Crude oil sampling device

Abstract

The crude oil sampling device comprises a barrel body, a liquid pumping mechanism, a stirring mechanism and a driving mechanism, and the barrel body comprises a mounting hole; the liquid pumping mechanism comprises an oil pumping pipe penetrating through the mounting hole and a center rod, the center rod is sleeved with the oil pumping pipe, the oil pumping pipe comprises an oil pumping opening, external threads are arranged on the outer side wall of the center rod, and internal threads matched with the external threads are arranged on the oil pumping pipe; the stirring mechanism is connected to the oil pumping pipe and located in the barrel body, and the stirring mechanism is used for stirring crude oil in the barrel body when the oil pumping pipe rotates relative to the center rod; the driving mechanism is connected to the oil pumping pipe and the barrel body and used for driving the oil pumping pipe to rotate relative to the center rod and enabling the oil pumping pipe to move in the axial direction relative to the center rod through cooperation of the internal thread and the external thread, and the crude oil sampling device can more conveniently control the insertion distance of the oil pumping pipe when crude oil is extracted; and the precipitated crude oil can be stirred and mixed, so that the difficulty of extracting the crude oil is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of crude oil sampling, and in particular, to a crude oil sampling device. Background Art

[0002] Crude oil is usually temporarily stored in oil barrels after being mined. When using the crude oil, an oil pipe at one end of an oil pump needs to be inserted into the oil barrel, and the oil pump needs to be started before it can be discharged for use. However, in related technologies, the crude oil will precipitate and stratify in the oil barrel, and the distance that the oil pipe is inserted into the oil barrel is difficult to control, making it difficult to extract the oil in layers. Or, after the crude oil is stratified in the oil barrel, it cannot be stirred and mixed, which makes it difficult to remove the precipitated crude oil in the oil barrel. Summary of the invention

[0003] The purpose of the present disclosure is to provide a crude oil sampling device, which can more easily control the insertion distance of the oil extraction pipe when extracting crude oil, and can stir and mix the precipitated crude oil to reduce the difficulty of extracting crude oil, so as to at least partially solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a crude oil sampling device, comprising: a barrel body, comprising a mounting hole; a pumping mechanism, the pumping mechanism comprising an oil extraction pipe and a center rod passing through the mounting hole, the oil extraction pipe being sleeved on the center rod and comprising an oil extraction port, the outer side wall of the center rod being provided with an external thread, and the oil extraction pipe being provided with an internal thread matching the external thread; a stirring mechanism, the stirring mechanism being connected to the oil extraction pipe and being located in the barrel body, the stirring mechanism being used to stir the crude oil in the barrel body when the oil extraction pipe rotates relative to the center rod; and a driving mechanism, being connected to the oil extraction pipe and the barrel body, and being used to drive the oil extraction pipe to rotate relative to the center rod, and through the matching of the internal thread and the external thread, the oil extraction pipe is able to move axially relative to the center rod.

[0005] Optionally, the stirring mechanism includes: a first turntable, which is sleeved on the outer wall of the oil extraction pipe and located on a side close to the mounting hole, the first turntable is provided with a first hinge shaft; a first stirring rod is hinged on the first hinge shaft; a second stirring rod is hinged to an end of the first stirring rod away from the first hinge shaft; and a second turntable, which is sleeved on the outer wall of the center rod and rotatably connected to the center rod, the second turntable is located at the inner bottom of the barrel body, the second turntable is provided with a second hinge shaft, and the second hinge shaft is hinged to an end of the second stirring rod away from the first stirring rod; the hinge of the first stirring rod and the second stirring rod can move in a direction away from the center rod when the oil extraction port moves from the top to the bottom of the barrel body.

[0006] Optionally, the number of the first hinge shaft, the second hinge shaft, the first stirring rod and the second stirring rod is multiple and one-to-one corresponding, and the multiple first hinge shafts are arranged at intervals on the first turntable, and / or the multiple second hinge shafts are arranged at intervals on the second turntable.

[0007] Optionally, the oil extraction pipe also includes a matching piece, which includes a connecting plate and a ring, the inner wall of the ring is provided with the internal thread, the two ends of the connecting plate are respectively connected to the outer wall of the ring and the inner wall of the oil extraction pipe, and the ring, the connecting plate and the inner wall of the oil extraction pipe together form the oil extraction port.

[0008] Optionally, the driving mechanism includes a driving motor and a transmission member, the transmission member is connected to the oil extraction pipe, and the output shaft of the driving motor is drivingly connected to the transmission member.

[0009] Optionally, a slide groove extending along the length direction of the oil extraction pipe is provided on the outer wall of the oil extraction pipe, and the transmission member includes: a first pulley connected to the output shaft of the drive motor; a second pulley, sleeved on the oil extraction pipe and including a slider slidably connected to the slide groove; and a transmission belt connected to the first pulley and the second pulley; the second pulley can drive the oil extraction pipe to rotate through the slider while moving along the extension direction of the slide groove.

[0010] Optionally, the slide groove includes a first limiting portion and a second limiting portion, the first limiting portion is used to prevent the oil extraction port from being attached to the bottom of the barrel body when the slider moves relative to the slide groove, and the second limiting portion is used to prevent the oil extraction pipe from being separated from the mounting hole when the slider moves relative to the slide groove.

[0011] Optionally, the crude oil sampling device also includes a sampling mechanism connected to the liquid pumping mechanism, and a sampling port is provided on the side wall of the oil extraction pipe located outside the barrel body, and the sampling mechanism includes: a sampling tube, which is sleeved on the outer wall of the oil extraction pipe and includes a sampling space connected to the sampling port, and an oil discharge port is provided on the outer wall of the sampling tube; a connecting pipe, which is connected to the oil discharge port; and a temporary storage box, which is connected to one end of the connecting pipe away from the oil discharge port.

