A circulating green hydrogen compressor unit oil gas recovery device

Abstract

The utility model relates to oil gas recovery technical field especially a kind of circulating green hydrogen compressor unit oil gas recovery device, it includes tank body, the inside of the tank body is provided with liquid storage chamber and mixing chamber from top to bottom, the inside of the liquid storage chamber is provided with liquid containing sulfur removal agent, the upper end in the tank body is provided with mixing spray structure, cooling pipe is fixed in the tank body, the cooling pipe is located in the inside of mixing chamber, oil gas discharged by circulating green hydrogen compressor unit enters cooling pipe in the liquid containing sulfur removal agent inside by recovery pipe, to carry out rapid cooling to cooling pipe inside high-temperature oil gas, oil liquid flows to the lower end of water outlet pipe with helical cooling pipe after cooling, is discharged, collected by oil outlet pipe, gas is discharged by gas outlet pipe, enters the liquid containing sulfur removal agent, the sulfur-containing matter and impurities in gas are handled, avoid gas emission over standard.

Description

Technical Field

[0001] This utility model relates to an oil and gas recovery device, and more particularly to an oil and gas recovery device for a circulating green hydrogen compressor unit, belonging to the field of oil and gas recovery technology. Background Technology

[0002] The circulating hydrogen compressor is one of the essential pieces of equipment in existing hydrogen refueling technology. It increases the hydrogen pressure to the required level and then sends it to the hydrogen refueling equipment to provide the required circulating hydrogen.

[0003] In the existing technology of circulating green hydrogen compressor units, some use oil-lubricated compressors as core components. This is because oil-lubricated compressor technology is extremely mature, easy to maintain, can withstand harsh working conditions and continuous heavy-load operation, and can easily achieve very large flow rates and extremely high outlet pressures, which has obvious advantages in certain specific industrial scenarios.

[0004] These circulating green hydrogen compressor units typically employ reciprocating piston or screw compressors. In these compressors, lubricating oil directly contacts and mixes with the compressed gas, forming oil mist and oil vapor. However, since the medium processed by this compressor unit is hydrogen gas, which is produced through water electrolysis and is inherently highly pure, any oil contamination is unacceptable and poses extremely serious safety hazards.

[0005] Therefore, all circulating green hydrogen compressor units are equipped with a back-end system, which is typically a multi-stage, interconnected purification system designed to remove different forms of oil contaminants from the hydrogen medium. The high-efficiency oil-gas separator in this back-end system serves as the primary purification mechanism, removing the vast majority of oil and gas from the hydrogen medium. The treated oil and gas is then discharged for further processing. However, the oil and gas discharged from this system is relatively hot, making oil recovery difficult, and the discharged gas contains a significant amount of sulfur and impurities, which would cause environmental pollution if directly emitted. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an oil and gas recovery device for a circulating green hydrogen compressor unit that facilitates the recovery and treatment of oil and exhaust gases.

[0007] The technical solution adopted by this application to solve the above-mentioned technical problems is as follows: A circulating green hydrogen compressor unit oil and gas recovery device includes a tank. The tank has a liquid storage chamber and a mixing chamber arranged from top to bottom. The liquid storage chamber contains a liquid containing a desulfurizing agent. A mixing spray structure is provided at the upper end of the tank. A cooling pipe is fixed inside the tank and located inside the mixing chamber. The cooling pipe is spiral-shaped. One end of the cooling pipe extends to the outside of the tank and is connected to a recovery pipe. The other end of the cooling pipe is connected to a gas outlet pipe. The upper end of the gas outlet pipe is inverted L-shaped, with its opening facing downwards and located inside the liquid containing the desulfurizing agent. The lower end of the gas outlet pipe is connected to an oil outlet pipe, which extends to the outside of the tank and is connected to a collection pipe via threads.

[0008] Preferably, an exhaust pipe is provided at the upper end of the mixing chamber, an inlet pipe is provided at the upper end of the tank body and is connected to the liquid storage chamber, and a water outlet pipe is installed at the lower end of one side of the tank body and is connected to the mixing chamber.

[0009] Preferably, the mixing spray structure includes a driver, which is fixedly installed in the middle of the upper end of the tank. A rotating shaft is rotatably installed inside the liquid storage chamber. The upper end of the rotating shaft is connected to the driver for transmission. Stirring rods are provided on both sides of the rotating shaft.

