Vertical reciprocating compressor separation recycling system

Abstract

The utility model discloses a vertical reciprocating compressor separation recycling system, including compressor casing, the inner bottom surface of compressor casing is connected with the oil tank, the inner wall of compressor casing is connected with the crankshaft, and the crankshaft sets up the top of oil tank, and one end of crankshaft is connected with power component, and the inner top surface of compressor casing is connected with the cylinder, and the piston is connected in the cylinder, and the piston rod of piston is connected with the crankshaft through the cross head, and the inner wall of compressor casing is connected with the isolation chamber, and the isolation chamber sets up the below of cylinder, and the isolation chamber is connected with recovery component, and recovery component passes through the lateral wall of compressor casing and is connected with separation system, and separation system is connected with oil tank and cylinder. The utility model separates process gas and lubricating oil, and process gas is recycled and returns to the compressor primary inlet and is repeatedly used, and the partial pressure of isolation chamber is controlled, and the loss of packing seal is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of chemical production auxiliary systems, specifically relating to a vertical reciprocating compressor separation and recycling system. Background Technology

[0002] In modern chemical production systems, compressors, as core equipment for pressure control, play a crucial role in maintaining pressure balance in polymerization reactions and ensuring process continuity. Vertical reciprocating compressors, with their compact structure, high operational stability, and adaptability to high-pressure conditions, are widely used in the gas-phase compression stages of polymerization systems for ammonia synthesis, methanol, and olefins. However, problems such as packing seal leakage and axial liquid carryover, exposed in actual operation, have become significant hidden dangers restricting the long-term stable operation of the unit.

[0003] The piston rod and stuffing box dynamic sealing structure of a vertical reciprocating compressor are prone to gap widening due to wear, thermal deformation, or media corrosion during long-term, high-frequency reciprocating motion. For polymerization systems conveying flammable, explosive, or highly toxic media such as hydrogen, ammonia, and hydrocarbons, the compressor's media leakage rate exceeding 0.5% due to packing failure not only results in annual raw material losses exceeding one million yuan per unit but also causes a decrease in the unit's load rate of more than 12% due to frequent shutdowns for maintenance.

[0004] The inherent vertical piston motion characteristics of the vertical structure make the unit extremely sensitive to liquid components entrained in the gaseous medium. When the crankcase lubricating oil mixes with the process medium, it forms an oil mist in the crankcase. The gas phase carries the lubricating oil into the compressor body, causing a gradual decrease in crankcase lubricating oil, resulting in insufficient crankshaft lubrication and subsequent wear of the crankshaft bearings. The lubricating oil in the compressor body gradually forms a liquid phase, causing a decrease in the gas phase partial pressure in the compressor body. Lubricating oil droplets entrained in the gas phase also enter the cylinder, causing uneven wear and liquid carryover in the cylinder, ultimately leading to compressor failure. Utility Model Content

[0005] The purpose of this invention is to provide a separation and recycling system for a vertical reciprocating compressor, which solves the problem of crankshaft bearing wear caused by media leakage in the prior art.

[0006] The technical solution adopted in this utility model is a vertical reciprocating compressor separation and recycling system, including a compressor housing, an oil tank connected to the inner bottom surface of the compressor housing, a crankshaft connected to the inner wall of the compressor housing, the crankshaft being positioned above the oil tank, a power component connected to one end of the crankshaft, a cylinder connected to the inner top surface of the compressor housing, a piston connected inside the cylinder, the piston rod being connected to the crankshaft via a crosshead, an isolation chamber connected to the inner wall of the compressor housing, the isolation chamber being positioned below the cylinder, a recycling component connected to the isolation chamber, and a separation system connected to the separation system through the side wall of the compressor housing, the separation system being connected to the oil tank.

[0007] The feature of this utility model is that, The power assembly includes a flywheel, one end of the crankshaft passes through the side wall of the compressor housing and is connected to the flywheel, a mechanical seal is connected to the connection point of the crankshaft passing through the side wall of the compressor housing, and the other end of the crankshaft passes through the side wall of the compressor housing and is connected to a shaft pump.

[0008] The crosshead is connected to the inner wall of the compressor housing via a crosshead clamp.

