A circulating oil injection system and oil injection method thereof

Abstract

The present invention provides a circulating oil filling system and an oil filling method thereof. The circulating oil filling system includes: an oil storage tank, a vacuum component, a circulation pipe and a first filter component. The vacuum component is connected to the oil storage tank. The circulation pipe includes an oil filling circulation pipe and an oil outlet circulation pipe. One end of the oil filling circulation pipe is connected to the oil storage tank, and the other end is connected to the oil inlet of the oil tank. One end of the oil outlet circulation pipe is connected to the oil storage tank, and the other end is connected to the oil outlet of the oil tank. The first filter component is arranged on the circulation pipe or the oil storage tank, and the first filter component filters the oil circulating between the oil storage tank and the oil tank. The circulating oil filling of the oil tank through the circulation pipe brings out the air, moisture and impurities inside the oil tank, and the oil circulating between the oil storage tank and the oil tank is filtered by the first filter component to remove the air, moisture and impurities in the circulating oil.

Description

Technical Field

[0001] The present invention relates to the technical field of circulating oil injection, in particular to a circulating oil injection system and an oil injection method thereof. Background Art

[0002] An X-ray high-voltage generator converts power supply voltage and current into X-ray tube voltage and current. To ensure that moisture and air bubbles in the air prevent the generator's insulation from degrading, and to fully remove the gas trapped in the "air pockets" within the generator after oil filling, the oil tank must be vacuumed.

[0003] The existing technology for filling oil tanks is mostly vacuum filling, which requires the inside of the oil tank to be cleaned, dried and vacuumed beforehand, and then the oil is filled into the oil tank through an oil filling device. The operation process is complicated and tedious, and the oil filling efficiency of the oil tank is low. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the oil tank needs to be cleaned, dried and vacuumed before the inside of the oil tank can be filled with oil, which further leads to low oil filling efficiency of the oil tank.

[0005] To this end, the present invention proposes a circulating oil injection system, comprising:

[0006] oil storage tanks;

[0007] a vacuum assembly, connected to the oil storage tank;

[0008] Circulation pipeline, including oil injection circulation pipeline and oil discharge circulation pipeline;

[0009] One end of the oil filling circulation pipe is connected to the oil storage tank, and the other end is suitable for connecting to the oil inlet of the oil tank;

[0010] One end of the oil circulation pipe is connected to the oil storage tank, and the other end is suitable for connecting to at least the oil outlet of the oil tank;

[0011] The first filter assembly is arranged on the circulation pipeline or the oil storage tank and is suitable for filtering the oil circulating between the oil storage tank and the oil tank.

[0012] Furthermore, it also includes a shaking component;

[0013] The rocking assembly includes a rocking platform and a rocking motor suitable for driving the rocking platform;

[0014] The rocking platform is suitable for arranging at least one oil tank.

[0015] Furthermore, a sampling port is provided on the circulation pipeline between the oil outlet of the oil tank and the first filter assembly.

[0016] Furthermore, the oil filling circulation pipeline is connected to a plurality of oil filling branches, and the oil filling branches are connected to the oil inlet of the oil tank; the oil outlet circulation pipeline is connected to a plurality of oil outlet branches, and the oil outlet branches are connected to the oil outlet of the oil tank;

[0017] A second flow meter, a proportional valve and a second pneumatic valve are respectively provided on the oil injection branch line.

[0018] Furthermore, a defoaming component connected to the oil outlet circulation pipeline is provided in the oil storage tank.

[0019] Furthermore, the oil storage tank is connected to a sampling pipe;

[0020] A first manual valve is provided on the sampling pipeline, and the sampling pipeline is connected to the oil storage tank via the first manual valve;

[0021] A second manual valve is provided on the sampling pipeline, and the sampling pipeline is connected to the outside through the second manual valve;

[0022] An oil cup is also provided on the sampling pipeline, and the oil cup is provided between the first manual valve and the second manual valve.

[0023] Furthermore, a driver is provided on the oil injection circulation pipeline;

[0024] The first filter assembly is arranged on the circulation pipe;

[0025] The oil injection circulation pipeline is also provided with a switch valve, a third flow meter and a pressure gauge.

[0026] Furthermore, it also includes an oil filter tank, which is connected to the oil storage tank;

[0027] The oil filter canister is in communication with the vacuum assembly;

[0028] The oil filter tank is connected to the delivery pipeline; the delivery pipeline is connected to the crude oil inlet pipeline;

[0029] The oil filter tank is connected to the oil filter pipeline; the oil filter pipeline is connected to the delivery pipeline; a second filter assembly is provided on the oil filter pipeline;

[0030] The oil filter pipeline is respectively provided with a switch valve and a drive component.

