Oil filling crane pipe, oil tank, oil filling system and application thereof

Abstract

The application discloses a kind of oil filling crane pipes, oil storage tank, oil filling system and application thereof, the oil filling crane pipe can include: crane pipe body, cover plate, movable inner tube, oil cleaning assembly and drive assembly;The side wall of crane pipe body is provided with oil inlet pipe for external oil pipe, and the bottom is provided with opening, and the cover plate is connected at the bottom of crane pipe body;Movable inner tube and oil cleaning assembly are located in the hollow structure of crane pipe body, and drive assembly is installed on the outer wall of crane pipe body, and drive assembly is connected with movable inner tube;The oil scraping part of oil cleaning assembly is nestedly installed on the upper portion of movable inner tube, and movable inner tube and oil scraping part are driven under the drive of drive assembly, to realize the telescopic length of movable inner tube at opening and the sliding of oil scraping part in crane pipe body.The above-mentioned oil filling crane pipe is simple in structure, convenient to install, and the length of movable inner tube can be freely telescopic, effectively ensures that the depth of oil filling crane pipe is immersed into tank opening, due to the design of oil scraping part, the possibility of oil stain dropping is avoided, and environmental pollution is reduced.

Description

Technical Field

[0001] This invention relates to the field of fluid loading and unloading technology, especially to the field of oil storage and transportation loading arms, and particularly to an oil loading arm, an oil storage tank, an oil loading system and their applications. Background Technology

[0002] During oilfield production or daily oil loading, oil is loaded using loading arms. However, due to the inconsistent height of the loading platforms at each site, the loading arms do not extend deep enough into the tank opening to meet the required 20-centimeter depth. This can easily cause oil splashing and fire hazards. In addition, during the loading process, employees need to repeatedly install and disassemble the loading arms, each weighing over 50 kilograms, resulting in high labor intensity. Furthermore, the oil residue on the loading arms after loading can easily get on their clothes and drip onto the ground, causing environmental pollution. Summary of the Invention

[0003] The inventors discovered that, to solve this problem, technologies such as the one published in CN209456071U, entitled "Loading Arm Sealing Mechanism and Loading Arm Device," have emerged. This technology allows for axial expansion and contraction, locking with the slot to achieve sealed oil filling. However, when applying this product in the field, the inventors found that it still has the following technical defects: First, after use, crude oil or refined oil adheres to the inside of the loading arm (pipeline), and incomplete oil removal has created a hazard; second, the oil inside the device easily drips, causing environmental pollution; third, when used in sealed oil tanks, operators cannot monitor changes in the liquid level within the tank, easily leading to excessively high oil levels exceeding the installation oil level of tank trucks and other containers.

[0004] In view of the above problems, the present invention is proposed to provide an oil loading arm, oil storage tank, oil loading system and its application that overcomes or at least partially solves the above problems.

[0005] In a first aspect, embodiments of the present invention provide an oil loading arm, which may include: an arm body, a cover plate, a movable inner tube, an oil cleaning assembly, and a drive assembly.

[0006] The loading arm body is cylindrical, and the side wall of the loading arm body is provided with an oil inlet for connecting an external oil pipe. The bottom is provided with an opening, and the cover plate is connected to the bottom of the loading arm body to cover the opening.

[0007] The movable inner tube and the oil cleaning assembly are located in the hollow structure of the loading arm body, the drive assembly is installed on the outer wall of the loading arm body, and the drive assembly is connected to the movable inner tube;

[0008] The oil scraping component of the oil cleaning assembly is nested in the upper part of the movable inner tube. The movable inner tube and the oil scraping component are driven by the drive assembly to realize the extension and retraction of the movable inner tube at the opening and the sliding of the oil scraping component within the loading arm body.

[0009] Optionally, the oil cleaning assembly may include: an oil scraping component and a first oil blocking component, wherein the oil scraping component is nested and installed in the upper part of the movable inner tube; the first oil blocking component is located in the lower part of the oil inlet and is installed on the inner wall of the loading arm body; the movable inner tube, driven by the driving assembly, movably passes through the first through hole on the first oil blocking component and extends out of the opening.