[0009] The piston rod passes through the bottom of the isolation chamber, and a guide bearing is connected at the connection point between the piston rod and the isolation chamber. The piston rod passes through the guide bearing.

[0010] The recovery assembly includes an oil recovery pipe that is connected to the bottom of the isolation chamber, with one end of the oil recovery pipe passing through the side wall of the compressor housing and connecting to the separation system. It also includes a leakage recovery pipe, which is connected to the piston rod of the piston through the connection point on the outer wall of the cylinder. One end of the leakage recovery pipe passes through the side wall of the compressor housing and is connected to the separation system.

[0011] The separation system includes a suspension separator, a filter connected inside the suspension separator, an oil collection pipe connected to the suspension separator, an oil delivery pipe connected to the bottom of the suspension separator, an end of the oil delivery pipe away from the suspension separator connected to an oil tank, an air delivery pipe connected to the top of the suspension separator, and a leak recovery pipe connected to the body of the air delivery pipe.

[0012] The suspension separator is connected to a differential pressure gauge and a level gauge. The differential pressure gauge is located near the filter, and the level gauge is located near the bottom of the suspension separator. The oil supply pipe is connected to a third valve, the gas supply pipe is connected to a second valve, the gas leakage recovery pipe is connected to a first valve, which is located near the connection point between the gas leakage recovery pipe and the gas supply pipe, and the oil collection pipe is connected to a fourth valve. A pressure control gauge is connected between the fourth valve and the isolation chamber.

[0013] The piston is connected to a valve, and the top of the piston is connected to a piston cylinder head.

[0014] The beneficial effects of this utility model are: This utility model relates to a vertical reciprocating compressor separation and recovery system that separates process gas and lubricating oil. The process gas is recovered and returned to the compressor's primary inlet for reuse, controlling the partial pressure in the isolation chamber and reducing packing seal wear. Lubricating oil is collected centrally and promptly discharged to the crankcase for recycling. This solves the current problems of low unit efficiency and large packing seal leakage caused by process gas leakage; it also addresses insufficient lubrication due to lubricating oil deficiency and frequent valve damage and shutdowns caused by liquid in the isolation chamber and cylinders, thus reducing the unit's maintenance frequency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the vertical reciprocating compressor separation and recycling system of this utility model.

[0016] In the diagram, 1. Piston, 2. Leakage recovery pipe, 3. Isolation chamber, 4. Compressor housing, 5. Oil collection box, 6. Crosshead jacket, 7. Flywheel, 8. Mechanical seal ring, 9. Piston cylinder head, 10. Air valve, 11. Cylinder, 12. Guide bearing, 13. Crosshead, 14. Crankshaft, 15. Shaft pump, 16. Oil tank, 17. Oil collection pipe, 18. Suspension separator, 19. Differential pressure gauge, 20. Filter, 21. Level gauge, 22. First valve, 23. Second valve, 24. Third valve, 25. Fourth valve, 26. Pressure control gauge, 27. Gas supply pipe, 28. Oil supply pipe. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0018] This utility model relates to a vertical reciprocating compressor separation and recycling system, such as... Figure 1 As shown, the compressor includes a compressor housing 4, an oil tank 16 connected to the inner bottom surface of the compressor housing 4, a crankshaft 14 connected to the inner wall of the compressor housing 4, the crankshaft 14 being positioned above the oil tank 16, a power assembly connected to one end of the crankshaft 14, a cylinder 11 connected to the inner top surface of the compressor housing 4, a piston 1 connected inside the cylinder 11, the piston rod of the piston 1 being connected to the crankshaft 14 via a crosshead 13, an isolation chamber 3 connected to the inner wall of the compressor housing 4, the isolation chamber 3 being positioned below the cylinder 11, a recovery assembly connected to the isolation chamber 3, the recovery assembly being connected to a separation system through the side wall of the compressor housing 4, and the separation system being connected to the oil tank 16. The power unit drives the piston rod of piston 1 to perform linear reciprocating motion through crankshaft 14, and crankshaft 14 performs circular motion. The piston rod can perform linear motion through crosshead 13. The oil-gas mixture leaking in the isolation chamber 3 is recovered by the recovery component and flows into the separation system for separation. The clean process gas medium after separation is recovered to the first stage inlet of the compressor. The lubricating oil after separation flows into the oil tank 16 (crankcase) to achieve the purpose of recycling.

