CN112645269A - Oil recovery quality inspection system and aviation oil storage system - Google Patents

Abstract

The application provides an oil recovery quality control system and aviation fuel storage system. The oil recovery quality inspection system comprises a main pipeline, an oil pump unit, a plurality of oil quality inspection units and an oil recovery unit. The main line includes exit end and a plurality of entrance point, the access connection exit end of oil pump unit, a plurality of oil quality testing units are used for being connected with the oil storage tank that corresponds, a plurality of oil quality testing units are along main line interval distribution, and the exit linkage of oil quality testing unit is to the entrance point, oil quality testing unit is used for receiving the oil of oil storage tank bottoms in order to supply to detect, the export of the access linkage oil pump unit of oil recovery unit, the exit linkage of oil recovery unit is to the entrance point, the main line is used for receiving the oil that flows from oil quality testing unit, oil pump unit is used for carrying the oil in the main line to oil recovery unit, oil recovery unit is used for retrieving and saving the oil. So set up, simplify the arrangement of pipeline, reduce cost.

Description

Oil recovery quality inspection system and aviation oil storage system

Technical Field

The application relates to the technical field of aviation oil storage, in particular to an oil recovery quality inspection system and an aviation oil storage system comprising the same.

Background

With the rapid development of economy in China, the aviation industry is also greatly developed. Particularly, the aviation oil storage technology is in a rapidly growing state, the aviation oil storage technology is generally referred to as an oil product recovery technology, but the requirement for aviation oil recovery is higher and higher. In traditional oil recovery system, need be with the oil at a plurality of oil storage tank bottoms, retrieve and save through the recovery pipeline of difference respectively, its pipeline distribution is complicated and complicated, and area is big, and needs a large amount of manpower and material resources to produce higher expense.

Disclosure of Invention

The application provides a modified oil recovery quality testing system and includes oil recovery quality testing system's aviation oil storage system.

The embodiment of the application provides an oil recovery quality inspection system, includes:

a main pipeline comprising an outlet end and a plurality of inlet ends;

the inlet of the oil pump unit is connected with the outlet end;

the oil quality inspection units are connected with the corresponding oil storage tanks, are distributed at intervals along the main pipeline, and the outlets of the oil quality inspection units are connected to the inlet end, and are used for receiving oil at the bottoms of the oil storage tanks for detection;

the oil recovery unit, the entry linkage of oil recovery unit the export of oil pump unit, the export of oil recovery unit is connected to the entrance point, the main line is used for receiving from the oil that the oil quality control unit flows out, oil pump unit is used for with in the main line the oil carry to oil recovery unit, oil recovery unit is used for retrieving and storing the oil.

Optionally, the oil recovery quality inspection system further includes a recovery pipeline, and the oil quality inspection units are distributed at intervals on two sides of the main pipeline and connected to the inlet end through the recovery pipeline.

Optionally, the main pipeline and the recovery pipeline are both arranged on the same horizontal plane.

Optionally, the inlet of the oil pump unit is arranged at a position lower than the outlet end.

Optionally, the oil recovery quality inspection system further comprises a buffer pipeline, an inlet of the buffer pipeline is connected with the outlet end, an outlet of the buffer pipeline is connected with an inlet of the oil pump unit, and the inlet of the buffer pipeline is lower than the outlet end.

Optionally, the buffer pipeline includes a first end connected to the outlet end and a second end connected to an inlet of the oil pump unit, and a position of the second end is lower than a position of the first end.

Optionally, the oil recovery quality inspection system further comprises a buffer tank arranged at the outlet end, the setting position of the buffer tank is lower than that of the main pipeline, and the oil pump unit is arranged in the buffer tank.

Optionally, the oil pump unit includes a pump, an inlet valve and an outlet valve, the inlet valve is connected between the inlet of the pump and the outlet end, and the outlet valve is connected between the outlet of the pump and the inlet of the oil recovery unit.

Optionally, the inlet valve is kept in a normally open state; and/or

The outlet valve is not fully open.

Optionally, the oil pump unit further comprises an exhaust valve, and the exhaust valve is arranged between the outlet of the pump and the outlet valve.

Optionally, the exhaust valve comprises an automatic exhaust valve; and/or

The exhaust valve is kept in a normally open state.

Optionally, the oil recovery unit includes first oil recovery unit and second oil recovery unit, first oil recovery unit with second oil recovery unit parallel connection in the export of oil pump unit with between the entrance point, the oil quality of the oil product of first oil recovery unit recovery is higher than the oil quality of the oil product of second oil recovery unit recovery.

Optionally, the recovery pipeline includes first recovery pipeline and second recovery pipeline, the oil recovery unit is including retrieving jar and first quality inspection jar, retrieve the jar through first recovery pipe coupling in the export of oil pump unit, first quality inspection jar passes through the second is retrieved the pipeline and is connected to the entrance point.

Optionally, the oil recovery quality inspection system further comprises a first magnetic turning plate liquid level meter arranged on the outer side wall of the first quality inspection tank; the first magnetic turning plate liquid level meter comprises a first floater index, and the first floater index floats up and down according to the liquid level change of oil in the first quality inspection tank to indicate the liquid level of the oil.

Optionally, a first ball valve is arranged on the second recovery pipeline, and the first ball valve is arranged at the downstream of the outlet of the first quality inspection tank.

Optionally, the recycling pipeline includes third recycling pipeline and fourth recycling pipeline, first quality inspection jar passes through third recycling pipeline is connected to the pending processing pond, first quality inspection jar passes through fourth recycling pipeline is connected to the zero-bit jar, the oil quality of the oil of storage in the pending processing pond is higher than the oil quality of the oil of storage in the zero-bit jar.

Optionally, a second ball valve is arranged on the third recovery pipeline, and the second ball valve is arranged at the upstream of the inlet of the tank to be treated; and a third ball valve is arranged on the fourth recovery pipeline and is arranged at the upstream of the inlet of the zero-position tank.

Optionally, the setting position of the first ball valve is higher than the setting positions of the second ball valve and the third ball valve.

Optionally, a safe liquid level line is arranged in the recovery tank, and the safe liquid level line is not more than half of the height of the recovery tank; the oil recovery quality inspection system further comprises a plurality of standby tanks and a conveying pipeline, the standby tanks are connected with the recovery tanks through the conveying pipeline, and the conveying pipeline is used for conveying at least part of oil in the recovery tanks to the standby tanks for storage when the oil in the recovery tanks exceeds the safe liquid level line.

Optionally, the recycling pipeline includes a third recycling pipeline and a fourth recycling pipeline; the oil quality inspection unit comprises a second quality inspection tank, the second quality inspection tank is connected with the oil storage tank through a third recovery pipeline, and the second quality inspection tank is connected with the inlet end through a fourth recovery pipeline.

Optionally, the oil recovery quality inspection system further comprises a second magnetic turning plate liquid level meter arranged on the outer side wall of the second quality inspection tank; the second magnetic turning plate liquid level meter comprises a second floater index, and the second floater index floats up and down according to the liquid level change of the oil in the second quality inspection tank to indicate the liquid level of the oil.

Optionally, the third recovery pipeline and the fourth recovery pipeline are both arranged on the same horizontal plane.

Optionally, a fourth ball valve and a first automatic return valve are arranged on the third recovery pipeline, the fourth ball valve is arranged at the downstream of the outlet of the oil storage tank, and the first automatic return valve is arranged at the upstream of the inlet of the second quality inspection tank; and a fifth ball valve is arranged on the fourth recovery pipeline and is arranged at the downstream of the outlet of the second quality inspection tank.