[0010] Optionally, the oil-cleaning assembly may further include: a second oil-blocking component, the second oil-blocking component being located below the first oil-blocking component and installed on the inner wall of the loading arm body, the movable inner tube being movably passed through the second through hole on the second oil-blocking component under the drive of the driving assembly, and extending out of the opening;

[0011] The first oil-blocking component, the second oil-blocking component, and the inner wall of the loading arm body form a lubricating oil chamber, and the loading arm body is provided with an oil inlet communicating with the lubricating oil chamber.

[0012] Optionally, the inner side of the oil scraping component is provided with an internal thread, and the outer side of the movable inner tube is provided with an external thread, and the oil scraping component and the movable inner tube are threadedly connected.

[0013] Optionally, the outer sides of the first oil-blocking component and the second oil-blocking component are provided with external threads, and the inner wall of the loading arm body is provided with internal threads that match the external threads. The first oil-blocking component and the second oil-blocking component are respectively threadedly connected to the loading arm body.

[0014] Optionally, the oil loading arm may further include: a first sealing ring assembly, wherein the first sealing ring assembly includes a plurality of sealing rings;

[0015] The inner side of the first oil-blocking component and / or the second oil-blocking component is provided with an annular groove, and a plurality of the sealing rings are located in the annular groove.

[0016] Optionally, the oil loading arm may further include: a second sealing ring assembly; the second sealing ring assembly includes a plurality of sealing rings;

[0017] The outer side of the oil scraping component has an annular groove, and multiple sealing rings are located in the annular groove.

[0018] Optionally, the oil loading arm may further include: an annular washer;

[0019] The annular washer is located on the lower end face of the oil scraper component;

[0020] And / or,

[0021] The annular gasket is located on the upper end face of the first oil-blocking component.

[0022] Optionally, the oil loading arm may further include a ground wire connected to the outer wall of the loading arm body.

[0023] Optionally, the drive assembly may include: a main pulley, a coiled pulley, and a pulley rope;

[0024] The main pulley is installed at the top of the loading arm body, the coiling reel is installed on the outer wall of the loading arm body, the pulley rope abuts against the outside of the main pulley, one end is connected to the coiling reel, and the other end passes through the loading arm body and is connected to the movable inner tube.

[0025] Optionally, the drive assembly may further include: an auxiliary pulley, which is mounted on the outer wall of the loading arm body and located between the main pulley and the coiling pulley, with the pulley rope abutting against the outer side of the auxiliary pulley.

[0026] Optionally, the oil loading arm may further include a probe for detecting the liquid level, wherein the probe may adhere to the outer wall of the movable inner tube when the inner tube is extended.

[0027] Secondly, embodiments of the present invention provide an application of the oil loading arm described in the first aspect in an oil loading system.

[0028] Thirdly, embodiments of the present invention provide an oil storage tank, characterized in that it includes the oil loading arm described in the first aspect; the oil outlet pipe of the oil storage tank is connected to the oil inlet pipe of the loading arm body.

[0029] Fourthly, embodiments of the present invention provide an oil loading system, characterized in that it comprises an oil storage tank, an oil tanker, and an oil loading arm as described in the first aspect;

[0030] The oil outlet pipe of the oil storage tank is connected to the oil inlet pipe of the loading arm body;

[0031] The movable inner tube of the loading arm extends out of the opening and can be located at the filling port of the tanker truck.

[0032] Optionally, the system may further include: a main control unit; the main control unit is connected to the probe of the oil loading arm, and is used to receive the liquid level detected by the probe and issue corresponding prompt information.

[0033] The beneficial effects of the above-mentioned technical solutions provided in the embodiments of the present invention include at least the following:

[0034] This invention provides an oil loading arm, an oil storage tank, an oil loading system, and their applications. The oil loading arm may include: an loading arm body, a cover plate, a movable inner tube, an oil cleaning component, and a drive component. The loading arm body is cylindrical, with an oil inlet for connecting an external oil pipe on its side wall and an opening at the bottom. The cover plate is connected to the bottom of the loading arm body to cover the opening. The movable inner tube and the oil cleaning component are located in the hollow structure of the loading arm body. The drive component is installed on the outer wall of the loading arm body and is connected to the movable inner tube. The oil scraping component of the oil cleaning component is nested in the upper part of the movable inner tube. Under the drive of the drive component, the movable inner tube extends and retracts at the opening, and the oil scraping component slides within the loading arm body.

