Anti-blocking device for oil exploitation

Abstract

The utility model provides an anti-blocking device for oil exploitation, and belongs to the technical field of oil exploitation. Comprising a filter pipe used for being fixed to a lower port of an oil exploitation pipeline, a rotatable movable rod is arranged at the axis of the middle in the filter pipe, the top end of the movable rod extends into an upper port of the filter pipe and is fixedly provided with an impeller, and the bottom end of the movable rod extends into a lower port of the filter pipe and is fixedly provided with an impeller. A filter plate rotationally arranged at the lower end opening of the filter pipe is fixed, a strip plate is erected in the middle of the lower end opening of the filter pipe, a desilting brush is elastically installed in the middle of the strip plate, and the desilting brush abuts against the middle diameter position of the filter plate. The oil filter can be mounted at a liquid inlet of a petroleum pipeline to filter oil, and is matched with flowing of the oil to drive a cleaning mechanism, so that the problem that a filtering part is blocked can be effectively avoided, and the oil filter is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil exploitation, especially relates to a prevent blocking device for oil exploitation. BACKGROUND

[0002] In the oil exploitation operation, the filter device installed at the suction end of the oil pumping pipeline is the key measure to prevent solid impurities such as sand from entering the pipeline system and to protect the oil pumping equipment. However, the filter devices in the prior art generally have some deficiencies, such as that in the working process, the intercepted solid impurities will quickly accumulate and block the filter holes, resulting in a sharp decrease in the filtering efficiency and a substantial increase in the liquid inlet resistance, which not only affects the oil production efficiency, but also requires frequent well pulling for cleaning or replacement, causing operation interruption and economic loss.

[0003] In addition, the traditional filter device adopts a static filtering mode and lacks online self-cleaning capability. Even if some designs attempt to introduce a backwashing or vibration dirt cleaning structure, the system is often complicated and the cost is increased due to the need for an additional power source, external pipeline or control equipment.

[0004] Therefore, the present application provides a prevent blocking device for oil exploitation to solve the above technical problems. SUMMARY

[0005] The technical problem to be solved by the utility model is to provide a prevent blocking device for oil exploitation to solve the problems of the existing filter device, such as the decrease in the filtering efficiency due to the blockage of the filter holes by solid impurities, the need for frequent well pulling for cleaning, and the lack of efficient self-cleaning capability in the traditional structure or the complication of the system and the increase in the cost due to the reliance on an external power source.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A prevent blocking device for oil exploitation, comprising a filter pipe for being fixed at the lower end of an oil exploitation pipeline, a movable rod rotatable is arranged at the central axis of the filter pipe, the top end of the movable rod extends into the upper end of the filter pipe and is fixed with an impeller, the bottom end of the movable rod extends into the lower end of the filter pipe and is fixed with a filter plate rotatably arranged at the lower end of the filter pipe, and a strip plate is arranged at the middle of the lower end of the filter pipe, a dredging brush is elastically mounted at the middle of the strip plate, and the dredging brush abuts against the middle of the filter plate.

[0008] Optionally, a fixed flange is arranged around the edge of the upper end of the filter pipe.

[0009] Optionally, an oil pumping channel is arranged at the middle of the filter pipe, the inner wall of the oil pumping channel is matched with the size of the impeller, and the rotation of the impeller is ensured when oil passes through the oil pumping channel.

[0010] Optionally, a fixed block is fixed in the middle of the oil pumping channel, and the middle of the movable rod is rotatably installed in the middle of the fixed block.

[0011] Optionally, a bridge plate is arranged on the side of the filter plate away from the lower end of the filter tube, and the lower end of the movable rod is fixed in the middle of the bridge plate.

[0012] Optionally, a mounting groove is formed in the side of the strip plate facing the filter plate, the dredging brush comprises a brush plate and bristles, and the brush plate of the dredging brush is elastically mounted in the mounting groove.

[0013] Optionally, a plurality of springs are fixed in the mounting groove, and the plurality of springs are connected with the brush plate of the dredging brush to form elastic mounting.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] In the above scheme, thanks to the cooperation of the movable rod, the filter plate, the impeller, the strip plate and the dredging brush, when the solid impurity-containing oil enters the oil pumping pipe from the filter pipe and is pumped out, the filter plate can filter the impurities therein, at the same time, the oil liquid passing through the oil pumping channel can drive the impeller to rotate, and then the filter plate is driven to rotate relative to the strip plate through the movable rod, so that the dredging brush can clean the impurities accumulated on the surface of the filter plate to one side, thereby effectively avoiding blockage in the mining process.

[0016] In the above scheme, thanks to the elastic mounting of the dredging brush on the strip plate, the bristles of the dredging brush can fully abut against the filter plate, thereby ensuring the cleaning effect of the impurities on the surface of the filter plate.

[0017] In summary, the device can be installed at the liquid inlet of the oil pipeline to filter the oil liquid, and the cleaning mechanism is driven by the flow of the oil liquid, which can effectively avoid the problem of blockage at the filtering part, and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated herein and forming part of the specification show embodiments of the present utility model, and together with the specification, further serve to explain the principles of the present utility model, and enable one of ordinary skill in the art to implement and use the present utility model.

