Long-distance oil gas recovery system suitable for workshop oil supply station

Abstract

The utility model discloses a remote oil gas recovery system suitable for a workshop oil supply station, which comprises a production line oiling machine arranged at the tail end of a production line of an automobile general assembly workshop, an oil gas recovery pipe of the production line oiling machine is connected with line-side oil gas recovery equipment, and an oil liquid pipe of the line-side oil gas recovery equipment is connected with a line-side liquid collection tank. A liquid level upper limit sensor and a liquid level lower limit sensor are arranged in the line edge liquid collecting tank, an oil conveying pipe of the line edge liquid collecting tank is connected with an underground oil storage tank arranged in a raw material workshop in a factory area, an oil conveying pump is arranged on the oil conveying pipe, and signal output ends of the liquid level upper limit sensor and the liquid level lower limit sensor are respectively connected with a signal input end of a control center. And the control output end of the control center is connected with the control input end of the oil delivery pump. The problem that oil cannot be recycled due to the fact that an oil conveying pipeline is long in distance and cannot be laid on a slope is solved, the device is simple in structure, convenient to use, safe and effective, the manual work amount is reduced, and potential safety hazards of an automobile general assembly workshop are eradicated.

Description

Technical Field

[0001] This utility model relates to the field of automobile refueling safety technology, and in particular to a long-distance oil and gas recovery system suitable for workshop refueling stations. Background Technology

[0002] With the continuous upgrading of national environmental protection regulations, the "Emission Standard of Air Pollutants for Gas Stations GB20952-2020" requires gas stations to implement oil and gas recovery at each stage of unloading, storage, and refueling. In automobile manufacturing plants, the final assembly workshop needs to refuel vehicles as they roll off the production line, and the oil and gas generated during this stage also needs to be recovered. Unlike ordinary gas stations, the distance between the fuel dispensers on the production line and the underground tank area in automobile assembly workshops is relatively far. Because the pipelines cannot be laid at a fixed slope, the oil and gas recovered by the fuel dispensers cannot be returned to the storage tanks, thus failing to achieve oil and gas recovery for the production line fuel dispensers and affecting workshop safety. Summary of the Invention

[0003] This invention provides a long-distance oil and gas recovery system suitable for workshop fuel supply stations, effectively solving the problem that when fuel dispensers are located far from underground fuel storage tanks in automobile manufacturing plants' final assembly lines, the recovered oil and gas cannot be returned to the underground fuel storage tanks by gravity flow during vehicle refueling. Specifically, this invention can adopt the following technical solution:

[0004] The present invention relates to a long-distance oil and gas recovery system suitable for workshop oil supply stations, comprising a production line refueling machine installed at the end of the production line in an automobile assembly workshop, wherein the oil and gas recovery pipe of the production line refueling machine is connected to a line-side oil and gas recovery device, the oil pipe of the line-side oil and gas recovery device is connected to a line-side collection tank, the line-side collection tank is equipped with an upper limit liquid level sensor and a lower limit liquid level sensor, the oil delivery pipe of the line-side collection tank is connected to an underground oil storage tank located in the raw material workshop within the factory area, the oil delivery pipe is equipped with an oil delivery pump, the signal output terminals of the upper limit liquid level sensor and the lower limit liquid level sensor are respectively connected to the signal input terminal of the control center, and the control output terminal of the control center is connected to the control input terminal of the oil delivery pump.

[0005] The line-side oil and gas recovery equipment includes a filter and a condenser arranged sequentially on the oil and gas recovery pipe. The bottom liquid phase outlet of the condenser is connected to the oil pipe, and a gas-liquid separator is provided at the gas phase outlet of the condenser. The bottom liquid phase outlet of the gas-liquid separator is also connected to the oil pipe.

[0006] Both the upper and lower limit liquid level sensors are non-contact liquid level sensors.

[0007] The oil pump is a pneumatic diaphragm pump.

[0008] The shortest straight-line distance between the underground oil storage tank and the line-side liquid collection tank is 3000 meters.

[0009] This utility model provides a long-distance oil and gas recovery system suitable for workshop fuel supply stations. By installing oil and gas recovery equipment near the fuel dispensers on the production line, the system processes the recovered oil and gas into liquid and transports it to a line-side collection tank. Simultaneously, a liquid level sensor installed in the line-side collection pipe collects high and low liquid level signals and interconnects them with the oil pump control switch to automatically start and stop the oil pump. This allows the recovered liquid to be automatically transferred to an underground storage tank within the factory area, thus achieving automatic long-distance oil and gas recovery. The implementation of this utility model avoids the problem of unrecoverable liquid due to long-distance oil pipelines and the inability to lay them on slopes. Its structure is simple, easy to use, safe, and effective. It can automatically transport the recovered liquid to the underground storage tank over long distances, eliminating the need for manual operation of the line-side collection tank valves, reducing manual labor, lowering the safety risks of manual oil handling, and eliminating safety hazards in automobile assembly workshops. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0011] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific working processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0012] This utility model is applicable to situations where the distance between the fuel dispenser in the production workshop and the underground oil storage tank in the raw material workshop is far, and the oil recovery pipe between the two cannot be laid at a slope due to terrain limitations, thus resulting in the inability to recover the oil.