Optionally, the fourth ball valve is kept in a normally open state.

Optionally, the recycling pipeline includes a fifth recycling pipeline and a sixth recycling pipeline; the oil quality inspection unit comprises a sampler, the sampler is connected with the third recovery pipeline through the fifth recovery pipeline, and the sampler is connected with the fourth recovery pipeline through the sixth recovery pipeline.

Optionally, the fifth recovery pipeline and the sixth recovery pipeline are both arranged on the same horizontal plane.

Optionally, the arrangement positions of the fifth recovery pipeline and the sixth recovery pipeline are not higher than the arrangement positions of the third recovery pipeline and the fourth recovery pipeline.

Optionally, a second self-return valve is arranged on the fifth recovery pipeline, and the second self-return valve is arranged at the upstream of the inlet of the sampler.

The application still provides a aviation oil storage system, including a plurality of oil storage tanks and any one of the aforesaid oil recovery quality inspection system, a plurality of oil quality inspection units of oil recovery quality inspection system correspond a plurality of oil storage tanks.

According to the technical scheme that this application embodiment provides, including the main line, oil pump unit, a plurality of oils quality control unit and oil recovery unit, a plurality of oils quality control unit are connected with the oil storage tank that corresponds, and along main line interval distribution, and receive the oil at the oil storage tank bottoms in order to supply to detect, the main line is used for receiving the oil that flows from oil quality control unit, oil pump unit is used for carrying the oil in the main line to oil recovery unit, oil recovery unit is used for retrieving and storing the oil, so set up, a plurality of oils quality control unit discharge into the main line with the oil at the oil tank bottoms of a plurality of oil storage tanks, and carry the oil in the main line to oil recovery unit recovery and storage through oil pump unit is unified, simplify arranging of pipeline, and the cost is reduced.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of a marine oil storage system of the present application;

FIG. 2 is a schematic cross-sectional view of an embodiment of the pump of the oil pump assembly of the present application, wherein the reed switch of the pump is open;

FIG. 3 is another schematic cross-sectional view of the pump of the oil pump assembly of FIG. 2, wherein the reed switch of the pump is closed;

FIG. 4 is a schematic structural diagram of another embodiment of the aviation fuel storage system of the present application;

fig. 5 is a schematic structural diagram of another embodiment of the aviation fuel storage system of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" includes two, and is equivalent to at least two. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The oil recovery quality inspection system of this application embodiment, including main line, oil pump unit, a plurality of oil quality inspection unit and oil recovery unit. Wherein, the main line includes exit end and a plurality of entrance point, the access connection exit end of oil pump unit, a plurality of oil quality inspection units are used for being connected with the oil storage tank that corresponds, a plurality of oil quality inspection units are along main line interval distribution, and the exit linkage of oil quality inspection unit is to the entrance point, oil quality inspection unit is used for receiving the oil at the oil storage tank bottoms in order to supply to detect, the export of the access connection oil pump unit of oil recovery unit, the exit linkage of oil recovery unit is to the entrance point, the main line is used for receiving the oil that flows from oil quality inspection unit, oil pump unit is used for carrying the oil in the main line to oil recovery unit, oil recovery unit is used for retrieving and saving the oil.

So set up, go into a plurality of oil quality testing units to the main pipeline to carry the oil in the main pipeline to oil recovery unit recovery and storage through oil pump unit in unison, compare with the correlation technique, shorten the recovery cycle, reduce manpower and time, and simplify arranging of pipeline, reduce cost.

The application provides a system is stored to aviation oil, including a plurality of oil storage tanks and oil recovery quality inspection system, a plurality of oil quality inspection units of oil recovery quality inspection system correspond a plurality of oil storage tanks. In some embodiments, the aviation fuel storage system is used for quality detection and recycling of civil aviation fuel, and the oil recovery quality detection system can detect the oil stored at the bottom of the oil storage tank and recycle the oil again. Through being connected a plurality of oil storage tanks and oil recovery quality control system, the oil of a plurality of oil storage tank bottoms is discharged into to the main pipeline through a plurality of oil quality control units to carry the oil in the main pipeline to oil recovery unit recovery and storage through oil pump unit in unison, compare with the correlation technique, simplify arranging of pipeline, reduce cost.

Fig. 1 is a schematic structural diagram of an embodiment of a marine oil storage system 200 according to the present application. The aviation fuel storage system 200 includes a plurality of storage tanks 50 and an oil recovery quality inspection system 100. As shown in fig. 1, the oil recovery quality inspection system 100 includes a plurality of oil recovery quality inspection units 10, a main pipeline 20, an oil pump unit 30, and an oil recovery unit 40. The oil quality inspection units 10 are connected to the same oil pump unit 30 through a main pipeline 20. In some embodiments, the main pipeline 20 includes an outlet end 21 and a plurality of inlet ends 22. The main pipeline 20 includes a tube body, and a plurality of inlet ends 22 are disposed on a wall of the tube body, and can be disposed at an end of the tube body away from the outlet end 21 (also can be understood as an end opposite to the outlet end 21), and the main pipeline 10 is used for receiving oil flowing out from the oil quality inspection unit 30. The oil product can be aviation kerosene, which is called aviation kerosene for short. In other embodiments, the oil may be other fuels, and is not limited in this application. In some embodiments, the inlet of the oil pump assembly 30 is connected to the outlet end 21, and the oil pump assembly 30 is used for conveying the oil in the main pipeline 10 to the oil recovery unit 40. In the present embodiment, the oil pump unit 30 may be a self-priming centrifugal pump. In other embodiments, the oil pump assembly 30 may be other types of pumps, and is not limited in this application. In some embodiments, a plurality of oil quality inspection units 10 are used to connect with the corresponding oil storage tank 50, the plurality of oil quality inspection units 10 are distributed at intervals along the main pipeline 20, the outlet of the oil quality inspection unit 10 is connected to the inlet end 22, and the oil quality inspection unit 10 is used to receive the oil at the bottom of the oil storage tank 50 for inspection. The oil storage tank 50 is referred to as an oil tank, which has a large volume, and in order to ensure safety and meet national standards, two oil storage tanks 50 of the plurality of oil storage tanks 50 are spaced apart from each other, and the spacing between the two oil storage tanks 50 is not less than half of the sum of the heights of the two oil storage tanks 50. For example, in the present embodiment, the height of the storage tanks 50 is 18 meters, and the distance between the two storage tanks 50 in the direction along the main pipeline 20 is not shorter than 18 meters, so that the safety and the national standard can be ensured. Therefore, the plurality of oil quality inspection units 10 are distributed at intervals along the main pipeline 20, which meets the national standard and ensures safety.

In some embodiments, an inlet of the oil recovery unit 40 is connected to an outlet of the oil pump assembly 30, an outlet of the oil recovery unit 40 is connected to the inlet end 22, and the oil recovery unit 40 is used for recovering and storing oil. The oil recovery unit 40 is used for recovering oil with high oil quality, for example, the oil needs to be detected before being reused, and can be reused when the detection is qualified, and the oil with low oil quality can be stored and can be used for other treatments, so that the oil at the bottom of the oil storage tank 50 can be fully utilized, and the oil at the bottom of the oil storage tank 50 can be periodically recovered, thereby improving the quality of the oil in the oil storage tank 50. The oil of 50 tank bottoms of a plurality of oil storage tanks is discharged into to main line 20 through a plurality of oil quality testing units 10 to oil through in the main line 20 is unified to be carried to oil recovery unit 40 through oil pump unit 30 and is retrieved and save, simplify arranging of pipeline, and therefore, the cost is reduced, and because the oil volume that is used for the quality testing that discharges into corresponding oil quality testing unit 10 from 50 tank bottoms of each oil storage tank is less, collect unified recovery with the oil of 50 tank bottoms discharge of a plurality of oil storage tanks, can shorten the recovery cycle, reduce manpower and time.

