Automobile oil tank truck cheating simulation test device

Abstract

The utility model discloses an automobile oil tank truck cheating simulation test device, which belongs to the technical field of oil tank cheating simulation and comprises a tank body, an oil dipstick, an external container, an electronic scale, a first pipeline, a second pipeline, a ninth stop valve, a tenth stop valve, an eleventh stop valve, a first regulating valve, a liquid pump and a second thermometer. A manhole is formed in the top end of the tank body, the oil dipstick extends into the bottom end of the interior of the tank body through the manhole, the external container is placed on the electronic scale, one end of the first pipeline is communicated with the external container, and the other end of the first pipeline is communicated with the second pipeline. The ninth stop valve, the liquid pump and the tenth stop valve are sequentially installed on the first pipeline, the eleventh stop valve and the first adjusting valve are sequentially installed on the second pipeline, and the second thermometer is placed in the external container. The system can help to analyze the common cheating mechanism of the automobile oil tank truck, simulate the cheating process and obtain the cheating amount.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil tank cheating simulation, in particular to a cheating simulation test device for an automobile oil tanker. Background Art

[0002] Tank trucks, also known as metering tank trucks or oil transport trucks, are mainly used for the transportation and storage of refined oil between oil depots and gas stations. Over the years, the cheating of oil by tank trucks has been rampant, with various cheating methods and increasingly sophisticated "technical" cheating methods, which are difficult to detect with general detection methods. For example: cheating by stealing oil and replacing it (after stealing oil, an equal amount of water is pumped into the tank, or an equal volume of airbags are placed); cheating by adding a dark compartment (the oil in the dark compartment will be retained after unloading the oil. The dark compartment can be a separate dark compartment or container, or it can be a car tank connected to the tank through a control valve, or it can be a retained pipeline volume); cheating by changing the vehicle's deadweight (filling the dark box, pipeline container or car water tank with water before entering the factory for weighing to increase the vehicle's unloaded deadweight, and then draining the water after entering the factory for weighing); cheating by changing the reference point (changing the position of the upper and lower reference points by changing the car tires or changing the tire pressure, rotating the manhole cover, adding or subtracting gaskets at the reference point, etc.); cheating by using the temperature difference of the oil (using the effect of temperature on the volume of oil products), etc. Cheating by stealing oil can occur in all links of oil loading, transportation, and unloading. Illegal personnel obtain improper benefits, which seriously affects the fairness of oil trade handover. In order to timely discover the cheating behavior of oil theft by automobile tanker trucks, analyze the cheating mechanism, reproduce the cheating process, and calculate the cheating amount, a cheating simulation test device for automobile tanker trucks is urgently needed by technical personnel in this field. Utility Model Content

[0003] In view of this, the utility model provides a cheating simulation test device for an automobile oil tanker, which is used to solve the above-mentioned problem.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A cheating simulation test device for an automobile oil tanker, comprising: a tank body, an oil dipstick, an external container, an electronic scale, a first pipeline, a second pipeline, a ninth stop valve, a tenth stop valve, an eleventh stop valve, a first regulating valve, a liquid pump and a second thermometer; a manhole is arranged at the top of the tank body, the oil dipstick extends into the inner bottom end of the tank body through the manhole, the external container is placed on the electronic scale, one end of the first pipeline is connected with the external container, and the other end is connected with the second pipeline, the other end of the second pipeline is connected with the tank body through the manhole, the ninth stop valve, the liquid pump and the tenth stop valve are sequentially installed on the first pipeline, the eleventh stop valve and the first regulating valve are sequentially installed on the second pipeline, and the second thermometer is placed in the external container.

[0006] Further, it further includes a third pipeline, a thirteenth stop valve and a third regulating valve. One end of the third pipeline is communicated with the first pipeline and the second pipeline through a tee joint. The other end of the third pipeline is communicated with the tank body through the bottom end of the tank body. The thirteenth stop valve and the third regulating valve are sequentially installed on the third pipeline.

[0007] Further, it further includes an external air source, a first stop valve and an airbag. The airbag is located inside the tank body. The external air source is communicated with the airbag through a pipeline. The pipeline through which the external air source is communicated with the airbag penetrates through the side wall of the tank body. The first stop valve is installed on the pipeline through which the external air source is communicated with the airbag and is located outside the tank body.