[0010] Preferably, a liquid collection plate is rotatably installed at the upper end of the mixing chamber, the upper end of the liquid collection plate is fixedly connected to the lower end of the rotating shaft, and spray pipes are fixedly installed on both sides of the liquid collection plate, with liquid outlet holes evenly opened at the lower end of the spray pipes.

[0011] Preferably, a rotating ring is rotatably installed inside the mixing chamber, and the rotating ring is fixedly connected to one end of the spray pipe. A connecting water pipe is rotatably installed at the lower end of the water collecting pipe, and one end of the connecting water pipe extends into the interior of the liquid storage chamber and is equipped with a water pump.

[0012] Preferably, a sealing ring is installed at the lower end of the oil outlet pipe, and a fixing sleeve is installed at the lower end of the oil outlet pipe. The fixing sleeve is located above the sealing ring, and fixing blocks are fixedly installed on both sides of the fixing sleeve.

[0013] Preferably, a sealing rod is movably inserted into the lower end of the fixed sleeve, a sealing block is fixedly installed at the lower end of the sealing rod, the sealing block cooperates with the sealing ring, a movable block is fixedly installed at the upper end of the sealing rod, and a return spring connected to the movable block is sleeved on the surface of the sealing rod.

[0014] Preferably, a mounting bracket is fixedly installed at the upper end of the inside of the collection tube, and a pin is fixedly installed at the upper end of the mounting bracket. The upper end of the pin passes through the sealing ring and fits against the sealing block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In the application, the oil and gas discharged from the circulating green hydrogen compressor unit enters the cooling pipe containing desulfurizing agent liquid through the recovery pipe to quickly cool down the high temperature oil and gas inside the cooling pipe. After cooling, the oil flows with the spiral cooling pipe to the lower end of the water outlet pipe, and is discharged and collected through the oil outlet pipe. The gas is discharged through the gas outlet pipe and enters the liquid containing desulfurizing agent to treat the sulfur and impurities in the gas and prevent the gas from exceeding the emission standard. 2. In the utility model, the desulfurizing agent and water are transported into the storage chamber through the feed pipe. The driver drives the rotating shaft to rotate, and the water and desulfurizing agent are fully mixed by the stirring rod. The mixed liquid enters the collection pan through the water pump and the connecting water pipe and is sprayed out through the spray pipe to spray and mix the gas inside the mixing tank. When the rotating shaft rotates, it drives the water collection cylinder and the spray pipe to rotate, thereby improving the spray mixing effect and the gas treatment effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the device structure of this utility model; Figure 2 This is a schematic diagram of a half-section of the present invention; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This utility model Figure 2 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the cooling pipe installation location of this utility model.

[0017] In the diagram, 1. Tank; 2. Driver; 3. Feed pipe; 4. Connecting water pipe; 5. Recovery pipe; 6. Mixing chamber; 7. Storage chamber; 8. Water pump; 9. Rotating shaft; 10. Stirring rod; 11. Rotating ring; 12. Spray pipe; 13. Cooling pipe; 14. Air outlet pipe; 15. Water outlet pipe; 16. Collection pipe; 17. Oil outlet pipe; 18. Sealing ring; 19. Fixing sleeve; 20. Sealing rod; 21. Sealing block; 22. Return spring; 23. Mounting bracket; 24. Ejector pin; 25. Collection tray. Detailed Implementation

[0018] The technical solution of this utility model will be further described in a non-limiting manner below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1 , Figure 2 and Figure 5As shown in the figure, this embodiment provides an oil and gas recovery device for a circulating green hydrogen compressor unit, which includes a tank 1. The tank 1 has a liquid storage chamber 7 and a mixing chamber 6 arranged from top to bottom inside. An exhaust pipe is provided at the upper end of the mixing chamber 6. The liquid storage chamber 7 contains a liquid containing a desulfurizing agent. A mixing spray structure is provided at the upper end of the tank 1. A spiral cooling pipe 13 is fixed inside the tank 1, located inside the mixing chamber 6. One end of the cooling pipe 13 extends to the outside of the tank 1 and is equipped with a recovery device. Pipe 5, the other end of cooling pipe 13 is equipped with an exhaust pipe 14. The upper end of exhaust pipe 14 is inverted L-shaped. The upper end of exhaust pipe 14 opens downward and is located inside the liquid containing desulfurizing agent. The lower end of exhaust pipe 14 is connected to an oil outlet pipe 17. The lower end of oil outlet pipe 17 extends to the outside of tank body 1 and is connected to a collection pipe 16 by thread. The upper end of tank body 1 is provided with an inlet pipe 3 connected to the liquid storage chamber 7. The lower end of one side of tank body 1 is equipped with a water outlet pipe 15 connected to the mixing chamber 6.