[0035] The refueling arm provided in this embodiment of the invention has a simple structure and is easy to install. The length of the freely extendable inner tube effectively ensures the depth of the refueling arm submerged in the tank opening, improving the safety factor and preventing accidents. Furthermore, this refueling arm completely overcomes the problem of oil splashing and accidents caused by inconsistent platform heights at filling points in the past. Moreover, the design of the oil skimmer component avoids the possibility of oil dripping, reducing environmental pollution.

[0036] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0037] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0038] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0039] Figure 1 This is a schematic diagram of the oil loading arm provided in an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the oil loading system provided in an embodiment of the present invention;

[0041] Among them, 1 is the loading arm; 2 is the storage tank; 3 is the tank truck; and 4 is the main control unit.

[0042] 11 is the loading arm body; 12 is the cover plate; 13 is the movable inner tube; 14 is the oil cleaning assembly; 15 is the drive assembly; 16 is the first sealing ring assembly; 17 is the second sealing ring assembly; 18 is the annular washer; 19 is the ground wire;

[0043] 111 is the oil inlet; 112 is the opening; 113 is the lubricating oil chamber; 114 is the oil filling port;

[0044] 141 is the oil scraping component; 142 is the first oil blocking component; 143 is the second oil blocking component;

[0045] 151 is the main pulley; 152 is the coiled rope pulley; 153 is the pulley rope; 154 is the auxiliary pulley. Detailed Implementation

[0046] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0047] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "far," "near," "front," and "rear," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] This invention provides a new type of environmentally friendly internal scraper loading arm. Since the loading arm must be submerged at least 20 centimeters below the tank opening before loading, this loading arm solves the problem of inconsistent loading platform heights at different loading stations when loading and unloading crude oil from tank trucks. Furthermore, this loading arm avoids safety hazards caused by oil splashing and prevents environmental pollution caused by oil dripping from the loading arm wall after loading.

[0050] Reference Figure 1As shown, the loading arm 1 may include: a loading arm body 11, a cover plate 12, a movable inner tube 13, an oil cleaning component 14, and a drive component 15; the loading arm body 11 is cylindrical, with an oil inlet 111 for connecting an external oil pipe on its side wall and an opening 112 at its bottom; the cover plate 12 is connected to the bottom of the loading arm body 11 to cover the opening 112; the movable inner tube 13 and the oil cleaning component 14 are located in the hollow structure of the loading arm body 11; the drive component 15 is installed on the outer wall of the loading arm body 11 and is connected to the movable inner tube 13; the oil scraping component 141 of the oil cleaning component 14 is nested in the upper part of the movable inner tube 13; the movable inner tube 13 and the oil scraping component 141 are driven by the drive component 15 to achieve the extension and retraction of the movable inner tube 13 at the opening and the sliding of the oil scraping component 141 within the loading arm body 11.

[0051] It should be noted that the loading arm body in the embodiments of the present invention is a hollow cylindrical shape, closed at the top and open at the bottom for extending a movable inner tube, and has an oil inlet port on the side wall for connection with the oil pipe. The oil inlet port on the loading arm body can be either welded to an oil inlet pipe or a connection port; the embodiments of the present invention do not specifically limit this. The movable inner tube in the embodiments of the present invention can also be tubular, with its upper end wall connected to the drive assembly. The loading arm body in the embodiments of the present invention can have a diameter of φ140mm and a length of 2.5m to 3.0m, and be made of nickel-chromium alloy; the movable inner tube can have a diameter of φ100mm and a length of 2.3m to 2.8m, and be made of non-ferrous aluminum tubing. Of course, the embodiments of the present invention do not limit the specific dimensions and materials of the loading arm body and the movable inner tube.

