Carbon technology capture liquefaction refrigeration system

Abstract

The utility model relates to a carbon technology capture liquefaction refrigeration system, a compression refrigeration system comprises a compressor and a condenser, the exhaust of the compressor is connected with the condenser, a capture system comprises a gas cooling heat exchanger and more than one cold supply pipeline group, and the cold supply pipeline group comprises a cold supply inlet pipe and a cold supply outlet pipe which are connected in the gas cooling heat exchanger. The condenser distributes cold supply inlet pipes of more than one cold supply pipeline group, first electronic expansion valves are arranged on the cold supply inlet pipes, temperature sensing bags of the electronic expansion valves are arranged on cold supply outlet pipes, and cold supply straight-through pipes with straight-through stop valves are arranged on the cold supply inlet pipes behind the first electronic expansion valves and connected with the cold supply outlet pipes. The gas cooling heat exchanger is further connected into a gas inlet pipe, a gas outlet pipe and a carbon dioxide liquid outlet pipe. The system can comprehensively utilize refrigeration energy and effectively capture carbon dioxide liquefaction in exhaust.

Description

TECHNICAL FIELD

[0001] The utility model relates to a refrigeration system, specifically to a carbon technology capture liquefied refrigeration system. BACKGROUND

[0002] When the marine vessel is operating, a large amount of carbon dioxide is generated by fuel combustion, and with the increasing environmental protection requirements of carbon emission, the carbon dioxide gas emission needs to be treated on the vessel, the traditional direct emission after cooling by seawater heat exchange is not effective for carbon capture and elimination, and does not meet the latest international environmental protection emission requirements. SUMMARY

[0003] The utility model provides a carbon technology capture liquefied refrigeration system that can effectively capture carbon dioxide in exhaust gas.

[0004] The utility model discloses a carbon technology capture liquefied refrigeration system, characterized by comprising a compression refrigeration system and a capture system, the compression refrigeration system includes a compressor, a condenser, the compressor exhaust is connected with the condenser, the capture system includes a gas cooling heat exchanger and a group of above cold supply pipeline groups, the cold supply pipeline group includes the cold supply inlet pipe and the cold supply outlet pipe connected in the gas cooling heat exchanger, the condenser sends the cold supply inlet pipe of a group of above cold supply pipeline groups, the first electronic expansion valve is arranged on the cold supply inlet pipe, the temperature sensing bag of the electronic expansion valve is arranged on the cold supply outlet pipe, the cold supply inlet pipe after the first electronic expansion valve divides out the cold supply straight pipe with the straight through stop valve and connects the cold supply outlet pipe, the gas cooling heat exchanger is also connected with the gas inlet pipe and the gas outlet pipe and the liquid outlet pipe.

[0005] A carbon technology capture liquefied refrigeration system, characterized by comprising two compression refrigeration systems and two capture systems, the compression refrigeration system includes a compressor, a condenser and a plate heat exchanger, the first compressor exhaust is connected with the condenser and is divided into two ways, one way is connected with the plate heat exchanger one process and then returns to the first compressor, the other way is connected with the second capture system, the second compressor exhaust is connected with the plate heat exchanger another process and then connected with the first capture system, the first and second capture systems all include a gas cooling heat exchanger and two cold supply pipeline groups, the cold supply pipeline group includes the cold supply inlet pipe and the cold supply outlet pipe connected in the gas cooling heat exchanger, the condenser and the plate heat exchanger respectively send the cold supply inlet pipe of the first and second cold supply pipeline groups, the first electronic expansion valve is arranged on the cold supply inlet pipe, the temperature sensing bag of the first electronic expansion valve is arranged on the cold supply outlet pipe, the cold supply inlet pipe after the first electronic expansion valve divides out the cold supply straight pipe with the straight through stop valve and connects the cold supply outlet pipe, the first gas cooling heat exchanger is also connected with the gas inlet pipe and the gas outlet pipe, the gas outlet pipe is connected with the gas inlet pipe of the second gas cooling heat exchanger, the second gas cooling heat exchanger is also provided with the gas outlet pipe and the liquid outlet pipe, and the cold supply outlet pipes of the first and second cold supply pipeline groups are connected back to the second and first compressors respectively.

[0006] Further, temperature sensors are arranged in the first and second gas cooling heat exchangers, the temperature sensors are connected to an electrical control box, the electrical control box is connected to the compressor, the first electronic expansion valve and the straight-through stop valve.