[0019] Figure 1 is a structural schematic view of the utility model;

[0020] Figure 2 is a structural schematic view of the utility model;

[0021] Figure 3 is a structural schematic view of the utility model; Figure 2 is an enlarged schematic view of the structure at A in the middle;

[0022] Figure 4 Figure 1 is a structural schematic diagram of the impeller and filter plate cooperation structure of the present application.

[0023] [Reference signs]

[0024] 1, filter tube; 101, fixed flange; 2, oil pumping channel; 3, fixed block; 4, movable rod; 5, filter plate; 501, bridge plate; 6, impeller; 7, strip plate; 701, mounting groove; 702, spring; 8, dredging brush.

[0025] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structure, device and environment, and the devices and environment can be adjusted or modified by those skilled in the art according to specific needs. DETAILED DESCRIPTION

[0026] The petroleum exploitation anti-blocking device provided by the present application will be described in detail below in combination with the drawings and specific embodiments. It should be noted that in order to make the embodiments more detailed, the following embodiments are the best, preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0027] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiments can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of those skilled in the related art to realize this feature, structure or characteristic in combination with other embodiments (whether or not explicitly described).

[0028] Generally, the terms can be understood at least in part from the usage in the context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular or can be used to describe combinations of features, structures, or characteristics, in the plural. In addition, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but can instead, depending at least in part on the context, allow for the existence of other factors not necessarily explicitly described.

[0029] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0030] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0031] like Figures 1-4 As shown, this embodiment of the present invention provides an anti-clogging device for oil extraction, including a filter pipe 1 for fixing at the lower end of an oil extraction pipeline. The filter pipe 1 is cylindrical and made of high-strength alloy steel, possessing high strength and good corrosion resistance to withstand the complex environmental conditions during oil extraction, such as high pressure, high temperature, and oil containing corrosive substances, ensuring that the filter pipe 1 will not deform or be damaged during long-term use. A fixing flange 101 is provided around the upper edge of the filter pipe 1, with multiple bolt holes evenly distributed on the fixing flange 101. The filter pipe 1 can be securely installed at the lower end of the oil extraction pipeline using bolts, facilitating disassembly and replacement. During installation, sealant can be applied to the connection between the fixing flange 101 and the oil extraction pipeline to enhance sealing performance and prevent oil leakage.

[0032] A rotatable movable rod 4 is provided at the centerline of the filter tube 1. The movable rod 4 is a solid cylindrical rod. The top end of the movable rod 4 extends into the upper port of the filter tube 1 and is fixed with an impeller 6. The impeller 6 is composed of multiple blades. The blades are arc-shaped. In this embodiment, the impeller 6 has 6 blades, which are evenly distributed on the circumference of the impeller 6, so that the impeller 6 rotates more smoothly when it is impacted by oil.

[0033] The middle part of the filter pipe 1 is provided with an oil pumping channel 2, the inner wall of the oil pumping channel 2 is matched with the impeller 6, when the oil passes through the oil pumping channel 2, the flow of the oil drives the impeller 6 to rotate, and then drives the movable rod 4 to rotate. The inner wall of the oil pumping channel 2 is finely processed and smooth, so as to reduce the resistance of the oil flow and improve the passing efficiency of the oil. In specific implementation, the middle part of the oil pumping channel 2 is fixed with a fixed block 3, the middle part of the movable rod 4 is rotatably installed in the middle part of the fixed block 3, the fixed block 3 supports and positions the movable rod 4, and ensures that the movable rod 4 can stably rotate in the filter pipe 1. A bearing is arranged at the connection between the movable rod 4 and the fixed block 3, so as to reduce the friction when rotating and improve the rotation flexibility of the movable rod 4.

[0034] The bottom end of the movable rod 4 extends into the lower port of the filter pipe 1 and is fixed with a filter plate 5 rotatably arranged at the lower port of the filter pipe 1. The filter plate 5 is circular and is woven by stainless steel wires, has high filtering precision and strength, and can effectively filter out solid impurities in the oil while ensuring that the oil can smoothly pass through. A bridge plate 501 is arranged on the side of the filter plate 5 away from the lower port of the filter pipe 1. The bridge plate 501 is an arched rectangle and is made of the same stainless steel material as the filter plate 5. The bridge plate 501 is fixed on the filter plate 5 by welding, and the lower end of the movable rod 4 is fixed in the middle part of the bridge plate 501.

[0035] A strip plate 7 is arranged in the middle part of the lower port of the filter pipe 1. The strip plate 7 is a rectangle, and a mounting groove 701 is formed in the side of the strip plate 7 facing the filter plate 5. A desilting brush 8 is elastically mounted in the mounting groove 701. In specific implementation, a plurality of springs 702 are fixed in the mounting groove 701. The springs 702 are uniformly distributed in the mounting groove 701, and the other ends of the springs 702 are connected with brush plates of the desilting brush 8 to form elastic mounting, so as to ensure that the desilting brush 8 always maintains close contact with the filter plate 5 during long-term use.