[0020] In this embodiment, the oil and gas discharged from the circulating green hydrogen compressor unit enters the interior of the cooling pipe 13 through the recovery pipe 5. The cooling pipe 13 is located inside the liquid containing the desulfurizing agent to quickly cool the oil and gas inside the cooling pipe 13. After cooling, the oil flows with the spiral cooling pipe 13 to the lower end of the water outlet pipe 15 and is discharged and collected through the oil outlet pipe 17. The gas is discharged through the gas outlet pipe 14 and enters the interior of the liquid containing the desulfurizing agent, which facilitates the treatment of sulfur-containing substances and impurities in the gas and avoids environmental pollution.

[0021] like Figure 2 and Figure 4 As shown, the mixing spray structure includes a driver 2, which is fixedly installed in the middle of the upper end of the tank 1. A rotating shaft 9, whose upper end is connected to the driver 2, is rotatably installed inside the liquid storage chamber 7. Stirring rods 10 are provided on both sides of the rotating shaft 9. A liquid collection plate 25 is rotatably installed at the upper end of the mixing chamber 6. The upper end of the liquid collection plate 25 is fixedly connected to the lower end of the rotating shaft 9. Spray pipes 12 are fixedly installed on both sides of the liquid collection plate 25. Liquid outlet holes are evenly opened at the lower end of the spray pipes 12. A rotating ring 11, which is fixedly connected to one end of the spray pipe 12, is rotatably installed inside the mixing chamber 6. A connecting water pipe 4 is rotatably installed at the lower end of the water collection pipe. One end of the connecting water pipe 4 extends into the interior of the liquid storage chamber 7 and is equipped with a water pump 8.

[0022] In this embodiment, the desulfurizing agent and water enter the interior of the storage chamber 7 through the feed pipe 3. The driver 2 drives the rotating shaft 9 to rotate. The rotating shaft 9 fully mixes the water and desulfurizing agent through the stirring rod 10. The mixed liquid is transported to the collection tray 25 through the water pump 8 and the connecting water pipe 4 and sprayed out through the spray pipe 12 to spray and mix the gas inside the mixing tank. When the rotating shaft 9 rotates, it drives the water collection cylinder and the spray pipe 12 to rotate, thereby improving the spraying and mixing effect.

[0023] like Figure 2 and Figure 3 As shown, a sealing ring 18 is installed at the lower end of the oil outlet pipe 17, and a fixing sleeve 19 is installed at the lower end of the oil outlet pipe 17. The fixing sleeve 19 is located above the sealing ring 18. Fixing blocks are fixedly installed on both sides of the fixing sleeve 19. A sealing rod 20 is movably inserted through the lower end of the fixing sleeve 19. A sealing block 21 that cooperates with the sealing ring 18 is fixedly installed at the lower end of the sealing rod 20. A movable block is fixedly installed at the upper end of the sealing rod 20. A return spring 22 connected to the movable block is sleeved on the surface of the sealing rod 20. A mounting bracket 23 is fixedly installed at the upper end of the collecting pipe 16. A ejector pin 24 is fixedly installed at the upper end of the mounting bracket 23. The upper end of the ejector pin 24 passes through the sealing ring 18 and fits against the sealing block 21.

[0024] When the collection pipe 16 needs maintenance or replacement, rotate the collection pipe 16 so that it can be pulled out from the lower end of the oil outlet pipe 17. When the collection pipe 16 is pulled out from the lower end of the oil outlet pipe 17, the mounting bracket 23 drives the ejector pin 24 to move downward. The ejector pin 24 is pulled out from inside the sealing ring 18, allowing the sealing block 21 to move. Under the action of the spring force, the return spring 22 drives the movable block to move inside the fixed sleeve 19. The movable block drives the sealing block 21 to move downward, so that the sealing block 21 is engaged with the sealing ring 18, preventing the cooled oil from being discharged from the lower end of the oil outlet pipe 17 when the collection pipe 16 is replaced, thus affecting the performance.

