A crude oil quality inspection rapid automatic sampling device and method

Abstract

The present application relates to the field of petroleum detection, and particularly relates to a crude oil quality inspection rapid automatic sampling device and method, which comprises an oil storage bucket, a material taking pipe is penetrated through the lower end of the oil storage bucket, a plurality of arc-shaped through grooves are formed on the outer side of the material taking pipe, a plugging assembly for plugging the arc-shaped through grooves is arranged in the material taking pipe, a connecting pipe is throughly arranged at the bottom of the material taking pipe, a detection cylinder is inserted on one side of the connecting pipe, a heating plate is arranged on the inner bottom wall of the detection cylinder, a pushing unit for heating crude oil is slidably arranged in the detection cylinder, the plugging assembly can flexibly control the crude oil into the material taking pipe, and the adjustable structure can accurately correspond to different depths of the oil storage bucket; this makes the device automatically and accurately take samples of crude oil at different depths in the oil storage bucket; compared with traditional manual sampling, the sampling efficiency is greatly improved, errors caused by fatigue, judgment errors and the like of manual operation are avoided, time cost is greatly saved, and the representativeness and accuracy of the crude oil sample are ensured.

Description

Technical Field

[0001] The present invention relates to the field of petroleum detection, and in particular to a rapid automatic sampling device and method for crude oil quality inspection. Background Art

[0002] In the field of crude oil extraction, crude oil extracted from underground is generally stored in large tanks. Extracting and testing the crude oil in the tanks is of great significance. Testing indicators such as crude oil density, viscosity, sulfur content, and water content can provide a basis for subsequent processing technology and can also evaluate its impact on equipment and the environment.

[0003] However, the existing technology has obvious shortcomings. When extracting crude oil at different depths, the equipment needs to be manually inserted into the opening at the top of the tank for extraction, which is labor-intensive and poses safety risks. The cleaning of the extraction equipment relies on manual labor, which is troublesome and prone to residual impurities, affecting the accuracy of the sample.

[0004] In addition, crude oil needs to be transferred to independent equipment during testing, and the equipment needs to be cleaned after testing. The process is cumbersome and can easily cause sample contamination or loss. Moreover, oil often needs to be heated during testing. After heating, some existing equipment will adhere to the surface of the test device, which is difficult to remove later, further increasing the difficulty of equipment cleaning and testing costs.

[0005] Prior art, such as patent publication number CN113687051A, discloses an automated extraction and detection analyzer for oil collection. A demister plate and a demister sponge wipe away mist from the analyzer's sidewalls, preventing it from obstructing the inspector's view. Simultaneously, a stirring plate stirs the oil within the analyzer, ensuring even heating. Rotating scrapers remove any oil adhering to the analyzer's inner walls, preventing it from clinging. While this technology addresses some existing issues, further optimization is still needed to better meet practical testing needs.

[0006] 1. The above-mentioned existing technology has significant deficiencies in sampling and detection flexibility. It can only operate on the oil in a single analyzer body and cannot obtain crude oil samples at different depths in the crude oil storage tank. It cannot meet the detection requirements of the differences in crude oil composition at different depths. Moreover, the device can only detect the oil related to a fixed tank body and is difficult to flexibly cooperate with multiple tanks to carry out detection work. In actual application scenarios, it has poor versatility and cannot adapt to diverse detection tasks.

[0007] 2. The above-mentioned existing technology has great deficiencies in detection function. Its function is relatively single and can only realize basic operations such as stirring and heating of oil and oil vapor recovery. It is unable to simultaneously detect multiple indicators of the gas generated during the heating process of oil.

[0008] Therefore, based on the above-stated viewpoint, there is still room for optimization in the existing technology for crude oil extraction and testing. Summary of the Invention

[0009] In order to solve the above problems, the present invention provides a rapid automatic sampling device for crude oil quality inspection, including an oil storage barrel, a feeding pipe passing through the lower end of the oil storage barrel, a plurality of arc-shaped grooves are opened on the outside of the feeding pipe, a sealing assembly for sealing the arc-shaped grooves is provided in the feeding pipe, a connecting pipe is provided through the bottom of the feeding pipe, a detection cylinder is inserted into one side of the connecting pipe, a heating plate is provided on the bottom wall of the detection cylinder, and a pushing unit for heating the crude oil slides inside the detection cylinder.

[0010] Several partition plates are also provided on the inner wall of the detection cylinder, which divide the area at the upper end of the detection cavity into several detection cavities, and detection components are provided in the detection cavities.

[0011] Preferably, the pushing unit includes a circular frame plate that slides in the detection cylinder, a sealing plate that rotates in the circular frame plate, and through grooves are formed on the sealing plate and the circular frame plate.

[0012] The outer side of the blocking plate is sleeved with a gear ring, and a rotating shaft is rotated in the circular frame plate. The outer side of the rotating shaft is sleeved with a ratchet piece, and the outer side of the rotating shaft is also sleeved with a driving gear engaged with the gear ring.

[0013] Preferably, the sealing assembly includes receiving grooves on both sides of the arc-shaped through groove, and a strip groove that is connected to several receiving grooves on one side is also provided in the material taking tube, and an arc-shaped plate located in the arc-shaped through groove slides in the corresponding receiving groove, and several rectangular grooves are provided on the arc-shaped through groove, and several rectangular plates corresponding to the rectangular grooves are provided on the arc-shaped through groove, and the inner bottom walls on both sides of the receiving groove rotate symmetrically with two vertical axes.