[0031] Furthermore, it also includes a clean oil tank;

[0032] The oil purification tank is in communication with the vacuum assembly;

[0033] The oil filter tank is connected to the oil storage tank via the oil purification tank;

[0034] The oil purification tank is provided with an oil pipeline connected to the oil storage tank;

[0035] The oil pipeline is provided with an on-off valve, a driving device and a first flow meter.

[0036] To this end, the present invention also proposes a circulating oil injection method, comprising the following steps:

[0037] S1. Start the vacuum assembly to vacuum the oil storage tank, the circulation pipeline, and the oil tank; fix the oil tank on the swing table so that the oil inlet of the oil tank is connected to the oil filling circulation pipeline, and the oil outlet of the oil tank is connected to the oil outlet circulation pipeline;

[0038] S2. Start the driver to circulate the oil in the oil storage tank into the oil tank, and at the same time, the first filter assembly filters the oil circulated out of the oil tank;

[0039] S3. Check the quality of the circulating oil from the sampling port; if the quality meets the standard, proceed to S4; if the quality does not meet the standard, repeat S2;

[0040] S4. After the oil filling is completed, remove the circulation pipe on the oil tank and start the oil tank self-sealing device to close the oil inlet and outlet.

[0041] Furthermore, step S is performed between steps S2 and S3: starting the rocking platform to rock the oil tank fixed on the rocking platform.

[0042] The technical solution of the present invention has the following advantages:

[0043] 1. The circulating oil injection system provided herein comprises an oil storage tank, a vacuum assembly, a circulation pipeline, and a first filter assembly. The vacuum assembly is connected to the oil storage tank. The circulation pipeline comprises an oil injection circulation pipeline and an oil discharge circulation pipeline. The oil injection circulation pipeline is connected to the oil storage tank at one end and to the oil inlet of the oil tank at the other end. The oil discharge circulation pipeline is connected to the oil storage tank at one end and to the oil outlet of the oil tank at the other end. The first filter assembly is disposed on the circulation pipeline or the oil storage tank and filters the oil circulating between the oil storage tank and the oil tank.

[0044] The circulating oil filling system provided by this structure uses a vacuum component to evacuate the oil storage tank, the circulation pipeline, and the oil tank, ensuring that the oil in the oil storage tank is filled into the oil tank under a vacuum environment. The oil inlet of the oil tank is connected to the oil filling circulation pipeline, and the oil outlet of the oil tank is connected to the oil outlet circulation pipeline. The circulating oil filling of the oil tank through the circulation pipeline brings out the air, moisture, and impurities inside the oil tank, and the oil circulating between the oil storage tank and the oil tank is filtered by the first filter component to remove the air, moisture, and impurities in the circulating oil. Therefore, there is no need to clean, dry, and vacuum the interior of the oil tank before filling it with oil, which simplifies the oil tank filling workflow, improves the oil tank filling efficiency, can efficiently complete mass production, and ensures the consistency of the oil tank filling quality.

[0045] 2. The circulating oil filling system provided by the present invention also includes a swing platform and a swing motor. The swing platform is suitable for placing the oil tank. The swing motor drives the swing platform to drive the oil tank to shake, thereby accelerating the flow of impurities inside the oil tank and bubbles attached to the side wall of the oil tank out of the oil tank, reducing the number of circulating oil filling and filtration, and further improving the oil tank filling efficiency.

[0046] 3. The circulating oil filling system provided by the present invention also includes a sampling port, which is arranged on the circulating oil pipeline between the oil outlet of the oil tank and the first filter component. By detecting the oil taken out of the sampling port, the quality of the oil injected into the oil tank can be further judged.

[0047] 4. The circulating oil injection system provided by the present invention has several oil injection branch lines connected to the oil injection circulation pipeline, which are connected to the oil inlet of the oil tank. Several oil outlet branch lines are connected to the oil outlet circulation pipeline, which are connected to the oil outlet of the oil tank. A second flow meter, a proportional valve, and a second pneumatic valve are respectively provided on the oil injection branch lines to precisely control the oil injection volume and the opening and closing status of the oil injection branch lines.

[0048] 5. The circulating oil injection system provided by the present invention has a defoaming component installed in the oil storage tank, and the defoaming component is connected to the oil outlet circulation pipeline to ensure that the oil injected into the oil storage tank from the oil outlet circulation pipeline is defoamed by the defoaming component, thereby reducing the generation of bubbles in the oil.