[0012] Optionally, the sampling mechanism further comprises a sealing component capable of sealing or unsealing the sampling port.

[0013] Optionally, the sealing assembly includes: a sealing ring, which is arranged in the sampling space, the inner wall of the sealing ring is in contact with the sampling port, and the outer wall of the sealing ring is in contact with the inner wall of the sampling space; a pull rod, which is connected to the sealing ring and passes through the sampling tube, and the pull rod can drive the sealing ring to move along the height direction of the sampling space to seal or unseal the sampling port; and a handle, which is connected to the pull rod and is located outside the sampling space.

[0014] Through the above technical solution, that is, the crude oil sampling device provided by the present disclosure, when crude oil is extracted through the crude oil sampling device, the stirring mechanism and the oil extraction port of the oil extraction pipe can be placed in the barrel body after passing through the installation hole, and the crude oil in the barrel body can be extracted by connecting the other end of the oil extraction pipe to an external device (such as a pump body), and the oil extraction pipe can be driven to rotate relative to the center rod through the driving mechanism. When the oil extraction pipe rotates relative to the center rod, the internal thread on the oil extraction pipe and the external thread on the outer wall of the center rod can also be threadedly matched, so that the oil extraction pipe can move forward and backward relative to the axial direction of the center rod. The pumping port can be moved repeatedly so that the oil extraction port can be close to or away from the mounting hole of the barrel body, so as to freely control the distance that the oil extraction pipe extends into the barrel body. For example, when the pumping port is close to the mounting hole, the crude oil near the upper part of the barrel body can be extracted, and when the pumping port is away from the mounting hole, the crude oil near the lower part of the barrel body, that is, close to the bottom of the barrel body, can be extracted. In addition, when the pumping pipe rotates relative to the center rod, the stirring mechanism connected to the pumping pipe can also stir the crude oil in the barrel body under the rotation of the pumping pipe, and then the crude oil precipitated in the barrel body can be stirred and mixed, which can reduce the difficulty of extracting the crude oil in the barrel body.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a schematic structural diagram of a crude oil sampling device provided in an exemplary embodiment of the present disclosure, wherein the device includes a partial structure in which a pumping mechanism and a stirring mechanism are inserted into a barrel; Figure 2 is an exploded view of a crude oil sampling device provided in an exemplary embodiment of the present disclosure; Figure 3 is a schematic cross-sectional structure diagram of a crude oil sampling device provided in an exemplary embodiment of the present disclosure, wherein the barrel body is not included; Figure 4 yes Figure 3 A partial enlarged view of position A in the middle; Figure 5 is a schematic cross-sectional structure diagram of a crude oil sampling device provided in an exemplary embodiment of the present disclosure from another perspective, wherein the barrel body is not included; Figure 6 Schematic diagram of the cooperation between the second pulley and the oil extraction pipe provided in an exemplary embodiment of the present disclosure.

[0017] Description of Reference Numerals 1-barrel body; 101-mounting hole; 2-liquid extraction mechanism; 210-oil extraction pipe; 211-oil extraction port; 212-matching piece; 2121-connecting plate; 2122-ring; 213-slide; 2131-first limiter; 2132-second limiter; 214-sampling port; 220-center rod; 221-external thread; 3-stirring mechanism; 310-first turntable; 311-first hinge shaft; 320-first stirring rod; 330-second stirring rod Rod; 340-second turntable; 341-second hinge shaft; 4-driving mechanism; 410-driving motor; 420-transmission member; 421-first pulley; 422-second pulley; 4221-slider; 423-transmission belt; 5-sampling mechanism; 510-sampling tube; 511-sampling space; 512-oil drain port; 520-connecting pipe; 530-temporary storage box; 540-sealing assembly; 541-sealing ring; 542-pull rod; 543-handle. DETAILED DESCRIPTION

[0018] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0019] In the present disclosure, unless otherwise specified, directional words such as "inside" and "outside" refer to the inside and outside relative to the outline of the structure or component itself; "first, second" and the like are intended to distinguish one element from another and have no order or importance. In addition, the same figure marks in different reference drawings represent the same elements.

[0020] The present invention provides a crude oil sampling device, referring to Figures 1 to 6As shown, the crude oil sampling device includes a barrel body 1, a pumping mechanism 2, a stirring mechanism 3 and a driving mechanism 4. The features contained in each component are described in detail below. Among them, the barrel body 1 includes a mounting hole 101, the pumping mechanism 2 includes an oil extraction pipe 210 and a center rod 220 that are inserted into the mounting hole 101, the oil extraction pipe 210 is sleeved on the center rod 220 and includes an oil extraction port 211, the outer wall of the center rod 220 is provided with an external thread 221, and the oil extraction pipe 210 is provided with an internal thread that cooperates with the external thread 221 (not shown in the figure); the stirring mechanism 3 is connected to the oil extraction pipe 210 and is located in the barrel body 1, and the stirring mechanism 3 is used to stir the crude oil in the barrel body 1 when the oil extraction pipe 210 rotates relative to the center rod 220; the driving mechanism 4 is connected to the oil extraction pipe 210 and the barrel body 1, and is used to drive the oil extraction pipe 210 to rotate relative to the center rod 220, and through the cooperation of the internal thread and the external thread 221, the oil extraction pipe 210 moves axially relative to the center rod 220.