In some embodiments, the oil quality inspection units 10 may be disposed in multiple numbers (e.g., 3 or more than 3), and the oil quality inspection units 10 are distributed at intervals on two sides of the main pipeline 20, so that the areas on two sides of the main pipeline 20 can be effectively utilized, and the oil quality inspection units 10 are uniformly distributed, thereby reducing the floor area, simplifying the distribution of the pipeline, and reducing the cost. In some embodiments, the oil recovery quality inspection system 100 further includes a recovery pipeline 60, and the plurality of oil quality inspection units 10 are connected to the inlet end 22 through the recovery pipeline 60. The oil quality inspection units 10 are connected to the inlet end 22 in a gathering manner through the recovery pipeline 60, so that the number of laid main pipelines 20 is reduced, the floor area of the main pipelines 20 is reduced, the pipeline distribution is simplified, and the cost is reduced.

In this embodiment, the oil storage tank 50 is a conical bottom tank (as shown in fig. 1), and by using the static pressure generated by the conical bottom tank (the static pressure generated by the conical bottom tank is very large, and the generated pressure is also very large), the main pipeline 20 and the recovery pipeline 60 are both arranged on the same horizontal plane, so that the water and impurities at the bottom of the oil storage tank 50 are conveniently discharged, and the recovery efficiency is improved. In addition, because the whole system occupies a large area, the construction complexity can be reduced and the cost can be reduced by horizontally arranging the main pipeline 20 and the recovery pipeline 60 and arranging the main pipeline 20 and the recovery pipeline 60 on the same horizontal plane. In other embodiments, the main conduit 20 and the recovery conduit 60 may not be at the same level.

In some embodiments, the pump assembly 30 includes a self-priming centrifugal pump that is capable of delivering oil due to centrifugal force. In some embodiments, the oil pump assembly 30 includes a pump 31, an inlet valve 32, and an outlet valve 33, the inlet valve 32 being connected between the inlet and outlet ends 21 of the pump 31, and the outlet valve 33 being connected between the outlet of the pump 31 and the inlet of the oil recovery unit 40. To ensure that all the oil discharged from the outlet end 21 can be discharged into the pump 31, the inlet size of the pump 31 is adapted to the size of the outlet end 21. Before the oil pump unit 30 works, the pump unit 31 must be filled with oil to form a vacuum state, when the impeller rotates rapidly, the oil is forced to rotate rapidly by the blades, the rotating oil flies away from the impeller under the action of centrifugal force, after the oil in the pump unit 31 is thrown out, the central part of the impeller forms a vacuum area, and the oil in the main pipeline 20 is pressed into the oil recovery system 40 through the recovery pipeline 60 under the action of atmospheric pressure or oil pressure. Thus, continuous oil pumping can be realized by circulating operation. It should be noted that the self-priming centrifugal pump can be started before the pump 31 is started, after the pump 31 is filled with oil, otherwise the pump 31 will generate heat, vibrate, and the amount of oil discharged is reduced, which damages the oil pump unit 30 and causes equipment accidents. Therefore, the inlet of the oil pump unit 30 is set at a position lower than the outlet end 21, and the inlet valve 32 is kept in a normally open state, so that the inlet of the oil pump unit 30 (pump 31) is kept in a state filled with oil before starting, which can ensure that the oil pump unit 30 (pump 31) can normally operate. Further, in order to ensure that the pump 31 can smoothly convey the oil in the main pipeline 20 to the oil recovery system 40, the outlet valve 33 is not fully opened, for example, the opening of the outlet valve 33 is not more than a quarter, so that the conveying pressure can be increased, and the conveying speed can be increased, thereby quickly recovering the oil in the main pipeline 20 and the oil in the recovery pipeline 60 to the oil recovery system 40. The opening degree of the outlet valve 33 is determined according to the model (rated voltage/current) of the pump 31. When the pump 31 is used, the outlet valve 33 is opened to a quarter of the opening of the outlet valve 33 to generate a pressure, and the generated pressure can press the oil in the main pipeline 20 into the oil recovery system 40. If the opening degree of the outlet valve 33 is too large, a strong pressure is generated, and for example, the pressure is too large or the load is too high immediately at the time of start-up, and the rated voltage/current of the pump 31 is reached, so that the pump 31 is easily burned out. Therefore, the outlet valve 33 is not fully opened immediately after the pump 31 is started, for example, the opening of the outlet valve 33 is not more than a quarter of the way open, and therefore, the generated pressure is sufficient on the one hand, and no adverse effect is exerted on the pump 31 itself on the other hand.

Fig. 2 is a schematic cross-sectional view of an embodiment of the pump 31 of the oil pump assembly 30 of the present application, wherein the reed switch 311 of the pump 31 is open; fig. 3 shows another schematic cross-sectional view of the pump 31 of the oil pump assembly 30 shown in fig. 2, in which the reed switch 311 of the pump 31 is closed. In some embodiments, the oil pump assembly 30 includes an automatic mode. Referring to fig. 2 and 3, a float switch is provided in the pump 31, the float switch includes a magnetic reed switch 311 and a float 312 provided in the magnetic reed switch 311, and the magnetic reed switch 311 is electrically connected to an external power switch. In some embodiments, reed switch 311 comprises two magnetizable reeds 313 (typically composed of two metals, iron and nickel) and a magnet 314 disposed inside floating ball 312, wherein magnet 314 may be a permanent magnet or an electromagnetic coil, and two reeds 313 are sealed in a glass tube, and reeds 313 function as a magnetic flux conductor. As shown in fig. 2, the two reeds 313 do not contact when not yet operated. As shown in fig. 3, when the magnetic field generated by the magnet 314, the external magnetic field generates different polarities near the end positions of the two reeds, when the magnetic force exceeds the elastic force of the reeds 313, the two reeds 313 attract and conduct the circuit, and when the magnetic field is weakened or disappeared, the reeds 313 are released due to the elasticity of the reeds 313, and the two reeds 313 are separated to open the circuit. In this embodiment, when the water level in the pump 31 rises, the float 312 drives the magnet 314 to rise, and under the action of the applied magnetic field, the two reeds 313 attract each other to turn on the power switch, and at this time, the pump 31 is started; when the water level in the pump 31 drops, the float 312 drives the magnet 314 to drop, and after the magnetic field is weakened or disappears, the spring 313 is released due to its elasticity, and the pump 31 is closed. Compared with the prior art, the pump 31 using the oil pump unit 30 can realize automatic oil pumping and automatic closing without real-time monitoring of workers, so that a large amount of manpower is reduced, and in the embodiment, only one oil pump unit 30 is needed to provide power, so that the oil collected in the main pipeline 20 is recovered to the oil recovery unit 40, compared with the prior art, the number of the oil pump units 30 is reduced, and the cost is reduced. When the liquid level in the float switch reaches a certain height, the magnetic reed switch 311 is closed, and the pump 31 can be started. If the oil quality inspection unit 10 of each oil storage tank 50 is connected with one oil pump assembly 30, less oil is pumped out due to less oil, more oil is left in the recovery pipeline 60 of the oil quality inspection unit 10, and the oil discharged from the bottoms of the oil storage tanks 50 flows into the main pipeline 50, so that the total amount of the oil flowing into the inlet of the pump 31 is more and is collected uniformly, the liquid level in the float switch is higher, the closing time of the magnetic spring switch 311 of the float switch is long, and more oil is pumped out by the pump 31.