[0049] 6. The circulating oil filling system provided by the present invention has a sampling pipe provided on the oil storage tank, through which the oil inside the oil storage tank in a vacuum state can be smoothly taken out, and the quality of the oil in the oil storage tank can be further tested.

[0050] 7. The circulating oil injection system provided by the present invention further includes an oil filter tank and a second filter assembly, through which the crude oil can be filtered, and the filtered oil can be further injected into the oil storage tank.

[0051] 8. The circulating oil injection system provided by the present invention also includes an oil purification tank, which is connected to the oil filter tank and the oil storage tank respectively. The oil purification tank stores the oil filtered by the oil filter tank, and further injects the filtered oil into the oil storage tank through the oil purification tank, ensuring that the oil storage tank can be injected with oil that meets the quality standards at any time.

[0052] 9. The circulating oil filling method provided by the present invention starts the vacuum component to vacuum the oil storage tank, the circulating pipe and the oil tank. Fix the oil tank on the swing table so that the oil inlet of the oil tank is connected to the oil filling circulating pipe, and the oil outlet of the oil tank is connected to the oil outlet circulating pipe. Start the driver to circulate the oil in the oil storage tank into the oil tank, and at the same time, the first filter component filters the oil circulated out of the oil tank. Check the quality of the circulating oil from the sampling port; if the quality meets the standard, the oil filling is completed, the circulating pipe on the oil tank is removed, and the oil tank self-sealing device is started to seal the oil inlet and outlet. If the quality does not meet the standard, continue the circulating oil filling until the quality of the oil in the tank meets the standard, remove the circulating pipe on the oil tank, and at the same time, start the oil tank self-sealing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0054] Figure 1 Schematic diagram of the circulating oil injection system in Example 1 of the present invention;

[0055] Figure 2 This is a schematic diagram of the connections between the oil storage tank, the oil filter tank, and the oil purification tank of the circulating oil injection system in Example 1 of the present invention;

[0056] Figure 3 This is a schematic structural diagram of the oil storage tank in the circulating oil injection system in Example 1 of the present invention;

[0057] Figure 4 This is a structural diagram of the oil tank placement in the circulating oil filling system in Example 1 of the present invention.

[0058] Description of reference numerals:

[0059] 1. Vacuum components;

[0060] 2. Vacuum pipeline main line; 201. First vacuum pipeline branch line; 202. Fifth pneumatic valve; 203. First piercing valve; 204. Second vacuum pipeline branch line; 205. Third vacuum pipeline branch line; 206. Fourth pneumatic valve; 207. Second piercing valve;

[0061] 3. Oil storage tank; 301. Defoaming assembly; 302. Third manual valve; 303. Fourth manual valve; 304. Liquid level indicator; 305. First manual valve; 306. Oil cup; 307. Second manual valve; 308. Sampling pipe; 309. Oil drain pipe; 310. Fifth manual valve; 311. First temperature sensor; 312. Second temperature sensor; 313. Pneumatic breaker valve; 314. Manual breaker valve; 315. Mechanical vacuum gauge;

[0062] 4. Oil injection circulation pipeline; 401. Third pneumatic valve; 402. First oil pump; 403. First relief valve; 404. First pressure sensor; 405. First filter assembly; 406. Sixth manual valve; 407. Third flow meter; 408. Pressure gauge; 409. Oil injection branch line; 410. Second flow meter; 411. Proportional valve; 412. Second pneumatic valve;

[0063] 5. Oil circulation pipeline;

[0064] 6. Oil tank; 7. Swing table; 8. Swing motor; 9. Sampling port; 10. First pneumatic valve; 11. Crude oil inlet pipeline; 12. Sixth pneumatic valve; 13. Delivery pipeline; 14. Seventh pneumatic valve; 15. Oil filter tank; 16. Oil filter pipeline; 17. Seventh manual valve; 18. Eighth pneumatic valve; 19. Ninth pneumatic valve; 20. Second oil pump; 21. Second overflow valve; 22. Second pressure sensor; 23. Eighth manual valve; 24. Second filter assembly; 25. Ninth manual valve; 26. Tenth pneumatic valve; 27. Eleventh pneumatic valve; 28. Oil clean tank; 29. ​​Oil pipeline; 30. Tenth manual valve; 31. Twelfth pneumatic valve; 32. Thirteenth pneumatic valve; 33. Third oil pump; 34. First flowmeter; 35. Fourteenth pneumatic valve. DETAILED DESCRIPTION