[0019] Example 1 A vertical reciprocating compressor separation and recycling system includes a compressor housing 4, an oil tank 16 connected to the inner bottom surface of the compressor housing 4, a crankshaft 14 connected to the inner wall of the compressor housing 4, the crankshaft 14 being positioned above the oil tank 16, a power assembly connected to one end of the crankshaft 14, a cylinder 11 connected to the inner top surface of the compressor housing 4, a piston 1 connected inside the cylinder 11, the piston rod of the piston 1 being connected to the crankshaft 14 via a crosshead 13, an isolation chamber 3 connected to the inner wall of the compressor housing 4, the isolation chamber 3 being positioned below the cylinder 11, a recycling assembly connected to the isolation chamber 3, and a separation system connected to the separation assembly passing through the side wall of the compressor housing 4, the separation system being connected to the oil tank 16.

[0020] The power assembly includes a flywheel 7. One end of the crankshaft 14 passes through the side wall of the compressor housing 4 and is connected to the flywheel 7. A mechanical seal 8 is connected to the connection point of the crankshaft 14 through the side wall of the compressor housing 4. The other end of the crankshaft 14 passes through the side wall of the compressor housing 4 and is connected to a shaft pump 15. The mechanical seal 8 seals the connection point between the compressor housing 4 and the crankshaft 14 to prevent lubricating oil leakage from the oil tank 16. The flywheel 7 is connected to a motor, which drives the crankshaft 14 to perform circular motion through the flywheel 7. The shaft pump 15, along with the movement of the crankshaft 14, is connected to an external pipe to add lubricating oil to the oil tank 16.

[0021] The crosshead 13 is connected to the inner wall of the compressor housing 4 via the crosshead clamp 6. The crosshead 13 is fixed by the crosshead clamp 6.

[0022] Example 2 A vertical reciprocating compressor separation and recycling system includes a compressor housing 4, an oil tank 16 connected to the inner bottom surface of the compressor housing 4, a crankshaft 14 connected to the inner wall of the compressor housing 4, the crankshaft 14 being positioned above the oil tank 16, a power assembly connected to one end of the crankshaft 14, a cylinder 11 connected to the inner top surface of the compressor housing 4, a piston 1 connected inside the cylinder 11, the piston rod of the piston 1 being connected to the crankshaft 14 via a crosshead 13, an isolation chamber 3 connected to the inner wall of the compressor housing 4, the isolation chamber 3 being positioned below the cylinder 11, a recycling assembly connected to the isolation chamber 3, and a separation system connected to the separation assembly passing through the side wall of the compressor housing 4, the separation system being connected to the oil tank 16.

[0023] The power assembly includes a flywheel 7, one end of a crankshaft 14 passes through the side wall of the compressor housing 4 and is connected to the flywheel 7, a mechanical seal ring 8 is connected to the connection point of the crankshaft 14 passing through the side wall of the compressor housing 4, and a shaft pump 15 is connected to the other end of the crankshaft 14 passing through the side wall of the compressor housing 4.

[0024] The crosshead 13 is connected to the inner wall of the compressor housing 4 via the crosshead clamp 6.

[0025] The piston rod of piston 1 passes through the bottom of the isolation chamber 3. A guide bearing 12 is connected at the connection point between the piston rod of piston 1 and the isolation chamber 3, and the piston rod of piston 1 passes through the guide bearing 12. The guide bearing 12 guides the piston rod of piston 1. An oil collection box 5 is connected to the guide bearing 12 through a pipeline, and a small amount of lubricating oil leaking from the guide bearing 12 enters the oil collection box 5.

[0026] Example 3 A vertical reciprocating compressor separation and recycling system includes a compressor housing 4, an oil tank 16 connected to the inner bottom surface of the compressor housing 4, a crankshaft 14 connected to the inner wall of the compressor housing 4, the crankshaft 14 being positioned above the oil tank 16, a power assembly connected to one end of the crankshaft 14, a cylinder 11 connected to the inner top surface of the compressor housing 4, a piston 1 connected inside the cylinder 11, the piston rod of the piston 1 being connected to the crankshaft 14 via a crosshead 13, an isolation chamber 3 connected to the inner wall of the compressor housing 4, the isolation chamber 3 being positioned below the cylinder 11, a recycling assembly connected to the isolation chamber 3, and a separation system connected to the separation assembly passing through the side wall of the compressor housing 4, the separation system being connected to the oil tank 16.

