Rapid automatic sampling device and method for crude oil quality inspection

Abstract

The invention relates to the field of petroleum detection, in particular to a crude oil quality inspection rapid automatic sampling device and method.The crude oil quality inspection rapid automatic sampling device comprises an oil storage barrel, a material taking pipe penetrates through the lower end of the oil storage barrel, a plurality of arc-shaped through grooves are formed in the outer side of the material taking pipe, and a plugging assembly for plugging the arc-shaped through grooves is arranged in the material taking pipe; a detection barrel is inserted into one side of the connecting pipe, a heating plate is arranged on the inner bottom wall of the detection barrel, a pushing unit for heating crude oil slides in the detection barrel, the crude oil can be flexibly controlled to enter the material taking pipe through a plugging assembly, and an adjustable structure accurately corresponds to different depths of the oil storage barrel; therefore, the device can automatically, accurately and quickly sample crude oil at different depths in the oil storage barrel; compared with traditional manual sampling, the sampling efficiency is greatly improved, errors caused by fatigue, misjudgment and the like of manual operation are avoided, the time cost is greatly saved, and the representativeness and accuracy of crude oil samples are ensured.

Description

Technical Field

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

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

[0003] However, the existing technologies have obvious deficiencies. When extracting crude oil at different depths, it is necessary to manually insert the equipment through the opening at the top of the tank, which is labor-intensive and has safety risks. The cleaning of the extraction equipment depends on manual operation, which is troublesome and prone to residual impurities, affecting the accuracy of the samples.

[0004] In addition, when detecting, the crude oil needs to be transferred to an independent device, and the device also needs to be cleaned after detection. The process is cumbersome and prone to sample contamination or loss. Moreover, when detecting petroleum, it often needs to be heated. After heating, in some existing devices, the petroleum will adhere to the surface of the test device and is difficult to remove subsequently, further increasing the difficulty of equipment cleaning and the detection cost.

[0005] In the prior art, a patent with the publication number CN113687051A discloses an automatic extraction detection analyzer for petroleum collection. The water mist on the side wall of the analyzer body is wiped off by a demisting plate and a demisting sponge to avoid the water mist affecting the sight of the detection personnel. At the same time, a stirring plate stirs the petroleum in the analyzer body to make the petroleum heat evenly, and the rotating scraper will scrape off the petroleum adhering to the inner wall of the analyzer body to prevent the petroleum from adhering to the inner wall of the analyzer body. However, although this technology has improved some of the original problems, there are still aspects that need further optimization to better meet the actual detection requirements.

[0006] 1. The above-mentioned prior art has significant defects in the flexibility of sampling and detection. It can only operate on the petroleum in a single analyzer body, cannot obtain crude oil samples at different depths in the crude oil storage tank, cannot meet the detection requirements for the component differences at different depths of the crude oil, and this device can only fixedly detect the petroleum related to one tank and is difficult to cooperate flexibly with multiple tanks to carry out detection work, with poor versatility in actual application scenarios and unable to adapt to diverse detection tasks.

[0007] 2. The above-mentioned prior art has great deficiencies in detection functions. Its functions are relatively single and can only achieve basic operations such as stirring and heating of petroleum and oil vapor recovery, and cannot simultaneously detect multiple indicators of the gas generated during the heating process of petroleum.

[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, comprising an oil storage barrel, a feeding pipe passing through the lower end of the oil storage barrel, a plurality of arc-shaped through grooves are opened on the outer side of the feeding pipe, a blocking component for blocking the arc-shaped through grooves is arranged in the feeding pipe, a connecting pipe is arranged through the bottom of the feeding pipe, a detection cylinder is inserted into one side of the connecting pipe, a heating plate is arranged on the bottom wall of the detection cylinder, and a pushing unit for heating the crude oil slides in the detection cylinder.

[0010] A plurality of partition plates are also arranged on the inner wall of the detection tube, and the partition plates divide the area at the upper end of the detection cavity into a plurality of detection cavities, and detection components are arranged in the detection cavities.

[0011] Preferably, the pushing unit comprises a circular frame plate which slides in the detection cylinder, a sealing plate is rotated 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 also rotated in the circular frame plate. A ratchet piece is sleeved on the outer side of the rotating shaft, and a driving gear meshing with the gear ring is also sleeved on the outer side of the rotating shaft.