It should be noted that when oil needs to be recovered, a worker needs to turn on a main power supply of a power distribution cabinet connected to the pump 31, and place the control mode of the pump 31 in an automatic mode, and when oil in the main pipeline 20 flows into the pump 31, and the floating ball 312 drives the permanent magnet or the electromagnetic coil 314 to rise and the two reeds 313 attract each other, the pump can be started to discharge the oil into the oil recovery unit 40. When the oil in the main pipeline 20 flows into the pump 31 and the floating ball 312 drives the permanent magnet or the electromagnetic coil 314 to descend, the two reeds 313 are released after the magnetic field is weakened or disappears, thereby ending the recovery. After the recovery is completed, the main power supply of the power distribution cabinet is turned off, the control mode of the pump 31 is set to the intermediate mode, and the outlet valve 33 of the pump 31 is closed, where the intermediate mode may be a non-automatic mode, which is not limited in this application.

In some embodiments, the oil pump assembly 30 further includes a vent valve 34, the vent valve 34 is disposed between the outlet of the pump 31 and the outlet valve 33, and the vent valve 34 is used for exhausting air in the pump 31 to ensure that the oil delivered at the outlet valve 34 is free of air. In some embodiments, the purge valve 34 comprises an automatic purge valve. In some embodiments, a float switch (not shown) is disposed in the exhaust valve 34, the exhaust valve 34 is kept in a normally open state, when the pump 31 is just started, oil in the pump 31 is not output from the full outlet, and some air is exhausted through the exhaust valve 34 (generally, air is exhausted upwards), and then along with the rise of the oil level, when the oil in the pump 31 is output from the full outlet, that is, the float switch reaches the upper limit of the liquid level, at this time, the exhaust valve 34 is automatically closed, and no operation by a person is needed, which is simple and fast.

Fig. 4 is a schematic structural diagram of another embodiment of the aviation fuel storage system 200 of the present application. In this embodiment, the oil pump unit 30 is a self-priming centrifugal pump, so as to ensure that the inlet of the oil pump unit 30 is kept filled with oil before starting. As shown in fig. 4, the oil recovery quality inspection system 100 further includes a buffer pipeline 23, an inlet of the buffer pipeline 23 is connected to the outlet end 21, an outlet of the buffer pipeline 23 is connected to an inlet of the oil pump unit 30, and a position of the inlet of the buffer pipeline 23 is lower than a position of the outlet end 21, so that a potential difference exists between the inlet of the oil pump unit 30 and the outlet end 21 of the main pipeline 20, and the inlet of the pump 31 is filled with oil as much as possible. Because the liquid level in the pump 31 can be started when reaching a certain height, if the oil quality inspection unit 10 of each oil storage tank 50 is connected with one oil pump assembly 30, the pump 31 cannot be started because of less oil, and under the condition that the pump 31 can be started, less oil is pumped out, and more oil is left in the recovery pipeline 60 of the oil quality inspection unit 10. If the oil of 50 tank bottoms exhaust of a plurality of oil storage tanks flows into in main line 50, make the oil total amount of the import that flows into pump machine 31 more, unify and summarize, the liquid level in pump machine 31 is higher, thereby make the import of pump machine 31 fill up the oil as far as possible, guarantee can normally start, and can make the oil of pumping more through unified recovery, in addition, the oil in main line 20 can still be guaranteed to discharge more easily in the position that sets up that the inlet of buffer pipeline 23 is less than exit end 21.

In some embodiments, the buffer line 23 includes a first end 231 connected to the outlet end 21 and a second end 232 connected to the inlet of the oil pump assembly 30, and the second end 232 is disposed at a position lower than the first end 231. Since the amount of oil discharged from the bottom of each oil storage tank 50 to the corresponding oil quality inspection unit 10 is relatively small, the second end 232 is disposed at a position lower than the first end 231, that is, there is a potential difference between the second end 232 and the first end 231, so that there is a potential difference between the inlet of the oil pump unit 30 connected to the second end 232 and the outlet end 21 of the main pipeline 20 connected to the first end 231, and the inlet of the pump 31 is filled with oil as much as possible. Because the liquid level in the pump 31 can be started when reaching a certain height, if the oil quality inspection unit 10 of each oil storage tank 50 is connected with one oil pump assembly 30, the pump 31 cannot be started because of less oil, and under the condition that the pump 31 can be started, less oil is pumped out, and more oil is left in the recovery pipeline 60 of the oil quality inspection unit 10. If the oil that a plurality of oil storage tanks 50 tank bottoms discharge flows into in the main pipeline 50, make the total amount of oil that flows into the import of pump machine 31 more, unify and summarize, the liquid level in the pump machine 31 is higher to guarantee that the import of pump machine 31 fills up the oil as far as possible, guarantee can normally start, and can make the oil that pumps more through unified recovery. In addition, the existence of a difference in terrain between the inlet of the oil pump assembly 30 connected to the second end 232 and the outlet end 21 of the main pipeline 20 connected to the first end 231 also ensures that the oil in the main pipeline 20 is easier to discharge. In some embodiments, the first end 231 of the buffer pipeline 23 has a pipe diameter matched with that of the outlet end 21, and the second end 232 of the buffer pipeline 23 has a pipe diameter matched with that of the inlet of the oil pump unit 30 (pump 31). In some embodiments, the first end 231 of the buffer pipeline 23 may be located at the same level as the outlet end 21, and the second end 232 of the buffer pipeline 23 is located at a position lower than the position of the first end 231 of the buffer pipeline 23, so that there is a potential difference between the inlet of the oil pump assembly 30 and the outlet end 21 of the main pipeline 20, and thus the inlet of the pump 31 is filled with oil to ensure normal starting. In other embodiments, the first end 231 of the buffer pipeline 23 is disposed obliquely and may have a predetermined angle with the outlet end 21, and the second end 232 of the buffer pipeline 23 may be disposed horizontally and is disposed at a position lower than the position of the outlet end 21, so that there is a potential difference between the inlet of the oil pump assembly 30 and the outlet end 21 of the main pipeline 20, and thus the inlet of the pump 31 is filled with oil to ensure normal starting.

Fig. 5 is a schematic structural diagram of yet another embodiment of a marine oil storage system 200 according to the present application. As shown in fig. 5, the oil recovery quality inspection system 100 includes a buffer tank 24 disposed at the outlet end 21, and is configured to ensure that the inlet of the pump 31 is filled with oil as much as possible by disposing the buffer tank 24 at a position lower than the main pipeline 20, and disposing the oil pump unit 30 in the buffer tank 24 (in the embodiment shown in fig. 5, the pump 31 and the inlet valve 32 are disposed in the buffer tank 24, and the pipeline connected to the inlet valve 32 of the pump 31 extends along the wall of the buffer tank 24 (as shown in fig. 5), and because the amount of oil discharged from the bottom of each oil storage tank 50 into the corresponding oil quality inspection unit 10 is relatively small, by disposing the oil pump unit 30 in the buffer tank 24 with a relatively low terrain, the inlet of the oil pump unit 30 (the pump 31) and the outlet end 21 of the main pipeline 20 have a terrain difference, on one hand, the oil discharged from the bottoms of the oil storage tanks 50 can be collected and uniformly flowed into the main pipeline 50, the inlet of the pump 31 is ensured to be filled with oil as much as possible, normal starting is ensured, and on the other hand, the oil in the main pipeline 20 can be smoothly discharged.