[0021] Through the above scheme, that is, the crude oil sampling device provided by the present disclosure, when the crude oil is extracted through the crude oil sampling device, the stirring mechanism 3 and the oil extraction port 211 of the oil extraction pipe 210 can be placed in the barrel body 1 through the installation hole 101, and the crude oil in the barrel body 1 can be extracted by connecting the other end of the oil extraction pipe 210 to an external device (such as a pump body), and the oil extraction pipe 210 can be driven by the driving mechanism 4 to rotate relative to the center rod 220. When the oil extraction pipe 210 rotates relative to the center rod 220, the internal thread on the oil extraction pipe 210 and the external thread on the outer wall of the center rod 220 can also be threadedly matched, so that the oil extraction pipe 210 can reciprocate relative to the axial direction of the center rod 220. The pumping port 211 can be moved to be close to or away from the mounting hole 101 of the barrel body 1, so as to freely control the distance that the pumping pipe 210 extends into the barrel body 1. For example, when the pumping port 211 is close to the mounting hole 101, the crude oil near the upper part of the barrel body 1 can be pumped out. When the pumping port 211 is away from the mounting hole 101, the crude oil near the bottom of the barrel body 1 can be pumped out. In addition, when the pumping pipe 210 rotates relative to the center rod 220, the stirring mechanism 3 connected to the pumping pipe 210 can also stir the crude oil in the barrel body 1 under the rotation of the pumping pipe 210, and then the crude oil precipitated in the barrel body 1 can be stirred and mixed, which can reduce the difficulty of extracting the crude oil in the barrel body 1.

[0022] It should be noted that the layering of crude oil at different heights in the barrel body 1 and the stirring of the crude oil in the barrel body 1 mentioned in the above embodiment can be carried out separately. For example, when it is necessary to extract the crude oil at different heights in the barrel body 1 in layers, the pumping mechanism 2 and the stirring mechanism 3 can be detached from the barrel body 1, that is, the pumping mechanism 2 and the stirring mechanism 3 can be separated from the barrel body 1 from the mounting hole 101, and the stirring mechanism 3 and the pumping mechanism 2 can also be designed as a detachable structure. After the stirring mechanism 3 is disassembled and separated from the pumping mechanism 2, the oil extraction pipe 210 is operated to rotate relative to the center rod 220 outside the barrel body 1 in advance, and the oil extraction port 211 on the oil extraction pipe 210 is adjusted to a suitable extraction position through the cooperation of the internal thread and the external thread 221. Then, the pumping mechanism 2 can be inserted into the barrel body 1 through the mounting hole 101, and then the oil extraction pipe 210 can be connected to an external device (such as a pump body). The crude oil in the barrel body 1 can be extracted. When extracting crude oil layered at different heights in the barrel body 1, the position of the oil extraction port 211 can be adjusted by referring to the above steps, so that crude oil at different heights can be extracted. When the crude oil in the barrel body 1 needs to be stirred and mixed, the stirring mechanism 3 can be connected with the liquid extraction mechanism 2, and then they can be inserted into the barrel body 1 after passing through the installation hole 101 together, and the stirring mechanism 3 can be driven to stir the crude oil in the barrel body 1 by rotating the oil extraction pipe 210, so that the crude oil precipitated in the barrel body 1 can be stirred and mixed, so as to facilitate the subsequent extraction of the precipitated crude oil. Under the operation mode of the above steps, the extraction of the layered crude oil in the barrel body 1 and the stirring and mixing of the precipitated crude oil in the barrel body 1 can be performed in two steps, that is, the two operation modes can be independent of each other, so as to improve the versatility of the operation of the crude oil sampling device.

[0023] In addition, the stirring mechanism 3 and the driving mechanism 4 mentioned in the above embodiment can be any suitable structure. For example, the stirring mechanism 3 can be a fan blade structure or a stirring rod structure connected to the outer wall of the oil extraction pipe 210, and the driving mechanism 4 can be a transmission wheel structure or a gear transmission structure that can drive the oil extraction pipe 210 to rotate. To avoid redundancy, the present disclosure will respectively elaborate on the specific structures of the stirring mechanism 3 and the driving mechanism 4 below, and will not elaborate on them here.

