Shale oil loading and unloading sledge

Abstract

The utility model discloses a shale oil loading and unloading sledge which comprises an oil unloading system, an oil loading system and an electric control system which are integrated. The oil unloading system is arranged between the oil unloading inlet and the oil unloading outlet and comprises an oil unloading pipeline, a first pumping mechanism used for conveying shale oil and a metering mechanism used for metering the shale oil. The oil loading system is arranged between the oil loading inlet and the oil loading outlet and comprises an oil loading pipeline and a second pumping mechanism for conveying shale oil; the electric control system is electrically connected with the oil unloading system and the oil loading system and used for automatically cutting off the loading and unloading process when shale oil leaks. And a first communicating pipeline and a second communicating pipeline are arranged between the oil unloading system and the oil loading system, so that the first pumping mechanism and the second pumping mechanism are standby for each other. Oil loading and unloading processes are integrated, the loading and unloading skid is compact in structure, pipeline welding points are reduced, the leakage risk is reduced, the equipment installation quality and the resource utilization rate are improved, and safe and efficient loading and unloading of shale oil are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to shale oil processing technology, concretely relates to a shale oil loading and unloading skid. BACKGROUND

[0002] As an important unconventional oil resource, the loading and unloading efficiency of shale oil directly affects the production efficiency and economic benefits. After shale oil is mined, it is often transported to the destination by tank truck, and then auxiliary loading and unloading are performed with the aid of special equipment. These special equipment include functional components such as shield pumps, filters, pipes, and various valves, which play the roles of pumping and filtering shale oil during loading and unloading, and can ensure that shale oil is safely and efficiently loaded and unloaded to meet the needs of oil industry production and transportation.

[0003] However, in the current loading and unloading process of shale oil, the shield pump, filter, pipe, and various valves are independent components, which need to be positioned, calibrated, and connected respectively during installation at the loading and unloading site, and the installation process is complex and time-consuming. Because the components are scattered, sufficient consideration needs to be given to the connection and maintenance space of the components, which makes the on-site operation inconvenient. There are many welding points between the pipes, and because the on-site construction conditions are poor, the potential leakage risk of the welding points is high, which poses a great safety hazard. In addition, once a pipe or valve component fails, it will cause the loading and unloading process of shale oil to be interrupted, affecting the production efficiency. SUMMARY

[0004] In view of the above defects in the prior art, a shale oil loading and unloading skid is provided, which integrates the oil loading process and the oil unloading process into one, can effectively save space, reduce the number of pipe welding points on site, reduce the leakage risk of shale oil, and ensure safe and efficient loading and unloading of shale oil.

[0005] The technical scheme adopted by the utility model to solve the above technical problems is as follows:

[0006] A shale oil loading and unloading skid includes an integrated oil unloading system, an oil loading system, and an electric control system. The oil unloading system is arranged between an oil unloading inlet and an oil unloading outlet and includes an oil unloading pipe, a first pumping mechanism for transporting shale oil, and a metering mechanism for metering shale oil. The oil loading system is arranged between an oil loading inlet and an oil loading outlet and includes an oil loading pipe and a second pumping mechanism for transporting shale oil. The electric control system is electrically connected to the oil unloading system and the oil loading system and is used to automatically cut off the loading and unloading process when shale oil leaks.

[0007] According to the above technical scheme, the first pumping mechanism includes a first valve, a first shield pump, a first check valve, and a second valve installed in sequence on the oil unloading pipe.

[0008] According to the technical scheme, the metering mechanism comprises a mass flow meter, which is installed downstream of the first pumping mechanism and is provided with a third valve and a fourth valve at two ends respectively, and a fifth valve is connected to an oil discharge pipeline between the mass flow meter and the third valve.

[0009] According to the technical scheme, a metering bypass pipeline is arranged in parallel outside the metering mechanism, two ends of the metering bypass pipeline are connected to the oil discharge pipeline respectively, and the connection positions are located upstream of the third valve and downstream of the fourth valve respectively, and a sixth valve is arranged on the metering bypass pipeline.