[0013] Preferably, the sealing assembly includes receiving grooves opened on both sides of the arc-shaped through groove, and a strip groove which is connected with several receiving grooves on one side is also opened 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 opened on the arc-shaped plate, and several rectangular plates corresponding to the rectangular grooves are arranged 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 sliding grooves are 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, and 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 on the outer side of the detection cylinder. The driving unit includes a driving groove opened on the outer side of the detection cylinder. A driving motor is arranged in the driving groove through a motor base. A reciprocating lead screw is installed on the main shaft of the driving motor. A driving magnetic plate that is in sliding fit with the driving groove is sleeved on the outer side of the reciprocating lead screw in a threaded manner.

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

[0020] In addition, the present invention also provides a method for quickly and automatically sampling crude oil quality inspection, including the following steps: S1, crude oil extraction: Drive the plugging component in the corresponding depth arc-shaped through groove to no longer plug it, so that the crude oil flows into the material taking pipe through the arc-shaped through groove.

[0021] S2, crude oil heating: The crude oil in the material taking 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 make it fully heated.

[0022] S3, crude oil detection: The crude oil generates gas when heated. The gas enters the detection cavity, and the detection components in the detection cavity detect the gas components.

[0023] S4, crude oil discharge: After the detection is completed, the pushing unit drives the crude oil to be discharged from one side of the detection cylinder.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: First, the present invention can flexibly control the entry of crude oil into the material taking pipe through the plugging component, and the adjustable structure accurately corresponds to different depths of the oil storage tank; this enables the device to automatically and accurately quickly sample the crude oil at different depths in the oil storage tank; compared with traditional manual sampling, the sampling efficiency is greatly improved, avoiding errors caused by manual operations such as fatigue and judgment errors, greatly saving time costs, and ensuring the representativeness and accuracy of the crude oil sample.

[0025] Second, the detection cylinder of the present invention is equipped with a heating plate and a pushing unit inside, and the partition plate and the detection components cooperate. The heating plate can stably heat the crude oil, and the pushing unit makes the crude oil fully tumble during the heating process, making the heating more uniform. The generated gas enters each detection cavity respectively, and the detection components accurately detect the gas components, so as to quickly and accurately obtain various parameters of the crude oil; significantly improving the accuracy of crude oil quality inspection provides a reliable basis for subsequent links such as crude oil processing and transportation.

[0026] Third, the present invention can accurately control the movement of internal components through the driving unit, facilitating the quick installation and disassembly of the device between different oil storage equipment. At the same time, the special design for accelerating the flow of crude oil, such as the auger rod in the material taking pipe, ensures the efficient transmission and processing of crude oil in the device. Brief Description of the Drawings

[0027] The present invention will be further described below in conjunction with the drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the main body of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the material extraction pipe of the present invention.

[0030] Figure 3 It is a sectional view of the detection cylinder of the present invention.

[0031] Figure 4 It is a schematic sectional structural diagram of the pushing unit of the present invention.

[0032] Figure 5 It is a schematic structural diagram of the plugging component of the present invention.

[0033] Figure 6 It is a plan sectional view of the plugging component of the present invention.

[0034] Figure 7 It is an exploded view of the parts of the plugging component of the present invention.

[0035] Figure 8 It is a schematic structural diagram of the detection component of the present invention.

[0036] Figure 9 It is the present invention Figure 8 Partial enlarged view of part A in

[0037] Figure 10 It is a schematic structural diagram of the driving unit of the present invention.

[0038] Figure 11 It is a schematic structural diagram of the driving component of the present invention.

[0039] Figure 12 It is a schematic structural diagram of the driving component from another perspective of the present invention.

[0040] Figure 13 It is a schematic structural diagram of the gear disk and the transmission gear of the present invention.

[0041] In the figure, 1 is an oil storage barrel; 10 is a material taking pipe; 11 is an arc-shaped through groove; 12 is a connecting pipe; 13 is a detection cylinder; 14 is a partition plate; 15 is a detection cavity; 2 is a pushing unit; 20 is a circular frame plate; 21 is a sealing plate; 22 is a through groove; 23 is a gear ring; 24 is a rotating shaft; 25 is a ratchet member; 26 is a driving gear; 27 is a cover plate; 3 is a sealing component; 30 is a receiving groove; 31 is a strip-shaped groove; 32 is an arc-shaped plate; 33 is a rectangular groove; 34 is a rectangular plate; 35 is a vertical shaft; 36 is a spring plate; 37 is a threaded groove; 38 is a resisting plate; 4 is a detection component; 40 is a sampling pipe; 41 is a sliding plate; 42 is a sliding groove; 43 is a connecting plate; 44 is an electric push rod; 45 is a pushing rack; 5 is a driving unit; 50 is a driving groove; 51 is a driving motor; 52 is a reciprocating lead screw; 53 is a driving magnetic plate; 6 is a driving component; 60 is a rectangular frame; 61 is a transmission shaft; 62 is a support plate; 63 is a driving shaft; 64 is a mounting plate; 65 is a mounting bolt; 7 is a circular cavity; 70 is an auger rod; 71 is a toothed disc; 72 is a transmission gear. Specific embodiments

[0042] The following is combined with Figures 1 to 13 to describe the embodiments of the present invention in detail.