[0024] In some embodiments, reference Figures 1 to 6As shown, the stirring mechanism 3 includes a first rotating disk 310, a first stirring rod 320, a second stirring rod 330 and a second rotating disk 340, wherein the first rotating disk 310 is sleeved on the outer wall of the oil extraction pipe 210 and is located on a side close to the first mounting hole 101, and the first rotating disk 310 is provided with a first hinge shaft 311; the first stirring rod 320 is hinged to the first hinge shaft 311; the second stirring rod 330 is hinged to one end of the first stirring rod 320 away from the first hinge shaft 311; the second rotating disk 310 is provided with a first hinge shaft 311; the first stirring rod 320 is hinged to the first hinge shaft 311; the second stirring rod 330 is hinged to the end of the first stirring rod 320 away from the first hinge shaft 311; the second rotating disk 310 is provided with a first hinge shaft 311; the first stirring rod 320 is hinged to the first hinge shaft 311; the second stirring rod 330 is hinged to the first stirring rod 320 ... The disk 340 is sleeved on the outer wall of the center rod 220 and is rotatably connected to the center rod 220. The second turntable 340 is located at the inner bottom of the barrel body 1. The second turntable 340 is provided with a second hinge shaft 341. The second hinge shaft 341 is hinged to one end of the second stirring rod 330 away from the first stirring rod 320. The junction of the first stirring rod 320 and the second stirring rod 330 can move in the direction away from the center rod 220 as the oil extraction port 211 moves from the top to the bottom of the barrel body 1. In this way, when the oil pumping pipe 210 rotates under the drive of the driving mechanism 4, the first rotating disk 310 connected to the outer wall of the oil pumping pipe 210 will also rotate along with the rotation of the oil pumping pipe 210, and because the first rotating disk 310 is fixedly connected to the outer wall of the oil pumping pipe 210, when the oil pumping pipe 210 moves relative to the axial direction of the center rod 220, the first rotating disk 310 also moves relative to the axial direction of the center rod 220, and the position of the first rotating disk 310 can be adjusted along with the movement of the center rod 220. The first rotating disk 310 is connected to the first stirring rod 320 and the second stirring rod 330 by the first hinge shaft 311, and the second rotating disk 340 is connected to the second stirring rod 330 by the second hinge shaft 341. , and the first stirring rod 320 and the second stirring rod 330 are also hingedly connected to each other. Under this arrangement, when the first turntable 310 rotates and gradually moves toward the second turntable 340 (i.e., toward the bottom of the barrel body 1), the relative angle between the first stirring rod 320 and the second stirring rod 330 will also change, and the hinge of the first stirring rod 320 and the second stirring rod 330 will gradually move toward the direction away from the center rod 220, that is, the two rod bodies are folded after being relatively bent. At this time, it can be understood that: the first stirring rod 320 and the second stirring rod 330 are folded with each other, but the first stirring rod 320 relative to the center rod 220 and the second stirring rod 330 relative to the center rod 220 are both in an unfolded state. As the first turntable 310 rotates, the rod bodies of the first stirring rod 320 and the second stirring rod 330 themselves can evenly stir the crude oil that has precipitated or layered in the barrel body 1, thereby facilitating the subsequent extraction of the precipitated crude oil in the barrel from the oil extraction pipe 210.

[0025] It should be noted that the rotation direction of the above-mentioned pumping pipe 210 corresponds to the way in which the pumping port 211 approaches or moves away from the bottom of the barrel body 1, which can be any appropriate method. For example, when the pumping pipe 210 rotates clockwise, the pumping port 211 can move in the direction close to the bottom of the barrel body 1, and when the pumping pipe 210 rotates counterclockwise, the pumping port 211 can move in the direction away from the bottom of the barrel body 1; on the contrary, when the pumping pipe 210 rotates clockwise, the pumping port 211 can also move in the direction away from the bottom of the barrel body 1, and when the pumping pipe 210 rotates counterclockwise, the pumping port 211 can also move in the direction close to the bottom of the barrel body 1. The above two methods are only that the appropriate method can be selected through the rotation direction of the external thread 221 and the internal thread, that is, either left-handed or right-handed. On the premise that the pumping pipe 210 can rotate relative to the center rod 220 and move along the axial direction of the center rod 220, the present disclosure does not specifically limit the above methods.

[0026] In addition, when the first rotating disk 310 gradually approaches the second rotating disk 340 and drives the hinge of the first stirring rod 320 and the second stirring rod 330 to move in the direction away from the center rod 220, in order to prevent the hinge of the first stirring rod 320 and the second stirring rod 330 from swinging in the wrong direction (that is, swinging in the direction close to the center rod 220 in this state), the hinge of the first stirring rod 320 and the second stirring rod 330 can be provided with a limit member (not shown in the figure) and other structures to prevent the hinge from approaching the direction close to the center rod 220. Similarly, the first hinge shaft 311 and the second hinge shaft 341 can also be provided with the above-mentioned limit member and other structures respectively. Under this limiting method, one of the dead point positions of the first stirring rod 320 and the second stirring rod 330 can be Figure 1 and Figure 2 The state shown, that is, the first stirring rod 320 and the second stirring rod 330 are both in a vertical state, and the hinges of the first stirring rod 320 and the second stirring rod 330 can no longer approach the center rod 220, that is, the hinges of the first stirring rod 320 and the second stirring rod 330 can only move in the direction away from the center rod 220, so as to ensure that when the first turntable 310 rotates, the first stirring rod 320 and the second stirring rod 330 can stir the crude oil in the barrel body 1, that is, the situation of swinging in the wrong direction will no longer occur.

[0027] In addition to the above-mentioned embodiment, the sum of the lengths of the first stirring rod 320 and the second stirring rod 330 mentioned in the above-mentioned embodiment can also be slightly smaller than the height of the barrel body 1, that is, installation space can be reserved for the first turntable 310 and the second turntable 340 located in the barrel body 1, that is, the sum of the thickness of the first turntable 310 and the second turntable 340 plus the length of the first stirring rod 320 and the second stirring rod 330 can be equal to the height of the barrel body 1. Under this arrangement, when the first stirring rod 320 and the second stirring rod 330 are in the dead point position, the first turntable 310 and the second turntable 340 can also be respectively attached to the inner top wall and the inner bottom wall of the barrel body 1, and thus can also play a certain limiting role on the first stirring rod 320 and the second stirring rod 330. At this time, the first stirring rod 320 and the second stirring rod 330 are both in a vertical state. Under this length arrangement, refer to Figure 1 As shown, the first stirring rod 320 and the second stirring rod 330 can stir the area swept by one-half of the inner diameter of the barrel body 1, or, when it is necessary to stir all the crude oil inside the barrel body 1, the diameter of the barrel body 1 can be appropriately reduced, that is, reduced to a diameter size with the same length as the area that can be stirred by the first stirring rod 320 and the second stirring rod 330, so that all the crude oil inside the barrel body 1 can be stirred, or, the length of the first stirring rod 320 and the second stirring rod 330 can be appropriately increased, so that the crude oil at the inner edge of the barrel body 1 can be covered. The above two methods can both achieve the stirring effect on the crude oil in the barrel body 1, and the present disclosure does not make specific limitations on this.

