Waste gas recycling device for carbon neutralization

Abstract

The utility model discloses a waste gas recycling device for carbon neutralization, which comprises a refrigerating machine, the refrigerating machine is connected with a gas reservoir through a guide pipe, a gas outlet of the gas reservoir is connected with a vertical pipe, a gas outlet of the vertical pipe is connected with a gas storage tank through a guide pipe, seven gas outlet connectors are arranged on the vertical pipe, and the gas storage tank is connected with the gas storage tank through a guide pipe. The seven gas outlet connectors are connected with seven gas storage tanks through seven guide pipes correspondingly, and the seven gas outlet connectors in the vertical pipe are in butt joint with a first gas outlet pipe, a second gas outlet pipe, a third gas outlet pipe, a fourth gas outlet pipe, a fifth gas outlet pipe, a sixth gas outlet pipe and a seventh gas outlet pipe correspondingly. Carbon-neutralized waste gas is liquefied through the refrigerating machine, then various liquid gases are sequentially gasified by controlling the temperature interval, and various gases are collected through the corresponding gas storage tanks, so that the waste gas is thoroughly separated, and the gases can be recycled.

Description

Technical Field

[0001] This utility model relates to the field of waste gas recovery technology, specifically a waste gas recovery and utilization device for carbon neutralization. Background Technology

[0002] Carbon-neutralized exhaust gases mainly include perfluorocarbons (PFCOs), hydrofluorocarbons (HFCs), sulfur hexafluoride (SF6), nitrous oxide (NO), carbon dioxide (CO2), nitrogen trifluoride (NDI), and methane. These gases are known as greenhouse gases; they absorb and re-emit infrared radiation in the atmosphere, contributing to the greenhouse effect and global warming. PFCOs have a melting point of 29°C, hydrofluorocarbons a boiling point of -42.1°C, SF6 a boiling point of -63.8°C, CO2 a boiling point of -78.5°C, SF6 a boiling point of -88.5°C, NDI a boiling point of -129°C, and methane a boiling point of -161.5°C.

[0003] Currently, there is no device for recycling carbon-neutral waste gas, which leads to resource waste and the emission of these mixed gases into the atmosphere contributes to the greenhouse effect; therefore, it is necessary to design a device that can separate carbon-neutral waste gas. Utility Model Content

[0004] In view of the problems existing in a current waste gas recovery and utilization device for carbon neutrality, this utility model is proposed.

[0005] Therefore, the purpose of this invention is to provide a device for recovering and utilizing carbon-neutralized waste gas, which solves the problem that there is currently no device for recovering and utilizing carbon-neutralized waste gas, resulting in resource waste and the emission of these mixed gases into the atmosphere, which leads to the greenhouse effect; therefore, it is necessary to design a device that can separate carbon-neutralized waste gas.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] A waste gas recovery and utilization device for carbon neutrality includes a refrigeration unit, which is connected to a gas storage tank via a conduit. The gas outlet of the gas storage tank is connected to a vertical pipe, and the gas outlet of the vertical pipe is connected to a gas storage tank via a conduit.

[0008] As a preferred embodiment of the waste gas recovery and utilization device for carbon neutralization described in this utility model, the vertical pipe has seven gas outlet ports, and the seven gas outlet ports are respectively connected to seven gas storage tanks through seven conduits.

[0009] As a preferred embodiment of the waste gas recovery and utilization device for carbon neutralization described in this utility model, the seven gas outlet ports on the vertical pipe are respectively connected to the first gas outlet pipe, the second gas outlet pipe, the third gas outlet pipe, the fourth gas outlet pipe, the fifth gas outlet pipe, the sixth gas outlet pipe and the seventh gas outlet pipe.

[0010] The ends of the first, second, third, fourth, fifth, sixth, and seventh vent pipes are respectively connected to the first, second, third, fourth, fifth, sixth, and seventh storage tanks.

[0011] As a preferred embodiment of the waste gas recovery and utilization device for carbon neutralization described in this utility model, the first storage tank, the second storage tank, the third storage tank, the fourth storage tank, the fifth storage tank, the sixth storage tank, and the seventh storage tank are respectively used to store methane, nitrogen trifluoride, carbon dioxide, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons, and perfluorocarbons.

[0012] As a preferred embodiment of the waste gas recovery and utilization device for carbon neutralization described in this utility model, the seven gas outlet ports on the vertical pipe from bottom to top are respectively equipped with a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, and a seventh valve.

[0013] As a preferred embodiment of the waste gas recovery and utilization device for carbon neutralization described in this utility model, wherein: a first exhaust pump, a second exhaust pump, a third exhaust pump, a fourth exhaust pump, a fifth exhaust pump, a sixth exhaust pump, and a seventh exhaust pump are respectively installed on the first exhaust pipe, the second exhaust pipe, the third exhaust pipe, the fourth exhaust pump, the fifth exhaust pump, the sixth exhaust pump, and the seventh exhaust pump.