[0010] According to the technical scheme, the oil discharging system further comprises a first basket filter and an emergency shut-off valve, the first basket filter is arranged upstream of the first pumping mechanism, and the emergency shut-off valve is arranged downstream of the metering mechanism.

[0011] According to the technical scheme, the second pumping mechanism comprises a seventh valve, a second shield pump, a second check valve and an eighth valve which are sequentially arranged on the oil filling pipeline, and a second basket filter is arranged on the oil filling pipeline upstream of the second pumping mechanism.

[0012] According to the technical scheme, a first communication pipeline and a second communication pipeline are arranged between the oil discharging pipeline and the oil filling pipeline, so that the first pumping mechanism and the second pumping mechanism are used as backup for each other, the first communication pipeline is connected to upstream of the first pumping mechanism and the second pumping mechanism, the second communication pipeline is connected to downstream of the first pumping mechanism and the second pumping mechanism, and a ninth valve and a tenth valve are arranged on the first communication pipeline and the second communication pipeline respectively.

[0013] According to the technical scheme, the electric control system comprises a PLC controller and a combustible gas detector which is electrically connected to the PLC controller, the PLC controller is electrically connected to the emergency shut-off valve and the first shield pump in the oil discharging system, and the PLC controller is further electrically connected to the second shield pump in the oil filling system.

[0014] According to the technical scheme, the oil discharging system is provided with an eleventh valve and a twelfth valve on the oil discharging pipeline near the oil discharging inlet and the oil discharging outlet respectively, and a thirteenth valve and a fourteenth valve are connected to the oil discharging pipeline near downstream of the eleventh valve and upstream of the twelfth valve respectively, and the oil filling system is provided with a fifteenth valve and a sixteenth valve on the oil filling pipeline near the oil filling inlet and the oil filling outlet respectively, and a seventeenth valve and an eighteenth valve are connected to the oil filling pipeline near downstream of the fifteenth valve and upstream of the sixteenth valve respectively.

[0015] According to the technical scheme, the oil unloading outlet and the oil loading inlet are arranged on the same side of the loading and unloading skid, and the oil unloading outlet and the oil loading inlet are arranged on the other side of the loading and unloading skid.

[0016] The utility model has the following beneficial effects:

[0017] 1. The shale oil loading and unloading skid integrates the oil loading process and the oil unloading process, has compact overall structure, is simple and practical and convenient to operate and manage.

[0018] 2. The first communication pipeline and the second communication pipeline are connected between the oil unloading pipeline and the oil loading pipeline, so that the first pumping mechanism and the second pumping mechanism are standby for each other, when one of the devices fails, the other device can be used to maintain operation, and the resource utilization rate is improved.

[0019] 3. The PLC controller is connected with the combustible gas detector, the first shielding pump, the second shielding pump and the emergency shut-off valve, when shale oil leaks and volatilizes, the combustible gas detector can detect and give an alarm, and then the PLC controller gives an instruction to automatically cut off the oil unloading and loading process. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0021] Figure 1 The utility model provides a kind of shale oil loading and unloading skid's structural schematic view for the embodiment of the utility model.