[0028] In some embodiments, reference Figures 1 to 6 As shown, the number of the first hinge shaft 311, the second hinge shaft 341, the first stirring rod 320 and the second stirring rod 330 is multiple and one-to-one corresponding, and the multiple first hinge shafts 311 are arranged at intervals on the first rotating disk 310, and / or, the multiple second hinge shafts 341 are arranged at intervals on the second rotating disk 340. In this way, the multiple first stirring rods 320 and the multiple second stirring rods 330 can improve the efficiency of stirring the crude oil in the barrel body 1, that is, it can be referred to Figure 1 and Figure 2 As shown, in Figure 1 and Figure 2In the example of the embodiment, the number of the first stirring rod 320 and the second stirring rod 330 can be three respectively, and the number of the three first stirring rods 320 and the second stirring rod 330 can be arranged around the central rod 220 at intervals, and connected to the first rotating disk 310 and the second rotating disk 340 at intervals, and the interval angle between the three first stirring rods 320 and / or the three second stirring rods 330 relative to the central rod 220 can be 120°. In this arrangement, when the first rotating disk 310 and the second rotating disk 340 rotate, the three first stirring rods 320 and the three second stirring rods 330 can be driven to rotate the barrel body 1 at the same time. The crude oil in the barrel 1 can be stirred, so that the precipitation or stratification of the crude oil in the barrel body 1 can be stirred more evenly. In the above embodiment, the number of the first stirring rod 320 and the second stirring rod 330 is three for example. In the embodiment not shown in the figure, the number of the first hinge shaft 311, the second hinge shaft 341, the first stirring rod 320 and the second stirring rod 330 can also be two, four, five or more, and the spacing angles between the multiple first stirring rods 320 or the multiple second stirring rods 330 can be the same or different, and the present disclosure does not make specific limitations on this.

[0029] In some embodiments, reference Figure 3 and Figure 4 As shown, the oil extraction pipe 210 also includes a fitting 212, which includes a connecting plate 2121 and a collar 2122. The inner wall of the collar 2122 is provided with an internal thread. The two ends of the connecting plate 2121 are respectively connected to the outer wall of the collar 2122 and the inner wall of the oil extraction pipe 210. The collar 2122, the connecting plate 2121 and the inner wall of the oil extraction pipe 210 together form an oil extraction port 211. In this way, through the connection between the connecting plate 2121 and the collar 2122, and through the internal thread provided on the inner wall of the collar 2122, the rotation operation of the oil extraction pipe 210 relative to the center rod 220 can be realized, that is, it can be referred to Figure 4 As shown, when the internal thread arranged on the inner wall of the collar 2122 is threadedly matched with the external thread 221 arranged on the outer wall of the center rod 220, and when the pumping pipe 210 rotates relative to the center rod 220, the outer wall of the pumping pipe 210 can also fit the inner wall of the mounting hole 101. Under the relative rotation between the internal thread and the external thread 221, the collar 2122 and the connecting plate 2121 will also be driven to rotate around the center rod 220 as the axis. The pumping port 211 formed by the collar 2122, the connecting plate 2121 and the inner wall of the pumping pipe 210 can also allow the crude oil in the barrel body 1 to enter the pumping pipe 210 for subsequent extraction. Figure 4As shown, the fitting 212 formed by the connecting plate 2121 and the collar 2122 is located in the oil extraction pipe 210, which can further improve the structural strength of the oil extraction pipe 210 and prevent the oil extraction pipe 210 from being deformed by the oil pressure in the barrel or the external collision. In addition, the fitting 212 can be arranged in plurality along the length direction of the oil extraction pipe 210, and can be threadedly connected with the external thread 221 of the center rod 220 through the internal threads of the plurality of collars 2122, thereby improving the stability of the oil extraction pipe 210 during the rotation relative to the center rod 220. Figure 4 As shown, the connecting plate 2121 arranged on a single matching piece 212 may also be multiple. Figure 4 The two are exemplary. The two connecting plates 2121 are arranged at intervals along the circumference of the ring 2122, and the two connecting plates 2121 are spaced 180° apart. The two connecting plates 2121, the ring 2122 and the inner wall of the oil extraction pipe 210 can form two U-shaped oil extraction ports 211. In the embodiment not shown in the drawings, the number of connecting plates 2121 can also be three, four or more, and more oil extraction ports 211 can be formed by the cooperation of multiple connecting plates 2121, the ring 2122 and the inner wall of the oil extraction pipe 210. The angles of the circumferential spacing of the multiple connecting plates 2121 on the ring 2122 can be the same or different, and the present disclosure does not make specific limitations on this.

[0030] In some embodiments, reference Figures 1 to 6 As shown, the driving mechanism 4 includes a driving motor 410 and a transmission member 420, the transmission member 420 is connected to the pumping pipe 210, and the output shaft of the driving motor 410 is connected to the transmission member 420. In this way, the pumping pipe 210 can be driven by the output shaft of the driving motor 410 to drive the transmission member 420 to rotate around the axis of the center rod 220, and the pumping pipe 210 can be driven to rotate by the driving motor 410, which can provide a greater force for rotation for the pumping pipe 210. When the crude oil inside the barrel 1 is precipitated and it is difficult to rotate the pumping pipe 210, the force provided by the driving motor 410 can overcome the situation that the pumping pipe 210 is difficult to rotate in the barrel 1, thereby improving the rotation efficiency of the pumping pipe 210, and the transmission member 420 in the present disclosure can be any component with a transmission function, such as a suitable transmission method such as a pulley set or a gear set, which will be given in detail in the present disclosure below, and will not be repeated here.