[0027] The power assembly includes a flywheel 7, one end of a crankshaft 14 passes through the side wall of the compressor housing 4 and is connected to the flywheel 7, a mechanical seal ring 8 is connected to the connection point of the crankshaft 14 passing through the side wall of the compressor housing 4, and a shaft pump 15 is connected to the other end of the crankshaft 14 passing through the side wall of the compressor housing 4.

[0028] The crosshead 13 is connected to the inner wall of the compressor housing 4 via the crosshead clamp 6.

[0029] The piston rod of piston 1 passes through the bottom of the isolation chamber 3. A guide bearing 12 is connected at the connection point between the piston rod of piston 1 and the isolation chamber 3. The piston rod of piston 1 passes through the guide bearing 12.

[0030] The recovery assembly includes an oil collection pipe 17, which is connected to the bottom of the isolation chamber 3. One end of the oil collection pipe 17 passes through the side wall of the compressor housing 4 and connects to the separation system. It also includes a leakage recovery pipe 2, which is connected to the piston rod of the piston 1 at the connection point through the outer wall of the cylinder 11. One end of the leakage recovery pipe 2 passes through the side wall of the compressor housing 4 and connects to the separation system. The oil collection pipe 17 is connected to the isolation chamber via multiple branch pipes to collect leaked oil-gas mixture and discharge it into the separation system. The leakage recovery pipe 2 is connected via branch pipes to the connection point where the piston rod of the piston 1 passes through the outer wall of the cylinder 11. Leaked process gas from the cylinder 11 is recovered via the leakage recovery pipe 2, merges with the process gas separated by the separation system, and then enters the first-stage inlet of the compressor.

[0031] Example 4 A vertical reciprocating compressor separation and recycling system includes a compressor housing 4, an oil tank 16 connected to the inner bottom surface of the compressor housing 4, a crankshaft 14 connected to the inner wall of the compressor housing 4, the crankshaft 14 being positioned above the oil tank 16, a power assembly connected to one end of the crankshaft 14, a cylinder 11 connected to the inner top surface of the compressor housing 4, a piston 1 connected inside the cylinder 11, the piston rod of the piston 1 being connected to the crankshaft 14 via a crosshead 13, an isolation chamber 3 connected to the inner wall of the compressor housing 4, the isolation chamber 3 being positioned below the cylinder 11, a recycling assembly connected to the isolation chamber 3, and a separation system connected to the separation assembly passing through the side wall of the compressor housing 4, the separation system being connected to the oil tank 16.

[0032] The power assembly includes a flywheel 7, one end of a crankshaft 14 passes through the side wall of the compressor housing 4 and is connected to the flywheel 7, a mechanical seal ring 8 is connected to the connection point of the crankshaft 14 passing through the side wall of the compressor housing 4, and a shaft pump 15 is connected to the other end of the crankshaft 14 passing through the side wall of the compressor housing 4.

[0033] The crosshead 13 is connected to the inner wall of the compressor housing 4 via the crosshead clamp 6.

[0034] The piston rod of piston 1 passes through the bottom of the isolation chamber 3. A guide bearing 12 is connected at the connection point between the piston rod of piston 1 and the isolation chamber 3. The piston rod of piston 1 passes through the guide bearing 12.

[0035] The recovery assembly includes an oil recovery pipe 17, which is connected to the bottom of the isolation chamber 3. One end of the oil recovery pipe 17 passes through the side wall of the compressor housing 4 and is connected to the separation system. It also includes a leakage recovery pipe 2, which is connected to the piston rod of the piston 1 through the outer wall connection point of the cylinder 11. One end of the leakage recovery pipe 2 passes through the side wall of the compressor housing 4 and is connected to the separation system.