[0014] Preferably, a spring plate that contacts one side of the arc plate slides on the vertical shaft on one side, and the main body of the spring plate is slidably connected to the inner wall of the strip groove. A threaded groove that is threadedly connected to the spring plate is provided on the vertical shaft, and several contact plates that contact the other side of the arc plate are sleeved on the outer side of the vertical shaft on the other side.

[0015] Preferably, the detection assembly includes a plurality of sampling tubes which are arranged through the detection cylinder and correspond one-to-one to the detection cavities.

[0016] Preferably, one side of the sampling tube extends into the corresponding detection cavity.

[0017] Preferably, a sliding plate with a semicircular cross-section slides between adjacent partition plates, and a sliding groove is also provided between the partition plates. A connecting plate located in the sliding groove is provided between adjacent sliding plates, and an electric push rod is provided between the connecting plate and the sliding groove. A pushing rack with an L-shaped cross-section and located in the corresponding sliding groove is provided at one end of one side of the sliding plate, and the pushing rack corresponds to the ratchet member.

[0018] Preferably, a driving unit for driving the circular frame plate to move is arranged outside the detection cylinder, the driving unit comprises a driving groove arranged outside the detection cylinder, a driving motor is arranged in the driving groove through a motor base, a reciprocating screw rod is installed on the main shaft of the driving motor, and a driving magnetic plate is threadedly sleeved outside the reciprocating screw rod and slidably matched with the driving groove.

[0019] Preferably, the circular frame plate is made of a magnetic material.

[0020] In addition, the application also provides a crude oil quality detection and rapid automatic sampling method, comprising the following steps:

[0021] S1, crude oil extraction: the blocking assembly in the corresponding depth arc-shaped through groove is driven to stop blocking the arc-shaped through groove, so that the crude oil flows into the sampling pipe through the arc-shaped through groove.

[0022] S2, crude oil heating: the crude oil in the sampling pipe flows into the detection cylinder, the heating plate heats the crude oil, and the circular frame plate moves synchronously to stir the crude oil to heat it sufficiently.

[0023] S3, crude oil detection: the gas generated by heating the crude oil enters the detection cavity, and the detection assembly in the detection cavity detects the gas composition.

[0024] S4, crude oil discharge: after detection, the pushing unit drives the crude oil to discharge from one side of the detection cylinder.

[0025] As described above, the present application has at least one of the following beneficial technical effects:

[0026] Firstly, the present application can flexibly control the crude oil to enter the sampling pipe through the blocking assembly, and the adjustable structure can accurately correspond to different depths of the oil storage barrel; this makes the device can automatically and accurately sample the crude oil at different depths in the oil storage barrel; compared with the traditional manual sampling, the sampling efficiency is greatly improved, the errors caused by fatigue, judgment error and other factors in manual operation are avoided, the time cost is greatly saved, and the representativeness and accuracy of the crude oil sample are ensured.

[0027] Secondly, the detection cylinder of the present application is equipped with a heating plate and a pushing unit, and the partition plate and the detection assembly work cooperatively; the heating plate can stably heat the crude oil, and the pushing unit promotes the crude oil to fully roll during the heating process, so that the heating is more uniform, the generated gas enters each detection cavity respectively, and the detection assembly accurately detects the gas composition, so as to quickly and accurately obtain various parameters of the crude oil; the accuracy of the crude oil quality detection is significantly improved, and reliable basis is provided for subsequent processing, transportation and other links of the crude oil.

[0028] 3. The present invention can precisely control the movement of internal components through the drive unit, facilitating the rapid installation and removal of the device between different oil storage facilities. At the same time, special designs that accelerate the flow of crude oil, such as the auger rod in the feed pipe, ensure the efficient transmission and processing of crude oil within the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings and examples.

[0030] Figure 1 It is a schematic diagram of the body of the present invention.

[0031] Figure 2 It is a structural schematic diagram of the material taking pipe of the present invention.

[0032] Figure 3 It is a cross-sectional view of the detection tube of the present invention.

[0033] Figure 4 It is a schematic cross-sectional structural diagram of the pushing unit of the present invention.

[0034] Figure 5 It is a structural schematic diagram of the blocking component of the present invention.

[0035] Figure 6 It is a planar cross-sectional view of the plugging assembly of the present invention.

[0036] Figure 7 This is a disassembled diagram of the parts of the plugging assembly of the present invention.

[0037] Figure 8 It is a structural schematic diagram of the detection component of the present invention.

[0038] Figure 9 This invention Figure 8 A magnified view of part of the structure at point A.

[0039] Figure 10 It is a structural schematic diagram of the drive unit of the present invention.

[0040] Figure 11 It is a structural schematic diagram of the drive assembly of the present invention.

[0041] Figure 12 It is a structural schematic diagram of the drive assembly of the present invention from another perspective.

[0042] Figure 13 It is a structural schematic diagram of the toothed disc and the transmission gear of the present invention.