[0031] In some embodiments, reference Figures 1 to 6As shown, a slide groove 213 extending along the length direction of the oil extraction pipe 210 is provided on the outer wall of the oil extraction pipe 210, and the transmission member 420 includes a first pulley 421, a second pulley 422 and a transmission belt 423. The first pulley 421 is connected to the output shaft of the drive motor 410; the second pulley 422 is sleeved on the oil extraction pipe 210 and includes a slider 4221 slidably connected to the slide groove 213; the transmission belt 423 is connected to the first pulley 421 and the second pulley 422; the second pulley 422 can drive the oil extraction pipe 210 to rotate through the slider 4221 while moving along the extension direction of the slide groove 213. In this way, the rotation of the pumping pipe 210 can be realized through the transmission connection of the first pulley 421, the transmission belt 423 and the second pulley 422. Moreover, through this pulley transmission mode, the pumping pipe 210 can be driven to rotate more smoothly, and it can be suitable for long-distance transmission, which is more convenient for installing other mechanisms such as the sampling mechanism 5 (which will be described in detail below) in the vacant space of the crude oil sampling device. In addition, the slider 4221 provided on the second pulley 422 cooperates with the slide groove 213 on the pumping pipe 210, which can also facilitate the pumping pipe 210 to rotate along the center rod 213 while rotating. 20 moves in the axial direction, that is, it can be understood that no matter whether the second pulley 422 rotates clockwise or counterclockwise, one of the two side walls of the slider 4221 will always fit the inner wall of the slide groove 213. In this fitting mode, the slider 4221 on the second pulley 422 will drive the pumping pipe 210 and the slide groove 213 to rotate, and at the same time, due to the cooperation between the internal thread and the external thread 221, when the pumping pipe 210 moves in the axial direction of the center rod 220, it can be achieved by the slider 4221 reciprocating along the extension direction of the slide groove 213. Figure 1 and Figure 6 It can be understood that: when the oil extraction pipe 210 moves toward the bottom direction close to the barrel body 1, the slider 4221 moves toward the top of the slide groove 213 relative to the slide groove 213; when the oil extraction pipe 210 moves toward the bottom direction away from the barrel body 1, the slider 4221 moves toward the bottom of the slide groove 213 relative to the slide groove 213. Through this matching relationship, the oil extraction pipe 210 can be driven to rotate through the driving mechanism 4, and the oil extraction pipe 210 can also be driven to reciprocate in the axial direction of the center rod 220 through the matching of the slider 4221 and the slide groove 213.

[0032] It should be noted that the length of the chute 213 extending along the length direction of the oil extraction pipe 210 can be consistent with the internal height of the barrel body 1. When the length of the chute 213 is the same as the height of the barrel body 1, the oil extraction pipe 210 can extract crude oil at any height in the barrel body 1, and then the oil extraction pipe 210 can be inserted into a specified height in the specified barrel body 1 to extract the stratified crude oil at the specified height. Moreover, the chute 213 is only grooved on the outer surface of the oil extraction pipe 210, and does not penetrate the side wall of the oil extraction pipe 210, thereby preventing the oil extraction pipe 210 from leaking when pumping oil.

[0033] In some embodiments, reference Figures 1 to 6 As shown, the slide groove 213 includes a first limiting portion 2131 and a second limiting portion 2132. The first limiting portion 2131 is used to prevent the oil extraction port 211 from being attached to the bottom of the barrel body 1 when the slider 4221 moves relative to the slide groove 213, and the second limiting portion 2132 is used to prevent the oil extraction pipe 210 from being separated from the mounting hole 101 when the slider 4221 moves relative to the slide groove 213. In this way, the first limiting portion 2131 and the second limiting portion 2132 can limit the slider 4221 when the oil extraction pipe 210 moves axially relative to the center rod 220, and under the function of limiting, the oil extraction pipe 210 can also be prevented from being separated from the mounting hole 101 during axial movement, which can further improve the stability of the oil extraction pipe 210 during axial movement. That is, it can be understood that when the oil extraction pipe 210 moves toward the bottom of the barrel body 1, the first limiting portion 2131 can limit the slider 4221 at the top end of the slide groove 213, and when the oil extraction pipe 210 moves toward the bottom away from the barrel body 1, the second limiting portion 2132 can limit the slider 4221 at the bottom end of the slide groove 213, thereby allowing the slider 4221 to slide in the slide groove 213 between the first limiting portion 2131 and the second limiting portion 2132.

