame and making it convenient for the staff to remove the mounting frame from the inner side of the main body of the carbon dioxide recovery VPSA device, so as to facilitate the staff to replace and clean the adsorption components on the inner side of the mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the placement rack of the utility model;

[0020] Figure 3 This is a schematic diagram of the exhaust pipe structure of the utility model;

[0021] Figure 4 It is a schematic cross-sectional structure diagram of the carbon dioxide recovery VPSA device of the present utility model.

[0022] In the figure: 1. Main body of the carbon dioxide recovery VPSA device; 2. Inlet pipe; 3. Limit plate; 4. Mounting frame; 5. Fixing bolt; 6. Sealing strip; 7. Adsorption component; 8. Carbon dioxide detector; 9. Exhaust pipe; 10. First electric valve; 11. Circulation pipe; 12. Second electric valve; 13. Servo motor; 14. Transmission rod; 15. Fan blade; 16. Mounting box; 17. Vacuum pump; 18. First connecting pipe; 19. Second connecting pipe; 20. Controller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 3 , a VPSA device for recovering carbon dioxide using adsorbent efficiently:

[0025] The device comprises a carbon dioxide recovery VPSA device body 1, an air inlet pipe 2 is fixedly connected to the outer wall of the bottom end of the carbon dioxide recovery VPSA device body 1, a mounting frame 4 is slidably connected to the inside of the carbon dioxide recovery VPSA device body 1, an adsorption assembly 7 is arranged on the inner side of the mounting frame 4, and an exhaust pipe 9 is fixedly connected to the top of the carbon dioxide recovery VPSA device body 1;

[0026] An installation box 16 is fixedly connected to the outer wall of one side of the carbon dioxide recovery VPSA device body 1, and a vacuum pump 17 is fixedly connected to the interior of the installation box 16. The suction end of the vacuum pump 17 is fixedly connected to a first connecting pipe 18, and the top of the first connecting pipe 18 is fixedly connected to a circulation pipe 11, and the top of the circulation pipe 11 is fixedly connected to the outer wall of one side of the exhaust pipe 9, and the exhaust end of the vacuum pump 17 is fixedly connected to a second connecting pipe 19, and the top of the second connecting pipe 19 passes through the bottom end of the carbon dioxide recovery VPSA device body 1.

[0027] The treated gas can be transported to the interior of the carbon dioxide recovery VPSA device body 1 through the air inlet pipe 2, and the carbon dioxide in the treated gas can be adsorbed through the adsorption component 7. When the gas in the treated gas is not completely adsorbed, the vacuum pump 17 is started to allow the gas at the top of the carbon dioxide recovery VPSA device body 1 to be transported to the bottom of the carbon dioxide recovery VPSA device body 1 through the exhaust pipe 9, the circulation pipe 11, the first connecting pipe 18 and the second connecting pipe 19, so that the treated gas can be processed again.

[0028] In a preferred embodiment, the outer wall of the carbon dioxide recovery VPSA device body 1 is fixedly connected to a limiting plate 3, and the limiting plate 3 is located on the outer side of the top end of the mounting frame 4, and the outer side of the top end of the mounting frame 4 is fixedly connected to a sealing strip 6, and a fixing bolt 5 is installed through a thread on the outer wall of the limiting plate 3, and the bottom end of the fixing bolt 5 is against the outer wall of the top end of the mounting frame 4.

[0029] The top of the mounting frame 4 can be limited by the limiting plate 3, and then the bottom end of the fixing bolt 5 is made to rest against the top outer wall of the mounting frame 4 through the fixing bolt 5, thereby ensuring the stability of the mounting frame 4 and making it convenient for the staff to remove the mounting frame 4 from the inner side of the carbon dioxide recovery VPSA device body 1, and to replace and clean the adsorption assembly 7 on the inner side of the mounting frame 4.

[0030] In a preferred embodiment, a first electric valve 10 is provided on the top outer wall of the exhaust pipe 9, a second electric valve 12 is provided on the top outer wall of the circulation pipe 11, a carbon dioxide detector 8 is fixedly connected to the top of the carbon dioxide recovery VPSA device body 1, and the detection end of the carbon dioxide detector 8 passes through the inner side of the top of the carbon dioxide recovery VPSA device body 1.

[0031] The carbon dioxide concentration in the gas on the inner side of the top of the carbon dioxide recovery VPSA device body 1 can be detected by the carbon dioxide detector 8. When the carbon dioxide concentration is too high, the first electric valve 10 is closed and the second electric valve 12 is opened, so that the vacuum pump 17 can transport the adsorbed gas to the bottom of the carbon dioxide recovery VPSA device body 1, so that the gas can be adsorbed again. When the carbon dioxide concentration reaches the treatment standard, the first electric valve 10 is opened and the second electric valve 12 is closed, so that the treated gas is discharged through the exhaust pipe 9.

[0032] See also Figure 1 and Figure 4 , a VPSA device for recovering carbon dioxide using adsorbent efficiently:

[0033] A servo motor 13 is fixedly connected to the inner wall of the main body 1 of the carbon dioxide recovery VPSA device, a transmission rod 14 is fixedly connected to the output end of the servo motor 13 , and a fan blade 15 is fixedly connected to the outer wall of the transmission rod 14 .

[0034] The servo motor 13 is operated, and when the servo motor 13 is in operation, the fan blades 15 can be driven to rotate through the transmission rod 14. When the fan blades 15 rotate, the air inside the carbon dioxide recovery VPSA device body 1 can be disturbed, so that the gas can be evenly adsorbed inside the carbon dioxide recovery VPSA device body 1, thereby improving the efficiency of carbon dioxide adsorption in the gas.