[0043] In the figure, 1. oil storage barrel; 10. feeding pipe; 11. arc-shaped through groove; 12. connecting pipe; 13. detection cylinder; 14. partition plate; 15. detection chamber; 2. pushing unit; 20. circular frame plate; 21. blocking plate; 22. through groove; 23. gear ring; 24. rotating shaft; 25. ratchet; 26. driving gear; 27. cover plate; 3. blocking assembly; 30. receiving groove; 31. strip groove; 32. arc plate; 33. rectangular groove; 34. rectangular plate; 35. vertical shaft; 36. spring plate; 37. thread Groove; 38. Contact plate; 4. Detection assembly; 40. Sampling tube; 41. Sliding plate; 42. Sliding groove; 43. Connecting plate; 44. Electric push rod; 45. Push rack; 5. Drive unit; 50. Drive groove; 51. Drive motor; 52. Reciprocating screw; 53. Drive magnetic plate; 6. Drive assembly; 60. Rectangular frame; 61. Transmission shaft; 62. Support plate; 63. Drive shaft; 64. Mounting plate; 65. Mounting bolt; 7. Circular cavity; 70. Auger rod; 71. Toothed disc; 72. Transmission gear. DETAILED DESCRIPTION

[0044] The following combination Figures 1 to 13 The embodiments of the present invention are described in detail.

[0045] The embodiments of the present application disclose a rapid automatic sampling device and method for crude oil quality inspection. The device is mainly used in the crude oil quality inspection process and can automatically and quickly collect crude oil samples from different depths. After sampling, the crude oil can be heated to cause it to produce gas. Subsequently, the gas composition is analyzed using a detection component to accurately determine various parameters of the crude oil, greatly improving the efficiency and accuracy of crude oil quality inspection.

[0046] Example 1: Reference Figure 1 、 Figure 2 and Figure 3 As shown, it includes an oil storage barrel 1, a feeding pipe 10, an arc-shaped through groove 11, a sealing component 3, a connecting pipe 12, a detection cylinder 13, a pushing unit 2, a partition plate 14, a detection cavity 15 and a detection component 4. The feeding pipe 10 runs through the lower end of the oil storage barrel 1, and several vertically arranged arc-shaped through grooves 11 are opened on the outside of the feeding pipe 10. The oil storage barrel 1 is used to store crude oil, and the crude oil in the oil storage barrel 1 can enter the feeding pipe 10 through the arc-shaped through grooves 11.

[0047] A blocking assembly 3 for blocking the arcuate through groove 11 is provided in the feed pipe 10 . The blocking assembly 3 may not block the arcuate through groove 11 , so that crude oil can enter the feed pipe 10 .

[0048] A connecting tube 12 is provided through the bottom of the feed pipe 10, and a detection cylinder 13 is inserted into one side of the connecting tube 12. Crude oil entering the feed pipe 10 can enter the detection cylinder 13 through the connecting tube 12. A heating plate (not shown) is provided on the bottom wall of the detection cylinder 13. A pushing unit 2 for heating the crude oil slides inside the detection cylinder 13. The heating plate is used to heat the crude oil in the detection cylinder 13. The crude oil can generate gas during the heating process, and the pushing unit 2 can push the crude oil to move in the detection cylinder 13 to ensure that the crude oil is fully heated.

[0049] Several partition plates 14 are also provided on the inner wall of the detection cylinder 13. Adjacent partition plates 14 divide the area above the detection chamber 15 into several detection chambers 15. Detection assemblies 4 are provided in each detection chamber 15. That is, the gas generated by heating the crude oil can enter each detection chamber 15 respectively. The detection assembly 4 then detects the gas composition in the corresponding detection chamber 15 to obtain various parameters of the crude oil.

[0050] Continue to refer to Figure 3 and Figure 4 As shown, a pushing unit 2 for heating the crude oil and pushing it to move slides inside the detection cylinder 13; specifically, the pushing unit 2 includes a circular frame plate 20, a sealing plate 21, a through groove 22, a gear ring 23, a rotating shaft 24, a ratchet member 25, a driving gear 26 and a cover plate 27. The circular frame plate 20 is slidably arranged inside the detection cylinder 13, and a sealing plate 21 rotates inside the circular frame plate 20. Both the sealing plate 21 and the circular frame plate 20 are provided with a through groove 22. When driven by an external force, the circular frame plate 20 can slide back and forth under the limit guide of the detection cylinder 13, and the sealing plate 21 can not only move synchronously with the circular frame plate 20, but also rotate inside the circular frame plate 20.

[0051] The gear ring 23 is sleeved on the outside of the blocking plate 21, and a rotating shaft 24 is also rotated in the circular frame plate 20. A ratchet member 25 is sleeved on the outside of the rotating shaft 24. The ratchet member 25 includes a circular plate sleeved on the outside of the rotating shaft. A plurality of ratchet grooves are opened on the ratchet. A ratchet toothed disk is also rotated on the outside of the ratchet. A pawl is rotated on the inner diameter of the ratchet toothed disk, and the pawl is inserted into the ratchet groove on one side. A driving gear 26 meshing with the gear ring 23 is also sleeved on the outside of the rotating shaft 24. That is, the ratchet member 25 can drive the rotating shaft 24 to rotate when driven by an external force, and the rotating shaft 2 4 can drive the outer driving gear 26 to rotate synchronously. At this time, the driving gear 26 can drive the blocking plate 21 to rotate in the circular frame plate 20 through the gear ring 23. That is, when the crude oil just enters the detection cylinder 13, the blocking plate 21 and the through groove 22 on the circular frame plate 20 correspond to each other. Even if the circular frame plate 20 moves in the detection cylinder 13, the crude oil will only pass through the through groove 22 and will not be pushed to move in the detection cylinder 13. Therefore, the crude oil can fully contact with the heating plate and be fully heated.