In some embodiments, the oil recovery unit 40 includes a first oil recovery unit 40a and a second oil recovery unit 40b, the first oil recovery unit 40a and the second oil recovery unit 40b are connected in parallel between the outlet and the inlet end 22 of the oil pump unit 30, and the oil quality of the oil recovered by the first oil recovery unit 40a is higher than that of the oil recovered by the second oil recovery unit 40 b. When the oil is recycled, clean oil is discharged into the first oil recycling unit 40a, and oil with low quality or moisture or impurities is discharged into the second oil recycling unit 40 b. For example, clean oil can be detected again, the oil can be recycled if the quality of the oil meets the requirement, the oil with low quality or with moisture or impurities can be subjected to other treatment, for example, the oil can be discharged into a water-oil separation tank or a dirty oil tank or oil tank bottom discharge operation, and the specific measures can be selected according to the quality of the actual oil, and are not limited in the application.

It should be noted that the first oil recovery unit 40a and the second oil recovery unit 40b have the same structure, and are denoted by the same reference numerals in the embodiment shown in fig. 1, and are not described again here.

In some embodiments, the recovery pipeline 60 includes a first recovery pipeline 61 and a second recovery pipeline 62, the oil recovery unit 40 includes a recovery tank 41 and a first quality inspection tank 42, the recovery tank 41 is connected to the outlet (outlet valve 33) of the oil pump assembly 30 through the first recovery pipeline 61, and the first quality inspection tank 42 is connected to the inlet end 21 through the second recovery pipeline 62. The recovery tank 41 is used to recover the oil discharged by the pump 31, and the first quality inspection tank 42 performs emission inspection of the oil in the recovery tank 41 in order to prevent occurrence of microbial contamination. In some embodiments, the oil recovery quality inspection system 100 further includes a first magnetic flip plate liquid level meter 43 disposed on an outer sidewall of the first quality inspection tank 42; the first magnetic turn-over plate level gauge 43 includes a first float index 431, and the first float index 431 floats up and down according to the level change of the oil in the first quality inspection tank 42 to indicate the level of the oil, so as to prevent the oil flowing into the first quality inspection tank 42 from overflowing through the first float index 431.

In some embodiments, a first ball valve 621 is disposed on the second recycling line 62, and the first ball valve 621 is disposed downstream of the outlet of the first quality inspection tank 42. Before the discharge is checked, the first ball valve 621 is in a closed state, and in order to prevent the oil (for example, oil with low oil quality) remaining in the first quality inspection tank 42 from being discharged to the main pipeline 20, the first ball valve is opened before the discharge needs to be recovered, and is closed when the discharge does not need to be recovered, so that the first ball valve is prevented from being mixed with clean oil and being wasted. In some embodiments, the recycling pipeline 60 includes a third recycling pipeline 63 and a fourth recycling pipeline 64, the first quality inspection tank 42 is connected to the to-be-processed tank 44 through the third recycling pipeline 63, the first quality inspection tank 42 is connected to the null-position tank 45 through the fourth recycling pipeline 64, and the oil quality of the oil stored in the to-be-processed tank 44 is higher than that of the oil stored in the null-position tank 45. Because the oil quality inspection unit 10 receives the oil at the bottom of the oil storage tank 50, the oil can contain partial moisture or impurities due to long-time sedimentation, and the partial moisture or impurities sequentially pass through the main pipeline 20 and the oil pump unit 30 and are discharged into the recovery tank 41, therefore, most of the oil recovered in the recovery tank 41 contains moisture or impurities, and the oil in the recovery tank 41 is received again through the first quality inspection tank 42 for classification treatment, for example, the oil is respectively discharged into the to-be-treated tank 44 and the zero-position tank 45 with different oil qualities, so that the waste of the oil is avoided. Here, the tank to be treated 44 may be an oil treatment tank, and the zero-position tank 45 may be an underground sump tank in which the oil quality of the oil stored therein is lower than the oil quality of the oil stored in the oil treatment tank.

In some embodiments, a second ball valve 631 is disposed on the third recycling line 63, and the second ball valve 631 is disposed upstream of the inlet of the tank 44 to be treated. Since the second ball valve 631 is disposed at the bottom of the first quality inspection tank 42, before inspection and discharge, the second ball valve 631 is in a closed state, so as to prevent oil (e.g., clean oil) remaining in the first quality inspection tank 42 from being discharged to the pool 44 to be treated, and therefore, before recovery and discharge are required, the second ball valve is opened to prevent clean oil from being mixed with the pool 44 to be treated, thereby avoiding waste. In some embodiments, a third ball valve 641 is disposed on the fourth recovery pipe 64, and the third ball valve 641 is disposed upstream of the inlet of the null tank 45. Because the third ball valve 641 is disposed at the bottom of the first quality control tank 42, before inspection and discharge, the third ball valve 641 is in a closed state, so as to prevent oil (e.g., clean oil) remaining in the first quality control tank 42 from being discharged to the zero-position tank 45, and therefore, the third ball valve 641 is opened before recovery and discharge are required, so as to prevent clean oil from being mixed into the zero-position tank 45, and avoid waste. In some embodiments, the first ball valve 621 is disposed at a higher position than the second and third ball valves 631 and 641. Since some of the impurities or water are settled at the bottom in the mixed oil product (here, the mixed oil product refers to an oil product containing moisture or impurities), the second and third ball valves 631 and 641 are disposed at the bottom of the first quality inspection tank 42, and the disposed position of the first ball valve 621 is higher than the disposed positions of the second and third ball valves 631 and 641, so that the moisture or impurities in the first quality inspection tank 42 are more easily discharged.

In some embodiments, a safety fluid level line is provided within the recovery tank 41, the safety fluid level line not exceeding half the height of the recovery tank 41. In the present embodiment, the height of the recovery tank 41 is 8 meters, and the safe liquid level line does not exceed half of the height of the recovery tank 41, i.e., 4 meters. In this embodiment, the safe liquid level line is set to 3.5 meters, and more than half of the space is reserved, so that the oil product can be recovered in emergency. In some embodiments, the oil recovery quality inspection system 100 further includes a plurality of backup tanks 70 and a conveying pipeline 80, the backup tanks 70 are connected to the recovery tank 41 through the conveying pipeline 80, and the conveying pipeline 80 is used for conveying at least part of the oil in the recovery tank 41 to the backup tanks 70 for storage when the oil in the recovery tank 41 exceeds a safe liquid level. In this embodiment, for example, when the oil in the recovery tank 41 exceeds 3.5 meters, the recovered oil is transported to the empty standby tank 70 through the transportation pipeline 80 for storage, and whether the oil reaches the standard needs to be detected again when the oil is reused, and the oil can be reused only when the oil reaches the standard is detected, so as to be recycled, thereby avoiding waste of the oil.