[0035] In a preferred embodiment, a controller 20 is fixedly connected to the outer wall of the installation box 16 , and the controller 20 is electrically connected to the carbon dioxide detector 8 , the first electric valve 10 , the second electric valve 12 , the servo motor 13 and the vacuum pump 17 .

[0036] The controller 20 can control the operation of the electrical connection among the carbon dioxide detector 8 , the first electric valve 10 , the second electric valve 12 , the servo motor 13 and the vacuum pump 17 .

[0037] In a preferred embodiment, the mounting racks 4 are arranged in three groups, and the three groups of mounting racks 4 are all provided with adsorption components 7 .

[0038] The three groups of adsorption components 7 can adsorb the gas entering the carbon dioxide recovery VPSA device body 1, thereby improving the adsorption efficiency of carbon dioxide in the carbon dioxide recovery VPSA device body 1.

[0039] Working principle: the treated gas can be transported to the interior of the carbon dioxide recovery VPSA device body 1 through the air inlet pipe 2, and the carbon dioxide in the treated gas can be adsorbed through the adsorption component 7. When the gas in the treated gas is not completely adsorbed, the carbon dioxide concentration in the gas on the inner side of the top of the carbon dioxide recovery VPSA device body 1 can be detected by the carbon dioxide detector 8. When the carbon dioxide concentration is too high, the first electric valve 10 is closed, the second electric valve 12 is opened, and the vacuum pump 17 is started, so that the gas on the top of the carbon dioxide recovery VPSA device body 1 is transported to the bottom of the carbon dioxide recovery VPSA device body 1 through the exhaust pipe 9, the circulation pipe 11, the first connecting pipe 18 and the second connecting pipe 19, so that the treated gas can be processed again. When the carbon dioxide concentration reaches the treatment standard, the first electric valve 10 is opened and the second electric valve 12 is closed, so that the treated gas is discharged through the exhaust pipe 9.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A VPSA device for recovering carbon dioxide with high efficiency using adsorbent, comprising a main body of the VPSA device for recovering carbon dioxide (1), characterized in that: The outer wall of the bottom end of the carbon dioxide recovery VPSA device body (1) is fixedly connected to an air inlet pipe (2); the interior of the carbon dioxide recovery VPSA device body (1) is slidably connected to a mounting frame (4); an adsorption assembly (7) is arranged on the inner side of the mounting frame (4); and the top of the carbon dioxide recovery VPSA device body (1) is fixedly connected to an exhaust pipe (9); An installation box (16) is fixedly connected to the outer wall of one side of the main body (1) of the carbon dioxide recovery VPSA device, a vacuum pump (17) is fixedly connected inside the installation box (16), a first connecting pipe (18) is fixedly connected to the suction end of the vacuum pump (17), a circulation pipe (11) is fixedly connected to the top end of the first connecting pipe (18), and the top end of the circulation pipe (11) is fixedly connected to the outer wall of one side of the exhaust pipe (9), and a second connecting pipe (19) is fixedly connected to the exhaust end of the vacuum pump (17), and the top end of the second connecting pipe (19) passes through the bottom end of the main body (1) of the carbon dioxide recovery VPSA device.

2. A VPSA device for recovering carbon dioxide with high efficiency using adsorbent according to claim 1, characterized in that: The outer wall of the carbon dioxide recovery VPSA device body (1) is fixedly connected to a limit plate (3), and the limit plate (3) is located outside the top end of the mounting frame (4), and the top end of the mounting frame (4) is fixedly connected to a sealing strip (6).

3. A VPSA device for recovering carbon dioxide with high efficiency using adsorbent according to claim 2, characterized in that: A fixing bolt (5) is installed through a thread on the outer wall of the limiting plate (3), and the bottom end of the fixing bolt (5) abuts against the top outer wall of the mounting frame (4).

4. The VPSA device for recovering carbon dioxide by efficiently utilizing adsorbent according to claim 1, characterized in that: A first electric valve (10) is provided on the top outer wall of the exhaust pipe (9), and a second electric valve (12) is provided on the top outer wall of the circulation pipe (11).

5. The VPSA device for recovering carbon dioxide by efficiently utilizing adsorbent according to claim 1, characterized in that: A carbon dioxide detector (8) is fixedly connected to the top of the carbon dioxide recovery VPSA device body (1), and a detection end of the carbon dioxide detector (8) passes through the inner side of the top of the carbon dioxide recovery VPSA device body (1).

6. The VPSA device for recovering carbon dioxide by efficiently utilizing adsorbent according to claim 1, characterized in that: A servo motor (13) is fixedly connected to the inner side wall of the carbon dioxide recovery VPSA device body (1), a transmission rod (14) is fixedly connected to the output end of the servo motor (13), and a fan blade (15) is fixedly connected to the outer wall of the transmission rod (14).

7. The VPSA device for recovering carbon dioxide by efficiently utilizing adsorbent according to claim 1, characterized in that: A controller (20) is fixedly connected to the outer wall of the installation box (16), and the controller (20) is electrically connected to the carbon dioxide detector (8), the first electric valve (10), the second electric valve (12), the servo motor (13) and the vacuum pump (17).

8. The VPSA device for recovering carbon dioxide by efficiently utilizing adsorbent according to claim 1, characterized in that: The mounting frames (4) are arranged in three groups, and the three groups of mounting frames (4) are all provided with adsorption components (7).

Images