[0052] When the crude oil needs to be discharged from the detection cylinder 13, the sealing plate 21 is driven to rotate in the circular frame plate 20 so that the through groove 22 on the sealing plate 21 does not correspond to the through groove 22 on the circular frame plate 20. At this time, the circular frame plate 20 moves again, and the crude oil can be pushed out of the detection cylinder 13 from one side of the detection cylinder 13.

[0053] A cover plate 27 is hingedly connected to the bottom of the partition plate 14 on one side near the end of the detection cylinder 13 through a torsion spring. The cover plate 27 is used to seal the end of the detection cylinder 13 to prevent crude oil or gas from moving out of one side of the detection cylinder 13 during the crude oil heating process. When the circular frame plate 20 pushes the crude oil out of the detection cylinder 13, the circular frame plate 20 comes into contact with the cover plate 27 and drives it to swing, and no longer blocks the end of the circular frame plate 20, allowing the crude oil to be discharged. In addition, the circular frame plate 20 can also scrape the inner wall of the detection cavity 15 when pushing the crude oil to be discharged, preventing the crude oil from adhering to the inner wall of the detection cylinder 13 after heating.

[0054] Reference Figure 5 、 Figure 6 and Figure 7 As shown, the blocking component 3 is used to block the arcuate through groove 11; specifically, the blocking component 3 includes a receiving groove 30, a strip groove 31, a curved plate 32, a rectangular groove 33, a rectangular plate 34, a vertical shaft 35, a spring plate 36, a threaded groove 37 and a contact plate 38. The receiving groove 30 is provided on both sides of the arcuate through groove 11, and the material taking tube 10 is also provided with a strip groove 31 that is connected to several receiving grooves 30 on one side. The corresponding receiving groove 30 slides with a curved plate 32 located in the arcuate through groove 11, and the curved plate 32 is provided with several rectangular grooves 33 distributed at equal intervals, and the arcuate plate 32 is provided with a plurality of rectangular grooves 33 distributed at equal intervals. The through groove 11 is provided with several rectangular plates 34 corresponding to the rectangular grooves 33. The arc-shaped plates 32 can slide back and forth in the accommodating groove 30 and the arc-shaped through groove 11, and can drive the rectangular grooves 33 on the outside thereof to be in contact with or not in contact with the rectangular plates 34 when sliding. When the rectangular plates 34 correspond to the rectangular grooves 33, that is, at this time, the rectangular plates 34 can block the rectangular grooves 33 to prevent crude oil from entering the material taking pipe 10 through the rectangular grooves 33. When the rectangular plates 34 do not correspond to the rectangular grooves 33, that is, at this time, crude oil can enter the material taking pipe 10 through the rectangular grooves 33.

[0055] The inner bottom walls at both ends of the accommodating groove 30 have two vertical shafts 35 that rotate symmetrically. A spring plate 36 slides on one of the vertical shafts 35 and contacts one side of the arc plate 32 . The spring plate 36 also contacts the inner wall of the strip groove 31 .

[0056] A thread groove 37 is formed on the vertical shaft 35 and is threadably connected to the spring plate 36 . A plurality of contact plates 38 corresponding to the other side of the arc plate 32 are sleeved on the outer side of the vertical shaft 35 on the other side.

[0057] When driven by external force, the vertical shaft 35 on one side can drive the spring plate 36 to move up and down under the limit guide of the inner wall of the strip groove 31 through the threaded groove 37. No matter where the spring plate 36 is, its main body is always in contact with the inner wall of the strip groove 31, so that it can pass through the strip groove 31 and enter the next accommodating groove 30. When driven by external force, the vertical shaft 35 on the other side can drive the outer contact plate 38 to rotate along its axis.

[0058] In the initial state, the contact plate 38 contacts one side of the corresponding curved plate 32, so that the telescopic end of the spring plate 36 will not drive the curved plate 32 to move when it contacts the other side of the curved plate 32. The telescopic end of the spring plate 36 will only telescope. That is, only when the contact plate 38 is driven by the corresponding vertical shaft 35 and no longer contacts the curved plate 32, the telescopic end of the spring plate 36 will drive the corresponding curved plate 32 to move, so that the rectangular groove 33 outside the rectangular groove 33 is no longer blocked by the corresponding rectangular plate 34, and the crude oil can enter the material extraction pipe 10 through the rectangular groove 33.

[0059] When the cam 35 is in the closed position, the spring 36 is in the closed position, and the spring 36 is in the closed position, so that the spring 36 is in the closed position.

[0060] Reference Figure 8 and Figure 9 As shown, the detection component 4 is used to detect petroleum gas; specifically, the detection component 4 includes a sampling tube 40, a sliding plate 41, a sliding groove 42, a connecting plate 43, an electric push rod 44 and a pushing rack 45. Several sampling tubes 40 are arranged on the detection cylinder 13 and correspond one to one with the detection cavity 15. One side of the sampling tube 40 extends into the corresponding detection cavity 15, that is, the gas entering the detection cavity 15 can enter the sampling tube 40. The end of the sampling tube 40 located outside the detection cavity 15 is used to connect to the detection port of the external detection equipment, so that the external detection equipment can detect the gas in the detection cavity 15 through the sampling tube 40.