[0036] The separation system includes a suspension separator 18, a filter 20 connected inside the suspension separator 18, an oil return pipe 17 connected to the suspension separator 18, an oil delivery pipe 28 connected to the bottom of the suspension separator 18, an end of the oil delivery pipe 28 away from the suspension separator 18 connected to an oil tank 16, and a gas delivery pipe 27 connected to the top of the suspension separator 18. A leakage recovery pipe 2 is connected to the body of the gas delivery pipe 27. The gas delivery pipe 27 is connected to the compressor inlet. The oil-gas mixture recovered by the oil return pipe 17 enters the suspension separator 18, where the lubricating oil is filtered by the filter 20. The filtered process gas then enters the compressor's first-stage inlet via the gas delivery pipe 27 and the process gas recovered by the leakage recovery pipe 2. The filtered lubricating oil is then fed into the oil tank 16 via the oil delivery pipe 28.

[0037] Example 5 A vertical reciprocating compressor separation and recycling system includes a compressor housing 4, an oil tank 16 connected to the inner bottom surface of the compressor housing 4, a crankshaft 14 connected to the inner wall of the compressor housing 4, the crankshaft 14 being positioned above the oil tank 16, a power assembly connected to one end of the crankshaft 14, a cylinder 11 connected to the inner top surface of the compressor housing 4, a piston 1 connected inside the cylinder 11, the piston rod of the piston 1 being connected to the crankshaft 14 via a crosshead 13, an isolation chamber 3 connected to the inner wall of the compressor housing 4, the isolation chamber 3 being positioned below the cylinder 11, a recycling assembly connected to the isolation chamber 3, and a separation system connected to the separation assembly passing through the side wall of the compressor housing 4, the separation system being connected to the oil tank 16.

[0038] The power assembly includes a flywheel 7, one end of a crankshaft 14 passes through the side wall of the compressor housing 4 and is connected to the flywheel 7, a mechanical seal ring 8 is connected to the connection point of the crankshaft 14 passing through the side wall of the compressor housing 4, and a shaft pump 15 is connected to the other end of the crankshaft 14 passing through the side wall of the compressor housing 4.

[0039] The crosshead 13 is connected to the inner wall of the compressor housing 4 via the crosshead clamp 6.

[0040] The piston rod of piston 1 passes through the bottom of the isolation chamber 3. A guide bearing 12 is connected at the connection point between the piston rod of piston 1 and the isolation chamber 3. The piston rod of piston 1 passes through the guide bearing 12.

[0041] The recovery assembly includes an oil recovery pipe 17, which is connected to the bottom of the isolation chamber 3. One end of the oil recovery pipe 17 passes through the side wall of the compressor housing 4 and is connected to the separation system. It also includes a leakage recovery pipe 2, which is connected to the piston rod of the piston 1 through the outer wall connection point of the cylinder 11. One end of the leakage recovery pipe 2 passes through the side wall of the compressor housing 4 and is connected to the separation system.

[0042] The separation system includes a suspension separator 18, a filter 20 connected inside the suspension separator 18, an oil collection pipe 17 connected to the suspension separator 18, an oil delivery pipe 28 connected to the bottom of the suspension separator 18, an end of the oil delivery pipe 28 away from the suspension separator 18 connected to an oil tank 16, and an air delivery pipe 27 connected to the top of the suspension separator 18. A leak recovery pipe 2 is connected to the body of the air delivery pipe 27.

[0043] The suspension separator 18 is connected to a differential pressure gauge 19 and a level gauge 21. The differential pressure gauge 19 is located near the filter 20, and the level gauge 21 is located near the bottom of the suspension separator 18. A third valve 24 is connected to the body of the oil supply pipe 28, a second valve 23 is connected to the body of the gas supply pipe 27, and a first valve 22 is connected to the body of the gas leakage recovery pipe 2. The first valve 22 is located near the connection point between the gas leakage recovery pipe 2 and the gas supply pipe 27. A fourth valve 25 is connected to the body of the oil collection pipe 17, and a pressure control gauge 26 is connected between the fourth valve 25 and the isolation chamber 3. The valves on each pipeline control the switch, the level gauge 21 measures the level of lubricating oil in the suspension separator 18, and the pressure control gauge 26 monitors the pressure between the oil collection pipe 17 and the isolation chamber 3 in real time.