[0008] Further, it further includes a fourth pipeline, a fifth pipeline, a second stop valve and a fifth stop valve. A hidden box is arranged at the inner bottom end of the tank body. The hidden box is arranged to be open. One end of the fourth pipeline is communicated with the bottom end of the tank body, and the other end is communicated with an external container. The fifth stop valve is installed on the fourth pipeline; one end of the fifth pipeline is communicated with the bottom end of the hidden box, and the other end is communicated with the external container. The second stop valve is installed on the fifth pipeline.

[0009] Further, it further includes a sixth pipeline, a sixth stop valve, an automobile fuel tank, a seventh pipeline and a seventh stop valve. One end of the sixth pipeline is communicated with the fourth pipeline through a tee joint, and the other end is communicated with the automobile fuel tank. The sixth stop valve is installed on the sixth pipeline. One end of the seventh pipeline is communicated with the bottom end of the automobile fuel tank, and the other end is communicated with the external container. The seventh stop valve is installed on the seventh pipeline.

[0010] Further, it further includes an eighth pipeline, a third stop valve, a pipeline container and a fourth stop valve. One end of the eighth pipeline is communicated with the bottom end of the tank body, and the other end is communicated with the external container. The third stop valve, the pipeline container and the fourth stop valve are sequentially installed on the eighth pipeline.

[0011] Further, it further includes a ninth pipeline, a twelfth stop valve, a second regulating valve, an automobile water tank, a tenth pipeline and an eighth stop valve. One end of the ninth pipeline is communicated with the third pipeline through a tee joint, and the other end is communicated with the automobile water tank. The twelfth stop valve and the second regulating valve are sequentially installed on the ninth pipeline. One end of the tenth pipeline is communicated with the automobile water tank, and the other end is communicated with the external container. The eighth stop valve is installed on the tenth pipeline.

[0012] Further, it further includes a horizontal regulator. A plurality of the horizontal regulators are installed at the bottom edge of the tank body for leveling the tank body.

[0013] Furthermore, it also includes an upper reference gasket and a lower reference gasket, the upper reference gasket is placed at the top of the manhole, the bottom end of the tank body is provided with a ruler drop point groove, and the lower reference gasket is placed in the ruler drop point groove.

[0014] Furthermore, it also includes a first thermometer, wherein a measuring component of the first thermometer is inserted into the tank body and is used to detect the temperature of the liquid in the tank body.

[0015] The beneficial effects of the utility model are:

[0016] The utility model reveals the cheating mechanism and simulates the cheating process through the description of various typical cheating behaviors, and then obtains the cheating amount, so that administrative authorities and trade-related parties can timely discover cheating behaviors or prevent the occurrence of cheating behaviors in advance; and the application has a simple structure and is easy to be implemented and promoted in university teaching, institutional training, and technical arbitration analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 It is a structural view of a cheating simulation test device for a tanker truck;

[0019] Figure 2 yes Figure 1 A partial enlargement of Figure 1 ;

[0020] Figure 3 yes Figure 1 A partial enlargement of Figure 2 ;

[0021] Among them, in the figure:

[0022] 1 - Tank body, 2 - Manhole, 3 - Dipstick, 4 - External container, 5 - Electronic scale, 6 - First pipeline, 7 - Second pipeline, 8 - Ninth stop valve, 9 - Tenth stop valve, 10 - Eleventh stop valve, 11 - First regulating valve, 12 - Liquid pump, 13 - Second thermometer, 14 - Third pipeline, 15 - Thirteenth stop valve, 16 - Third regulating valve, 17 - External gas source, 18 - First stop valve, 19 - Fourth pipeline, 20 - Fifth pipeline, 21 - Second stop valve, 22 - Fifth stop valve, 23 - Dark box, 24 - Sixth pipeline, 25 - Sixth stop valve, 26 - Automobile fuel tank, 27 - Seventh pipeline, 28 - Seventh stop valve, 29 - Eighth pipeline, 30 - Third stop valve, 31 - Pipeline container, 32 - Fourth stop valve, 33 - Ninth pipeline, 34 - Twelfth stop valve, 35 - Second regulating valve, 36 - Automobile water tank, 37 - Tenth pipeline, 38 - Eighth stop valve, 39 - Level regulator, 40 - Upper reference gasket, 41 - Lower reference gasket, 42 - First thermometer, 43 - Airbag. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Refer to the attached Figures 1-3 As shown, the present invention provides a cheating simulation test device for an oil tanker, including: a tank body 1, a dipstick 3, an external container 4, an electronic scale 5, a first pipeline 6, a second pipeline 7, a ninth stop valve 8, a tenth stop valve 9, an eleventh stop valve 10, a first regulating valve 11, a liquid pump 12 and a second thermometer 13; the tank body 1 is a horizontal cylinder, which can simulate a single or multiple compartments of an oil tanker. A manhole 2 (outer diameter 610 mm, inner diameter 600 mm, height 150 mm) is provided at the top of the tank body 1. A circular manhole cover is installed on the manhole 2, and a lower scale point is provided on the manhole cover. The liquid level value in the tank can be measured through the dipstick 3. For the convenience of demonstration, the cover part on the manhole cover is removed in the figure, and only the cylinder part is retained; the dipstick 3 extends into the inner bottom end of the tank body 1 through the manhole 2. The external container 4 is placed on the electronic scale 5. One end of the first pipeline 6 is connected to the external container 4, and the other end is connected to the second pipeline 7. The other end of the second pipeline 7 is connected to the tank body 1 through the manhole 2. The ninth stop valve 8, the liquid pump 12 and the tenth stop valve 9 are sequentially installed on the first pipeline 6. The eleventh stop valve 10 and the first regulating valve 11 are sequentially installed on the second pipeline 7. The second thermometer 13 is placed in the external container 4.

[0025] Preferably, in one embodiment, a cheating simulation test device for a motor vehicle fuel tanker further includes a third pipeline 14, a thirteenth stop valve 15, and a third regulating valve 16. One end of the third pipeline 14 is connected to the first pipeline 6 and the second pipeline 7 through a tee, and the other end of the third pipeline 14 is connected to the tank body 1 through the bottom end of the tank body 1. The thirteenth stop valve 15 and the third regulating valve 16 are sequentially installed on the third pipeline 14.

[0026] Preferably, in one embodiment, a cheating simulation test device for a motor vehicle fuel tanker further includes an external air source 17, a first stop valve 18, and an airbag 43. The airbag 43 is located inside the tank body 1. The external air source 17 is connected to the airbag 43 through a pipeline, and the pipeline connecting the external air source 17 and the airbag 43 passes through the side wall of the tank body 1. The first stop valve 18 is installed on the pipeline connecting the external air source 17 and the airbag 43 and is located outside the tank body 1. The airbag 43 is connected to the external air source 17 through the first stop valve 18 and can be inflated to a certain volume to occupy the liquid volume inside the tank body 1.

[0027] Preferably, in one embodiment, a cheating simulation test device for a motor vehicle fuel tanker further includes a fourth pipeline 19, a fifth pipeline 20, a second stop valve 21, and a fifth stop valve 22. A cube-shaped hidden box 23 with a side length of 50 mm is provided at the inner bottom end of the tank body 1. The hidden box 23 is provided with an open mouth and is connected to the inside of the tank body 1. One end of the fourth pipeline 19 is connected to the bottom end of the tank body 1, and the other end is connected to the external container 4. The fifth stop valve 22 is installed on the fourth pipeline 19. One end of the fifth pipeline 20 is connected to the bottom end of the hidden box 23, and the other end is connected to the external container 4. The second stop valve 21 is installed on the fifth pipeline 20. The liquid in the hidden box 23 can be discharged to the outside of the tank body 1 through the fifth pipeline 20 and the second stop valve 21, and the liquid inside the tank body 1 (except inside the hidden box 23) can be discharged to the outside of the tank body 1 through the fourth pipeline 19 and the fifth stop valve 22. The fifth stop valve 22 also functions as a sampling valve.