[0061] Sliding plates 41 with a semicircular cross section slide between adjacent partition plates 14, and sliding grooves 42 are formed between the partition plates 14. Adjacent sliding plates 41 are provided with connecting plates 43 located in the sliding grooves 42, and an electric push rod 44 is arranged between the connecting plate 43 and the sliding groove 42. The electric push rod 44 is used to drive the connecting plate 43 to move up and down in the corresponding sliding groove 42. The corresponding sliding plate 41 can be driven to move synchronously through the connecting plate 43. When the sliding plate 41 moves downward, it will not correspond to the two side partition plates 14. At this time, the port of the detection cavity 15 is no longer blocked, so that the gas generated by heating the crude oil can enter the detection cavity 15. When the gas in the detection cavity 15 is sufficient, the sliding plate 41 is driven upward to the initial position by the electric push rod 44 again. At this time, the corresponding external detection equipment can detect the gas in the corresponding detection cavity 15.

[0062] The reason why the sliding plate 41 blocks the detection cavity 15 is multifaceted. First, when the external detection equipment detects the gas, it may need to drop detection liquid into the detection cavity 15. These detection liquids are often designed for specific gas components and show corresponding detection results by chemical reaction with the gas. If the detection cavity 15 is not blocked, the detection liquid may not accurately contact the target gas during the dripping process due to the flow of the gas, resulting in inaccurate detection results. For example, when detecting sulfur-containing gas, the commonly used detection liquid reacts with sulfur to produce a significant color change. However, if the detection cavity 15 is open, the gas flow will prevent the detection liquid from forming an effective reaction environment locally, making it difficult to accurately determine the sulfur content.

[0063] Secondly, some external detection equipment needs to inject specific detection gas into the detection cavity 15. These detection gases react with the original oil gas, and the composition of the oil gas is analyzed by monitoring the physical or chemical changes during the reaction. If the detection cavity 15 is not blocked, the injected detection gas may quickly escape and cannot fully mix with the oil gas and react. For example, when detecting whether unsaturated hydrocarbons are present in the crude oil gas, bromine gas needs to be injected. The addition reaction between bromine gas and unsaturated hydrocarbons causes the color of bromine gas to fade. If the detection cavity 15 is open, the bromine gas cannot be effectively retained, and the presence of unsaturated hydrocarbons cannot be accurately detected.

[0064] Furthermore, it is crucial to prevent the mixing of gases in each chamber. Each detection cavity 15 corresponds to the detection of different aspects of oil gas. If the gases mix, the detection results will be severely disturbed. For example, one detection cavity 15 is used to detect the methane content, and another is used to detect the ethane content. If the gases in the two chambers mix, the detection equipment cannot accurately distinguish between the signals of methane and ethane, resulting in chaotic detection results and providing no reliable basis for parameter analysis of crude oil.

[0065] In addition, blocking the detection chamber 15 can also ensure the stability of the detection environment. During the detection process, factors such as temperature and pressure have a certain impact on the detection results. If the detection chamber 15 is open, the temperature and pressure changes of the external environment are likely to interfere with the gas state in the detection chamber 15, thereby affecting the accuracy of the detection results. By blocking the detection chamber 15 with the sliding plate 41, the stable state of the gas in the detection chamber 15 can be maintained to a certain extent, providing a more reliable detection environment for the detection equipment, ensuring the accuracy of the detection results, and thus laying a solid foundation for the accurate determination of various parameters of crude oil.

[0066] A pushing rack 45 with an L-shaped cross section is provided at one end of the sliding plate 41 and is located in the corresponding sliding groove 42 , and the pushing rack 45 corresponds to the ratchet member 25 .

[0067] That is, when the sliding plate 41 needs to move downward, the circular frame plate 20 is driven to move to correspond to the partition plate 14 on the side close to the connecting pipe 12. At this time, the sliding plate 41 will not be blocked by the circular frame plate 20 and can be lowered. After the oil gas detection is completed, the crude oil in the detection cylinder 13 needs to be discharged. At this time, the sliding plate 41 descends, so that the gas detected in the detection chamber 15 and the dripped test liquid are discharged from the detection chamber 15 into the detection cylinder 13, and in this process, the pushing rack 45 will engage with the ratchet tooth plate on the outside of the ratchet member 25. The ratchet tooth plate drives the ratchet to rotate through the cooperation of the pawl and the ratchet groove, and the ratchet drives the rotating shaft 24 to rotate. The rotating shaft 24 indirectly drives the blocking plate 21 to rotate, so that the through groove 22 on the blocking plate 21 no longer corresponds to the through groove 22 on the circular frame plate 20. At this time, the crude oil can be discharged through the circular frame plate 20 When the push rack 45 moves upward with the sliding plate 41, the push rack 45 drives the ratchet gear plate to rotate in the opposite direction, and the ratchet gear plate drives the pawl to rotate in the opposite direction of the ratchet groove, that is, the ratchet does not drive the rotating shaft to rotate at this time. When the next wave of crude oil needs to enter the detection cylinder 13, the blocking plate 21 is driven to rotate by the pushing rack 45 again so that the circular frame plate 20 and the through groove 22 on the blocking plate 21 correspond to each other. Then the sliding plate 41 drives the pushing rack 45 to rise again. At this time, the through groove 22 on the blocking plate 21 will correspond to the through groove on the circular frame plate 20. At this time, the circular frame plate 20 can continue to move so that the crude oil can be fully heated. After the crude oil is refueled, the circular frame plate 20 moves to the initial position. Continuing to complete the above steps can achieve efficient detection of crude oil.