[0043] The embodiments of the present application disclose a rapid automatic sampling device and method for crude oil quality inspection. This device is mainly applied to the crude oil quality inspection process, can automatically and quickly collect crude oil samples from different depths. After sampling, the crude oil can be heated to generate gas. Subsequently, the detection component is used to analyze the components of these gases, and then the various parameters of the crude oil can be accurately obtained, greatly improving the efficiency and accuracy of crude oil quality inspection.

[0044] Embodiment 1: Referring to Figure 1 、 Figure 2 and Figure 3 as shown, it includes an oil storage barrel 1, a material taking 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 lower end of the oil storage barrel 1 penetrates through the material taking pipe 10. Several vertically arranged arc-shaped through grooves 11 are opened on the outer side of the material taking 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 material taking pipe 10 through the arc-shaped through groove 11.

[0045] A sealing component 3 for sealing the arc-shaped through groove 11 is arranged in the material taking pipe 10. The sealing component 3 can not seal the arc-shaped through groove 11, so that the crude oil can enter the material taking pipe 10.

[0046] A connecting pipe 12 is provided with a through bottom of the material taking pipe 10. A detection cylinder 13 is inserted on one side of the connecting pipe 12. The crude oil entering the material taking pipe 10 can enter the detection cylinder 13 through the connecting pipe 12. A heating plate (not shown) is provided on the inner bottom wall of the detection cylinder 13. A pushing unit 2 for heating the crude oil slides in the detection cylinder 13. The heating plate is used to heat the crude oil in the detection cylinder 13. Gas can be generated during the heating process of the crude oil, and the pushing unit 2 can push the crude oil to move in the detection cylinder 13, so that the crude oil is fully heated.

[0047] Several partition plates 14 are further provided on the inner wall of the detection cylinder 13. The adjacent partition plates 14 divide the upper region of the detection cavity 15 into several detection cavities 15. A detection component 4 is provided in the detection cavity 15. That is, the gas generated by heating the crude oil can enter each detection cavity 15 respectively, and then the detection component 4 detects the gas components in the corresponding detection cavity 15 to obtain various parameters of the crude oil.

[0048] 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 in the detection cylinder 13. Specifically, the pushing unit 2 includes a circular frame plate 20, a plugging 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. A plugging plate 21 rotates inside the circular frame plate 20. Through grooves 22 are provided on both the plugging plate 21 and the circular frame plate 20. When the circular frame plate 20 is driven by an external force, it can slide back and forth under the limit guidance of the detection cylinder 13. And the plugging plate 21 can not only move synchronously with the circular frame plate 20, but also rotate inside the circular frame plate 20.

[0049] The gear ring 23 is sleeved on the outside of the plugging plate 21. A rotating shaft 24 also rotates inside 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. Several ratchet grooves are provided on the ratchet. A ratchet tooth disc rotates on the outside of the ratchet. A ratchet pawl rotates inside the inner diameter of the ratchet tooth disc, and the ratchet pawl is inserted into one side of the ratchet groove. And a driving gear 26 meshing with the gear ring 23 is also sleeved on the outside of the rotating shaft 24. That is, when the ratchet member 25 is driven by an external force, it can drive the rotating shaft 24 to rotate, and the rotating shaft 24 can drive the driving gear 26 on the outside to rotate synchronously. At this time, the driving gear 26 can drive the plugging plate 21 to rotate inside the circular frame plate 20 through the gear ring 23. That is, when the crude oil just enters the detection cylinder 13, at this time, the through grooves 22 on the plugging plate 21 and 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, so that the crude oil can fully contact with the heating plate and be fully heated.

[0050] When the crude oil needs to be discharged outside the detection cylinder 13, the blocking plate 21 is driven to rotate within the circular frame plate 20 at this time, so that the through groove 22 on the blocking 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 then the crude oil can be pushed out of the detection cylinder 13 from one side of the detection cylinder 13.