[0007] Further, one of the two paths of the condenser passes through the second electronic expansion valve, one path is connected to the plate heat exchanger, and the other path passes through the cooling supply adjusting valve and is connected to the one-process outlet pipe, the temperature sensing bag of the second electronic expansion valve is arranged after the one-process outlet pipe, and the second electronic expansion valve is connected to the electrical control box.

[0008] Further, cooling supply stop valves are arranged on the cooling supply inlet pipe and the cooling supply outlet pipe, and the cooling supply stop valves are connected to the electrical control box.

[0009] Further, the first electronic expansion valve is arranged on the cooling supply outlet pipe after the cooling supply straight-through pipe.

[0010] Further, the temperature sensing bag of the second electronic expansion valve is arranged after the one-process outlet pipe connected to the cooling supply adjusting valve.

[0011] Further, the condenser is a seawater condenser.

[0012] The utility model discloses a compression refrigeration system supplies cold source, and carbon dioxide high-temperature gas is cooled and liquefied to capture carbon in the gas cooling heat exchanger in the capture system, has good carbon capture performance, and the gas emission environmental protection performance meets the international carbon emission requirement. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is refrigeration system structure schematic drawing of the utility model.

[0014] In the drawing: electrical control box 1, first compressor 2, oil separator 3, condenser 4, dry filter 5, second compressor 6, plate heat exchanger 7, second electronic expansion valve 8, cooling supply adjusting valve 9, gas-liquid separator 10, sight glass 11, first cooling supply pipe group 12, cooling supply inlet pipe 13, cooling supply stop valve 14, first electronic expansion valve 15, cooling supply straight-through pipe 16, straight-through stop valve 17, cooling supply outlet pipe 18, first gas cooling heat exchanger 19, first inlet pipe 20, first outlet pipe 21, first outlet liquid pipe 22, second gas cooling heat exchanger 23, second inlet pipe 24, second outlet pipe 25, temperature sensor 26, second cooling supply pipe group 27. DETAILED DESCRIPTION

[0015] The following is further described with reference to the accompanying drawings.

[0016] Figure 1As shown: a carbon technology capture liquefied refrigeration system includes an electrical control box 1, a first compressor 2, an oil separator 3, a condenser 4, a drying filter 5, a second compressor 6, a plate heat exchanger 7, a second electronic expansion valve 8, a cooling regulating valve 9, a gas-liquid separator 10, a sight glass 11, a first cooling pipe group 12, a first gas cooling heat exchanger 19, a first gas inlet pipe 20, a first gas outlet pipe 21, a first liquid outlet pipe 22, a second gas cooling heat exchanger 23, a second gas inlet pipe 24, a second gas outlet pipe 25, a temperature sensor 26, a second cooling pipe group 27.

[0017] The first compressor 2 exhaust gas through the oil separator 3 to the condenser 4, the condenser 4 sends out after the drying filter 5, one way after the drying filter 5 connects the second electronic expansion valve 8, the second electronic expansion valve 8 connects the plate heat exchanger 7 one process, the plate heat exchanger 7 one process through the pipeline connects the gas-liquid separator 10 after the first compressor 2, the second electronic expansion valve 8 after the other way through the cooling regulating valve 9 connects the above pipeline, the temperature sensing package of the second electronic expansion valve 8 is arranged on the above pipeline, the other way after the drying filter 5 through the sight glass 11 connects the first cooling pipe group 12, the first cooling pipe group 12 includes cooling inlet pipe 13, cooling stop valve 14, first electronic expansion valve 15, cooling straight pipe 16, straight stop valve 17, cooling outlet pipe 18, the sight glass 11 connects the cooling inlet pipe 13, the cooling inlet pipe 13 and the cooling outlet pipe 18 are provided with cooling stop valve 14, the first electronic expansion valve 15 is further provided on the cooling inlet pipe 13, the first electronic expansion valve 15 is divided into two ways, one way through the cooling straight pipe 16 with straight stop valve 17 connects the cooling outlet pipe 18, the temperature sensing package of the first electronic expansion valve 15 is arranged on the cooling outlet pipe after the cooling straight pipe, the other connects into the pipeline in the first gas cooling heat exchanger 19 and sends out to connect the cooling outlet pipe 18, the cooling outlet pipe 18 connects back to the second compressor 6 after the gas-liquid separator, the first gas cooling heat exchanger 19 is respectively provided with the first gas inlet pipe 20, the first gas outlet pipe 21 and the first liquid outlet pipe 22.