[0068] It should be noted that the “external detection equipment” mentioned in the above implementation process is existing technology, which mainly includes gas chromatography-mass spectrometry, Fourier transform infrared spectrometer and electrochemical gas analyzer.

[0069] The gas chromatography-mass spectrometry system combines the efficient separation capability of gas chromatography with the accurate identification capability of mass spectrometry. When detecting the gas produced by heating petroleum, the gas chromatography part first separates the complex gas mixture into individual components, and then the mass spectrometer performs precise mass analysis on each component. By comparing with the mass spectrum database of known compounds, it can accurately identify the various components in the gas, such as various hydrocarbons, sulfur-containing compounds, oxygen-containing compounds, etc., and can also accurately determine their content, providing detailed and accurate data for the composition analysis of crude oil.

[0070] The Fourier transform infrared spectrometer determines the composition of a gas by measuring the absorption of infrared light by gas molecules. Different gas molecules have unique infrared absorption spectral characteristics. When the gas generated by heating petroleum passes through the instrument, the instrument will record the gas's absorption of infrared light of different wavelengths, forming a spectrum. By analyzing the spectrum, the various chemical bonds contained in the gas can be quickly determined, and then the gas composition can be inferred. This is of great significance for the detection of olefins, aromatics, and sulfur-, oxygen-, and nitrogen-containing compounds in petroleum gas.

[0071] Electrochemical gas analyzers are mainly used to detect specific harmful gases in petroleum gas, such as hydrogen sulfide and carbon monoxide. They use electrochemical sensors. When the target gas reacts chemically with the electrodes in the sensor, an electrical signal proportional to the gas concentration is generated. By measuring the intensity of this electrical signal, the gas concentration can be accurately determined. This equipment has the characteristics of high sensitivity and fast response speed. It can detect the content of harmful components in petroleum gas in a timely manner and ensure the safety of the detection environment.

[0072] These external detection devices cooperate with the detection component 4 in the present invention. The sampling tube 40 transmits the gas in the detection chamber 15 to the corresponding equipment, realizing efficient and accurate detection of the gas generated after the petroleum is heated, providing strong support for crude oil quality inspection and further improving the detection process.

[0073] Reference Figure 10 As shown, a driving unit 5 for driving the circular frame plate 20 to move is provided on the outside of the detection cylinder 13; specifically, the driving unit 5 includes a driving slot 50, a driving motor 51, a reciprocating screw 52 and a driving magnetic plate 53. The driving slot 50 is opened on the outside of the detection cylinder 13, and the driving motor 51 is provided in the driving slot 50 through the motor seat. The reciprocating screw 52 is installed on the main shaft of the driving motor 51, and the outer side of the reciprocating screw 52 is provided with a threaded sleeve with a driving magnetic plate 53 that slides with the driving slot 50.

[0074] That is, the reciprocating screw 52 can be driven to rotate by the driving motor 51, and the reciprocating screw 52 can drive the corresponding driving magnetic plate 53 to move back and forth under the limiting guide of the driving groove 50 when rotating. Since the circular frame plate 20 is made of magnetic material, the driving magnetic plate 53 can also be driven to move synchronously when moving.

[0075] Example 2: Reference Figure 11 and Figure 12 As shown, on the basis of Example 1, in order to be able to drive the two vertical shafts 35 to rotate, a rectangular frame 60 located outside the oil storage barrel 1 is provided on the outside of the material taking pipe 10, and one side of the two vertical shafts 35 passes through the outer wall of the corresponding material taking pipe 10 and is located in the rectangular frame 60, and a driving assembly 6 is provided in the rectangular frame 60; specifically, the driving assembly 6 includes a rectangular frame 60, a transmission shaft 61, a support plate 62, a driving shaft 63, a mounting plate 64 and a mounting bolt 65, two transmission shafts 61 corresponding to the vertical shafts 35 are rotatably passed through the outer wall of the rectangular frame 60, and the transmission shafts 61 and the corresponding vertical shafts 35 are connected together by a connecting shaft, that is, when the transmission shaft 61 is driven by external force to rotate on the rectangular frame 60, the corresponding vertical shaft 35 can be driven to rotate synchronously through the connecting shaft, and the connecting shaft is a plurality of shafts and gears provided between the vertical shaft 35 and the corresponding transmission shaft 61, so that the vertical shaft 35 and the transmission shaft 61 are connected to each other.

[0076] Furthermore, a support plate 62 is provided on the outside of the detection cylinder 13, and the support plate 62 corresponds to the vertical shaft 35 with a resistance plate 38 sleeved on the outside of one side. A driving shaft 63 is rotatably passed through the support plate 62, and one end of the driving shaft 63 is connected to the end of the adjacent transmission shaft 61 by a keyway, and the driving shaft 63 is connected to the reciprocating screw 52 on one side by a belt drive.