In some embodiments, the recovery line 60 includes a third recovery line 65 and a fourth recovery line 66; the oil quality inspection unit 10 includes a second quality inspection tank 11, the second quality inspection tank 11 is connected to the oil storage tank 50 through a third recovery pipeline 65, and the second quality inspection tank 11 is connected to the inlet end 21 through a fourth recovery pipeline 66. The second quality inspection tank 11 is used for storing and inspecting the oil at the bottom of the oil storage tank 50, and because the recovery pipeline 60 (the third recovery pipeline 65) connected between the second quality inspection tank 11 and the oil storage tank 50 has a certain distance, part of the oil at the bottom of the oil storage tank 50 (wherein, the part of the oil comprises the oil of the third recovery pipeline 65 connected between the second quality inspection tank 11 and the oil storage tank 50) needs to be discharged to the second quality inspection tank 11, and the subsequent detection is carried out, so that the subsequent detection result is more accurate. In some embodiments, the oil recovery quality inspection system 100 further includes a second magnetic flip plate liquid level meter 12 disposed on an outer sidewall of the second quality inspection tank 11; the second magnetic flip plate liquid level meter 12 includes a second float index 121, and the second float index 121 floats up and down according to the liquid level change of the oil in the second quality inspection tank 11 to indicate the liquid level of the oil. Constant scale marks (for example, 70L to 90L, preferably 80L) are arranged in the second quality inspection tank 11, when the oil needs to be inspected, a cover of the second quality inspection tank 11 is opened first, the liquid level of the oil in the second quality inspection tank 11 is observed, meanwhile, the second floater index 121 rises according to the rise of the liquid level, whether the liquid level in the second quality inspection tank 11 reaches the constant scale marks or not is observed through the indication of the second floater index 121, the observation by a worker is facilitated, and the overflow of the oil flowing into the second quality inspection tank 11 is avoided by observing the second floater index 121.

In this embodiment, the oil storage tank 50 is a cone-bottom tank (as shown in fig. 1), and the static pressure generated by the cone-bottom tank is utilized to facilitate the discharge of the water and impurities at the bottom of the oil storage tank 50 by arranging the third recovery pipeline 65 and the fourth recovery pipeline 66 at the same horizontal plane and arranging the third recovery pipeline 65 and the fourth recovery pipeline 66 at the same horizontal plane. In addition, since the whole system occupies a large area, the third recovery pipeline 65 and the fourth recovery pipeline 66 are both disposed on the same horizontal plane, so that the construction difficulty can be reduced, and the cost can be reduced. In some embodiments, a fourth ball valve 651 and a first self-return valve 652 are disposed on the third recovery line 65, and the fourth ball valve 651 is disposed downstream of the outlet of the oil tank 50. In some embodiments, the fourth ball valve 651 is normally open, so that the third recycling line 65 is kept with oil, when the oil needs to be detected, the oil in the oil storage tank 50 can flow into the second quality inspection tank 11 by opening the first automatic return valve 652, and at this time, the pressure of the oil received by the first automatic return valve 652 is slowly released, rather than being increased instantly, so as to protect the second quality inspection tank 11. Because in this embodiment, what oil storage tank 50 adopted is the cone bottom jar, can produce very strong static pressure, if fourth ball valve 651 keeps the closure state, just open when needs examine, can produce great pressure this moment, cause pressure too big to third recovery pipeline 65 and second quality inspection jar 11, consequently, for avoiding appearing the potential safety hazard, will keep normally open state with fourth ball valve 651 earlier, can alleviate oil storage tank 50 tank bottoms and produce the static pressure to improve the security. In some embodiments, the first self-return valve 652 is disposed upstream of the inlet of the second quality canister 11. First self return valve 652 opens when needs detect, and self-closing when the oil in second quality control jar 11 reaches the constant scale mark need not the staff operation, convenient and fast. In some embodiments, a fifth ball valve 661 is disposed on the fourth recovery pipe 66, and the fifth ball valve 661 is disposed downstream of the outlet of the second quality inspection tank 11. The oil product in the second quality inspection tank 11 is opened when the oil product needs to be discharged, and in order to prevent the oil product (for example, the oil product with low quality) remained in the second quality inspection tank 11 from being discharged to the main pipeline 20, the oil product is opened before the oil product needs to be recovered and discharged, so that the oil product is prevented from being mixed with clean oil products, and waste is avoided.

In some embodiments, the recycling line 60 includes a fifth recycling line 67 and a sixth recycling line 68; the oil quality inspection unit 10 comprises a sampler 13, the sampler 13 is connected with the third recovery pipeline 65 through a fifth recovery pipeline 67, and the sampler 13 is connected with the fourth recovery pipeline 66 through a sixth recovery pipeline 68. In this embodiment, the sixth recycling pipe 68 is connected to the fourth recycling pipe 66, and collected to the same point, and then connected to the inlet end 22 of the main pipe 20, so that the number of the inlet ends 22 arranged on the main pipe 20 can be reduced, and in addition, the sixth recycling pipe 68 and the fourth recycling pipe 66 are collected to the same point for assembly, which is convenient for assembly and maintenance. In some embodiments, a quality check scale is provided in the sampler 13 (e.g., at a position four fifths of the sampling area of the sampler), and when detection is required, the oil is discharged into the sampler 13 and then observed, and the oil is mainly visually checked for free water, suspended water and solid impurities, if the visual inspection cannot determine the water content, the oil can be further checked for water content by a water meter (for current use, quality inspection of a spare tank or quality inspection of an oil storage tank, the oil must be checked for water content by the water meter).

In this embodiment, the oil storage tank 50 is a cone-bottom tank (as shown in fig. 1), and the water and impurities at the bottom of the oil storage tank 50 are easily discharged by setting the fifth recovery pipeline 67 and the sixth recovery pipeline 66 at the same level using the static pressure generated by the cone-bottom tank. In addition, since the whole system occupies a large area, the third recovery pipeline 65 and the fourth recovery pipeline 66 are both disposed on the same horizontal plane, so that the construction difficulty can be reduced, and the cost can be reduced. Through the arrangement positions of the fifth recovery pipeline 67 and the sixth recovery pipeline 68 which are not higher than the arrangement positions of the third recovery pipeline 65 and the fourth recovery pipeline 66, more oil (containing moisture and impurities) at the bottom of the oil storage tank 50 is discharged to the sampler 13, and the detection result of the sampler 13 when detecting whether the oil contains free water, suspended moisture and solid impurities is more accurate. In some embodiments, a second self-return valve 671 is provided on the fifth recovery line 67, the second self-return valve 671 being provided upstream of the inlet of the sampler 13. The second self-return valve 671 is opened when detection is needed, and is automatically closed when oil in the sampler 13 reaches a quality inspection scale mark, so that operation of workers is not needed, and convenience and rapidness are realized.

In the oil quality inspection, first, the cover of the second quality inspection tank 11 to be inspected is opened, whether or not the fourth ball valve 651 connected to the cover is normally open (normally, the fourth ball valve 651 is normally open, and if the fourth ball valve 651 is closed, it is opened) is checked, and the fifth ball valve 661 provided downstream of the outlet of the second quality inspection tank 11 is opened. The second self-return valve 671 upstream of the inlet of the probe 13 is then opened to flush the probe 13, draining the oil to the quality check scale (approximately four fifths of the way to the closed probe), then the second self-return valve 671 upstream of the inlet of the probe 13 is closed, a ball valve (not shown) at the bottom of the outlet of the probe 13 is opened for venting, and then the ball valve at the bottom of the outlet of the probe 13 is closed. This step is used for flushing the sampler 13 through the oil to be quality tested, making the test result more accurate.