[0028] Preferably, in one embodiment, a cheating simulation test device for a motor vehicle fuel tanker further includes a sixth pipeline 24, a sixth stop valve 25, a motor vehicle fuel tank 26, a seventh pipeline 27, and a seventh stop valve 28. One end of the sixth pipeline 24 is connected to the fourth pipeline 19 through a tee, and the other end is connected to the motor vehicle fuel tank 26. The sixth stop valve 25 is installed on the sixth pipeline 24. One end of the seventh pipeline 27 is connected to the bottom end of the motor vehicle fuel tank 26, and the other end is connected to the external container 4. The seventh stop valve 28 is installed on the seventh pipeline 27. Opening the sixth stop valve 25 can discharge a part of the liquid to the motor vehicle fuel tank 26 while discharging the liquid inside the tank body 1 to the outside of the tank body 1. The motor vehicle fuel tank 26 is a cube with a side length of 50 mm. The upper part of the motor vehicle fuel tank 26 can receive the liquid from the outer tank through the sixth stop valve 25, and the lower part can discharge the liquid inside it to the outside of the tank body 1 through the seventh pipeline 27 and the seventh stop valve 28.

[0029] In a preferred embodiment, a cheating simulation test device for a tanker truck also includes an eighth pipeline 29, a third stop valve 30, a pipeline container 31 and a fourth stop valve 32. One end of the eighth pipeline 29 is connected to the bottom end of the tank body 1, and the other end is connected to the external container 4. The third stop valve 30, the pipeline container 31 and the fourth stop valve 32 are sequentially installed on the eighth pipeline 29. The bottom of the tank body 1 is connected to the pipeline container 31 through the eighth pipeline 29 to simulate the pipeline volume of the tanker truck. The third stop valve 30 and the fourth stop valve 32 arranged before and after the pipeline container 31 can receive the liquid from the inside of the tank body 1 and discharge it to the outside of the tank body 1. The fourth stop valve 32 also has the function of an oil unloading valve.

[0030] Preferably, an embodiment, a cheating simulation test device for a tanker truck also includes a ninth pipeline 33, a twelfth stop valve 34, a second regulating valve 35, a car water tank 36, a tenth pipeline 37 and an eighth stop valve 38. One end of the ninth pipeline 33 is connected to the third pipeline 14 through a tee, and the other end is connected to the car water tank 36. The twelfth stop valve 34 and the second regulating valve 35 are sequentially installed on the ninth pipeline 33. One end of the tenth pipeline 37 is connected to the car water tank 36, and the other end is connected to the external container 4. The eighth stop valve 38 is installed on the tenth pipeline 37. The car water tank 36 is a cube with a side length of 50 mm. The upper part can receive liquid from the external container 4. The lower part is provided with the tenth pipeline 37 and the eighth stop valve 38, and the liquid inside it can be discharged to the outside of the tank body 1.

[0031] In a preferred embodiment, a cheating simulation test device for a tanker truck also includes a level adjuster 39. Four level adjusters 39 are provided on the outer bottom edge of the tank body 1 to perform leveling operations and simulate tire replacement or tire pressure changes of the tanker truck.

[0032] Preferably, in an embodiment, an automobile oil tanker cheating simulation test device further includes an upper reference gasket 40 and a lower reference gasket 41. The upper reference gasket 40 is placed at the top of the manhole 2, and a dipstick point groove is provided at the bottom end of the tank body 1. The lower reference gasket 41 is placed in the dipstick point groove. The upper reference gasket 40 is in an annular shape, with an outer diameter of 610 mm, an inner diameter of 600 mm, and a thickness of 5 mm; the lower reference gasket 41 is in a round cake shape, with a diameter of 200 mm and a thickness of 5 mm. A piece of upper reference gasket 40 is installed on the upper edge of the cylinder of the manhole 2. At this time, the corresponding position of the dipstick point is defined as the "upper reference point". On this basis, when another piece of upper reference gasket 40 is installed, it is defined as the "cheating upper reference point one"; when no upper reference gasket 40 is installed, it is defined as the "cheating upper reference point two". Correspondingly, a dipstick point groove is provided at the bottom of the tank corresponding to the dipstick point position. The dipstick point groove is a concave cylindrical hole, with an inner diameter of 210 mm and a depth of 5 mm. The dipstick point is located at the center of the cylindrical cross-section. A piece of lower reference gasket 41 is installed in the dipstick point groove. At this time, the corresponding position of the dipstick point is defined as the "lower reference point". On this basis, when another piece of lower reference gasket 41 is installed, it is defined as the "cheating lower reference point one"; when no lower reference gasket 41 is installed, it is defined as the "cheating lower reference point two".