[0077] When the reciprocating screw 52 rotates, the drive shaft 63 can be driven to rotate synchronously by means of a belt drive, and the drive shaft 63 can drive the transmission shaft 61 on one side to rotate by means of a keyway, so that the transmission shaft 61 on one side can indirectly drive several contact plates 38 to rotate synchronously around the axis of the vertical shaft 35. During the rotation of the contact plate 38, it will reciprocate with the end of the corresponding arc plate 32. When one side of the arc plate 32 is contacted by the driving end of the spring plate 36, the corresponding The arc plate 32 will slide back and forth in the arc groove 11 under the reciprocating interference of the contact plate 38 and the push of the telescopic end of the spring plate 36, so that the rectangular groove 33 on the arc plate 32 corresponds or does not correspond to the corresponding rectangular plate 34. Crude oil can flow from the rectangular groove 33 into the material taking pipe 10 when the rectangular plate 34 does not correspond to the rectangular groove 33. The reciprocating corresponding action of the rectangular groove 33 and the rectangular plate 34 can allow crude oil to flow into the material taking pipe 10 intermittently, preventing excessive crude oil from entering and causing blockage.

[0078] When the crude oil is no longer required to enter the feeding pipe 10, the vertical shaft 35 on one side drives the curved plate 32 to move to the initial position through the resistance plate 38. At this time, the crude oil no longer enters the feeding pipe 10 through the rectangular groove 33. The spring plate 36 on the outer side of the vertical shaft 35 no longer corresponds to any curved plate 32. At this time, even if the resistance plate 38 reciprocates again, it will not drive the curved plate 32 to move.

[0079] That is, the transmission shaft 61 on the other side is directly connected to the main shaft of the external drive motor 51, and is directly driven to rotate by the main shaft of the external drive motor 51, so that it can directly drive the vertical shaft 35 on one side to rotate, so that the vertical shaft 35 can drive the vertical shaft 35 with a thread groove 37 on the outside to rotate, and the vertical shaft 35 can drive the spring plate 36 to move up and down through the thread groove 37.

[0080] One end of the detection cylinder 13 is movably connected to the connecting tube 12. A mounting plate 64 is also provided on one side of the support plate 62. A mounting groove is provided on the side of the rectangular frame 60 facing the mounting plate 64. A mounting bolt 65 is threaded through the connecting plate 43, and one side of the mounting bolt 65 extends into the mounting groove and is threadedly connected to it.

[0081] That is, the mounting plate 64 and the support plate 62 can be fixed to the rectangular frame 60 by means of the mounting bolts 65, so that the support plate 62 can support the detection cylinder 13. When it is necessary to detect the crude oil in other oil storage barrels 1, the mounting bolts 65 are removed, and then the detection cylinder 13 is removed, and then the detection cylinder 13 is moved to correspond to the port of the connecting pipe 12 corresponding to the lower end of the next oil storage barrel 1, and then the detection cylinder 13 is fixed to the corresponding rectangular frame 60 by means of the mounting bolts 65. Furthermore, the driving shaft 63 can also be connected to the corresponding transmission shaft 61 by means of a keyway.

[0082] Example 3: Reference Figure 7 As shown, based on the first and second embodiments, it includes a circular cavity 7, an auger rod 70, a gear plate 71 and a transmission gear 72. The circular cavity 7 is provided on the top of the feeding tube 10, and the auger rod 70 is rotatably installed inside the feeding tube 10.

[0083] One side of the auger rod 70 extends into the circular cavity 7, and a toothed disc 71 is sleeved on the outer side of the circular cavity 7; at the same time, the vertical shaft 35 with a resistance plate 38 sleeved on the outer side of one side also passes through and extends into the circular cavity 7, and the outer side of the vertical shaft 35 located in the circular cavity 7 is sleeved with a transmission gear 72, which is engaged with the outer side of the toothed disc 71.

[0084] Based on the above structural setting, when the vertical shaft 35 rotates, it can drive the transmission gear 72 connected to it to rotate synchronously; since the transmission gear 72 is engaged with the toothed disc 71, when the transmission gear 72 rotates, it will drive the toothed disc 71 to rotate, and then drive the auger rod 70 to rotate synchronously in the feeding pipe 10.

[0085] Considering the viscous nature of crude oil, the rotation of the auger rod 70 can accelerate the movement speed of the crude oil in the feed pipe 10 , ensuring that the crude oil in the feed pipe 10 can flow smoothly into the detection cylinder 13 .

[0086] In addition, the present invention also provides a crude oil quality inspection rapid automatic sampling method, comprising the following steps:

[0087] S1, crude oil extraction: driving the blocking assembly 3 in the arcuate through groove 11 of corresponding depth to stop blocking it, so that the crude oil flows into the material extraction pipe 10 through the arcuate through groove 11.

[0088] S2, crude oil heating: the crude oil in the material taking pipe 10 flows into the detection cylinder 13, the heating plate heats the crude oil, and the circular frame plate 20 moves synchronously to stir the crude oil so that it is fully heated.

[0089] S3, crude oil detection: The crude oil is heated to generate gas, which enters the detection chamber 15. The detection component 4 in the detection chamber 15 detects the gas composition.