[0034] In some embodiments, reference Figures 1 to 6As shown, the crude oil sampling device also includes a sampling mechanism 5 connected to the pumping mechanism 2, a sampling port 214 is provided on the side wall of the oil extraction pipe 210 located outside the barrel body 1, the sampling mechanism 5 includes a sampling tube 510, a connecting tube 520 and a temporary storage box 530, the sampling tube 510 is sleeved on the outer side wall of the oil extraction pipe 210 and includes a sampling space 511 connected to the sampling port 214, an oil discharge port 512 is provided on the outer side wall of the sampling tube 510; the connecting tube 520 is connected to the oil discharge port 512; the temporary storage box 530 is connected to one end of the connecting tube 520 away from the oil discharge port 512. In this way, when the crude oil in the barrel body 1 is extracted through the oil extraction pipe 210, if it is necessary to sample and test the crude oil in the barrel body 1, the sampling pipe 510 can be sleeved on the outer wall of the oil extraction pipe 210, and part of the crude oil can flow out from the sampling port 214 during the extraction process of crude oil. The crude oil can enter the sampling pipe 510 and enter the connecting pipe 520 through the oil discharge port 512, and finally enter the temporary storage box 530. The staff can then perform a sample test on the temporary storage box 530. 0 for sampling and testing, such as testing the density or concentration of the crude oil, and the temporary storage box 530 and the connecting pipe 520 can also be designed to be detachably connected. When the crude oil in the temporary storage box 530 needs to be taken out for testing, the temporary storage box 530 and the connecting pipe 520 can be separated, and the connecting pipe 520 can be sealed by a stop valve (not shown in the figure) or other sealing structures capable of closing the connecting pipe 520 to prevent the crude oil from flowing out. At this time, the temporary storage box 530 can be moved away for testing.

[0035] In some embodiments, reference Figures 1 to 6 As shown, the sampling mechanism 5 also includes a sealing component 540 capable of sealing or unsealing the sampling port 214. In this way, unlike the above-mentioned method of sealing the connecting pipe 520, the sealing component 540 can seal the sampling port 214 when there is no need to test the crude oil, thereby preventing a small amount of crude oil from flowing out of the sampling port 214 when it is extracted through the oil extraction pipe 210, and the sealing component 540 can be any structure capable of sealing the sampling port 214, such as a sealing block or a sealing plate, etc. The present disclosure will expand on the detailed structure of the sealing component 540 below, and will not be repeated here.

[0036] In some embodiments, reference Figures 1 to 6As shown, the sealing assembly 540 includes a sealing ring 541, a pull rod 542 and a handle 543. The sealing ring 541 is arranged in the sampling space 511, the inner wall of the sealing ring 541 is in contact with the sampling port 214, and the outer wall of the sealing ring 541 is in contact with the inner wall of the sampling space 511; the pull rod 542 is connected to the sealing ring 541 and is passed through the sampling tube 510. The pull rod 542 can drive the sealing ring 541 to move along the height direction of the sampling space 511 to seal or unseal the sampling port 214; the handle 543 is connected to the pull rod 542 and is located outside the sampling space 511. In this way, when it is necessary to sample and test the extracted crude oil, the sampling port 214 can be unsealed to allow the crude oil to enter the sampling space 511 by manually pulling the handle 543 to drive the pull rod 542 and the sealing ring 541, that is, reference can be made to the Figure 1 and Figure 5 As shown, at this time, the sealing ring 541 is in a state of sealing at the sampling port 214. At this time, the oil extraction pipe 210 can be rotated to move it slightly downward, that is, after fine-tuning it toward the bottom of the barrel body 1, the handle 543 is manually pulled up to drive the pull rod 542 and the sealing ring 541 to move upward. At this time, the sealing ring 541 is no longer sealed at the sampling port 214. At this time, a small portion of the extracted crude oil can be taken out of the sampling port 214 to facilitate sampling.

[0037] It should be noted that, in order to better observe the relative position of the sealing ring 541 and the sampling port 214, that is, to observe whether the sealing ring 541 can be completely fitted to the sampling port 214 to achieve sealing, the sampling tube 510 can be designed as a transparent tube body, so that the staff can directly observe the relative position of the sealing ring 541 and the sampling port 214 through the sampling tube 510 of the transparent tube body, so as to better achieve the sealing of the sampling port 214. In addition, in order to facilitate the manual driving of the sealing ring 541 to move in the sampling space 511, the number of handles 543 and pull rods 542 can also be multiple and one-to-one corresponding, and one end of the multiple pull rods 542 can also be connected to the sealing ring 541. In this way, the staff can more conveniently drive the sealing ring 541 to move in the sampling space 511 by pulling multiple handles 543 at the same time. For example, Figure 5 There can be two handles 543 and two pull rods 542 in the embodiment, and they correspond to each other one by one.

[0038] The present disclosure exemplarily describes a method for using the crude oil sampling device, which may include the following steps: After the pumping mechanism 2 and the stirring mechanism 3 are assembled, they are passed through the mounting hole 101 and extended into the barrel body 1. One end of the oil extraction pipe 210 is inserted into the barrel body 1, and the other end is connected to the pump body. The crude oil in the barrel body 1 is extracted from the oil extraction pipe 210 through the pump body. The first pulley 421 is driven to rotate by the driving motor 410, and the first pulley 421 drives the transmission belt 423 to transmit. The transmission belt 423 drives the second pulley 422 to rotate. The second pulley 422 and the oil extraction pipe 210 will also rotate under the cooperation of the slider 4221 and the slide groove 213. The pumping pipe 210 is driven to rotate. The rotation of the pumping pipe 210 drives the matching piece 212 on the inner wall of the pumping pipe 210, namely the connecting plate 2121 and the collar 2122, to rotate. The inner thread of the inner wall of the collar 2122 is threadedly matched with the outer thread 221 of the center rod 220, which can drive the pumping pipe 210 to move along the axial direction of the center rod 220, and then to rise and fall relative to the barrel body 1, so as to be able to extract crude oil at different heights in the barrel body 1 through the pumping port 211. When the pumping pipe 210 rotates, the oil gradually When the oil pump 210 goes deep into the barrel body 1 and moves toward the bottom of the barrel body 1, the first rotating disk 310 will also rotate with the rotation of the oil pumping pipe 210, and drive the first stirring rod 320, the second stirring rod 330 and the second rotating disk 340 to rotate. The first stirring rod 320 and the second stirring rod 330 will fold with each other in this state of movement, and the hinge of the first stirring rod 320 and the second stirring rod 330 will extend in the direction away from the center rod 220. The first stirring rod 320 and the second stirring rod 330 will The precipitated and stratified crude oil in the barrel 1 is stirred to facilitate the extraction of crude oil by the pumping pipe 210. Moreover, when it is necessary to sample and test the crude oil in the barrel 1, the handle 543 can be pulled manually to drive the pull rod 542 to move, thereby driving the sealing ring 541 to be unsealed at the sampling port 214. At this time, a small amount of the extracted crude oil will flow out from the sampling port 214, enter the sampling space 511, and then enter the connecting pipe 520 from the oil discharge port 512, and finally enter the temporary storage box 530 for the staff to sample and test.