[0022] In the figure: 1, oil unloading inlet; 2, oil unloading outlet; 3, oil loading inlet; 4, oil loading outlet; 5, first valve; 6, first canned pump; 7, first check valve; 8, second valve; 9, mass flow meter; 10, third valve; 11, fourth valve; 12, fifth valve; 13, sixth valve; 14, first basket filter; 15, emergency shut-off valve; 16, seventh valve; 17, second canned pump; 18, second check valve; 19, eighth valve; 20, ninth valve; 21, tenth valve; 22, eleventh valve; 23, twelfth valve; 24, thirteenth valve; 25, fourteenth valve; 26, fifteenth valve; 27, sixteenth valve; 28, seventeenth valve; 29, eighteenth valve; 30, second basket filter; 100, oil unloading pipeline; 200, oil loading pipeline; 300, meter bypass pipeline; 400, first communication pipeline; 500, second communication pipeline. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] As Figure 1 shown, the utility model provides a shale oil loading and unloading skid, including integrated oil unloading system, oil loading system and electric control system, the oil unloading system is located between oil unloading inlet 1 and oil unloading outlet 2, including oil unloading pipeline 100, first pumping mechanism for conveying shale oil and metering mechanism for metering shale oil, the oil loading system is located between oil loading inlet 3 and oil loading outlet 4, including oil loading pipeline 200 and second pumping mechanism for conveying shale oil, the electric control system is electrically connected with oil unloading system and oil loading system, is used for automatically cutting off loading and unloading process when shale oil leaks, the utility model discloses through the optimization design to shale oil loading and unloading process, layout, integrates oil loading process and oil unloading process into an organic whole, effectively saves the space, reduces the pipeline field welding point number, reduces the risk of leakage, can ensure that shale oil is loaded and unloaded safely and efficiently.

[0025] In the embodiment, the first pumping mechanism includes the first valve 5, the first canned pump 6, the first check valve 7 and the second valve 8 sequentially installed on the oil unloading pipeline 100, the first canned pump 6 can provide power for the shale oil, the first check valve 7 is arranged downstream of the first canned pump 6, only allows the shale oil to flow in one direction, can prevent the shale oil from backflowing and impacting the first canned pump 6, prolongs the service life of the first canned pump 6.

[0026] In the embodiment, the metering mechanism comprises a mass flow meter 9 installed on the oil unloading pipeline 100 downstream of the first pumping mechanism, which can calibrate the oil unloading amount and ensure the metering accuracy during the oil unloading process. The third valve 10 and the fourth valve 11 are respectively arranged on the oil unloading pipeline 100 upstream and downstream of the mass flow meter 9, and the fifth valve 12 is externally connected to the oil unloading pipeline 100 between the mass flow meter 9 and the third valve 10. The third valve 10 and the fourth valve 11 are closed, and the fifth valve 12 is opened to unload the pressure in the pipeline, thereby facilitating the maintenance of the mass flow meter 9.

[0027] In the embodiment, the metering mechanism is connected in parallel with a metering bypass pipeline 300, the metering bypass pipeline 300 is connected at both ends to the oil unloading pipeline 100, and the connection positions are located upstream of the third valve 10 and downstream of the fourth valve 11, respectively. The sixth valve 13 is arranged on the metering bypass pipeline 300. When the mass flow meter 9 is maintained, the sixth valve 13 is opened, and the metering bypass pipeline 300 can be used for normal oil unloading, thereby ensuring the normal operation of the oil unloading process.

[0028] In the embodiment, the oil unloading system further comprises an emergency shut-off valve 15 arranged downstream of the metering mechanism, which is used to automatically shut off the oil unloading process when shale oil leaks.

[0029] In the embodiment, the second pumping mechanism comprises a seventh valve 16, a second shield pump 17, a second check valve 18 and an eighth valve 19 sequentially arranged on the oil loading pipeline 200. The second shield pump 17 provides power to pump the shale oil into the vehicle. The second check valve 18 prevents the backflow of shale oil from impacting the second shield pump 17, thereby prolonging the service life of the second shield pump 17.

[0030] In the embodiment, the oil unloading system is provided with a first basket filter 14 upstream of the first pumping mechanism, and the oil loading system is provided with a second basket filter 30 upstream of the second pumping mechanism, which can filter the shale oil respectively and ensure the purity of the shale oil.

[0031] In the embodiment, the electric control system comprises a PLC controller and a combustible gas detector electrically connected to the PLC controller. The PLC controller is electrically connected to the emergency shut-off valve 15 and the first shield pump 6 in the oil unloading system, and the PLC controller is also electrically connected to the second shield pump 17 in the oil loading system. When a leak occurs due to a hole in the pipeline, the combustible gas in the shale oil volatilizes, and the combustible gas detector sends an alarm after detection. The PLC controller sends an instruction to automatically close the emergency shut-off valve 15 and interlock to stop the first shale oil shield pump and the second shale oil shield pump, thereby cutting off the oil unloading and oil loading processes.