[0065] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0066] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0067] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0068] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0069] Example 1

[0070] This embodiment provides a circulating oil injection system, such as Figure 1 As shown, the system comprises: an oil storage tank 3, a vacuum assembly 1, a circulation pipeline, and a first filter assembly 405. The vacuum assembly 1 is connected to the oil storage tank 3. The circulation pipeline includes an oil filling circulation pipeline 4 and an oil discharge circulation pipeline 5. The oil filling circulation pipeline 4 is connected to the oil storage tank 3 at one end and to the oil inlet of the oil tank 6 at the other end. The oil discharge circulation pipeline 5 is connected to the oil storage tank 3 at one end and to the oil outlet of the oil tank 6 at the other end. The first filter assembly 405 is disposed on the circulation pipeline or the oil storage tank 3 and filters the oil circulating between the oil storage tank 3 and the oil tank 6.

[0071] The circulating oil filling system provided by this structure evacuates the oil storage tank 3, the circulation pipeline and the oil tank 6 through the vacuum component 1, ensuring that the oil in the oil storage tank 3 is filled into the oil tank 6 under a vacuum environment. The oil inlet of the oil tank 6 is connected to the oil filling circulation pipeline 4, and the oil outlet of the oil tank 6 is connected to the oil outlet circulation pipeline 5. The circulating oil filling of the oil tank 6 through the circulation pipeline brings out the air, moisture and impurities inside the oil tank 6, and the oil circulating between the oil storage tank 3 and the oil tank 6 is filtered by the first filter component 405 to remove the air, moisture and impurities in the circulating oil. Therefore, before filling the oil tank 6 with oil, there is no need to clean, dry and vacuum the interior of the oil tank 6, which simplifies the oil filling workflow of the oil tank 6, improves the oil filling efficiency of the oil tank 6, can efficiently complete mass production, and ensure the consistency of the oil filling quality of the oil tank 6.

[0072] Specifically, such as Figure 1 As shown, a first pneumatic valve 10 can be provided on the oil circulation pipeline 5 .

[0073] Specifically, such as Figure 1 As shown, it also includes a rocking assembly. The rocking assembly includes a rocking platform 7 and a rocking motor 8, and the rocking motor 8 is connected to the rocking platform 7, and the rocking platform 7 is driven to rock by the rocking motor 8. The rocking platform 7 is suitable for placing at least one oil tank 6. Furthermore, in order to prevent the oil tank 6 on the rocking platform 7 from moving when the rocking platform 7 rocks, a device for fixing the oil tank 6 can be provided on the rocking platform 7 to prevent the oil tank 6 from moving on the rocking platform 7. For example, a buckle corresponding to the oil tank 6 is provided on the rocking platform 7, and the oil tank 6 is fixed by the buckle. Alternatively, a strap for fixing the oil tank 6 is provided on the rocking platform 7. The rocking motor 8 drives the rocking platform 7 to rock the oil tank 6, thereby accelerating the outflow of impurities inside the oil tank 6 and bubbles attached to the side wall of the oil tank 6 from the oil tank 6, reducing the number of circulating oil filling and filtration, and further improving the oil filling efficiency of the oil tank 6.

[0074] Specifically, such as Figure 1 As shown, a sampling port 9 is provided on the circulation pipe between the oil outlet of the fuel tank 6 and the first filter assembly 405. In other words, the oil withdrawn from the sampling port 9 is of the same quality as the oil in the fuel tank 6. By testing the oil withdrawn from the sampling port 9, the quality of the oil injected into the fuel tank 6 can be further determined. If the tested oil quality meets the standards, the filling of the fuel tank 6 is complete. If the tested oil quality does not meet the standards, the fuel tank 6 needs to be continuously filled.

[0075] Specifically, such as Figure 1 and Figure 4 As shown, the oil filling circulation pipeline 4 is connected to a plurality of oil filling branches 409, and the oil filling branches 409 are connected to the oil inlet of the oil tank 6. The oil outlet circulation pipeline 5 is connected to a plurality of oil outlet branches, and the oil outlet branches are connected to the oil outlet of the oil tank 6. Figure 4As shown, the oil injection branch line 409 is provided with a second flow meter 410, a proportional valve 411 and a second pneumatic valve 412 to accurately control the oil injection amount of the oil injection branch line 409 and control the oil injection branch line 409 to switch between the open and closed states.