[0090] S4, crude oil discharge: After the detection is completed, the circular frame plate 20 drives the crude oil to be discharged from one side of the detection cylinder 13.

[0091] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive.

[0092] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A crude oil quality inspection rapid automatic sampling device, comprising an oil storage barrel (1), characterized in that: A feeding pipe (10) is passed through the lower end of the oil storage barrel (1), a plurality of arc-shaped through grooves (11) are provided on the outer side of the feeding pipe (10), a blocking component (3) for blocking the arc-shaped through grooves (11) is provided in the feeding pipe (10), a connecting pipe (12) is provided through the bottom of the feeding pipe (10), a detection cylinder (13) is plugged into one side of the connecting pipe (12), a heating plate is provided on the inner bottom wall of the detection cylinder (13), and a pushing unit (2) for heating crude oil slides in the detection cylinder (13); A plurality of partition plates (14) are further provided on the inner wall of the detection cylinder (13), and the partition plates (14) divide the upper end area of ​​the detection cavity (15) into a plurality of detection cavities (15), and a detection component (4) is provided in the detection cavity (15); The pushing unit (2) includes a circular frame plate (20) that slides in the detection cylinder (13), a blocking plate (21) that rotates in the circular frame plate (20), and a through groove (22) is formed on both the blocking plate (21) and the circular frame plate (20); The outer side of the blocking plate (21) is sleeved with a gear ring (23), and a rotating shaft (24) is also rotated in the circular frame plate (20), the outer side of the rotating shaft (24) is sleeved with a ratchet (25), and the outer side of the rotating shaft (24) is also sleeved with a driving gear (26) meshing with the gear ring (23); A sliding plate (41) with a semicircular cross section slides between adjacent partition plates (14), and a sliding groove (42) is also provided between the partition plates (14). A connecting plate (43) located in the sliding groove (42) is provided between the adjacent sliding plates (41), and an electric push rod (44) is provided between the connecting plate (43) and the sliding groove (42). A pushing rack (45) with an L-shaped cross section is provided at one end of one side sliding plate (41) and is located in the corresponding sliding groove (42), and the pushing rack (45) corresponds to the ratchet member (25); A driving unit (5) for driving the circular frame plate (20) to move is provided on the outside of the detection cylinder (13), and the driving unit (5) includes a driving groove (50) provided on the outside of the detection cylinder (13), a driving motor (51) is provided in the driving groove (50) through a motor seat, a reciprocating screw (52) is installed on the main shaft of the driving motor (51), and a driving magnetic plate (53) is provided on the outer thread sleeve of the reciprocating screw (52) and is slidably matched with the driving groove (50).

2. The crude oil quality inspection rapid automatic sampling device according to claim 1, characterized in that: The blocking component (3) includes receiving grooves (30) provided on both sides of the arcuate groove (11), and a strip groove (31) intersecting with several receiving grooves (30) on one side is provided in the feeding tube (10), and an arcuate plate (32) located in the arcuate groove (11) slides in the corresponding receiving groove (30), and several rectangular grooves (33) are provided on the arcuate plate (32), and several rectangular plates (34) corresponding to the rectangular grooves (33) are provided on the arcuate groove (11), and the inner bottom walls on both sides of the receiving groove (30) rotate symmetrically with two vertical axes (35).

3. The crude oil quality inspection rapid automatic sampling device according to claim 2, characterized in that: A spring plate (36) that contacts one side of the arc plate (32) slides on the vertical shaft (35) on one side, and the main body of the spring plate (36) is slidably connected to the inner wall of the strip groove (31). A threaded groove (37) that is threadedly connected to the spring plate (36) is provided on the vertical shaft (35). A plurality of contact plates (38) that contact the other side of the arc plate (32) are sleeved on the outer side of the vertical shaft (35) on the other side.

4. The crude oil quality inspection rapid automatic sampling device according to claim 1, characterized in that: The detection assembly (4) includes a plurality of sampling tubes (40) that are arranged through the detection cylinder (13) and correspond one-to-one with the detection chamber (15).

5. The crude oil quality inspection rapid automatic sampling device according to claim 4, characterized in that: One side of the sampling tube (40) extends into the corresponding detection cavity (15).

6. The crude oil quality inspection rapid automatic sampling device according to claim 1, characterized in that: The circular frame plate (20) is made of magnetic material.

7. A method for rapid automatic sampling of crude oil quality inspection, using a rapid automatic sampling device for crude oil quality inspection according to any one of claims 1 to 6, characterized in that: The sampling method includes the following steps: S1, crude oil extraction: driving the blocking component (3) in the arc-shaped through groove (11) of corresponding depth to stop blocking it, so that the crude oil flows into the material extraction pipe (10) through the arc-shaped through groove (11); S2, crude oil heating: the crude oil in the material taking pipe (10) flows into the detection cylinder (13), the heating plate heats the crude oil, and the circular frame plate (20) moves synchronously to stir the crude oil so that it is fully heated; S3, crude oil detection: crude oil is heated to generate gas, which enters the detection chamber (15), and the detection component (4) in the detection chamber (15) detects the gas composition; S4, crude oil discharge: After the test is completed, the pushing unit (2) drives the crude oil to be discharged from one side of the test cylinder (13).

Images