Further, the first automatic return valve 652 provided upstream of the inlet of the second quality inspection tank 11 to be inspected is opened, and after the oil is discharged to the second quality inspection tank 11 to a constant scale (for example, 70L to 90L, preferably 80L) by observing the second float index 121 of the second magnetic flip level gauge 12, the first automatic return valve 652 provided upstream of the inlet of the second quality inspection tank 11 to be inspected is closed. Because the third recycling pipeline 65 connected between the second quality inspection tank 11 and the oil storage tank 50 has a certain distance, the oil product needs to be discharged to the second quality inspection tank 11 to a constant scale mark so as to discharge part of the oil product in the third recycling pipeline 65 connected between the second quality inspection tank 11 and the oil storage tank 50, and thus, the detection result of the subsequent sampler 13 is more accurate.

Further, the second self-return valve 671 upstream of the inlet of the sampler 13 is opened, the oil product is discharged to the quality inspection scale (about four fifths of the closed sampling area) and then the second self-return valve 671 upstream of the inlet of the sampler 13 is closed, the oil product is visually inspected for free water, suspended moisture and solid impurities, if the moisture content cannot be determined by visual inspection, the oil product can be further inspected for moisture content by a water meter (not shown) (for current use, quality inspection of spare tank or quality inspection of oil storage tank, the water meter must be used for inspecting the moisture content of the oil product).

Further, the fifth ball valve 661 disposed downstream of the outlet of the second quality inspection tank 11 to be inspected and the ball valve at the bottom of the outlet of the sampler 13 are opened, and the oil is discharged to the inlet end 22 of the main pipeline 20 and recovered to the oil recovery unit 40 (for example, to the first oil recovery unit 40a) by the oil pump unit 30. To ensure the smoothness of the recovery pipeline 60 and the main pipeline 20, before checking this step, it is necessary to confirm whether the connected valve of the oil recovery unit 40 is opened, and details thereof are not repeated.

Further, if the oil quality inspection does not meet the requirements, after the above steps are finished, the fifth ball valve 661 disposed at the downstream of the outlet of the second quality inspection tank 11 to be inspected and the ball valve at the bottom of the outlet of the sampler 13 are closed, and then the above steps are repeated until the oil quality inspection meets the requirements. And if the oil quality inspection meets the requirements, carrying out the next step.

Further, after the operation is completed, the fifth ball valve 661 provided downstream of the outlet of the second quality inspection tank 11 is first closed and locked (and the fourth ball valve 651 provided downstream of the outlet of the oil storage tank 50 is kept in a normally open state). The first automatic return valve 652, which is provided upstream of the inlet of the second quality inspection tank 11 being inspected, is then opened to evacuate the third recovery line 65, and the second automatic return valve 671, which is provided upstream of the inlet of the sampler 13, is opened to evacuate the fifth recovery line 67. Thereafter, the first automatic return valve 652 provided upstream of the inlet of the second quality inspection tank 11 to be inspected and the second automatic return valve 671 provided upstream of the inlet of the sampler 13 are closed in this order. And then the fifth ball valve 661 provided at the downstream of the outlet of the second quality inspection tank 11 and the ball valve provided at the bottom of the outlet of the sampler are sequentially closed. And finally the lid of the second quality inspection can 1 is closed.

In oil recovery, the lid of the first quality inspection tank 42 is first opened, oil is discharged to the first quality inspection tank 42 to 220L to 300L by observing the first float index 431 of the first magnetic flap level gauge 43, after sedimentation, the oil in the first quality inspection tank 42 is visually inspected, if the oil contains a small amount or trace moisture impurities, the first ball valve 621 disposed downstream of the outlet of the first quality control tank 42 can be opened, and the oil flows into the inlet end 22 of the main pipeline 20, and is recovered to the oil recovery unit (e.g., discharged to the first oil recovery unit 40a) through the oil pump unit 30, the oil at the bottom of the first quality control tank 42, the third ball valve 641 provided at the bottom of the outlet of the first quality inspection tank 42 may be opened to discharge the oil into the zero-position tank 45, and if a large amount of impurities or moisture is contained, the second ball valve 631 disposed at the bottom of the outlet of the first quality inspection tank 42 can be opened to discharge the oil to the pool 44 for oil-water separation. So set up, can avoid the waste of oil to discharging into in oil quality different pending pond 44, zero-bit jar 45 and the first oil recovery unit 40 a. Further, the above steps are repeated until the oil product in the first quality inspection tank 42 is visually inspected to be free of a large amount of moisture and impurities, and then the second automatic return valve 671 at the upstream of the inlet of the sampler 13 is opened again to visually inspect whether the oil product contains free water, suspended moisture and solid impurities.

Further, after the completion of the operation, the fifth ball valve 661 provided downstream of the outlet of the second quality inspection tank 11 is first closed and locked (and the fourth ball valve 651 provided downstream of the outlet of the oil storage tank 50 is kept in a normally open state). Then, the first automatic return valve 652 provided upstream of the inlet of the second quality inspection tank 11 to be inspected is opened to drain the third recovery line 65, and the second automatic return valve 671 provided upstream of the inlet of the sampler 13 is opened to drain the fifth recovery line 67 in this order. Thereafter, the first automatic return valve 652 provided upstream of the inlet of the second quality inspection tank 11 to be inspected and the second automatic return valve 671 provided upstream of the inlet of the sampler 13 are closed in this order. Then, the fifth ball valve 661 disposed at the downstream of the outlet of the second quality control tank 11 and the ball valve disposed at the bottom of the outlet of the sampler are closed in this order, and the first ball valve 621 disposed at the downstream of the outlet of the first quality control tank 42, the second ball valve 631 disposed at the bottom of the outlet of the first quality control tank 42, and the third ball valve 641 disposed at the bottom of the outlet of the first quality control tank 42 are closed. And finally the lid of the second quality inspection can 1 is closed.

Further, if it is found by the inspection of the second quality inspection tank 11 that the oil product in the oil storage tank 50 always contains a large amount of moisture or impurities, the bottom discharge operation of the oil storage tank 50 can be performed. For example, when the bottom discharge operation of the oil storage tank 50 is performed, the oil returning operation of the oil truck or the bottom oil pumping operation of the oil tank cannot be performed at the same time. Or the oil storage tank 50 meets the settling time after oil enters or the quality of the oil product is checked to have more water and impurities all the time through the second quality inspection tank 11, and then the bottom discharging operation of the oil tank is carried out. Wherein, the settling time after oil collection of the oil storage tank 50 is as follows: the jet fuel has a liquid column of not less than 3 hours per meter, and under special conditions, the jet fuel is allowed to stand for not less than 8 hours in the oil storage tank 50 provided with the float-type oil suction pipe. In some embodiments, the bottom discharge operation of the oil storage tank 50 is to perform bottom discharge on the second oil recovery unit 40b, before the bottom discharge operation, an oil quality check of the recovery tank 41 of the second oil recovery unit 40b is performed, and then an electric valve (not shown) is opened, and then an oil drain line valve of the recovery tank 41 to be bottom discharged is opened, so as to perform bottom discharge to the recovery tank 41 in a self-pressing manner. After the end of the bottom discharge, the electric valve and the dirty oil line valve of the bottom recovery tank 41 are closed, and then the oil quality inspection is performed again on the bottom discharge tank according to the above-described flow. So set up, can effectively carry out classification to the oil of different masses to retrieve and utilize.