[0076] Specifically, such as Figure 3 As shown, a defoaming component 301 is provided in the oil storage tank 3, wherein the oil outlet circulation pipe 5 is connected to the defoaming component 301 to ensure that the oil injected from the oil outlet circulation pipe 5 into the oil storage tank 3 is defoamed by the defoaming component 301, thereby reducing the generation of bubbles in the oil.

[0077] Specifically, such as Figure 3 As shown, a sampling pipe 308 is connected to the oil storage tank 3. A first manual valve 305 is installed on the sampling pipe 308, connecting the sampling pipe 308 to the oil storage tank 3 via the first manual valve 305. A second manual valve 307 is also installed on the sampling pipe 308, connecting the sampling pipe 308 to the outside world via the second manual valve 307. An oil cup 306 is installed on the sampling pipe 308, located between the first and second manual valves 305, 307. The sampling pipe 308 allows for the smooth removal of oil from the evacuated oil storage tank 3, allowing further quality testing of the oil within the oil storage tank 3. The first and second manual valves 305, 307 on the sampling pipe 308 are closed by default. To sample the oil storage tank 3, the first manual valve 305 is first opened, allowing the oil within the evacuated oil storage tank 3 to flow into the oil cup 306, preventing contact between the oil within the oil storage tank 3 and the outside air. When the amount of oil in the oil cup 306 reaches the sampling amount, the first manual valve 305 is closed and the second manual valve 307 is opened to allow the oil in the oil cup 306 to flow out, thereby completing the sampling.

[0078] Specifically, such as Figure 1 As shown, the oil circulation pipeline 4 is provided with a driver, which may be a first oil pump 402. A first relief valve 403 and a first pressure sensor 404 are also provided on the oil circulation pipeline 4. The first relief valve 403 and the first pressure sensor 404 are electrically connected. The first relief valve 403 serves as a safety protection in the system. When the system pressure exceeds a specified value, the safety valve opens, discharging some of the gas in the system into the atmosphere, keeping the system pressure within the allowable value and thus preventing accidents caused by excessive pressure.

[0079] Specifically, such as Figure 1 As shown, the first filter assembly 405 is arranged on the circulation pipeline. The first filter assembly 405 can be arranged on the oil injection circulation pipeline 4 or on the oil discharge circulation pipeline 5.

[0080] Specifically, such as Figure 1As shown, the oil circulation pipeline 4 is also equipped with an on-off valve, a third flowmeter 407, and a pressure gauge 408. The on-off valve includes a third pneumatic valve 401 and a sixth manual valve 406, which are used to control the opening and closing of the oil circulation pipeline 4. The third flowmeter 407 is used to detect the oil flow rate in the oil circulation pipeline 4. The pressure gauge 408 is used to detect the pressure within the oil circulation pipeline 4.

[0081] Specifically, such as Figure 2 As shown, the circulating oil injection system also includes an oil filter canister 15, which is connected to the oil storage tank 3 and is in turn connected to a vacuum assembly 1. The vacuum assembly 1 is connected to a main vacuum pipeline 2, which includes a second branch vacuum pipeline 204, which is in communication with the oil filter canister 15. A fifth pneumatic valve 202 and a first air-breaking valve 203 are provided on the second branch vacuum pipeline 204.

[0082] Specifically, such as Figure 2 As shown, the oil filter tank 15 is connected to the delivery pipeline 13, which is in turn connected to the crude oil inlet pipeline 11. The oil filter tank 15 is connected to the oil filter pipeline 16, which is in communication with the delivery pipeline 13. A second filter assembly 24 is provided on the oil filter pipeline 16, adapted to filter the oil within the oil filter pipeline 16. The crude oil is filtered by the oil filter tank 15 and the second filter assembly 24, and the filtered oil is then injected into the oil storage tank 3.

[0083] Specifically, such as Figure 2 As shown, the oil filter pipe 16 is provided with a switch valve and a drive assembly. Among them, the switch valve includes a seventh manual valve 17, an eighth pneumatic valve 18, a ninth pneumatic valve 19, an eighth manual valve 23, a ninth manual valve 25 and a tenth pneumatic valve 26. The drive assembly includes a second oil pump 20, a second overflow valve 21 and a second pressure sensor 22, and the second overflow valve 21 and the second pressure sensor 22 are electrically connected. The second overflow valve 21 plays a safety protection role in the system. When the system pressure exceeds the specified value, the safety valve opens and discharges part of the gas in the system into the atmosphere, so that the system pressure does not exceed the allowable value, thereby ensuring that the system does not cause accidents due to excessive pressure. Specifically, as Figure 2 As shown, a sixth pneumatic valve 12 may be provided on the crude oil inlet pipeline 11 .

