Device for recovering oil gas of m-pentadiene unloading compressor

By optimizing the design of the oil and gas recovery unit for the isoprene unloading compressor, the problems of gaseous material leakage and low operating efficiency have been solved, achieving efficient and environmentally friendly compressor operation and reducing energy consumption and operating costs.

CN223839278UActive Publication Date: 2026-01-27TONGLING BEISIMEI TECH CO LTD
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Patent Information

Application Number
CN202520495892.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-01-27
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

The existing isoprene recovery unloading compressor oil and gas unit has gaseous material that easily escapes from the refueling vent when connecting the storage tank and the tank truck, resulting in a strong odor of the material on site, low operating efficiency, and high energy consumption.

Method used

A device comprising crankcase components, piston rod, piston, cylinder head, main packing components, cylinder, connecting rod components, and oil scraper components was designed. Through reasonable configuration and combination, gaseous material leakage is avoided, compressor operation is optimized, and sealing performance and efficiency are ensured.

Benefits of technology

It effectively reduces gaseous material leakage, improves the quality of the working environment, reduces energy consumption and operating costs, improves the operating efficiency and gas compression effect of the compressor, and reduces mechanical vibration and noise.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of compressor oil gas, in particular to an m-pentadiene unloading compressor oil gas recovery device which comprises a crankcase component, piston rods are arranged on the two sides of the crankcase component respectively, and the tail ends of the two piston rods are fixedly connected with a first piston and a second piston respectively. A first cylinder cover and a second cylinder cover are arranged on the outer surface of the first piston and the outer surface of the second piston respectively, main filler components are arranged on the side faces of the first cylinder cover and the second cylinder cover respectively, a first-stage cylinder base and a second-stage cylinder base are arranged on the side faces of the two main filler components respectively, and a first-stage air cylinder is installed on the side face of the first-stage cylinder base. Through cooperative use of the crankcase component, the main filler component, the piston rod, the first piston and the first cylinder cover, gas-phase materials can be effectively led to the low-pressure flare gas system, the situation that the gas-phase materials emerge from an oiling breathing opening due to rotating air generated by a crankshaft when the compressor operates is avoided, and therefore the problem that the smell of field materials is obviously relieved is solved; and the quality of the working environment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of compressor oil and gas technology, specifically to a device for recovering oil and gas from unloading compressors containing isoprene. Background Technology

[0002] Compressor oil-air lubrication is an oil-air flow formed by the mixture of compressed air and lubricating oil. Also known as two-phase fluid cooling lubrication, oil-air lubrication is a novel lubrication technology with unparalleled advantages over traditional single-phase fluid lubrication. It successfully solves problems that traditional lubrication methods such as oil-pumping lubrication and oil mist lubrication cannot overcome, and with the development of social technology, lubrication technology has been widely applied.

[0003] The existing oil and gas recovery devices for unloading compressors for isoprene still have certain shortcomings in use:

[0004] The isoprene unloading compressor connects the isoprene storage tank vapor phase pipeline and the tank truck vapor phase pipeline, bringing the vapor phase from the storage tank to the tank truck. The pressure in the tank truck becomes higher than the pressure in the storage tank, and the liquid isoprene material is then pressed from the tank truck to the storage tank through the liquid phase pipeline.

[0005] When the compressor is running, the crankshaft generates rotating air, which causes gaseous materials to emerge from the oil filling vent, resulting in a strong odor in the materials on site. Therefore, it is necessary to recover the gaseous materials. Utility Model Content

[0006] The purpose of this invention is to provide a device for recovering the oil and gas from an isoprene unloading compressor, in order to solve the problem mentioned in the background art where the isoprene unloading compressor connects the isoprene storage tank gas phase pipeline and the tank truck gas phase pipeline, bringing the gas phase from the storage tank to the tank truck. The pressure in the tank truck becomes higher than the pressure in the storage tank, and the liquid phase isoprene material is then pressed from the tank truck to the storage tank through the liquid phase pipeline. When the compressor is running, the crankshaft generates rotating air, which causes the gas phase material to emerge from the refueling vent, resulting in a strong odor in the material on site. Therefore, it is necessary to recover the gas phase material.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] The oil and gas recovery device for unloading isoprene from a compressor includes a crankcase assembly. Piston rods are respectively installed on both sides of the crankcase assembly. A first piston and a second piston are respectively fixedly connected to the ends of the two piston rods. A first cylinder head and a second cylinder head are respectively installed on the outer surfaces of the first and second pistons. Main packing components are respectively installed on the sides of the first and second cylinder heads. A primary cylinder seat and a secondary cylinder seat are respectively installed on the sides of the two main packing components. A primary cylinder is installed on the side of the primary cylinder seat, and a secondary cylinder is installed on the side of the secondary cylinder seat. A middle body and auxiliary packing components are respectively installed on the sides of the two main packing components. Oil scraper components are respectively installed within the two auxiliary packing components.