The technical solutions disclosed in the embodiments of the present application can complement each other without generating conflicts.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims (29)

1. An oil recovery quality inspection system, characterized by comprising:

a main pipeline comprising an outlet end and a plurality of inlet ends;

the inlet of the oil pump unit is connected with the outlet end;

the oil quality inspection units are connected with the corresponding oil storage tanks, are distributed at intervals along the main pipeline, and the outlets of the oil quality inspection units are connected to the inlet end, and are used for receiving oil at the bottoms of the oil storage tanks for detection;

the oil recovery unit, the entry linkage of oil recovery unit the export of oil pump unit, the export of oil recovery unit is connected to the entrance point, the main line is used for receiving from the oil that the oil quality control unit flows out, oil pump unit is used for with in the main line the oil carry to oil recovery unit, oil recovery unit is used for retrieving and storing the oil.

2. The oil recovery quality inspection system of claim 1, further comprising a recovery pipeline, wherein the plurality of oil recovery quality inspection units are distributed at intervals on both sides of the main pipeline and are connected to the inlet end through the recovery pipeline.

3. The oil recovery quality inspection system of claim 2, wherein the main pipeline and the recovery pipeline are both disposed on the same horizontal plane.

4. The oil recovery quality inspection system of claim 1, wherein an inlet of the oil pump unit is disposed at a position lower than a position at which the outlet end is disposed.

5. The oil recovery quality inspection system of claim 1, further comprising a buffer pipeline, wherein an inlet of the buffer pipeline is connected to the outlet end, an outlet of the buffer pipeline is connected to an inlet of the oil pump unit, and a position of the inlet of the buffer pipeline is lower than a position of the outlet end.

6. The oil recovery quality inspection system of claim 5, wherein the buffer pipeline comprises a first end connected to the outlet end and a second end connected to an inlet of the oil pump unit, and the second end is disposed at a position lower than the first end.

7. The oil recovery quality testing system of claim 1, further comprising a buffer tank disposed at the outlet end, wherein the buffer tank is disposed at a position lower than the main pipeline, and the oil pump unit is disposed in the buffer tank.

8. The oil recovery quality inspection system of claim 1, wherein the oil pump assembly comprises a pump, an inlet valve connected between the inlet and the outlet of the pump, and an outlet valve connected between the outlet of the pump and the inlet of the oil recovery unit.

9. The oil recovery quality inspection system of claim 8, wherein the inlet valve remains normally open; and/or

The outlet valve is not fully open.

10. The oil recovery quality testing system of claim 8, wherein the oil pump unit further comprises an exhaust valve disposed between the outlet of the pump and the outlet valve.

11. The oil recovery quality inspection system of claim 10, wherein the vent valve comprises an automatic vent valve; and/or

The exhaust valve is kept in a normally open state.

12. The oil recovery quality inspection system of claim 1, wherein the oil recovery unit comprises a first oil recovery unit and a second oil recovery unit, the first oil recovery unit and the second oil recovery unit are connected in parallel between the outlet and the inlet of the oil pump unit, and the oil quality of the oil recovered by the first oil recovery unit is higher than the oil quality of the oil recovered by the second oil recovery unit.

13. The oil recovery quality inspection system of claim 2, wherein the recovery pipeline comprises a first recovery pipeline and a second recovery pipeline, the oil recovery unit comprises a recovery tank and a first quality inspection tank, the recovery tank is connected to the outlet of the oil pump unit through the first recovery pipeline, and the first quality inspection tank is connected to the inlet end through the second recovery pipeline.

14. The oil recovery quality testing system of claim 13, further comprising a first magnetic flap level gauge disposed on an outer sidewall of the first quality testing tank; the first magnetic turning plate liquid level meter comprises a first floater index, and the first floater index floats up and down according to the liquid level change of oil in the first quality inspection tank to indicate the liquid level of the oil.

15. The oil recovery quality testing system of claim 13, wherein the second recovery pipeline is provided with a first ball valve, and the first ball valve is arranged at the downstream of the outlet of the first quality testing tank.

16. The oil recovery quality inspection system of claim 15, wherein the recovery pipeline comprises a third recovery pipeline and a fourth recovery pipeline, the first quality inspection tank is connected to the pool to be treated through the third recovery pipeline, the first quality inspection tank is connected to the zero tank through the fourth recovery pipeline, and the oil quality of the oil stored in the pool to be treated is higher than the oil quality of the oil stored in the zero tank.

17. The oil recovery quality inspection system of claim 16, wherein a second ball valve is disposed on the third recovery pipeline, and the second ball valve is disposed upstream of the inlet of the tank to be treated; and a third ball valve is arranged on the fourth recovery pipeline and is arranged at the upstream of the inlet of the zero-position tank.

18. The oil recovery quality inspection system of claim 17, wherein the first ball valve is disposed at a higher position than the second and third ball valves.

19. The oil recovery quality inspection system of claim 13, wherein a safety liquid level line is provided in the recovery tank, the safety liquid level line not exceeding half the height of the recovery tank; the oil recovery quality inspection system further comprises a plurality of standby tanks and a conveying pipeline, the standby tanks are connected with the recovery tanks through the conveying pipeline, and the conveying pipeline is used for conveying at least part of oil in the recovery tanks to the standby tanks for storage when the oil in the recovery tanks exceeds the safe liquid level line.

20. The oil recovery quality inspection system of claim 2, wherein the recovery pipeline comprises a third recovery pipeline and a fourth recovery pipeline; the oil quality inspection unit comprises a second quality inspection tank, the second quality inspection tank is connected with the oil storage tank through a third recovery pipeline, and the second quality inspection tank is connected with the inlet end through a fourth recovery pipeline.

21. The oil recovery quality testing system of claim 20, further comprising a second magnetic flap level gauge disposed on an outer sidewall of the second quality testing tank; the second magnetic turning plate liquid level meter comprises a second floater index, and the second floater index floats up and down according to the liquid level change of the oil in the second quality inspection tank to indicate the liquid level of the oil.

22. The oil recovery quality testing system of claim 20, wherein the third recovery pipeline and the fourth recovery pipeline are both disposed on the same horizontal plane.

23. The oil recovery quality inspection system of claim 20, wherein a fourth ball valve and a first automatic return valve are disposed on the third recovery pipeline, the fourth ball valve is disposed downstream of the outlet of the oil storage tank, and the first automatic return valve is disposed upstream of the inlet of the second quality inspection tank; and a fifth ball valve is arranged on the fourth recovery pipeline and is arranged at the downstream of the outlet of the second quality inspection tank.

24. The oil recovery quality inspection system of claim 23, wherein the fourth ball valve remains normally open.

25. The oil recovery quality inspection system of claim 20, wherein the recovery pipeline comprises a fifth recovery pipeline and a sixth recovery pipeline; the oil quality inspection unit comprises a sampler, the sampler is connected with the third recovery pipeline through the fifth recovery pipeline, and the sampler is connected with the fourth recovery pipeline through the sixth recovery pipeline.

26. The oil recovery quality testing system of claim 25, wherein the fifth recovery pipeline and the sixth recovery pipeline are both disposed on the same horizontal plane.

27. The oil recovery quality inspection system of claim 25, wherein the fifth recovery pipeline and the sixth recovery pipeline are disposed at positions not higher than the third recovery pipeline and the fourth recovery pipeline.

28. The oil recovery quality inspection system of claim 25, wherein a second self-return valve is disposed on the fifth recovery pipeline, and the second self-return valve is disposed upstream of the inlet of the sampler.

29. A aviation oil storage system comprising a plurality of oil storage tanks and an oil recovery quality control system as claimed in any one of claims 1 to 28, wherein the plurality of oil quality control units of the oil recovery quality control system correspond to the plurality of oil storage tanks.

Images