[0014] In a preferred embodiment of the waste gas recovery and utilization device for carbon neutralization described in this utility model, the refrigeration unit is configured as a pulse tube refrigeration unit; the pulse tube refrigeration unit includes a compressor, the compressor is connected to a regenerator via a conduit, the regenerator is connected to a cold end heat exchanger of the pulse tube via a conduit, the hot end heat exchanger of the pulse tube is connected to a gas reservoir via a conduit, and a small orifice valve is installed on the conduit connecting the gas reservoir and the hot end heat exchanger of the pulse tube.

[0015] Compared with existing technologies:

[0016] The carbon-neutralized waste gas is liquefied using a refrigeration unit. Then, by controlling the temperature range, the various liquid gases are vaporized sequentially, and the gases are collected through corresponding storage tanks, thus ensuring thorough separation of the waste gas and enabling its recycling. Attached Figure Description

[0017] Figure 1This is a structural schematic diagram of the present invention;

[0018] Figure 2 Provided by this utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a structural schematic diagram of the present invention.

[0020] In the diagram: 1. Compressor; 2. Regenerator; 3. Pulse tube; 4. Hot end heat exchanger; 5. Cold end heat exchanger; 6. Small orifice valve; 7. Gas storage tank; 8. First outlet pipe; 9. Second outlet pipe; 10. Third outlet pipe; 11. Fourth outlet pipe; 12. Fifth outlet pipe; 13. Sixth outlet pipe; 14. Seventh outlet pipe; 15. First storage tank; 16. Second storage tank; 17. Third storage tank; 18. Fourth storage tank; 19. Fifth storage tank; 20. Sixth storage tank; 21. Seventh storage tank; 22. Vertical pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0022] Example 1:

[0023] This utility model provides a waste gas recovery and utilization device for carbon neutralization. Please refer to [link / reference]. Figure 1-2 The system includes a refrigeration unit, specifically a pulse tube refrigeration unit. The pulse tube refrigeration unit includes a compressor 1, which is connected to a regenerator 2 via a conduit. The regenerator 2 is connected to a cold-end heat exchanger 5 of a pulse tube 3 via a conduit. The hot-end heat exchanger 4 of the pulse tube 3 is connected to a gas reservoir 7 via a conduit. A small-hole valve 6 is installed on the conduit connecting the gas reservoir 7 and the hot-end heat exchanger 4 of the pulse tube 3. Alternatively, the refrigeration unit can be a Stirling refrigeration unit, as both Stirling and pulse tube refrigeration units can cool gas to -20 degrees Celsius.

[0024] The refrigeration unit is connected to a gas storage tank 7 via a conduit. The outlet of the gas storage tank 7 is connected to a vertical pipe 22. The outlet of the vertical pipe 22 is connected to a gas storage tank via a conduit.

[0025] The vertical pipe 22 has seven air outlets. From bottom to top, the seven air outlets on the vertical pipe 22 are respectively equipped with a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, and a seventh valve. The seven air outlets are respectively connected to seven gas storage tanks through seven conduits. Specifically, the seven air outlets on the vertical pipe 22 are respectively connected to the first air outlet pipe 8, the second air outlet pipe 9, the third air outlet pipe 10, the fourth air outlet pipe 11, the fifth air outlet pipe 12, the sixth air outlet pipe 13, and the seventh air outlet pipe 14.

[0026] The ends of the first vent pipe 8, the second vent pipe 9, the third vent pipe 10, the fourth vent pipe 11, the fifth vent pipe 12, the sixth vent pipe 13, and the seventh vent pipe 14 are respectively connected to the first storage tank 15, the second storage tank 16, the third storage tank 17, the fourth storage tank 18, the fifth storage tank 19, the sixth storage tank 20, and the seventh storage tank 21; the first storage tank 15, the second storage tank 16, the third storage tank 17, the fourth storage tank 18, the fifth storage tank 19, the sixth storage tank 20, and the seventh storage tank 21 are respectively used to store methane, nitrogen trifluoride, carbon dioxide, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons, and perfluorocarbons.

[0027] In practical use, the refrigeration unit cools the carbon-neutralized exhaust gas in the gas storage 7 to below -161.5°C, causing perfluorocarbons, hydrofluorocarbons, sulfur hexafluoride, nitrous oxide, carbon dioxide, nitrogen trifluoride, and methane to all become liquids.

[0028] The temperature is controlled between -129℃ and -161.5℃ to convert liquid methane into gaseous state. The first valve is then opened to allow gaseous methane to enter the first storage tank 15.

[0029] The temperature is controlled between -129℃ and -88.5℃ to convert liquid nitrogen trifluoride into gaseous state. The second valve is then opened to allow gaseous nitrogen trifluoride to enter the second storage tank 16.