[0032] In the embodiment, the oil unloading system is provided with the eleventh valve 22 and the twelfth valve 23 on the oil unloading pipeline 100 at the positions of the oil unloading inlet 1 and the oil unloading outlet 2, and the thirteenth valve 24 is externally connected downstream of the eleventh valve 22, and the fourteenth valve 25 is externally connected downstream of the twelfth valve 23. When the oil unloading system is overhauled, the eleventh valve 22 and the twelfth valve 23 are closed, and then the cleaning liquid is injected from the thirteenth valve 24, and the cleaning liquid flows along the oil unloading pipeline 100 and is discharged from the fourteenth valve 25, so that the entire oil unloading system is conveniently cleaned and overhauled.

[0033] In the embodiment, the oil loading system is provided with the fifteenth valve 26 and the sixteenth valve 27 on the oil loading pipeline 200 at the positions of the oil loading inlet 3 and the oil loading outlet 4, and the seventeenth valve 28 is externally connected downstream of the fifteenth valve 26, and the eighteenth valve 29 is externally connected upstream of the sixteenth valve 27. When the oil loading system is overhauled, the fifteenth valve 26 and the sixteenth valve 27 are closed, and then the cleaning liquid is injected from the seventeenth valve 28, and the cleaning liquid flows along the oil loading pipeline 200 and is discharged from the eighteenth valve 29, so that the entire oil loading system is conveniently cleaned and overhauled.

[0034] In the embodiment, the first communication pipeline 400 and the second communication pipeline 500 are arranged between the oil unloading pipeline 100 and the oil loading pipeline 200, so that the first pumping mechanism and the second pumping mechanism are standby for each other; the first communication pipeline 400 is connected to the upstream of the first pumping mechanism and the second pumping mechanism, the second communication pipeline 500 is connected to the downstream of the first pumping mechanism and the second pumping mechanism, and the ninth valve 20 and the tenth valve 21 are arranged on the first communication pipeline 400 and the second communication pipeline 500, respectively.

[0035] In the embodiment, the normal oil unloading process is as follows: the shale oil in the tank truck enters the oil unloading pipeline 100 from the oil unloading inlet 1, then passes through the first basket filter 14, the first pumping mechanism and the metering mechanism in sequence, and finally enters the station oil storage tank from the oil unloading outlet 2. When the first pumping mechanism fails, the first valve 5 and the second valve 8 are closed, the first shield pump 6 is stopped, the ninth valve 20 on the first communication pipeline 400 and the tenth valve 21 on the second communication pipeline 500 are opened, and the standby oil unloading process is started: the shale oil in the tank truck enters the oil unloading pipeline 100 from the oil unloading inlet 1, then passes through the first basket filter 14, the first communication pipeline 400, the second pumping mechanism, the second communication pipeline 500 and the metering mechanism in sequence, and finally enters the station oil storage tank from the oil unloading outlet 2.

[0036] In the embodiment, the normal loading process is as follows: the shale oil in the station storage tank enters the loading pipeline 200 from the loading inlet 3, then passes through the second basket filter 30 and the second pumping mechanism in turn, and finally enters the tank truck from the loading outlet 4. When the second pumping mechanism fails, the seventh valve 16 and the eighth valve 19 are closed, the second shielding pump 17 is stopped, the first communication pipeline 400 and the second communication pipeline 500 are opened, and the standby loading process is started: the shale oil in the station storage tank enters the loading pipeline 200 from the loading inlet 3, then passes through the first communication pipeline 400, the first pumping mechanism, and the second communication pipeline 500 in turn, and finally enters the tank truck from the loading outlet 4.

