Lubricating oil gas recovery device for BB5 pump of slurry bed hydrogenation device
By using a combination of a lubricating oil tank, an exhaust fan, and an oil mist separator in a slurry bed hydrogenation unit, efficient recovery of lubricating oil vapor is achieved, solving the environmental pollution and cost increases caused by direct discharge of lubricating oil, and realizing lubricating oil conservation and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-31
AI Technical Summary
In slurry bed hydrogenation units, the direct emission of lubricating oil vapor from the BB5 pump leads to environmental pollution and lubricating oil loss, increasing operating costs.
The recovery device consists of a lubricating oil tank, an exhaust fan, and an oil mist separator. It achieves the liquefaction and recovery of oil and gas through negative pressure and circulating water cooling. The exhaust fan generates negative pressure to draw the oil and gas into the oil mist separator, and the circulating water cools the oil and gas to change the phase into liquid and recover it to the lubricating oil tank.
It reduces lubricant loss and environmental pollution, lowers operating costs, prevents lubricant leakage, and reduces safety hazards.
Smart Images
Figure CN224057016U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of petroleum chemical industry especially relates to a slurry bed hydrogenation device BB5 pump lubricating oil oil gas recovery device. BACKGROUND
[0002] Crude oil has a wide range of applications in people's daily life and industrial production, and with the improvement of living and production level, the demand for crude oil shows a sustained upward trend, how to efficiently use the byproduct of crude oil processing - residue resource, reduce the consumption of crude oil is the challenge that relevant professional personnel and enterprise face together, at present, the processing of residue resource mostly adopts the slurry bed hydrogenation treatment mode to achieve light weight, thereby realizing the maximization utilization of crude oil value, in the hydrogenation device contains various BB5 pumps such as mixed feed pump, needs to lubricate various pumps in the operation process, and the lubricating oil system plays a key role in the process of equipment operation, and a large amount of oil gas is generated in the operation process of the lubricating oil system, the oil gas contains a certain amount of lubricating oil droplets, direct discharge can cause environmental pollution and loss and waste of lubricating oil, leading to the increase of operation cost.
[0003] Therefore, it is necessary to provide a slurry bed hydrogenation device BB5 pump lubricating oil oil gas recovery device to overcome the defects of the prior art. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the problems in the prior art and provides a slurry bed hydrogenation device BB5 pump lubricating oil oil gas recovery device.
[0005] The technical scheme of the utility model is:
[0006] A slurry bed hydrogenation device BB5 pump lubricating oil oil gas recovery device, comprising a lubricating oil tank, further comprising an exhaust fan and an oil mist separator, the oil mist separator is arranged on the lubricating oil tank through an oil gas inlet pipeline, a negative pressure gauge is arranged on the oil gas inlet pipeline, the inlet of the exhaust fan is communicated with the oil mist separator through a fan inlet pipeline, an adjusting pipeline is arranged between the outlet of the exhaust fan and the oil mist separator, a first control valve is arranged on the adjusting pipeline, a fan outlet pipeline is arranged on the outlet of the exhaust fan, and a return oil pipeline is arranged between the oil mist separator and the lubricating oil tank.
[0007] Preferably, an oil outlet pipeline is arranged on the lubricating oil tank, an oil outlet flange is arranged on the upper end of the oil outlet pipeline, and an inlet flange matched with the oil outlet flange is arranged on the lower end of the oil gas inlet pipeline.
[0008] Preferably, a second control valve is arranged on the fan inlet pipeline.
[0009] Preferably, a jacket is arranged outside the oil mist separator, and a circulating water inlet pipeline and a circulating water return pipeline are arranged on the jacket.
[0010] Preferably, a third control valve is arranged on the circulating water inlet pipeline, and a fourth control valve is arranged on the circulating water return pipeline.
[0011] Preferably, a transparent sight glass and a fifth control valve are arranged on the oil return pipeline in sequence.
[0012] Preferably, the negative pressure gauge is connected to the oil gas inlet pipeline through a sixth control valve.
[0013] Preferably, a drain pipeline is arranged between the outlet of the smoke exhaust fan and the oil gas inlet pipeline, and a check valve is arranged on the drain pipeline.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] The utility model discloses a smoke exhaust fan and the cooperation of first control valve make the oil mist separator produce micro negative pressure, and the oil gas in the lubricating oil tank enters the oil mist separator and is recycled, and the circulation of circulating water in the jacket is circulated to reduce the temperature of oil gas, realize the phase change of oil gas from gas phase to liquid phase, recycle lubricating oil, reduce the loss of lubricating oil, save the cost, reduce the pollution of oil gas emission to the environment, prevent the external leakage of lubricating oil and reduce the security risk. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the structural schematic diagram of the utility model;
[0017] Figure 2 It is the use condition schematic diagram of the utility model.