[0033] Preferably, in an embodiment, an automobile oil tanker cheating simulation test device further includes a first thermometer 42. The measuring component of the first thermometer 42 extends into the tank body 1 for detecting the temperature of the liquid in the tank body 1.

[0034] Embodiment

[0035] This device uses water as the test medium. Level the 4 level adjusters 39 at the outer bottom of the tank body 1 to keep the tank body 1 in a horizontal state; all valves and water pumps are in a closed state. Place the dipstick 3 between the upper and lower reference points, and a certain amount of water is injected into the external container 4 in advance for the test.

[0036] 1. Oil theft and filling cheating

[0037] 1.1 Behavior description

[0038] The oil thief directly discharges a certain amount of oil from the automobile oil tanker, and then fills the same volume of water or the airbag 43 into the oil tank for filling, so as to achieve oil theft cheating.

[0039] 1.2 Simulation process

[0040] Open the ninth stop valve 8, the tenth stop valve 9, the eleventh stop valve 10 and the liquid pump 12, control the instantaneous flow rate with the first regulating valve 11, draw water from the external container 4, inject it into the interior of the tank body 1 through the manhole 2, and close the ninth stop valve 8, the tenth stop valve 9, the eleventh stop valve 10 and the liquid pump 12 after the water level reaches a certain amount (at least exceeding the height position of the airbag 43). Measure the liquid level value at this time as x with the dipstick 3. Open the fifth stop valve 22, drain a part of the water in the tank body 1 to the external container 4. At this time, measure that the liquid level value drops to y with the dipstick 3, measure the mass of the drained water with the electronic scale 5, measure the temperature value with the second thermometer 13, query the density value of water according to the temperature value, and obtain the corresponding volume value of water according to the mass of water and the density value of water; the mass value or volume value of water is the cheating amount. This process is used to simulate the behavior of an oil thief stealing oil directly from a tanker. After that, in order to cover up the decrease in the liquid level value after cheating, there are two operation methods:

[0041] Method 1: Open the ninth stop valve 8, the tenth stop valve 9, the thirteenth stop valve 15 and the liquid pump 12, control the instantaneous flow rate with the third regulating valve 16, draw water from the external container 4, pump water into the interior of the tank body 1 from the bottom through the drain pipe of the tank body 1 until the liquid level value returns to x, and then close the ninth stop valve 8, the tenth stop valve 9, the thirteenth stop valve 15 and the liquid pump 12. This method is used to simulate the process of an oil thief covering up the cheating behavior by injecting water into the bottom of the tank body 1 to fill the stolen oil volume.

[0042] Method 2: Open the first stop valve 18, fill the compressed gas in the external gas source 17 into the airbag 43. The volume of the airbag 43 gradually increases, and the liquid level in the tank gradually rises until the liquid level value returns to x, and then close the first stop valve 18. This method is used to simulate the process of an oil thief covering up the cheating behavior by filling the airbag 43 in the tank body 1 to fill the stolen oil volume.

[0043] 2. Cheating by installing a hidden compartment

[0044] 2.1 Behavior description

[0045] The oil thief places a hidden box 23 in the motor vehicle fuel tanker in advance, or connects the vehicle fuel tank 26, or uses a pipeline container 31, so that the oil in the hidden box 23, the fuel tank 26 or the pipeline container 31 can be saved after the tanker unloading operation is completed, thus achieving oil theft cheating.

[0046] 2.2 Simulation process

[0047] Open the ninth stop valve 8, tenth stop valve 9, eleventh stop valve 10, and liquid pump 12. Control the instantaneous flow rate using the first regulating valve 11, pump water out of the external container 4, and inject it into the interior of the tank body 1 through the manhole 2. Wait until the water level reaches a certain amount (at least exceeding the height position of the dark box 23). At this time, the dark box 23 is already full of water. Then close the ninth stop valve 8, tenth stop valve 9, eleventh stop valve 10, and liquid pump 12. There are three operation methods afterwards:

[0048] Method 1: Open the fifth stop valve 22, completely drain the water in the tank body 1 to the external container 4, and then close the fifth stop valve 22; at this time, the water in the dark box 23 is saved; open the second stop valve 21, drain the water in the dark box 23 to the external container 4 for weighing, so as to obtain the cheating amount. This method is used to simulate the process of oil thieves using the installed dark box 23 to steal oil and cheat.