[0039] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0040] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0041] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A crude oil sampling device, characterized in that: include: a barrel body, including a mounting hole; A pumping mechanism, the pumping mechanism comprising an oil pumping pipe and a center rod passing through the mounting hole, the oil pumping pipe being sleeved on the center rod and comprising an oil pumping port, an outer side wall of the center rod being provided with an external thread, and the oil pumping pipe being provided with an internal thread matching the external thread; a stirring mechanism, the stirring mechanism being connected to the oil pumping pipe and being located in the barrel body, the stirring mechanism being used for stirring the crude oil in the barrel body when the oil pumping pipe rotates relative to the center rod; and The driving mechanism is connected to the oil extraction pipe and the barrel body, and is used to drive the oil extraction pipe to rotate relative to the center rod, and through the cooperation of the internal thread and the external thread, the oil extraction pipe can move axially relative to the center rod.

2. The crude oil sampling device according to claim 1, characterized in that: The stirring mechanism comprises: A first rotating disk is sleeved on the outer wall of the oil pumping pipe and is located at a side close to the mounting hole, and the first rotating disk is provided with a first hinge shaft; A first stirring rod, hinged to the first hinge shaft; A second stirring rod, hinged to an end of the first stirring rod away from the first hinge axis; and a second rotating disk, sleeved on the outer side wall of the central rod and rotatably connected to the central rod, the second rotating disk is located at the inner bottom of the barrel body, a second hinge shaft is provided on the second rotating disk, and the second hinge shaft is hinged to an end of the second stirring rod away from the first stirring rod; The hinged joint of the first stirring rod and the second stirring rod can move in a direction away from the central rod as the oil extraction port moves from the top to the bottom of the barrel body.

3. The crude oil sampling device according to claim 2, characterized in that: The first hinge shaft, the second hinge shaft, the first stirring rod and the second stirring rod are multiple in number and correspond to each other one by one. A plurality of the first hinge shafts are arranged at intervals on the first rotating disk, and / or a plurality of the second hinge shafts are arranged at intervals on the second rotating disk.

4. The crude oil sampling device according to claim 1, characterized in that: The oil extraction pipe also includes a matching piece, which includes a connecting plate and a collar. The inner wall of the collar is provided with the internal thread. The two ends of the connecting plate are respectively connected to the outer wall of the collar and the inner wall of the oil extraction pipe. The collar, the connecting plate and the inner wall of the oil extraction pipe together form the oil extraction port.

5. The crude oil sampling device according to claim 1, characterized in that: The driving mechanism comprises a driving motor and a transmission member, wherein the transmission member is connected to the oil pumping pipe, and an output shaft of the driving motor is drivingly connected to the transmission member.

6. The crude oil sampling device according to claim 5, characterized in that: The outer side wall of the oil pumping pipe is provided with a slide groove extending along the length direction of the oil pumping pipe, and the transmission member includes: A first pulley connected to the output shaft of the driving motor; A second pulley, sleeved on the oil pumping pipe and comprising a sliding block slidably connected to the sliding groove; and A transmission belt connected to the first pulley and the second pulley; The second pulley can drive the oil extraction pipe to rotate through the slider and move along the extending direction of the slide groove at the same time.

7. The crude oil sampling device according to claim 6, characterized in that: The slide groove includes a first limiting portion and a second limiting portion, the first limiting portion is used to prevent the oil extraction port from being attached to the bottom of the barrel body when the slider moves relative to the slide groove, and the second limiting portion is used to prevent the oil extraction pipe from being separated from the mounting hole when the slider moves relative to the slide groove.

8. The crude oil sampling device according to claim 1, characterized in that: The crude oil sampling device further comprises a sampling mechanism connected to the liquid pumping mechanism, a sampling port is provided on the side wall of the oil pumping pipe located outside the barrel body, and the sampling mechanism comprises: A sampling tube, which is sleeved on the outer side wall of the oil extraction pipe and comprises a sampling space communicated with the sampling port, and an oil discharge port is arranged on the outer side wall of the sampling tube; a connecting pipe connected to the oil discharge port; and The temporary storage box is connected to an end of the connecting pipe away from the oil discharge port.

9. The crude oil sampling device according to claim 8, characterized in that: The sampling mechanism further comprises a sealing assembly capable of sealing or unsealing the sampling port.

10. The crude oil sampling device according to claim 9, characterized in that: The sealing assembly comprises: A sealing ring is arranged in the sampling space, the inner wall of the sealing ring is attached to the sampling port, and the outer wall of the sealing ring is attached to the inner wall of the sampling space; a pull rod connected to the sealing ring and passing through the sampling tube, the pull rod being capable of driving the sealing ring to move along the height direction of the sampling space to seal or unseal the sampling port; and A handle is connected to the pull rod and is located outside the sampling space.

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