[0084] Specifically, such as Figure 2As shown, the circulating oil injection system also includes a clean oil tank 28. Clean oil tank 28 is connected to the vacuum assembly 1. A third vacuum branch line 205 is also provided on the main vacuum pipeline 2. This third vacuum branch line 205 is connected to the clean oil tank 28. The vacuum assembly 1 evacuates the interior of the clean oil tank 28 via the main vacuum pipeline 2 and the third vacuum branch line 205. A fourth pneumatic valve 206 and a second air-breaking valve 207 are provided on the third vacuum branch line 205.

[0085] Specifically, such as Figure 2 As shown, the oil filter tank 15 is connected to the oil storage tank 3 via the oil purifier tank 28. The oil filter tank 15 and the oil purifier tank 28 are connected via a delivery pipeline 13. The delivery pipeline 13 may be provided with an eleventh pneumatic valve 27, which allows the oil filtered by the oil filter tank 15 to be injected into the oil purifier tank 28. A seventh pneumatic valve 14 is provided on the delivery pipeline 13 to control the flow of oil from the delivery pipeline 13 into the oil filter tank 15. The oil purifier tank 28 is provided with an oil delivery pipeline 29 that connects to the oil storage tank 3.

[0086] Specifically, such as Figure 2 As shown, an oil pipeline 29 is provided on the oil purification tank 28, one end of which is connected to the oil storage tank 3. The oil pipeline 29 is provided with a tenth manual valve 30, a twelfth pneumatic valve 31, a third oil pump 33, a first flow meter 34 and a fourteenth pneumatic valve 35.

[0087] This embodiment also provides a circulating oil injection method, such as Figure 1 As shown, the following steps are included:

[0088] S1. Start the vacuum assembly 1 to evacuate the oil storage tank 3, the circulation pipeline, and the oil tank 6; fix the oil tank 6 on the swing platform 7, connect the oil inlet of the oil tank 6 with the oil filling circulation pipeline 4, and connect the oil outlet of the oil tank 6 with the oil outlet circulation pipeline 5;

[0089] S2. Start the driver to circulate the oil in the oil storage tank 3 into the oil tank 6. Meanwhile, the first filter assembly 405 filters the oil circulated out of the oil tank 6.

[0090] S3. Check the quality of the circulating oil from the sampling port 9; if the quality meets the standard, proceed to S4; if the quality does not meet the standard, repeat S2;

[0091] S4. After the oil filling is completed, the circulation pipe on the oil tank 6 is removed, and at the same time, the self-sealing device of the oil tank 6 is started to close the oil inlet and outlet.

[0092] Specifically, step S21 can be performed between steps S2 and S3: start the swing platform 7, shake the oil tank 6 fixed on the swing platform 7, accelerate the flow of impurities inside the oil tank 6 and bubbles attached to the side wall of the oil tank 6 out of the oil tank 6, reduce the number of cyclic oil filling and filtration, and further improve the oil filling efficiency of the oil tank 6.

[0093] When filling the oil tank 6, if Figure 1 As shown, the oil tank 6 is secured to the rocking platform 7, with the oil inlet of the oil tank 6 connected to the oil filling branch line 409 and the oil outlet of the oil tank 6 connected to the oil outlet branch line. The vacuum assembly 1 is then activated, and the oil storage tank 3, the circulation pipeline, and the oil tank 6 are evacuated. The first oil pump 402 and the rocking motor 8 are then activated, allowing the oil in the oil storage tank 3 to circulate into the oil tank 6. This oil filling through the circulation pipeline removes air, moisture, and impurities from the oil tank 6. The oil circulating between the oil storage tank 3 and the oil tank 6 is then filtered by the first filter assembly 405 to remove air, moisture, and impurities from the circulating oil. The quality of the circulating oil can be tested through the sampling port 9. If the quality meets the standards, the oil filling is complete, the circulation pipeline is removed from the oil tank 6, and the automatic sealing device between the oil tank 6 and the circulation pipeline is activated to seal the oil inlet and outlet. The automatic sealing device between the oil tank 6 and the circulation pipeline can be spring-loaded. This automatic sealing device is conventional and will not be described in detail here. If the quality does not meet the standard, continue to circulate the oil until the oil quality meets the standard and the oil filling is completed.