[0037] In the embodiment, the unloading inlet 1 and the loading outlet 4 are arranged on the same side of the loading and unloading skid, and the unloading outlet 2 and the loading inlet 3 are arranged on the other side of the loading and unloading skid, so that the tank truck can be parked at a fixed point during loading and unloading of the shale oil, and the operation efficiency is improved.

[0038] The above-described embodiments are part of the embodiments of the present application, rather than all the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

Claims

1. A shale oil loading / unloading sled, characterized by: The integrated oil unloading system, oil loading system and electric control system are provided, the oil unloading system is arranged between the oil unloading inlet and the oil unloading outlet, and comprises an oil unloading pipeline, a first pumping mechanism for transporting shale oil and a metering mechanism for metering shale oil; the oil loading system is arranged between the oil loading inlet and the oil loading outlet, and comprises an oil loading pipeline and a second pumping mechanism for transporting shale oil; and the electric control system is electrically connected with the oil unloading system and the oil loading system, and is used for automatically cutting off the loading and unloading process when shale oil leaks.

2. The shale oil loading / unloading sled of claim 1, wherein: The first pumping mechanism comprises a first valve, a first canned motor pump, a first check valve and a second valve which are sequentially arranged on the oil unloading pipeline.

3. The loading and unloading skid for shale oil according to claim 1, characterized in that: The metering mechanism comprises a mass flowmeter which is arranged downstream of the first pumping mechanism and is provided with a third valve and a fourth valve at two ends respectively, and a fifth valve is connected to the oil unloading pipeline between the mass flowmeter and the third valve.

4. The loading and unloading skid for shale oil according to claim 3, characterized in that: A metering bypass pipeline is arranged in parallel with the metering mechanism, and the metering bypass pipeline is connected with the oil unloading pipeline at two ends and is arranged upstream of the third valve and downstream of the fourth valve respectively, and a sixth valve is arranged on the metering bypass pipeline.

5. The loading and unloading skid for shale oil according to claim 1, characterized in that: The oil unloading system further comprises a first basket filter arranged upstream of the first pumping mechanism and an emergency cut-off valve arranged downstream of the metering mechanism.

6. The loading and unloading skid for shale oil according to claim 1, characterized in that: The second pumping mechanism comprises a seventh valve, a second canned motor pump, a second check valve and an eighth valve which are sequentially arranged on the oil loading pipeline; and the oil loading system further comprises a second basket filter arranged on the oil loading pipeline upstream of the second pumping mechanism.

7. The loading and unloading skid for shale oil according to claim 1, characterized in that: First and second communication pipelines are arranged between the oil unloading pipeline and the oil loading pipeline, so that the first and second pumping mechanisms are used as backup for each other; the first communication pipeline is connected with the upstream of the first and second pumping mechanisms, the second communication pipeline is connected with the downstream of the first and second pumping mechanisms, and a ninth valve and a tenth valve are arranged on the first and second communication pipelines respectively.

8. The shale oil loading / unloading sled of claim 1, wherein: The electric control system comprises a PLC controller and a combustible gas detector which is electrically connected with the PLC controller, the PLC controller is electrically connected with the emergency cut-off valve and the first canned motor pump in the oil unloading system, and the PLC controller is further electrically connected with the second canned motor pump in the oil loading system.

9. The shale oil loading / unloading sled of claim 1, wherein: Eleventh and twelfth valves are arranged on the oil unloading pipeline near the oil unloading inlet and the oil unloading outlet respectively, and thirteenth and fourteenth valves are connected to the oil unloading pipeline near the downstream of the eleventh valve and the upstream of the twelfth valve respectively; fifteenth and sixteenth valves are arranged on the oil loading pipeline near the oil loading inlet and the oil loading outlet respectively, and seventeenth and eighteenth valves are connected to the oil loading pipeline near the downstream of the fifteenth valve and the upstream of the sixteenth valve respectively.

10. The shale oil loading / unloading sled of claim 1, wherein: The oil unloading inlet and the oil loading outlet are arranged on the same side of the loading and unloading skid, and the oil unloading outlet and the oil loading inlet are arranged on the other side of the loading and unloading skid.

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