[0049] Method 2: Open the sixth stop valve 25 while opening the fifth stop valve 22. When the water in the tank body 1 is drained to the external container 4, a part of the water is also drained into the vehicle fuel tank 26; after the water in the tank body 1 is completely drained, open the seventh stop valve 28, drain the water in the vehicle fuel tank 26 to the external container 4 for weighing, so as to obtain the cheating amount. This method is used to simulate the process of oil thieves using the connected vehicle fuel tank 26 to steal oil and cheat.

[0050] Method 3: Open the third stop valve 30 and fourth stop valve 32. The water in the tank body 1 is drained to the external container 4 through the pipeline container 31. Immediately close the fourth stop valve 32 after the water level in the tank body 1 just drops to zero; at this time, the water in the pipeline container 31 is saved; open the fourth stop valve 32, drain the water in the pipeline container 31 to the external container 4 for weighing, so as to obtain the cheating amount. This method is used to simulate the process of oil thieves using the intercepted pipeline volume to steal oil and cheat.

[0051] 3. Cheating by changing the vehicle's own weight

[0052] 3.1 Behavior description

[0053] Before the vehicle enters the factory for weighing, the oil thief increases the empty vehicle's own weight of the tanker truck in various ways (usually by injecting water into the dark box 23, pipeline container 31, and vehicle water tank 36 to increase the weight). Then, after the vehicle enters the factory for weighing and before loading oil, these increased weights are removed (usually by draining the water), so as to achieve cheating in the factory loading capacity.

[0054] 3.2 Simulation process

[0055] Method 1: Refer to Method 1 in 2.2 or directly fill the dark box 23 with water. This part of the water becomes part of the empty weight of the tanker truck. Open the second stop valve 21 and drain the water in the dark box 23 into the external container 4 for weighing, so as to obtain the cheating amount. This method is used to simulate the cheating process of oil thieves who add water into the dark box 23 of the tanker truck to increase the empty vehicle self-weight.

[0056] Method 2: Open the third stop valve 30, the ninth stop valve 8, the tenth stop valve 9, the eleventh stop valve 10, and the liquid pump 12. Use the first regulating valve 11 to control the instantaneous flow rate, pump water out of the external container 4, inject it into the tank body 1 through the manhole 2. When the water level reaches a certain amount (slightly exceeding the bottom position is okay), at this time the pipeline container 31 is full of water. Then close the ninth stop valve 8, the tenth stop valve 9, the eleventh stop valve 10, and the liquid pump 12. Open the fourth stop valve 32, and the water in the tank body 1 is discharged into the external container 4 through the pipeline container 31. Immediately after the water level in the tank body 1 just drops to zero, close the fourth stop valve 32; at this time, the water in the pipeline container 31 is saved and becomes part of the empty weight of the tanker truck. Or open the fifth stop valve 22, and the water in the tank body 1 is discharged into the external container 4. After the water in the tank body 1 is completely discharged, close the fifth stop valve 22. At this time, the water in the pipeline container 31 can also be saved. Open the fourth stop valve 32, and discharge the water in the pipeline container 31 into the external container 4 for weighing, so as to obtain the cheating amount. This method is used to simulate the cheating process of oil thieves who add water into the pipeline container 31 of the tanker truck to increase the empty vehicle self-weight.

[0057] Method 3: Open the ninth stop valve 8, the tenth stop valve 9, the twelfth stop valve 34, and the liquid pump 12, pump water out of the external container 4 and inject it into the vehicle water tank 36. After filling, close the ninth stop valve 8, the tenth stop valve 9, the twelfth stop valve 34, and the liquid pump 12; at this time, the water in the vehicle water tank 36 becomes part of the empty weight of the tanker truck. Open the eighth stop valve 38, and discharge the water in the vehicle water tank 36 into the external container 4 for weighing, so as to obtain the cheating amount. This method is used to simulate the cheating process of oil thieves who add water into the water tank of the tanker truck to increase the empty vehicle self-weight.