[0094] The principle of oil filter tank 15 and oil clean tank 28 filling oil into oil storage tank 3 is as follows: Figure 2 As shown, crude oil can be injected into the delivery pipeline 13 through the crude oil inlet pipeline 11 and then delivered to the oil filter tank 15 through the delivery pipeline 13. A defoaming assembly 301 can be installed inside the oil filter tank 15. The oil in the oil filter tank 15 is filtered through the second filter assembly 24 through the oil filter pipeline 16. The filtered oil is then injected into the oil filter tank 15 and filtered repeatedly until the oil in the oil filter tank 15 meets the quality standards. The oil in the oil filter tank 15 is then delivered to the clean oil tank 28 through the oil filter pipeline 16 and the delivery pipeline 13. The clean oil tank 28 can deliver the oil that meets the quality standards to the oil storage tank 3 through the oil delivery pipeline 29. If the oil in the clean oil tank 28 is subsequently tested to be of substandard quality, the oil in the clean oil tank 28 can be delivered to the oil filter pipeline 16 through the oil delivery pipeline 29, filtered through the second filter assembly 24, and then delivered to the clean oil tank 28 through the delivery pipeline 13 after the filtration is complete.

[0095] As a first replaceable embodiment of Example 1, the first filter component 405 can be set on the oil storage tank 3, and the circulation pipeline brings the oil in the oil tank 6 into the oil storage tank 3. The oil inside the oil storage tank 3 is filtered by the first filter component 405, and the filtered oil is further injected into the oil tank 6.

[0096] As a variation, the first filter assembly 405 may also be disposed inside the oil storage tank 6 .

[0097] As a second alternative implementation of Example 1, Figure 2 As shown, the vacuum pipeline main line 2 also includes a first vacuum pipeline branch line 201, which is connected to the oil storage tank 3. The vacuum component 1 vacuumizes the oil storage tank 3 through the vacuum pipeline main line 2 and the first vacuum pipeline branch line 201.

[0098] As a third alternative implementation of Example 1, Figure 2 As shown, the oil delivery pipeline 29 can be connected to the oil filter pipeline 16, and a thirteenth pneumatic valve 32 is provided at the connection. If the oil quality inside the clean oil tank 28 is detected to be substandard, the thirteenth pneumatic valve 32 can be opened to inject the oil inside the clean oil tank 28 into the oil filter tank 15 for filtration.

[0099] Example 2

[0100] This embodiment provides a circulating oil injection system, which is different from the circulating oil injection system provided in Example 1 in that: Figure 3 As shown, the oil storage tank 3 is provided with a first temperature sensor 311 and a second temperature sensor 312, wherein the first temperature sensor 311 can be provided inside the oil storage tank 3 and is suitable for detecting the oil temperature inside the oil storage tank 3. The second temperature sensor 312 can be provided outside the oil storage tank 3 and is suitable for detecting the temperature outside the oil storage tank 3.

[0101] Specifically, a pneumatic air-breaking valve 313 and a manual air-breaking valve 314 may be provided on the oil storage tank 3 .

[0102] Specifically, a mechanical vacuum gauge 315 may be provided on the oil storage tank 3 .

[0103] Specifically, an oil discharge pipeline 309 is provided on the oil storage tank 3 , and a fifth manual valve 310 may be provided on the oil discharge pipeline 309 .

[0104] Specifically, a liquid level indicator 304 is provided on the oil storage tank 3 to display the oil reserve in the oil storage tank 3. For example, a third manual valve 302 and a fourth manual valve 303 are provided on the oil storage tank 3, and the third manual valve 302 and the fourth manual valve 303 are respectively connected to the liquid level indicator 304.