[0051] At the bottom of the partition plate 14 near one end of the detection cylinder 13, a cover plate 27 is hinged through a torsion spring. The cover plate 27 is used to block the end of the detection cylinder 13 to prevent the crude oil or gas from moving out from one side of the detection cylinder 13 during the heating process of the crude oil. When the circular frame plate 20 pushes the crude oil out of the detection cylinder 13, the circular frame plate 20 contacts the cover plate 27 at this time and drives it to swing, no longer blocking the end of the circular frame plate 20, so that the crude oil can be discharged. Moreover, when the circular frame plate 20 pushes the crude oil to be discharged, it can also scrape the inner wall of the detection cavity 15 to prevent the crude oil from adhering to the inner wall of the detection cylinder 13 after heating.

[0052] Refer to Figure 5 、 Figure 6 and Figure 7 As shown in

[0053] the plugging assembly 3 for plugging the arc-shaped through groove 11; specifically, the plugging assembly 3 includes a receiving groove 30, a strip-shaped groove 31, an arc-shaped 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 grooves 30 are opened on both sides of the arc-shaped through groove 11, and a strip-shaped groove 31 communicating with several receiving grooves 30 on one side is also opened in the material taking pipe 10. An arc-shaped plate 32 located in the arc-shaped through groove 11 slides in the corresponding receiving groove 30. Several rectangular grooves 33 are arranged at equal intervals on the arc-shaped plate 32, and several rectangular plates 34 corresponding to the rectangular grooves 33 are arranged on the arc-shaped through groove 11. The arc-shaped plate 32 can slide back and forth in the receiving groove 30 and the arc-shaped through groove 11, and when sliding, it can drive the rectangular grooves 33 on its outer side to be in contact or not in contact with the rectangular plates 34. When the rectangular plate 34 corresponds to the rectangular groove 33, that is, at this time, the rectangular plate 34 can plug the rectangular groove 33 to prevent the crude oil from entering the material taking pipe 10 through the rectangular groove 33. When the rectangular plate 34 does not correspond to the rectangular groove 33, that is, at this time, the crude oil can enter the material taking pipe 10 through the rectangular groove 33.

[0053] At the inner bottom walls at both ends of the receiving groove 30, two vertical shafts 35 are symmetrically rotated. A spring plate 36 that abuts against one side of the arc-shaped plate 32 slides on one of the vertical shafts 35, and the spring plate 36 also contacts the inner wall of the strip-shaped groove 31.

[0054] A threaded groove 37 for threadedly connecting with the spring plate 36 is opened on the vertical shaft 35, and several contact plates 38 corresponding to the other side of the arc-shaped plate 32 are sleeved outside the vertical shaft 35 on the other side.

[0055] When the vertical shaft 35 on one side is driven by an external force, it can drive the spring plate 36 through the threaded groove 37 to move in the up and down direction under the limit and guidance of the inner wall of the strip-shaped groove 31. No matter where the spring plate 36 is located, its main body always contacts the inner wall of the strip-shaped groove 31, enabling it to pass through the strip-shaped groove 31 and enter the next receiving groove 30. When the vertical shaft 35 on the other side is driven by an external force, it can drive the contact plate 38 on its outer side to rotate along its axis.

[0056] In the initial situation, the contact plate 38 abuts against one side of the corresponding arc-shaped plate 32, so that when the telescopic end of the spring plate 36 contacts the other side of the arc-shaped plate 32, it will not drive the arc-shaped plate 32 to move. The telescopic end of the spring plate 36 will only expand and contract. That is, only when the contact plate 38 is driven by the corresponding vertical shaft 35 and no longer abuts against the arc-shaped plate 32, at this time, the telescopic end of the spring plate 36 will drive the corresponding arc-shaped plate 32 to move, so that the rectangular groove 33 on its outer side is no longer blocked by the corresponding rectangular plate 34, and the crude oil can enter the sampling pipe 10 through the rectangular groove 33.

[0057] Furthermore, when sampling the crude oil at different depths in the oil storage barrel 1, first drive the vertical shaft 35 on one side to rotate, so that it drives the spring plate 36 to move to correspond to the arc-shaped plate 32 at the corresponding depth. A chamfer is provided on the telescopic end of the spring plate 36. After the spring plate 36 moves to the upper end of the next arc-shaped plate 32, its chamfer can contact the upper end of the arc-shaped plate 32, so that the telescopic end retracts into the main body of the spring plate 36. Then, the telescopic end of the spring plate 36 will continue to correspond to one end of the side of the arc-shaped plate 32. After the spring plate 36 has moved, drive the vertical shaft 35 on the other side to rotate again, so that the contact plate 38 no longer abuts against and limits the arc-shaped plate 32. At this time, the arc-shaped plate 32 abutted by the spring plate 36 on one side will move, so that the rectangular groove 33 no longer corresponds to the rectangular plate 34, and the crude oil at the corresponding depth will enter the oil storage barrel 1.