[0044] Example 6 A vertical reciprocating compressor separation and recycling system includes a compressor housing 4, an oil tank 16 connected to the inner bottom surface of the compressor housing 4, a crankshaft 14 connected to the inner wall of the compressor housing 4, the crankshaft 14 being positioned above the oil tank 16, a power assembly connected to one end of the crankshaft 14, a cylinder 11 connected to the inner top surface of the compressor housing 4, a piston 1 connected inside the cylinder 11, the piston rod of the piston 1 being connected to the crankshaft 14 via a crosshead 13, an isolation chamber 3 connected to the inner wall of the compressor housing 4, the isolation chamber 3 being positioned below the cylinder 11, a recycling assembly connected to the isolation chamber 3, and a separation system connected to the separation assembly passing through the side wall of the compressor housing 4, the separation system being connected to the oil tank 16.

[0045] The power assembly includes a flywheel 7, one end of a crankshaft 14 passes through the side wall of the compressor housing 4 and is connected to the flywheel 7, a mechanical seal ring 8 is connected to the connection point of the crankshaft 14 passing through the side wall of the compressor housing 4, and a shaft pump 15 is connected to the other end of the crankshaft 14 passing through the side wall of the compressor housing 4.

[0046] The crosshead 13 is connected to the inner wall of the compressor housing 4 via the crosshead clamp 6.

[0047] The piston rod of piston 1 passes through the bottom of the isolation chamber 3. A guide bearing 12 is connected at the connection point between the piston rod of piston 1 and the isolation chamber 3. The piston rod of piston 1 passes through the guide bearing 12.

[0048] The recovery assembly includes an oil recovery pipe 17, which is connected to the bottom of the isolation chamber 3. One end of the oil recovery pipe 17 passes through the side wall of the compressor housing 4 and is connected to the separation system. It also includes a leakage recovery pipe 2, which is connected to the piston rod of the piston 1 through the outer wall connection point of the cylinder 11. One end of the leakage recovery pipe 2 passes through the side wall of the compressor housing 4 and is connected to the separation system.

[0049] The separation system includes a suspension separator 18, a filter 20 connected inside the suspension separator 18, an oil collection pipe 17 connected to the suspension separator 18, an oil delivery pipe 28 connected to the bottom of the suspension separator 18, an end of the oil delivery pipe 28 away from the suspension separator 18 connected to an oil tank 16, and an air delivery pipe 27 connected to the top of the suspension separator 18. A leak recovery pipe 2 is connected to the body of the air delivery pipe 27.

[0050] The suspension separator 18 is connected to a differential pressure gauge 19 and a level gauge 21. The differential pressure gauge 19 is located near the filter 20, and the level gauge 21 is located near the bottom of the suspension separator 18. The oil supply pipe 28 is connected to a third valve 24, the gas supply pipe 27 is connected to a second valve 23, the gas leakage recovery pipe 2 is connected to a first valve 22, and the first valve 22 is located near the connection point between the gas leakage recovery pipe 2 and the gas supply pipe 27. The oil collection pipe 17 is connected to a fourth valve 25, and a pressure control gauge 26 is connected between the fourth valve 25 and the isolation chamber 3.

[0051] Piston 1 is connected to valve 10, and piston cylinder head 9 is connected to the top of piston 1. The valve on the piston enables the compressor to operate in cycles.

[0052] The working principle of this utility model's vertical reciprocating compressor separation and recycling system is as follows: The motor drives the crankshaft 14 to rotate via the flywheel 7. The shaft pump 15, along with the crankshaft 14, adds lubricating oil to the oil tank 16 via an external pipe. Under the action of the crosshead 13, the piston rod of the piston 1 is driven by the crankshaft 14 to move linearly and reciprocally. The oil collection pipe 17 collects the oil-gas mixture leaking from the isolation chamber 3 and discharges it into the suspension separator 18. The process gas medium leaking from the cylinder 11 is collected and recovered via the leakage recovery pipe 2. The oil-gas mixture recovered via the oil collection pipe 17 enters the suspension separator 18 and is filtered by the filter 20 to remove the lubricating oil. The filtered process gas is then combined with the process gas medium recovered by the leakage recovery pipe 2 via the gas delivery pipe 27 and enters the compressor inlet. The filtered lubricating oil is then fed into the oil tank 16 via the oil delivery pipe 28.