[0036] The desilting brush 8 includes brush plates and bristles. The brush plates are rectangles and are made of plastic material and have certain flexibility and strength. The bristles are made of wear-resistant nylon material, and the length and density of the bristles are carefully designed to effectively clean the impurities on the surface of the filter plate 5. The brush plate part of the desilting brush 8 is elastically mounted in the mounting groove 701, so that the bristles of the desilting brush 8 can fully abut against the filter plate 5, thereby ensuring the cleaning effect of the impurities on the surface of the filter plate 5. The desilting brush 8 abuts against the middle diameter position of the filter plate 5, and when the filter plate 5 rotates under the driving of the movable rod 4, the bristles of the desilting brush 8 continuously contact the surface of the filter plate 5 to clean the impurities accumulated on the surface of the filter plate 5 to one side, which can effectively avoid blockage during mining.

[0037] The working principle of the utility model provides, the petroleum exploitation is prevented to block device, in actual use process, the petroleum fluid containing sand and other impurities pours from the lower end entrance of filter pipe 1. Fluid first impacts on the filter surface of continuously rotating filter plate 5, liquid and small particle pass through the filter hole on filter plate 5 and enter the inside of device, and solid impurities are effectively intercepted on the outer surface of filter plate 5. Filtered clean liquid flows up and pours into pumping channel 2. When fluid flows through pumping channel 2, due to its flow cross section design, flow velocity increases, and fluid kinetic energy drives impeller 6 to rotate. The rotation of impeller 6 is directly transmitted to filter plate 5 at the bottom through movable rod 4, so that filter plate 5 rotates at the same speed relative to fixed strip plate 7 and dredging brush 8. In this process, dredging brush 8 tightly attached to the surface of filter plate 5 by spring 702, uses its wear-resistant bristles to continuously scrape the working surface of filter plate 5 in rotation, so that the solid impurities intercepted by filter plate 5 are scraped away from the filter hole area in time, and are thrown to the edge area of the lower port of filter pipe 1 by centrifugal force and fluid scouring effect, effectively avoiding the local accumulation and hardening of impurities on the surface of filter plate 5, and ensuring the persistent smoothness of the filter channel. The driving energy of the entire self-cleaning process is completely derived from the kinetic energy generated by the oil production fluid itself, without any external power input, realizing online, automatic and continuous anti-blocking in the whole process of petroleum exploitation operation, and significantly improving the fault-free operation period and economic benefit of the equipment.

[0038] The utility model covers any alternative, modification, equivalent method and scheme made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following preferred embodiment of the utility model, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.

[0039] The above only is the preferred implementation mode of the utility model, and it should be pointed out that, for ordinary skilled person in the prior art, on the premise of not departing from the principle of the utility model, a plurality of improvements and refinements can also be made, and these improvements and refinements should also be regarded as the protection range of the utility model.

Claims

1. An anti-blocking device for oil extraction, comprising a filter tube (1) for being fixed at a lower end of an oil extraction pipe, characterized in that, The filter pipe (1) is provided with a rotatable movable rod (4) at the central axis of the middle part, the top end of the movable rod (4) extends into the upper port of the filter pipe (1) and is fixed with an impeller (6), the bottom end of the movable rod (4) extends into the lower port of the filter pipe (1) and is fixed with a filter plate (5) which is rotatably arranged at the lower port of the filter pipe (1), and a strip plate (7) is arranged in the middle of the lower port of the filter pipe (1), the middle part of the strip plate (7) is elastically mounted with a dredging brush (8), and the dredging brush (8) abuts against the middle diameter position of the filter plate (5).

2. The anti-blocking device for oil exploitation according to claim 1, characterized in that, The upper port edge of the filter pipe (1) is provided with a fixed flange (101).

3. The anti-blocking device for oil exploitation according to claim 1, characterized in that, The middle part of the filter pipe (1) is provided with an oil pumping channel (2), the inner wall of the oil pumping channel (2) is matched with the size of the impeller (6), so as to ensure that the oil drives the impeller (6) to rotate when passing through the oil pumping channel (2).

4. The anti-blocking device for oil exploitation according to claim 3, characterized in that, The middle part of the oil pumping channel (2) is fixed with a fixed block (3), and the middle part of the movable rod (4) is rotatably mounted in the middle part of the fixed block (3).

5. The anti-blocking device for oil exploitation according to claim 1, characterized in that, The filter plate (5) is provided with a bridge plate (501) away from the lower port of the filter pipe (1), and the lower end of the movable rod (4) is fixed in the middle part of the bridge plate (501).

6. The anti-blocking device for oil exploitation according to claim 1, characterized in that, The side of the strip plate (7) facing the filter plate (5) is provided with a mounting groove (701), the dredging brush (8) comprises a brush plate and bristles, and the brush plate part of the dredging brush (8) is elastically mounted in the mounting groove (701).

7. The anti-blocking device for oil exploitation according to claim 6, characterized in that, A plurality of springs (702) are fixed in the mounting groove (701), and the brush plate of the dredging brush (8) is connected with the plurality of springs (702) to form elastic mounting.

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