[0018] The second compressor 6 exhaust gas through the oil separator to the plate heat exchanger 7 another process, the other way after the plate heat exchanger 7 connects the second cooling pipe group 27 through the drying filter and the sight glass, the structure of the second cooling pipe group is same with the first cooling pipe group, the cooling inlet pipe of the second cooling pipe group connects into the pipeline in the second gas cooling heat exchanger 23 and sends out to connect the cooling outlet pipe, the cooling outlet pipe of the second cooling pipe group 27 connects back to the first compressor 2 after the gas-liquid separator 10, the second gas cooling heat exchanger 23 is respectively provided with the second gas inlet pipe 24 and the second gas outlet pipe 25. The second gas inlet pipe 24 sends in the high temperature carbon dioxide gas, after heat exchange in the second gas cooling heat exchanger 23, it is sent to the first gas inlet pipe 20 through the second gas outlet pipe 25, and is liquefied in the first gas cooling heat exchanger 19. The gas is discharged through the first gas outlet pipe 21, and the liquefied carbon dioxide is collected and discharged through the first liquid outlet pipe 22.

[0019] In the embodiment, the return gas of the first compressor is combined with the return gas of the second cold supply pipe group, the return gas of the second compressor is combined with the return gas of the first cold supply pipe group, and the second electronic expansion valve before the plate heat exchanger and the first electronic expansion valve in the cold supply pipe group are adjusted, so that the compression refrigeration energy can be fully utilized.

[0020] In the embodiment, temperature sensors 26 are arranged in the first and second gas cooling heat exchangers, the temperature sensors 26 are connected to an electrical control box 1, and the electrical control box 1 is connected to the compressors, pressure gauges, electronic expansion valves and valves in the system for control.

[0021] In the embodiment, the condenser is a seawater condenser.

Claims

1. A carbon capture technology liquidification refrigeration system, characterized by: The application relates to a refrigeration system, which comprises a compression refrigeration system and a capturing system, wherein the compression refrigeration system comprises a compressor, a condenser, and the compressor exhaust is connected to the condenser; the capturing system comprises a gas cooling heat exchanger and a plurality of cooling pipe groups, each of the cooling pipe groups comprises a cooling inlet pipe and a cooling outlet pipe connected to the gas cooling heat exchanger; the condenser is connected to the cooling inlet pipes of the cooling pipe groups; a first electronic expansion valve is arranged on the cooling inlet pipe; a temperature sensing bag of the first electronic expansion valve is arranged on the cooling outlet pipe; the cooling inlet pipe after the first electronic expansion valve is connected to a cooling bypass pipe with a bypass stop valve and the cooling outlet pipe; the gas cooling heat exchanger is further connected to an air inlet pipe and an air outlet pipe and a carbon dioxide outlet pipe.

2. A carbon technology capture liquefaction refrigeration system characterized by: The application relates to a refrigeration system, which comprises a compression refrigeration system and a capturing system, wherein the compression refrigeration system comprises a compressor, a condenser, and the compressor exhaust is connected to the condenser; the capturing system comprises a gas cooling heat exchanger and a plurality of cooling pipe groups, each of the cooling pipe groups comprises a cooling inlet pipe and a cooling outlet pipe connected to the gas cooling heat exchanger; the condenser is connected to the cooling inlet pipes of the cooling pipe groups; a first electronic expansion valve is arranged on the cooling inlet pipe; a temperature sensing bag of the first electronic expansion valve is arranged on the cooling outlet pipe; the cooling inlet pipe after the first electronic expansion valve is connected to a cooling bypass pipe with a bypass stop valve and the cooling outlet pipe; the gas cooling heat exchanger is further connected to an air inlet pipe and an air outlet pipe and a carbon dioxide outlet pipe.

3. A carbon technology capture liquefaction refrigeration system according to claim 2, wherein: The application relates to a refrigeration system, which comprises a compression refrigeration system and a capturing system, wherein the compression refrigeration system comprises a compressor, a condenser, and the compressor exhaust is connected to the condenser; the capturing system comprises a gas cooling heat exchanger and a plurality of cooling pipe groups, each of the cooling pipe groups comprises a cooling inlet pipe and a cooling outlet pipe connected to the gas cooling heat exchanger; the condenser is connected to the cooling inlet pipes of the cooling pipe groups; a first electronic expansion valve is arranged on the cooling inlet pipe; a temperature sensing bag of the first electronic expansion valve is arranged on the cooling outlet pipe; the cooling inlet pipe after the first electronic expansion valve is connected to a cooling bypass pipe with a bypass stop valve and the cooling outlet pipe; the gas cooling heat exchanger is further connected to an air inlet pipe and an air outlet pipe and a carbon dioxide outlet pipe.