[0105] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A circulating oil injection system, characterized in that: include: Oil storage tanks (3); A vacuum assembly (1) is connected to the oil storage tank (3); A circulation pipeline, comprising an oil injection circulation pipeline (4) and an oil outlet circulation pipeline (5); One end of the oil filling circulation pipe (4) is connected to the oil storage tank, and the other end is suitable for connecting to the oil inlet of the oil tank (6); One end of the oil circulation pipe (5) is connected to the oil storage tank, and the other end is suitable for connecting to the oil outlet of the oil tank (6); a first filter assembly (405), arranged on the circulation pipe or the oil storage tank (3), adapted to filter the oil circulating between the oil storage tank (3) and the oil tank (6); It also includes an oil filter tank (15) which is in communication with the oil storage tank (3); The oil filter tank (15) is in communication with the vacuum assembly (1); the vacuum assembly (1) is in communication with a vacuum pipeline main line (2), the vacuum pipeline main line (2) includes a second vacuum pipeline branch line (204), and the second vacuum pipeline branch line (204) is in communication with the oil filter tank (15); The oil filter tank (15) is connected to the delivery pipeline (13); the delivery pipeline (13) is connected to the crude oil inlet pipeline (11); The oil filter tank (15) is connected to an oil filter pipe (16); the oil filter pipe (16) is connected to the delivery pipe (13); a second filter assembly (24) is provided on the oil filter pipe (16); Also included is a clean oil tank (28); The oil cleaning tank (28) is in communication with the vacuum assembly (1); a third vacuum pipeline branch line (205) is further provided on the vacuum pipeline main line (2), and the third vacuum pipeline branch line (205) is in communication with the oil cleaning tank (28); The oil filter tank (15) is connected to the oil storage tank (3) via the oil purification tank (28); The oil cleaning tank (28) is provided with an oil pipeline (29) communicating with the oil storage tank (3); The vacuum pipeline main line (2) further includes a first vacuum pipeline branch line (201), and the first vacuum pipeline branch line (201) is connected to the oil storage tank (3).

2. The circulating oil injection system according to claim 1, characterized in that: Also includes a shake assembly; The shaking assembly comprises a shaking platform (7) and a shaking motor (8) suitable for driving the shaking platform (7); The swing platform (7) is suitable for arranging at least one oil tank (6).

3. The circulating oil injection system according to claim 1, characterized in that: A sampling port (9) is provided on a circulation pipeline between the oil outlet of the oil tank (6) and the first filter assembly (405).

4. The circulating oil injection system according to claim 1, characterized in that: The oil injection circulation pipeline (4) is connected to a plurality of oil injection branch lines (409), and the oil injection branch lines (409) are correspondingly connected to the oil inlet of the oil tank (6); the oil outlet circulation pipeline (5) is connected to a plurality of oil outlet branch lines, and the oil outlet branch lines are correspondingly connected to the oil outlet of the oil tank (6); The oil injection branch line (409) is respectively provided with a second flow meter (410), a proportional valve (411) and a second pneumatic valve (412).

5. The circulating oil injection system according to claim 1, characterized in that: A defoaming component (301) connected to the oil outlet circulation pipe (5) is provided in the oil storage tank (3).

6. The circulating oil injection system according to claim 5, characterized in that: The oil storage tank (3) is connected to a sampling pipe (308); A first manual valve (305) is provided on the sampling pipe (308), and the sampling pipe (308) is connected to the oil storage tank (3) via the first manual valve (305); A second manual valve (307) is provided on the sampling pipe (308), and the sampling pipe (308) is connected to the outside world via the second manual valve (307); An oil cup (306) is also provided on the sampling pipe (308), and the oil cup (306) is provided between the first manual valve (305) and the second manual valve (307).

7. The circulating oil injection system according to any one of claims 1 to 6, characterized in that: A driver is provided on the oil injection circulation pipeline (4); The first filter assembly (405) is arranged on the circulation pipeline; The oil injection circulation pipeline (4) is also provided with an on-off valve, a third flow meter (407) and a pressure gauge (408).

8. The circulating oil injection system according to any one of claims 1 to 6, characterized in that: The oil filter pipeline (16) is respectively provided with a switch valve and a drive component.

9. The circulating oil injection system according to claim 8, characterized in that: The oil pipeline (29) is provided with an on-off valve, a driving device and a first flow meter (34).

10. A circulating oil injection method for a circulating oil injection system according to any one of claims 1 to 9, characterized in that: The steps include: S1. Start the vacuum assembly (1) to perform vacuum treatment on the oil storage tank (3), the circulation pipeline and the oil tank (6); fix the oil tank (6) on the swing platform (7), connect the oil inlet of the oil tank (6) with the oil filling circulation pipeline (4), and connect the oil outlet of the oil tank (6) with the oil outlet circulation pipeline (5); S2, starting the driver to circulate the oil in the oil storage tank (3) into the oil tank (6), while the first filter assembly (405) filters the oil circulated out of the oil tank (6); S3, testing the quality of the circulating oil from the sampling port (9); if the quality meets the standard, proceed to S4; if the quality does not meet the standard, repeat S2; S4. After the oil filling is completed, the circulation pipe on the oil tank (6) is removed, and at the same time, the self-sealing device of the oil tank (6) is started to close the oil inlet and outlet.

11. The circulating oil injection method according to claim 10, characterized in that: Step S21 is performed between steps S2 and S3: starting the swing platform (7) to shake the oil tank (6) fixed on the swing platform (7).

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