[0030] The temperature is controlled between -88.5℃ and -78.5℃ to convert liquid nitrous oxide into gaseous state. The third valve is then opened to allow gaseous nitrous oxide to enter the third storage tank 17.

[0031] The temperature is controlled between -78.5℃ and -63.8℃, so that the liquid carbon dioxide is converted into gaseous state. The fourth valve is opened to allow the gaseous carbon dioxide to enter the fourth storage tank 18.

[0032] The temperature is controlled between -63.8℃ and -42.1℃ to convert liquid sulfur hexafluoride into gaseous state. The fifth valve is then opened to allow gaseous sulfur hexafluoride to enter the fifth storage tank 19.

[0033] The temperature is controlled between -42.1℃ and 29℃ to convert the liquid hydrofluorocarbons into gaseous state. The sixth valve is then opened to allow the gaseous hydrofluorocarbons to enter the sixth storage tank 20.

[0034] The temperature is controlled above 29°C to convert the liquid perfluorocarbon compound into a gaseous state. The seventh valve is then opened to allow the gaseous perfluorocarbon compound to enter the seventh storage tank 21.

[0035] Example 2:

[0036] See attached document Figure 3Unlike Embodiment 1, the first air outlet pipe 8, the second air outlet pipe 9, the third air outlet pipe 10, the fourth air outlet pipe 11, the fifth air outlet pipe 12, the sixth air outlet pipe 13 and the seventh air outlet pipe 14 are respectively equipped with a first air pump, a second air pump, a third air pump, a fourth air pump, a fifth air pump, a sixth air pump and a seventh air pump.

[0037] In practical use, the first, second, third, fourth, fifth, sixth, and seventh pumps remove the various vaporized gases, thus making the vaporized gases cleaner and enabling a more thorough separation of perfluorocarbons, hydrofluorocarbons, sulfur hexafluoride, nitrous oxide, carbon dioxide, nitrogen trifluoride, and methane.

[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A waste gas recovery and utilization device for carbon neutralization, characterized in that: It includes a refrigeration unit, which is connected to a gas storage unit (7) via a conduit. The outlet of the gas storage unit (7) is connected to a vertical pipe (22), and the outlet of the vertical pipe (22) is connected to a gas storage tank via a conduit.

2. The waste gas recovery and utilization device for carbon neutralization according to claim 1, characterized in that, The vertical pipe (22) has seven gas outlets, and the seven gas outlets are connected to seven gas storage tanks through seven conduits.

3. The waste gas recovery and utilization device for carbon neutralization according to claim 1, characterized in that, The seven air outlets on the vertical pipe (22) are respectively connected to the first air outlet pipe (8), the second air outlet pipe (9), the third air outlet pipe (10), the fourth air outlet pipe (11), the fifth air outlet pipe (12), the sixth air outlet pipe (13) and the seventh air outlet pipe (14); The ends of the first vent pipe (8), the second vent pipe (9), the third vent pipe (10), the fourth vent pipe (11), the fifth vent pipe (12), the sixth vent pipe (13), and the seventh vent pipe (14) are respectively connected to the first storage tank (15), the second storage tank (16), the third storage tank (17), the fourth storage tank (18), the fifth storage tank (19), the sixth storage tank (20), and the seventh storage tank (21).

4. The waste gas recovery and utilization device for carbon neutralization according to claim 3, characterized in that, The first storage tank (15), the second storage tank (16), the third storage tank (17), the fourth storage tank (18), the fifth storage tank (19), the sixth storage tank (20), and the seventh storage tank (21) are respectively used to store methane, nitrogen trifluoride, carbon dioxide, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons and perfluorocarbons.

5. A waste gas recovery and utilization device for carbon neutralization according to claim 2, 3, or 4, characterized in that, The vertical pipe (22) has seven air outlets from bottom to top, each equipped with a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, and a seventh valve.

6. The waste gas recovery and utilization device for carbon neutralization according to claim 1, characterized in that, The first air outlet (8), the second air outlet (9), the third air outlet (10), the fourth air outlet (11), the fifth air outlet (12), the sixth air outlet (13), and the seventh air outlet (14) are respectively equipped with a first air pump, a second air pump, a third air pump, a fourth air pump, a fifth air pump, a sixth air pump, and a seventh air pump.

7. A waste gas recovery and utilization device for carbon neutralization according to claim 1, characterized in that, The refrigeration unit is configured as a pulse tube refrigeration unit; The pulse tube refrigerator includes a compressor (1), the compressor (1) is connected to a regenerator (2) via a conduit, the regenerator (2) is connected to a cold end heat exchanger (5) of the pulse tube (3) via a conduit, the hot end heat exchanger (4) of the pulse tube (3) is connected to a gas reservoir (7) via a conduit, and a small orifice valve (6) is installed on the conduit connecting the gas reservoir (7) and the hot end heat exchanger (4) of the pulse tube (3).

Images