[0018] Among them, 1, lubricating oil tank;2, smoke exhaust fan;3, oil mist separator;4, oil gas inlet pipeline;5, negative pressure gauge;6, fan inlet pipeline;7, adjusting pipeline;8, first control valve;9, fan outlet pipeline;10, oil return pipeline;11, second control valve;12, jacket;13, circulating water inlet pipeline;14, circulating water return pipeline;15, third control valve;16, fourth control valve;17, transparent sight glass;18, fifth control valve;19, sixth control valve;20, drain pipeline;21, check valve;22, oil outlet pipeline;23, oil outlet flange;24, inlet flange. DETAILED DESCRIPTION
[0019] In order to make the technical means, technical features, utility model purposes and technical effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.
[0020] For example, Figure 1 And Figure 2As shown, a slurry bed hydrogenation device BB5 pump lubricating oil gas recovery device is connected to the lubricating oil tank 1, and is used for recovering oil gas generated during the operation of the lubricating system, the utility model discloses a smoke exhaust fan 2 and oil mist separator 3, the smoke exhaust fan 2 is used to produce negative pressure, and the oil gas in the lubricating oil tank 1 is sucked into the oil mist separator 3, and after the oil gas is liquefied into oil drops by the oil mist separator 3, it flows back into the lubricating oil tank 1 for recovery.
[0021] As shown in the figure, Figure 1 and Figure 2 As shown, the oil mist separator 3 is connected to the lubricating oil tank 1, and specifically, the oil outlet pipeline 22 is installed on the lubricating oil tank 1, one end of the oil outlet pipeline 22 extends into the inside top side of the lubricating oil tank 1, the other end of the oil outlet pipeline 22 is located outside the lubricating oil tank 1, and the end is provided with an oil outlet flange 23, the oil gas inlet pipeline 4 is connected to the oil mist separator 3, the inlet flange 24 is connected to the lower end of the oil gas inlet pipeline 4, the inlet flange 24 is connected with the oil outlet flange 23, and the sealing performance is good, the disassembly and assembly are convenient, the inlet of the smoke exhaust fan 2 is connected with the oil mist separator 3 through the fan inlet pipeline 6, the adjusting pipeline 7 is connected between the outlet of the smoke exhaust fan 2 and the oil mist separator 3, the first control valve 8 is installed on the adjusting pipeline 7, the smoke exhaust fan 2 is started and slowly closed in cooperation with the first control valve 8, so that the negative pressure is obtained in the oil mist separator 3, the oil gas in the lubricating oil tank 1 is sucked into the oil mist separator 3, the negative pressure gauge 5 is connected to the oil gas inlet pipeline 4, the negative pressure gauge 5 is connected with the oil gas inlet pipeline 4 through the sixth control valve 19, according to the operation condition of the lubricating system, the opening and closing condition of the first control valve 8 is controlled, the negative pressure of the recovery device is adjusted, and the real-time observation is carried out through the negative pressure gauge 5.
[0022] As shown in the figure, Figure 1 and Figure 2As shown in the figure, the oil mist separator 3 is connected with an oil return pipeline 10, the oil return pipeline 10 is inserted into the lubricating oil tank 1 downwards and extends to the bottom of the lubricating oil tank 1, the lubricating oil recovered by the oil mist separator 3 is transported back into the lubricating oil tank 1 through the oil return pipeline 10, a transparent sight glass 17 and a fifth control valve 18 are installed on the oil return pipeline 10 in sequence, the flow condition of the recovered lubricating oil is observed through the transparent sight glass 17, and the fifth control valve 18 is used to control the opening and closing of the oil return pipeline 10, a jacket 12 is installed outside the oil mist separator 3, the jacket 12 is connected with a circulating water inlet pipeline 13 and a circulating water return pipeline 14, the circulating water inlet pipeline 13 and the circulating water return pipeline 14 are used to realize the circulation of the cooling water in the jacket 12, the oil mist separator 3 is cooled and cooled down, the phase change of the oil gas from the gas phase to the liquid phase is realized, the oil gas is liquefied and condensed into liquid drops to be recovered, a third control valve 15 is installed on the circulating water inlet pipeline 13 to realize the opening and closing of the circulating water inlet pipeline, a fourth control valve 16 is installed on the circulating water return pipeline 14 to realize the opening and closing of the circulating water return pipeline 14, and the third control valve 15 and the fourth control valve 16 are stainless steel ball valves.