[0058] Refer to Figure 8 and Figure 9 As shown, that is, the detection component 4 for detecting petroleum gas; specifically, the detection component 4 includes a sampling pipe 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 pipes 40 are arranged through the detection cylinder 13 and correspond to the detection cavities 15 one by one. One side of the sampling pipe 40 extends into the corresponding detection cavity 15. That is, the gas entering the detection cavity 15 can enter the sampling pipe 40. One end of the sampling pipe 40 outside the detection cavity 15 is used to connect the detection port of the external detection device, so that the external detection device can detect the gas in the detection cavity 15 through the sampling pipe 40.

[0059] A sliding plate 41 with a semi-circular cross-section slides between adjacent partition plates 14. 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 adjacent sliding plates 41. An electric push rod 44 is jointly provided 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, that is, it no longer corresponds to the corresponding partition plates 14 on both sides. At this time, the port of the detection chamber 15 is no longer blocked, so that the gas generated by crude oil heating can enter the detection chamber 15. When the gas in the detection chamber 15 is sufficient, the sliding plate 41 can be driven to move upward to the initial position again through the electric push rod 44. At this time, the corresponding external detection device can perform a one-way detection on the gas in the corresponding detection chamber 15.

[0060] There are many reasons for the sliding plate 41 to block the detection chamber 15: First of all, when the external detection device detects the gas, it may need to drop the detection liquid into the detection chamber 15. These detection liquids are often designed for specific gas components and show corresponding detection results by reacting with the gas chemically. If the detection chamber 15 is not blocked, the detection liquid may not be able to come into precise contact with the target gas due to the gas flow during the dropping process, resulting in inaccurate detection results. For example, when detecting sulfur-containing gas, the common detection liquid reacts with sulfur to produce an obvious color change. However, if the detection chamber 15 is open, the gas flow will prevent the detection liquid from forming an effective reaction environment locally, making it difficult to accurately judge the sulfur content.

[0061] Secondly, some external detection devices need to inject specific detection gases into the detection chamber 15. These detection gases react with the original petroleum gas, and the physical or chemical changes during the reaction process are monitored to analyze the components of the petroleum gas. If the detection chamber 15 is not blocked, the injected detection gas may escape quickly and cannot be fully mixed with the petroleum gas to react. For example, when detecting whether there is unsaturated hydrocarbon in crude oil gas, bromine gas needs to be injected. Bromine gas reacts with unsaturated hydrocarbon to fade the color of bromine gas. If the detection chamber 15 is open, bromine gas cannot be effectively retained, and it is impossible to accurately detect the presence of unsaturated hydrocarbon.

[0062] Furthermore, it is crucial to prevent the gases in each chamber from mixing. Each detection chamber 15 corresponds to the detection of different aspects of petroleum gas. If the gases mix, the detection results will be seriously interfered. For example, one detection chamber 15 is used to detect the methane content, and the other is used to detect the ethane content. If the gases in the two chambers mix, the detection device cannot accurately distinguish the signals of methane and ethane, resulting in chaotic detection results and unable to provide a reliable basis for the parameter analysis of crude oil.

[0063] In addition, the plugging 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 changes in temperature and pressure in 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 plugging 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.

[0064] One end of one side of the sliding plate 41 is provided with a pushing rack 45 located in the corresponding sliding groove 42 and having an L-shaped cross section, and the pushing rack 45 corresponds to the ratchet member 25.

[0065] That is, when the sliding plate 41 needs to move downward, at this time, 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 descend. After the petroleum gas detection is completed, at this time, the crude oil in the detection cylinder 13 needs to be discharged. At this time, the sliding plate 41 descends, so that the detected gas in the detection chamber 15 and the added test liquid are discharged from the detection chamber 15 into the detection cylinder 13. And during this process, the pushing rack 45 will engage with the ratchet tooth disc on the outer side of the ratchet member 25. The ratchet tooth disc drives the ratchet to rotate through the cooperation of the ratchet pawl and the ratchet groove. The ratchet drives the rotating shaft 24 to rotate, and the rotating shaft 24 indirectly drives the plugging plate 21 to rotate, so that the through groove 22 on the plugging plate 21 no longer corresponds to the through groove 22 on the circular frame plate 20. At this time, the crude oil can be pushed out of the detection cylinder 13 through the circular frame plate 20. When the pushing rack 45 moves upward following the sliding plate 41, at this time, the pushing rack 45 drives the ratchet tooth disc to rotate in the reverse direction, and the ratchet tooth disc drives the ratchet pawl to rotate in the opposite direction to the extension direction of the ratchet groove, that is, at this time, the ratchet will not drive the rotating shaft to rotate. When the next wave of crude oil needs to enter the detection cylinder 13, at this time, the pushing rack 45 is again used to drive the plugging plate 21 to rotate so that the through grooves 22 on the circular frame plate 20 and the plugging 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 plugging 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 filled, the circular frame plate 20 moves to the initial position, and by continuing to complete the above steps, the efficient detection of crude oil can be realized.