[0058] 4. Cheating by changing the reference point

[0059] 4.1 Behavior description

[0060] Oil thieves change the positions of the upper and lower reference points in various ways, causing inaccurate oil measurement, so as to achieve oil theft cheating.

[0061] 4.2 Simulation process

[0062] Open the ninth stop valve 8, tenth stop valve 9, eleventh stop valve 10, and liquid pump 12. Control the instantaneous flow rate using the first regulating valve 11, pump water out from the external container 4, and inject it into the interior of the tank body 1 through the manhole 2. After the water level reaches a certain amount, close the ninth stop valve 8, tenth stop valve 9, eleventh stop valve 10, and liquid pump 12. Measure the liquid level value at this time as x using the dipstick 3. There are then three operating methods:

[0063] Method 1: Adjust the 4 horizontal regulators 39 at the bottom outside the tank body 1 so that the tank body 1 no longer maintains a horizontal state, then the lower reference point will necessarily change. Measure the liquid level value at this time as z has changed using the dipstick 3; respectively query the volume table of the tank body 1 based on the liquid level x and liquid level z, and subtract the two to obtain the cheating amount. This method is used to simulate the cheating process of oil thieves changing the upper and lower reference points by replacing car tires or changing tire pressure.

[0064] Method 2: Loosen the fixing screws of the manhole cover, change the direction of the manhole cover, align the screws, and reinstall. Then the upper and lower reference points will necessarily change. Measure the liquid level value at this time as z has changed using the dipstick 3; respectively query the volume table of the tank body 1 based on the liquid level x and liquid level z, and subtract the two to obtain the cheating amount. This method is used to simulate the cheating process of oil thieves changing the upper and lower reference points by changing the direction of the manhole cover.

[0065] Method 3: Increase or decrease the number of upper reference gaskets 40 and lower reference gaskets 41. Then the upper and lower reference points will necessarily change. Measure the liquid level value at this time as z has changed using the dipstick 3; respectively query the volume table of the tank body 1 based on the liquid level x and liquid level z, and subtract the two to obtain the cheating amount. This method is used to simulate the cheating process of oil thieves by adding or subtracting gaskets to the upper and lower reference points.

[0066] 5. Cheating using the oil temperature difference

[0067] 5.1 Behavior description

[0068] Cheating using the temperature difference is also called density cheating, which generally occurs in the process of converting the quality of oil products into the volume of oil products. Oil thieves deliberately use inaccurate thermometers to cause inaccurate conversion of volume, thereby achieving oil theft cheating.

[0069] 5.2 Simulation process

[0070] Lower the indication error of the first thermometer 42 by 1%, then the temperature display value measured by the first thermometer 42 is 1% smaller, that is, the measured density is 1% larger. Then the volume value converted from the same mass of oil products is 1% smaller, and 1% of the oil product transaction volume is the cheating amount; similarly, raise the indication error of the first thermometer 42 by 1%, then the volume value converted from the same mass of oil products is 1% larger, and 1% of the oil product transaction volume is the cheating amount.

[0071] The various embodiments in the specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For related parts, reference can be made to the description in the method section.

[0072] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tanker cheating simulation test device, characterized in that: include: A tank body (1), an oil dipstick (3), an external container (4), an electronic scale (5), a first pipeline (6), a second pipeline (7), a ninth stop valve (8), a tenth stop valve (9), an eleventh stop valve (10), a first regulating valve (11), a liquid pump (12) and a second thermometer (13); a manhole (2) is provided at the top of the tank body (1), the oil dipstick (3) extends into the inner bottom end of the tank body (1) through the manhole (2), the external container (4) is placed on the electronic scale (5), the first pipeline (6) is connected to the ... the ninth stop valve (8), the tenth stop valve (9), the eleventh stop valve (10), the first regulating valve (11), the liquid pump (12) and the second thermometer (13); (6) one end is connected to the external container (4), and the other end is connected to the second pipeline (7); the other end of the second pipeline (7) is connected to the tank body (1) through the manhole (2); the ninth stop valve (8), the liquid pump (12) and the tenth stop valve (9) are installed on the first pipeline (6) in sequence; the eleventh stop valve (10) and the first regulating valve (11) are installed on the second pipeline (7) in sequence; and the second thermometer (13) is placed in the external container (4).