[0023] As shown in the figure, Figure 1 and Figure 2 The outlet of the smoke exhaust fan 2 is connected with a fan outlet pipeline 9 for discharging the oil gas recovered after the lubricating oil, the fan outlet pipeline 9 is led to a high point outside the pump house in a high point discharge mode, a drain pipeline 20 is further connected between the outlet of the smoke exhaust fan 2 and the oil gas inlet pipeline 4, a check valve 21 is installed on the drain pipeline 20, the oil gas recovered can be transported to the oil gas inlet pipeline 4 again to re-enter the oil mist separator 3 for repeated recovery, so that the recovery effect is improved, and the check valve 21 is installed to enable the oil gas to flow only from the outlet of the smoke exhaust fan 2 to the oil gas inlet pipeline 4, thereby preventing backflow.
[0024] The working principle of the utility model is:
[0025] In use, the installation of the oil mist separator 3 on the lubricating oil tank 1 is realized through the connection of the oil outlet flange 23 and the inlet flange 24, the circulating water inlet pipeline 13 is connected to an external water source, and the connection of the circulating water return pipeline 14 is completed, the third control valve 15 and the fourth control valve 16 are opened, the circulating water circulates through the jacket 12 to cool the oil mist separator 3, the first control valve 8, the second control valve 11 and the sixth control valve 19 are opened, the exhaust fan 2 is started, the first control valve 8 is slowly closed, the micro-negative pressure generated in the oil mist separator 3 is observed and adjusted through the negative pressure gauge 5, the negative pressure sucks the oil gas in the lubricating oil tank 1 into the oil mist separator 3, due to the cooling effect of the circulating water, the temperature of the oil gas is reduced and liquefied into lubricating oil, the fifth control valve 18 is opened, the lubricating oil recovered in the oil mist separator 3 flows back into the lubricating oil tank 1 through the oil return pipeline 10, the lubricating oil recovery flow condition is observed through the transparent sight glass 17, and the oil gas recovered through the oil mist separator 3 is discharged at a high altitude from the fan outlet pipeline 9 at the outlet of the exhaust fan 2.
[0026] The above is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any equivalent changes and modifications made within the scope of the present application shall be within the technical scope of the present application.
Claims
1. A slurry bed hydroprocessing unit (BB5) pump lube oil vapor recovery unit comprising a lube oil tank (1), characterized in that: Also include exhaust fan (2) and oil mist separator (3), the oil mist separator (3) is set up on the lubricating oil tank (1) through oil gas inlet pipeline (4), the oil gas inlet pipeline (4) is provided with negative pressure gauge (5), the inlet of exhaust fan (2) and oil mist separator (3) are communicated through fan inlet pipeline (6), the outlet of exhaust fan (2) and oil mist separator (3) are provided with adjusting pipeline (7), the adjusting pipeline (7) is provided with first control valve (8), the outlet of exhaust fan (2) is provided with fan outlet pipeline (9), oil mist separator (3) and lubricating oil tank (1) are provided with oil return pipeline (10).
2. The slurry bed hydroprocessing unit BB5 pump lube oil vapor recovery unit of claim 1 wherein: The lubricating oil tank (1) is provided with oil outlet pipeline (22), the upper end of the oil outlet pipeline (22) is provided with oil outlet flange (23), the lower end of the oil gas inlet pipeline (4) is provided with inlet flange (24) matched with the oil outlet flange (23).
3. The slurry bed hydroprocessing unit BB5 pump lube oil vapor recovery unit of claim 1 wherein: The fan inlet pipeline (6) is provided with second control valve (11).
4. The slurry bed hydroprocessing unit BB5 pump lube oil vapor recovery unit of claim 1 wherein: The oil mist separator (3) is provided with jacket (12) outside, the jacket (12) is provided with circulating water inlet pipeline (13) and circulating water return pipeline (14).
5. The slurry bed hydroprocessing unit BB5 pump lube oil vapor recovery unit of claim 4 wherein: The circulating water inlet pipeline (13) is provided with third control valve (15), and the circulating water return pipeline (14) is provided with fourth control valve (16).
6. The slurry bed hydroprocessing unit BB5 pump lube oil vapor recovery unit of claim 1 wherein: The oil return pipeline (10) is sequentially provided with transparent sight glass (17) and fifth control valve (18).
7. The slurry bed hydroprocessing unit BB5 pump lube oil vapor recovery unit of claim 1 wherein: The negative pressure gauge (5) is connected on the oil gas inlet pipeline (4) through the sixth control valve (19).
8. The slurry bed hydroprocessing unit BB5 pump lube oil vapor recovery unit of claim 1 wherein: The outlet of the exhaust fan (2) and the oil gas inlet pipeline (4) are provided with drain pipeline (20), and the drain pipeline (20) is provided with check valve (21).