[0066] It should be noted that the "external detection equipment" mentioned in the above implementation process is a prior art, which mainly includes a gas chromatography-mass spectrometry instrument, a Fourier transform infrared spectrometer, an electrochemical gas analyzer, etc. The gas chromatography - mass spectrometry (GC - MS) combines the high - efficiency separation ability of gas chromatography and the accurate identification ability of mass spectrometry. When detecting the gases generated after heating petroleum, the gas chromatography part first separates the complex gas mixture into individual components, and then the mass spectrometer conducts precise mass analysis on each component. By comparing with the mass spectrometry database of known compounds, various components in the gas, such as various hydrocarbons, sulfur - containing compounds, oxygen - containing compounds, etc., can be accurately identified, and their contents can also be precisely determined, providing detailed and accurate data for the component analysis of crude oil.

[0067] The Fourier transform infrared spectrometer determines the composition of gases by measuring the absorption of infrared light by gas molecules. Different gas molecules have unique infrared absorption spectral characteristics. When the gases generated after heating petroleum pass through this instrument, the instrument records the absorption of infrared light of different wavelengths by the gas to form a spectrogram. Through the analysis of the spectrogram, various chemical bonds contained in the gas can be quickly judged, and then the composition of the gas can be inferred, which is of great significance for detecting olefins, aromatics, and sulfur - containing, oxygen - containing, and nitrogen - containing compounds in petroleum gases.

[0068] The electrochemical gas analyzer is mainly used to detect specific harmful gases in petroleum gases, such as hydrogen sulfide, carbon monoxide, etc. It uses an electrochemical sensor. When the target gas undergoes a chemical reaction with the electrode 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 device has the characteristics of high sensitivity and fast response speed, and can timely detect the content of harmful components in petroleum gases to ensure the safety of the detection environment.

[0069] These external detection devices cooperate with the detection component 4 in the present invention. The sampling tube 40 transports the gas in the detection chamber 15 to the corresponding device, realizing the efficient and accurate detection of the gases generated after heating petroleum, providing strong support for the quality inspection of crude oil, and further improving the detection process.

[0070] Refer to Figure 10 As shown, a driving unit 5 for driving the circular frame plate 20 to move is provided outside the detection cylinder 13; specifically, the driving unit 5 includes a driving groove 50, a driving motor 51, a reciprocating lead screw 52, and a driving magnetic plate 53. The driving groove 50 is opened on the outside of the detection cylinder 13. A driving motor 51 is arranged in the driving groove 50 through a motor seat. A reciprocating lead screw 52 is installed on the main shaft of the driving motor 51. A driving magnetic plate 53 that is slidably matched with the driving groove 50 is sleeved on the outside of the reciprocating lead screw 52.

[0071] That is, by driving the drive motor 51, the reciprocating lead screw 52 can be driven to rotate. When the reciprocating lead screw 52 rotates, the corresponding drive magnetic plate 53 can be driven to move reciprocally under the limit and guidance of the drive groove 50. Since the circular frame plate 20 is made of magnetic material, the drive magnetic plate 53 can also drive the drive magnetic plate 53 to move synchronously when it moves.

[0072] Embodiment 2: Refer to Figure 11 and Figure 12 As shown in the figure, on the basis of Embodiment 1, in order to drive the two vertical shafts 35 to rotate, a rectangular frame 60 located outside the oil storage barrel 1 is arranged outside 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 inside the rectangular frame 60. A drive assembly 6 is arranged inside the rectangular frame 60; specifically, the drive assembly 6 includes a rectangular frame 60, a transmission shaft 61, a support plate 62, a driving shaft 63, a mounting plate 64 and mounting bolts 65. Two transmission shafts 61 corresponding to the vertical shafts 35 one by one are rotatably arranged on the outer wall of the rectangular frame 60, and the transmission shaft 61 and the corresponding vertical shaft 35 are connected together by a connecting shaft. That is, when the transmission shaft 61 is driven by an 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 provided with several shafts and gears between the vertical shaft 35 and the corresponding transmission shaft 61, so that the vertical shaft 35 and the transmission shaft 61 are connected together.