[0009] As a preferred embodiment of this utility model, the two auxiliary packing components are respectively provided with connecting parts on their sides, and the two connected sides are respectively provided with slides, and both slides are fixedly connected to the two sides of the crankcase component.

[0010] As a preferred embodiment of this utility model, connecting rod components are respectively provided on both sides of the crankcase component, and crosshead components are respectively fixedly connected to the ends of the two connecting rod components, and the ends of the two crosshead components are respectively fixedly connected to the two piston rods.

[0011] As a preferred embodiment of this utility model, the first cylinder head and the second cylinder head are positioned opposite each other, and mounting bases are fixedly connected to the sides of the first cylinder head and the second cylinder head respectively.

[0012] As a preferred embodiment of this utility model, the bottom of the two mounting bases is fixedly connected to a fixing plate, and the bottom of the crankcase component is fixedly connected to the fixing plate.

[0013] As a preferred embodiment of this utility model, the first-stage cylinder and the second-stage cylinder are of the same model, and both the first-stage cylinder and the second-stage cylinder are Festo type cylinders.

[0014] As a preferred embodiment of this utility model, the first piston and the second piston are the same size, and both piston rods are made of brass.

[0015] As a preferred embodiment of this utility model, the outer surface of the crankcase component is coated with an anti-corrosion solution, and the mounting base and fixing plate are both made of stainless steel.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, by using the crankcase component, main packing component, piston rod, first piston, and first cylinder head in combination, the gaseous material can be effectively guided to the low-pressure flare gas system, preventing the gaseous material from escaping from the refueling vent due to the rotating wind generated by the crankshaft during compressor operation. This significantly reduces the odor problem of the material on site and improves the quality of the working environment. Simultaneously, this design also optimizes the overall operating efficiency of the compressor, ensuring the smooth unloading process of isoprene and reducing energy consumption and operating costs.

[0018] 2. In this utility model, by using a connecting rod assembly, a secondary packing assembly, a primary cylinder, a secondary cylinder, and an oil scraper assembly in combination, flammable, explosive, or toxic gases are prevented from being emitted locally, ensuring safety and environmental protection. This allows the piston to reciprocate stably and efficiently within the cylinder head, further improving gas compression efficiency. The addition of the secondary packing assembly effectively prevents gas leakage, ensuring the sealing of the compression process. The rational configuration of the primary and secondary cylinders not only enhances the gas compression effect but also makes the entire compression process smoother, reducing mechanical vibration and noise. The oil scraper assembly effectively removes lubricating oil from the piston rod, preventing lubricating oil from entering the cylinder and ensuring the purity of the compressed gas. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a side view of the crankcase component of this utility model.

[0022] In the diagram: 1. First cylinder head; 2. First piston; 3. First-stage cylinder; 4. First-stage cylinder seat; 5. Main packing assembly; 6. Middle body; 7. Secondary packing assembly; 8. Connector; 9. Oil scraper assembly; 10. Slide rail; 11. Crosshead assembly; 12. Connecting rod assembly; 13. Crankcase assembly; 14. Piston rod; 15. Second-stage cylinder seat; 16. Second-stage cylinder; 17. Second piston; 18. Second cylinder head; 19. Fixing plate; 20. Mounting base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] For examples, please refer to Figures 1-3 This utility model provides a technical solution:

[0025] The oil and gas recovery device for unloading isoprene from a compressor includes a crankcase component 13. Piston rods 14 are respectively provided on both sides of the crankcase component 13. A first piston 2 and a second piston 17 are respectively fixedly connected to the ends of the two piston rods 14. A first cylinder head 1 and a second cylinder head 18 are respectively provided on the outer surfaces of the first piston 2 and the second piston 17. Main packing components 5 are respectively provided on the sides of the first cylinder head 1 and the second cylinder head 18. A first-stage cylinder seat 4 and a second-stage cylinder seat 15 are respectively provided on the sides of the two main packing components 5. A first-stage cylinder 3 is installed on the side of the first-stage cylinder seat 4, and a second-stage cylinder 16 is installed on the side of the second-stage cylinder seat 15. A middle body 6 and an auxiliary packing component 7 are respectively provided on the sides of the two main packing components 5. An oil scraper component 9 is respectively provided inside the two auxiliary packing components 7.

[0026] This design avoids the odor problem caused by the rotating airflow from the crankshaft during compressor operation, which would otherwise cause gaseous materials to escape from the refueling vent. This significantly reduces the odor problem of materials on site and improves the quality of the working environment.