2. The cheating simulation test device for a fuel tanker according to claim 1 is characterized in that: The invention also comprises a third pipeline (14), a thirteenth stop valve (15) and a third regulating valve (16); one end of the third pipeline (14) is connected to the first pipeline (6) and the second pipeline (7) through a tee; the other end of the third pipeline (14) is connected to the tank body (1) through the bottom end of the tank body (1); the thirteenth stop valve (15) and the third regulating valve (16) are installed on the third pipeline (14) in sequence.

3. The cheating simulation test device for a fuel tanker according to claim 1 is characterized in that: The tank body (1) further comprises an external gas source (17), a first stop valve (18) and an air bag (43); the air bag (43) is located inside the tank body (1); the external gas source (17) is connected to the air bag (43) through a pipeline; the pipeline connecting the external gas source (17) and the air bag (43) passes through the side wall of the tank body (1); the first stop valve (18) is installed on the pipeline connecting the external gas source (17) and the air bag (43) and is located outside the tank body (1).

4. The cheating simulation test device for a fuel tanker according to claim 1 is characterized in that: The tank body (1) further comprises a fourth pipeline (19), a fifth pipeline (20), a second stop valve (21) and a fifth stop valve (22); a dark box (23) is arranged at the inner bottom end of the tank body (1); the dark box (23) is arranged to be open; one end of the fourth pipeline (19) is connected to the bottom end of the tank body (1), and the other end is connected to the external container (4); the fifth stop valve (22) is installed on the fourth pipeline (19); one end of the fifth pipeline (20) is connected to the bottom end of the dark box (23), and the other end is connected to the external container (4); the second stop valve (21) is installed on the fifth pipeline (20).

5. The cheating simulation test device for a fuel tanker according to claim 4 is characterized in that: The invention also comprises a sixth pipeline (24), a sixth stop valve (25), a vehicle fuel tank (26), a seventh pipeline (27) and a seventh stop valve (28); one end of the sixth pipeline (24) is connected to the fourth pipeline (19) through a tee, and the other end is connected to the vehicle fuel tank (26); the sixth stop valve (25) is installed on the sixth pipeline (24); one end of the seventh pipeline (27) is connected to the bottom end of the vehicle fuel tank (26), and the other end is connected to the external container (4); the seventh stop valve (28) is installed on the seventh pipeline (27).

6. The cheating simulation test device for a fuel tanker according to claim 1 is characterized in that: The invention also comprises an eighth pipeline (29), a third stop valve (30), a pipeline container (31) and a fourth stop valve (32); one end of the eighth pipeline (29) is connected to the bottom end of the tank body (1), and the other end is connected to the external container (4); the third stop valve (30), the pipeline container (31) and the fourth stop valve (32) are installed in sequence on the eighth pipeline (29).

7. The cheating simulation test device for a fuel tanker according to claim 2 is characterized in that: The utility model also comprises a ninth pipeline (33), a twelfth stop valve (34), a second regulating valve (35), a vehicle water tank (36), a tenth pipeline (37) and an eighth stop valve (38); one end of the ninth pipeline (33) is connected to the third pipeline (14) through a tee, and the other end is connected to the vehicle water tank (36); the twelfth stop valve (34) and the second regulating valve (35) are installed on the ninth pipeline (33) in sequence; one end of the tenth pipeline (37) is connected to the vehicle water tank (36), and the other end is connected to the external container (4); the eighth stop valve (38) is installed on the tenth pipeline (37).

8. The cheating simulation test device for a fuel tanker according to claim 1 is characterized in that: It also comprises a level adjuster (39), wherein a plurality of the level adjusters (39) are installed on the bottom edge of the tank body (1) and are used to level the tank body (1).

9. The cheating simulation test device for a fuel tanker according to claim 1 is characterized in that: It also comprises an upper reference gasket (40) and a lower reference gasket (41), wherein the upper reference gasket (40) is placed at the top end of the manhole (2), a ruler point groove is provided at the bottom end of the tank body (1), and the lower reference gasket (41) is placed in the ruler point groove.

10. The cheating simulation test device for a fuel tanker according to claim 1, characterized in that: It also comprises a first thermometer (42), wherein a measuring component of the first thermometer (42) is inserted deep into the tank body (1) and is used to detect the temperature of the liquid in the tank body (1).

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