[0073] Furthermore, a support plate 62 is arranged outside the detection cylinder 13, and the support plate 62 corresponds to the vertical shaft 35 with a contact plate 38 sleeved on the outside of one side. A driving shaft 63 is rotatably arranged on the support plate 62. One end of the driving shaft 63 is connected to the end of the adjacent transmission shaft 61 by a keyway fit, and the driving shaft 63 is connected to the reciprocating lead screw 52 on one side by a belt drive.

[0074] When the reciprocating lead screw 52 rotates, it can drive the driving shaft 63 to rotate synchronously through the belt drive. The driving shaft 63 can drive the transmission shaft 61 on one side to rotate through the keyway fit, 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 make reciprocating contact 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 arc plate 32 will slide reciprocally in the arc-shaped through groove 11 under the reciprocating contact of the contact plate 38 and the pushing 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. The crude oil can flow into the material taking pipe 10 from the rectangular groove 33 when the rectangular plate 34 does not correspond to the rectangular groove 33. The reciprocating corresponding action between the rectangular groove 33 and the rectangular plate 34 can make the crude oil flow into the material taking pipe 10 intermittently, preventing too much crude oil from entering and causing blockage.

[0075] When the crude oil does not need to enter the material taking pipe 10, the vertical shaft 35 on one side drives the arc plate 32 to move to the initial position through the contact plate 38. At this time, the crude oil no longer enters the material taking pipe 10 through the rectangular groove 33. By driving the spring plate 36 outside it, the vertical shaft 35 on one side no longer corresponds to any arc plate 32. At this time, even if the contact plate 38 rotates reciprocally again, it will not drive the arc plate 32 to move.

[0076] That is to say, 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 threaded groove 37 on the outside to rotate, and the vertical shaft 35 can drive the spring plate 36 to move in the up and down direction through the threaded groove 37.

[0077] One end of the detection cylinder 13 is movably connected to the connecting pipe 12. An installation plate 64 is also provided on one side of the support plate 62. An installation groove is provided on the side of the rectangular frame 60 facing the installation plate 64. An installation bolt 65 is threaded through the connecting plate 43, and one side of the installation bolt 65 extends into the installation groove and is threadedly connected thereto.

[0078] That is, the mounting plate 64 and the support plate 62 can be fixed on the rectangular frame 60 through 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, then the detection cylinder 13 is removed, and then the detection cylinder 13 is moved to correspond to the connection pipe 12 port corresponding to the lower end of the next oil storage barrel 1. Then, the detection cylinder 13 is fixed on the corresponding rectangular frame 60 through the mounting bolts 65. Further, the driving shaft 63 can also be connected to the corresponding transmission shaft 61 in a keyway fit manner.

[0079] Embodiment 3: Refer to Figure 7 As shown, on the basis of Embodiment 1 and Embodiment 2, it includes a circular cavity 7, a screw auger rod 70, a toothed disc 71 and a transmission gear 72. A circular cavity 7 is provided at the top of the material taking pipe 10, and a screw auger rod 70 is rotatably installed inside the material taking pipe 10.

[0080] One side of the screw auger rod 70 extends into the circular cavity 7, and a toothed disc 71 is sleeved on the outside of the screw auger rod 70 located in the circular cavity 7; at the same time, the vertical shaft 35 with a contact plate 38 sleeved on the outside of one side also penetrates and extends into the circular cavity 7, and a transmission gear 72 is sleeved on the outside of the vertical shaft 35 located in the circular cavity 7. The transmission gear 72 meshes with the outside of the toothed disc 71.

[0081] Based on the above structural settings, when the vertical shaft 35 rotates, it can drive the transmission gear 72 connected thereto to rotate synchronously; since the transmission gear 72 meshes with the toothed disc 71, when the transmission gear 72 rotates, it will drive the toothed disc 71 to rotate, and then drive the screw auger rod 70 to rotate synchronously in the material taking pipe 10.

[0082] Considering the viscous characteristics of crude oil, the rotation of the screw auger rod 70 can accelerate the moving speed of the crude oil in the material taking pipe 10, ensuring that the crude oil in the material taking pipe 10 can smoothly flow into the detection cylinder 13.

[0083] In addition, the present invention also provides a rapid automatic sampling method for crude oil quality inspection, including the following steps: S1, Crude oil extraction: Drive the blocking component 3 in the corresponding depth arc-shaped through groove 11 to no longer block it, so that the crude oil flows into the material taking pipe 10 through the arc-shaped through groove 11.

[0084] 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 to make it fully heated.