[0027] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, two auxiliary packing components 7 are respectively provided with connecting parts 8 on their sides, and two connecting parts 8 are respectively provided with slide rails 10 on their sides. Both slide rails 10 are fixedly connected to both sides of the crankcase component 13. Connecting rod components 12 are respectively provided on both sides of the crankcase component 13. Crosshead components 11 are respectively fixedly connected to the ends of the two connecting rod components 12. The ends of the two crosshead components 11 are respectively fixedly connected to the two piston rods 14. The first cylinder head 1 and the second cylinder head 18 are positioned opposite each other. The sides of the first cylinder head 1 and the second cylinder head 18 are respectively fixedly connected to the crankcase component 13. The crankcase assembly 13 is fixedly connected to two mounting bases 20, and fixed plates 19 are fixedly connected to the bottom of the two mounting bases 20. The bottom of the crankcase assembly 13 is fixedly connected to the fixed plates 19. The first-stage cylinder 3 and the second-stage cylinder 16 are of the same model and are both Festo type cylinders. The first piston 2 and the second piston 17 are of the same size. The two piston rods 14 are made of brass. The outer surface of the crankcase assembly 13 is coated with an anti-corrosion solution. The mounting bases 20 and the fixed plates 19 are both made of stainless steel.

[0028] The design also optimizes the overall operating efficiency of the compressor, ensuring the smooth unloading of isoprene and reducing energy consumption and operating costs.

[0029] The working process of this utility model is as follows: When the oil and gas recovery device for unloading compressors using this solution is in operation, first check whether the device is working properly, and then install the device in a suitable working area. When the device is running, it can not only effectively guide the gaseous material to the low-pressure flare gas system, but also avoid the rotating wind generated by the crankshaft during compressor operation causing the gaseous material to come out from the oil filling breather, thereby significantly reducing the odor problem of the material on site and improving the quality of the working environment. Meanwhile, the design also optimizes the overall operating efficiency of the compressor, ensuring the smooth unloading of isoprene, reducing energy consumption and operating costs. The first piston 2 reciprocates stably and efficiently within the first cylinder head 1, and the second piston 17 reciprocates stably and efficiently within the second cylinder head 18, further improving the gas compression efficiency. The addition of the auxiliary packing component 7 effectively prevents gas leakage and ensures the sealing of the compression process. The reasonable configuration of the first-stage cylinder 3 and the second-stage cylinder 16 not only enhances the gas compression effect but also makes the entire compression process more stable, reducing mechanical vibration and noise. The setting of the oil scraper component 9 effectively removes the lubricating oil on the piston rod 14, preventing lubricating oil from entering the cylinder and ensuring the purity of the compressed gas.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for recovering isoprene unloading compressor oil and gas, including crankcase components (13), characterized in that: Piston rods (14) are provided on both sides of the crankcase component (13). The ends of the two piston rods (14) are fixedly connected to the first piston (2) and the second piston (17). The outer surfaces of the first piston (2) and the second piston (17) are provided with the first cylinder head (1) and the second cylinder head (18). The sides of the first cylinder head (1) and the second cylinder head (18) are provided with the main packing components (5). The sides of the two main packing components (5) are provided with the first-stage cylinder seat (4) and the second-stage cylinder seat (15). The side of the first-stage cylinder seat (4) is equipped with the first-stage cylinder (3). The side of the second-stage cylinder seat (15) is equipped with the second-stage cylinder (16). The sides of the two main packing components (5) are provided with the middle body (6) and the auxiliary packing components (7). The two auxiliary packing components (7) are provided with the oil scraper components (9).

2. The device for recovering isoprene unloading compressor oil and gas according to claim 1, characterized in that: The two auxiliary packing components (7) are respectively provided with a connection (8) on their sides, and the two connections (8) are respectively provided with a slide (10) on their sides. The two slides (10) are fixedly connected to both sides of the crankcase component (13).

3. The device for recovering isoprene unloading compressor oil and gas according to claim 1, characterized in that: The crankcase component (13) is provided with connecting rod components (12) on both sides. The ends of the two connecting rod components (12) are respectively fixedly connected to crosshead components (11), and the ends of the two crosshead components (11) are respectively fixedly connected to two piston rods (14).

4. The device for recovering isoprene unloading compressor oil and gas according to claim 1, characterized in that: The first cylinder head (1) and the second cylinder head (18) are positioned opposite each other, and mounting bases (20) are fixedly connected to the sides of the first cylinder head (1) and the second cylinder head (18).

5. The device for recovering isoprene unloading compressor oil and gas according to claim 4, characterized in that: The bottom of the two mounting bases (20) is fixedly connected to a fixing plate (19), and the bottom of the crankcase component (13) is fixedly connected to the fixing plate (19).

6. The device for recovering isoprene unloading compressor oil and gas according to claim 1, characterized in that: The first-stage cylinder (3) and the second-stage cylinder (16) are of the same model, and both the first-stage cylinder (3) and the second-stage cylinder (16) are Festo type cylinders.

7. The device for recovering isoprene unloading compressor oil and gas according to claim 1, characterized in that: The first piston (2) and the second piston (17) are the same size, and both piston rods (14) are made of brass.

8. The oil and gas recovery device for unloading compressors of isoprene according to claim 5, characterized in that: The outer surface of the crankcase component (13) is coated with an anti-corrosion solution, and the mounting base (20) and the fixing plate (19) are both made of stainless steel.