[0013] like Figure 1 As shown, the long-distance oil and gas recovery system applicable to workshop oil supply stations according to this utility model includes a production line refueling machine 1 installed at the end of the production line in the automobile assembly workshop. The oil and gas recovery pipe 2 of the production line refueling machine 1 is connected to the line-side oil and gas recovery equipment 3. The oil pipe 31 of the line-side oil and gas recovery equipment 3 is connected to the line-side collection tank 4. The oil delivery pipe 5 of the line-side collection tank 4 is connected to the underground oil storage tank 6 located in the raw material workshop within the factory area. An oil delivery pump 7 is installed on the oil delivery pipe 5. Under normal circumstances, the shortest straight-line distance between the underground oil storage tank 6 and the line-side collection tank 4 is 3000 meters. Due to terrain limitations, the maximum slope of the oil delivery pipe 5 connecting the two can only be kept within 1.0‰.

[0014] The aforementioned line-side oil and gas recovery device 3 includes a filter and a condenser sequentially arranged on the oil and gas recovery pipe 2. The bottom liquid phase outlet of the condenser is connected to the oil pipe 31, and a gas-liquid separator is installed at the gas phase outlet of the condenser. The bottom liquid phase outlet of the gas-liquid separator is also connected to the oil pipe 31. In addition, a gas discharge pipe 32 is installed at the top of the gas-liquid separator.

[0015] The aforementioned line-side collection tank 4 is equipped with an upper and lower level sensor, which are non-contact level sensors such as radar and ultrasonic level sensors. The oil pump 7 is a pneumatic diaphragm pump. The signal output terminals of the upper and lower level sensors are connected to the signal input terminals of the control center, and the control output terminal of the control center is connected to the control input terminal of the oil pump 7.

[0016] When this utility model is in operation, it is generally carried out according to the following steps:

[0017] S1: When the production line refueling machine 1 installed at the side of the final assembly workshop is working, it will transport the recovered oil and gas through the oil and gas recovery pipe 2 to the oil and gas recovery equipment 3 at the side of the line.

[0018] S2: The line-side oil and gas recovery equipment 3 processes the recovered oil and gas, and discharges the qualified gas into the atmosphere through the gas discharge pipe 32, while the recovered oil is transported to the line-side collection tank 4 through the oil pipe 31.

[0019] S3: The upper limit sensor of the liquid level in the line side collection tank 4 has a high liquid level alarm function. When the collected oil increases continuously and the height reaches the preset high liquid level value, the upper limit sensor of the liquid level will issue an alarm and transmit the signal to the power source switch control module of the oil pump 7.

[0020] S4: When the power source switch control module of the oil pump 7 receives the high liquid level alarm signal, it starts the oil pump 7 and transports the oil recovered in the line side collection tank 4 to the underground oil storage tank 6 in the buried tank area through the oil pipeline 5.

[0021] S5: After the operation of the oil pump 7, the liquid level in the line side collection tank 4 continues to drop. When the liquid level drops to a certain preset value, the liquid level lower limit sensor in the line side collection tank 4 issues a low liquid level alarm and transmits the signal to the power source switch control module of the oil pump 7.

[0022] S6: When the power source switch control module of oil pump 7 receives a low liquid level alarm signal, it shuts down oil pump 7 and stops pumping oil. When the liquid level reaches the high liquid level again, the S3 process is restarted to enter the next cycle, thereby realizing the oil and gas recovery function of line-side refueling in the final assembly workshop.

[0023] It should be noted that in the description of this utility model, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", and "outer" indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A long-distance oil and gas recovery system suitable for workshop oil supply stations, characterized in that: The system includes a production line refueling machine installed at the end of the production line in the automobile assembly workshop. The oil vapor recovery pipe of the production line refueling machine is connected to the line-side oil vapor recovery equipment. The oil pipe of the line-side oil vapor recovery equipment is connected to the line-side collection tank. The line-side collection tank is equipped with an upper limit liquid level sensor and a lower limit liquid level sensor. The oil delivery pipe of the line-side collection tank is connected to an underground oil storage tank located in the raw material workshop within the factory area. An oil delivery pump is installed on the oil delivery pipe. The signal output terminals of the upper limit liquid level sensor and the lower limit liquid level sensor are respectively connected to the signal input terminal of the control center. The control output terminal of the control center is connected to the control input terminal of the oil delivery pump.

2. The long-distance oil and gas recovery system suitable for workshop oil supply stations according to claim 1, characterized in that: The line-side oil and gas recovery equipment includes a filter and a condenser arranged sequentially on the oil and gas recovery pipe. The bottom liquid phase outlet of the condenser is connected to the oil pipe, and a gas-liquid separator is provided at the gas phase outlet of the condenser. The bottom liquid phase outlet of the gas-liquid separator is also connected to the oil pipe.

3. The long-distance oil and gas recovery system suitable for workshop oil supply stations according to claim 1, characterized in that: Both the upper and lower limit liquid level sensors are non-contact liquid level sensors.

4. The long-distance oil and gas recovery system suitable for workshop oil supply stations according to claim 1, characterized in that: The oil pump is a pneumatic diaphragm pump.

5. The long-distance oil and gas recovery system suitable for workshop oil supply stations according to claim 1, characterized in that: The shortest straight-line distance between the underground oil storage tank and the line-side liquid collection tank is 3000 meters.

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