[0085] S3, Crude oil detection: The crude oil generates gas when heated, and the gas enters the detection cavity 15, and the detection component 4 in the detection cavity 15 detects the gas components.

[0086] 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.

[0087] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0088] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid automatic sampling device for crude oil quality inspection, comprising an oil storage barrel (1), characterized in that: A feed 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 feed pipe (10), a plugging assembly (3) for plugging the arc-shaped through grooves (11) is provided inside the feed pipe (10), a connecting pipe (12) is provided through the bottom of the feed pipe (10), a detection tube (13) is plugged into one side of the connecting pipe (12), a heating plate is provided on the inner bottom wall of the detection tube (13), and a pushing unit (2) for heating crude oil slides inside the detection tube (13); A plurality of partition plates (14) are also provided on the inner wall of the detection tube (13), and the partition plates (14) divide the area at the upper end of the detection cavity (15) into a plurality of detection cavities (15), and a detection component (4) is provided in the detection cavity (15).

2. The rapid automatic sampling device for crude oil quality inspection according to claim 1, wherein: The pushing unit (2) comprises a circular frame plate (20) which slides in the detection cylinder (13), a sealing plate (21) which rotates in the circular frame plate (20), and a through groove (22) is formed on both the sealing plate (21) and the circular frame plate (20); A gear ring (23) is sleeved on the outer side of the blocking plate (21), and a rotating shaft (24) is also rotatable inside the circular frame plate (20). A ratchet wheel (25) is sleeved on the outer side of the rotating shaft (24), and a driving gear (26) meshing with the gear ring (23) is also sleeved on the outer side of the rotating shaft (24).

3. The rapid automatic sampling device for crude oil quality inspection according to claim 1, characterized in that: The blocking assembly (3) comprises receiving grooves (30) provided on both sides of the arc-shaped through groove (11), and a strip groove (31) intersecting with a plurality of receiving grooves (30) on one side is provided in the material taking tube (10), an arc-shaped plate (32) located in the arc-shaped through groove (11) slides in the corresponding receiving groove (30), a plurality of rectangular grooves (33) are provided on the arc-shaped plate (32), and a plurality of rectangular plates (34) corresponding to the rectangular grooves (33) are provided on the arc-shaped through groove (11), and the inner bottom walls on both sides of the receiving groove (30) are symmetrically rotated with two vertical axes (35).

4. The rapid automatic sampling device for crude oil quality inspection according to claim 3, wherein: A spring plate (36) that contacts one side of the arc plate (32) is slidably disposed on the vertical shaft (35) on one side, and a main body of the spring plate (36) is slidably connected to the inner wall of the strip groove (31). A thread groove (37) that is threadedly connected to the spring plate (36) is formed 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.

5. The rapid automatic sampling device for crude oil quality inspection according to claim 1, wherein: The detection assembly (4) comprises a plurality of sampling tubes (40) which are arranged through the detection cylinder (13) and correspond one-to-one with the detection chambers (15).

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

7. The rapid automatic sampling device for crude oil quality inspection according to claim 1, characterized in that: A sliding plate (41) having 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 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) having an L-shaped cross section and located in the corresponding sliding groove (42) is provided at one end of one side sliding plate (41), and the pushing rack (45) corresponds to the ratchet member (25).

8. The rapid automatic sampling device for crude oil quality inspection according to claim 2, characterized in that: A drive unit (5) for driving the circular frame plate (20) to move is arranged outside the detection cylinder (13). The drive unit (5) includes a drive groove (50) formed outside the detection cylinder (13). A drive motor (51) is arranged in the drive groove (50) through a motor base. A reciprocating lead screw (52) is installed on the main shaft of the drive motor (51). A drive magnetic plate (53) that is in sliding fit with the drive groove (50) is sleeved on the outside of the reciprocating lead screw (52) in a threaded manner.

9. The rapid automatic sampling device for crude oil quality inspection according to claim 8, characterized in that: The circular frame plate (20) is made of a magnetic material.

10. A rapid automatic sampling method for crude oil quality inspection, which uses a rapid automatic sampling device for crude oil quality inspection as described in any one of claims 1-9, characterized in that, The sampling method includes the following steps: S1. Crude oil extraction: Drive the plugging component (3) in the corresponding depth arc-shaped through groove (11) to no longer plug it, so that the crude oil flows into the material taking 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 to make it fully heated. S3. Crude oil detection: The crude oil generates gas when heated, and the gas enters the detection cavity (15). The detection component (4) in the detection cavity (15) detects the gas components. S4. Crude oil discharge: After the detection is completed, the pushing unit (2) drives the crude oil to be discharged from one side of the detection cylinder (13).

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