4. A carbon technology capture liquefaction refrigeration system according to claim 2, wherein: The application relates to a refrigeration system, which comprises a compression refrigeration system and a capturing system, wherein the compression refrigeration system comprises a compressor, a condenser, and the compressor exhaust is connected to the condenser; the capturing system comprises a gas cooling heat exchanger and a plurality of cooling pipe groups, each of the cooling pipe groups comprises a cooling inlet pipe and a cooling outlet pipe connected to the gas cooling heat exchanger; the condenser is connected to the cooling inlet pipes of the cooling pipe groups; a first electronic expansion valve is arranged on the cooling inlet pipe; a temperature sensing bag of the first electronic expansion valve is arranged on the cooling outlet pipe; the cooling inlet pipe after the first electronic expansion valve is connected to a cooling bypass pipe with a bypass stop valve and the cooling outlet pipe; the gas cooling heat exchanger is further connected to an air inlet pipe and an air outlet pipe and a carbon dioxide outlet pipe.

5. A carbon technology capture liquefaction refrigeration system according to claim 1 or 2, wherein: The application relates to a refrigeration system, which comprises a compression refrigeration system and a capturing system, wherein the compression refrigeration system comprises a compressor, a condenser, and the compressor exhaust is connected to the condenser; the capturing system comprises a gas cooling heat exchanger and a plurality of cooling pipe groups, each of the cooling pipe groups comprises a cooling inlet pipe and a cooling outlet pipe connected to the gas cooling heat exchanger; the condenser is connected to the cooling inlet pipes of the cooling pipe groups; a first electronic expansion valve is arranged on the cooling inlet pipe; a temperature sensing bag of the first electronic expansion valve is arranged on the cooling outlet pipe; the cooling inlet pipe after the first electronic expansion valve is connected to a cooling bypass pipe with a bypass stop valve and the cooling outlet pipe; the gas cooling heat exchanger is further connected to an air inlet pipe and an air outlet pipe and a carbon dioxide outlet pipe.

6. A carbon technology capture liquefaction refrigeration system according to claim 1 or 2, wherein: The application relates to a refrigeration system, which comprises a compression refrigeration system and a capturing system, wherein the compression refrigeration system comprises a compressor, a condenser, and the compressor exhaust is connected to the condenser; the capturing system comprises a gas cooling heat exchanger and a plurality of cooling pipe groups, each of the cooling pipe groups comprises a cooling inlet pipe and a cooling outlet pipe connected to the gas cooling heat exchanger; the condenser is connected to the cooling inlet pipes of the cooling pipe groups; a first electronic expansion valve is arranged on the cooling inlet pipe; a temperature sensing bag of the first electronic expansion valve is arranged on the cooling outlet pipe; the cooling inlet pipe after the first electronic expansion valve is connected to a cooling bypass pipe with a bypass stop valve and the cooling outlet pipe; the gas cooling heat exchanger is further connected to an air inlet pipe and an air outlet pipe and a carbon dioxide outlet pipe.

7. A carbon technology capture liquefaction refrigeration system according to claim 4, wherein: The application relates to a refrigeration system, which comprises a compression refrigeration system and a capturing system, wherein the compression refrigeration system comprises a compressor, a condenser, and the compressor exhaust is connected to the condenser; the capturing system comprises a gas cooling heat exchanger and a plurality of cooling pipe groups, each of the cooling pipe groups comprises a cooling inlet pipe and a cooling outlet pipe connected to the gas cooling heat exchanger; the condenser is connected to the cooling inlet pipes of the cooling pipe groups; a first electronic expansion valve is arranged on the cooling inlet pipe; a temperature sensing bag of the first electronic expansion valve is arranged on the cooling outlet pipe; the cooling inlet pipe after the first electronic expansion valve is connected to a cooling bypass pipe with a bypass stop valve and the cooling outlet pipe; the gas cooling heat exchanger is further connected to an air inlet pipe and an air outlet pipe and a carbon dioxide outlet pipe.

8. A carbon technology capture liquefaction refrigeration system according to claim 1 or 2, wherein: ​

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