[0025] The foregoing description illustrates and describes preferred embodiments of the present invention, but it should be understood that the present invention is not limited to the forms disclosed herein. Any modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A circulating green hydrogen compressor unit oil and gas recovery device, comprising a tank (1), characterized in that: The tank (1) has a liquid storage chamber (7) and a mixing chamber (6) arranged from top to bottom inside. The liquid storage chamber (7) contains a liquid containing desulfurizing agent. The upper end of the tank (1) is provided with a mixing spray structure. A cooling pipe (13) is fixed inside the mixing chamber (6) of the tank (1). The cooling pipe (13) is spiral and one end extends to the outside of the tank (1) and is equipped with a recovery pipe (5). The other end is equipped with an exhaust pipe (14). The upper end of the exhaust pipe (14) opens downward and is located inside the liquid containing desulfurizing agent. The lower end of the exhaust pipe (14) is connected to an oil outlet pipe (17). The lower end of the oil outlet pipe (17) extends to the outside of the tank (1) and is equipped with a collection pipe (16).

2. The oil and gas recovery device for the circulating green hydrogen compressor unit according to claim 1, characterized in that: An exhaust pipe is provided at the upper end of the mixing chamber, and an inlet pipe (3) connected to the liquid storage chamber (7) is provided at the upper end of the tank (1). A water outlet pipe (15) connected to the mixing chamber (6) is installed at the lower end of one side of the tank (1).

3. The oil and gas recovery device for the circulating green hydrogen compressor unit according to claim 1, characterized in that: The mixing spray structure includes a driver (2), which is fixedly installed in the middle of the upper end of the tank (1). A rotating shaft (9) is rotatably installed inside the liquid storage chamber (7). The upper end of the rotating shaft (9) is connected to the driver (2) for transmission. Stirring rods (10) are provided on both sides of the rotating shaft (9).

4. The oil and gas recovery device for the circulating green hydrogen compressor unit according to claim 3, characterized in that: A liquid collection plate (25) is rotatably installed at the upper end of the mixing chamber (6). The upper end of the liquid collection plate (25) is fixedly connected to the lower end of the rotating shaft (9). Spray pipes (12) are fixedly installed on both sides of the liquid collection plate (25).

5. The oil and gas recovery device for the circulating green hydrogen compressor unit according to claim 4, characterized in that: A rotating ring (11) is rotatably installed inside the mixing chamber (6). The rotating ring (11) is fixedly connected to one end of the spray pipe (12). A connecting water pipe (4) is rotatably installed at the lower end of the liquid collection plate (25). One end of the connecting water pipe (4) extends into the liquid storage chamber (7) and is equipped with a water pump (8).

6. The oil and gas recovery device for the circulating green hydrogen compressor unit according to claim 1, characterized in that: A sealing ring (18) is installed at the lower end of the oil outlet pipe (17), and a fixed sleeve (19) located above the sealing ring (18) is installed at the lower end of the oil outlet pipe (17). Fixed blocks are fixedly installed on both sides of the fixed sleeve (19).

7. The oil and gas recovery device for the circulating green hydrogen compressor unit according to claim 6, characterized in that: The lower end of the fixed sleeve (19) is movably provided with a sealing rod (20), the lower end of the sealing rod (20) is fixedly installed with a sealing block (21) that cooperates with the sealing ring (18), the upper end of the sealing rod (20) is fixedly installed with a movable block, and the surface of the sealing rod (20) is sleeved with a return spring (22) connected to the movable block.

8. The oil and gas recovery device for the circulating green hydrogen compressor unit according to claim 7, characterized in that: An installation bracket (23) is fixedly installed at the upper end of the inside of the collection tube (16). A pin (24) is fixedly installed at the upper end of the installation bracket (23). The upper end of the pin (24) passes through the sealing ring (18) and fits against the sealing block (21).

9. The oil and gas recovery device for the circulating green hydrogen compressor unit according to claim 1, characterized in that: The upper end of the air outlet pipe (14) is inverted L-shaped.

Images