[0053] This utility model relates to a vertical reciprocating compressor separation and recovery system that separates process gas and lubricating oil. The process gas is recovered and returned to the compressor's primary inlet for reuse, controlling the partial pressure in the isolation chamber and reducing packing seal wear. Lubricating oil is collected centrally and promptly discharged to the crankcase for recycling. This solves the current problems of low unit efficiency and large packing seal leakage caused by process gas leakage; it also addresses insufficient lubrication due to lubricating oil deficiency and frequent valve damage and shutdowns caused by liquid in the isolation chamber and cylinders, thus reducing the unit's maintenance frequency.

Claims

1. A vertical reciprocating compressor separation and recycling system, characterized in that, The compressor housing (4) includes an oil tank (16) connected to the inner bottom surface of the compressor housing (4), a crankshaft (14) connected to the inner wall of the compressor housing (4), the crankshaft (14) being located above the oil tank (16), a power assembly being connected to one end of the crankshaft (14), a cylinder (11) connected to the inner top surface of the compressor housing (4), a piston (1) connected inside the cylinder (11), the piston rod of the piston (1) being connected to the crankshaft (14) via a crosshead (13), an isolation chamber (3) connected to the inner wall of the compressor housing (4), the isolation chamber (3) being located below the cylinder (11), a recovery assembly connected to the isolation chamber (3), and a separation system connected to the recovery assembly through the side wall of the compressor housing (4), the separation system being connected to the oil tank (16).

2. The vertical reciprocating compressor separation and recycling system according to claim 1, characterized in that, The power assembly includes a flywheel (7), one end of the crankshaft (14) passes through the side wall of the compressor housing (4) and is connected to the flywheel (7), the connection point of the crankshaft (14) passing through the side wall of the compressor housing (4) is connected to a mechanical seal ring (8), and the other end of the crankshaft (14) passes through the side wall of the compressor housing (4) and is connected to a shaft pump (15).

3. The vertical reciprocating compressor separation and recycling system according to claim 1, characterized in that, The crosshead (13) is connected to the inner wall of the compressor housing (4) via the crosshead sleeve (6).

4. The vertical reciprocating compressor separation and recycling system according to claim 1, characterized in that, The piston rod of the piston (1) passes through the bottom of the isolation chamber (3), and a guide bearing (12) is connected at the connection point between the piston rod of the piston (1) and the isolation chamber (3). The piston rod of the piston (1) passes through the guide bearing (12).

5. The vertical reciprocating compressor separation and recycling system according to claim 1, characterized in that, The recovery assembly includes an oil collection pipe (17) which is connected to the bottom of the isolation chamber (3). One end of the oil collection pipe (17) passes through the side wall of the compressor housing (4) and is connected to the separation system. It also includes a leakage recovery pipe (2), which is connected to the piston rod of the piston (1) through the connection point of the outer wall of the cylinder (11). One end of the leakage recovery pipe (2) passes through the side wall of the compressor housing (4) and is connected to the separation system.

6. The vertical reciprocating compressor separation and recycling system according to claim 5, characterized in that, The separation system includes a suspension separator (18), a filter (20) is connected inside the suspension separator (18), an oil collection pipe (17) is connected to the suspension separator (18), an oil delivery pipe (28) is connected to the bottom of the suspension separator (18), the end of the oil delivery pipe (28) away from the suspension separator (18) is connected to the oil tank (16), an air delivery pipe (27) is connected to the top of the suspension separator (18), and a leak recovery pipe (2) is connected to the body of the air delivery pipe (27).

7. The vertical reciprocating compressor separation and recycling system according to claim 6, characterized in that, The suspension separator (18) is connected to a differential pressure gauge (19) and a level gauge (21). The differential pressure gauge (19) is located near the filter (20), and the level gauge (21) is located near the bottom of the suspension separator (18). The body of the oil supply pipe (28) is connected to a third valve (24). The body of the gas supply pipe (27) is connected to a second valve (23). The body of the gas leakage recovery pipe (2) is connected to a first valve (22). The first valve (22) is located near the connection point between the gas leakage recovery pipe (2) and the gas supply pipe (27). The body of the oil collection pipe (17) is connected to a fourth valve (25). The fourth valve (25) is connected to the isolation chamber (3) by a pressure control gauge (26).

8. The vertical reciprocating compressor separation and recycling system according to claim 1, characterized in that, The piston (1) is connected to a gas valve (10), and the top of the piston (1) is connected to a piston cylinder head (9).

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