[0052] It should be further noted that the above-described embodiments of the present invention... Figure 1 This is a schematic diagram of the refueling arm in this invention, not a design drawing or actual product drawing. For ease of description of the refueling arm in this embodiment, the structures of the various components indicated in this schematic diagram are not actual structures; for example, the cover plate is flat, while the structure of the refueling arm in this invention is different. Figure 1 The diagram only shows the structure, position, and connection relationship of the cover plate. Those skilled in the art can design the above-mentioned refueling arm in the embodiments of the present invention in any way according to the contents recorded in the claims and specification, but without departing from the inventive concept of the present invention.

[0053] In this embodiment of the invention, when not in use, the cover plate closes to the opening at the bottom of the loading arm body to prevent residual oil from dripping into the environment and thus preventing environmental pollution. During use, a drive assembly extends the movable inner tube beyond the opening at the bottom of the loading arm body, allowing fluids such as oil to enter through the inlet and be injected into the tanker truck via the movable inner tube. After use, the drive assembly retracts the movable inner tube. During retraction, an oil scraper removes any remaining oil from the inner wall of the loading arm body, and then the cover plate is closed, preventing oil from dripping everywhere and protecting the environment.

[0054] The refueling arm provided in this embodiment of the invention has a simple structure and is easy to install. The length of the freely extendable inner tube effectively ensures the depth of the refueling arm submerged in the tank opening, improving the safety factor and preventing accidents. Furthermore, this refueling arm completely overcomes the problem of oil splashing and accidents caused by inconsistent platform heights at filling points in the past. Moreover, the design of the oil skimmer component avoids the possibility of oil dripping, reducing environmental pollution.

[0055] In an optional embodiment, refer to Figure 1 As shown, the above-mentioned oil cleaning assembly 14 may include: an oil scraper 141 and a first oil blocking component 142. The oil scraper 141 is nested and installed in the upper part of the movable inner tube 13. The first oil blocking component 142 is located in the lower part of the oil inlet 111 and is installed on the inner wall of the arm arm body 11. Under the drive of the drive assembly 15, the movable inner tube 13 can move through the first through hole (not shown in the figure) on the first oil blocking component 142 and extend out an opening.

[0056] It should be noted that the oil scraping component and the first oil blocking component in the embodiments of the present invention can be disc-shaped, with a through hole in the center, for example, a hole in the middle of the oil scraping component, to facilitate installation with the movable inner tube. When the movable inner tube extends or retracts, the oil scraping component also moves up and down with the movable inner tube to achieve the purpose of scraping away the oil remaining on the inner wall of the loading arm body. The first oil blocking component has a through hole in the center. Since it is installed on the inner wall of the loading arm body, the movable inner tube can move through the first through hole on the first oil blocking component when it extends or retracts, achieving the purpose of scraping away the oil stains remaining on the surface of the movable inner tube. At the same time, the first oil blocking component can limit the movable inner tube in the axial direction, playing the roles of scraping oil, straightening, and sealing.

[0057] The first oil-blocking component of the refueling arm described in this embodiment of the invention can block the oil stains scraped off the inner wall of the arm body by the oil scraping component and the oil stains scraped off the outer wall of the movable inner tube by the first oil-blocking component at the upper part of the first oil-blocking component, thus preventing the oil stains on the tube wall from dripping down in all directions.

[0058] Furthermore, in this embodiment of the invention, the first oil-blocking component is located below the oil inlet. When using the refueling arm, the lower end of the movable inner tube extends out of the arm body, and the upper part of the movable inner tube and the oil scraping component are limited by the first oil-blocking component, preventing them from detaching from the arm body. Preferably, the height difference between the top of the movable inner tube and the oil inlet is not less than 10 cm, so that the oil can pass smoothly through the refueling arm.

[0059] In another alternative embodiment, refer to Figure 1 As shown, the above-mentioned oil cleaning assembly may further include: a second oil blocking component 143, which is located below the first oil blocking component 142 and is installed on the inner wall of the loading arm body 11. The movable inner tube 13 is driven by the driving component 15 and can move through the second through hole (not shown in the figure) on the second oil blocking component 143 and extend out an opening. The first oil blocking component 142, the second oil blocking component 143 and the inner wall of the loading arm body 11 form a lubricating oil chamber 113. The loading arm body 11 is provided with an oil inlet 114 that communicates with the lubricating oil chamber 113.

[0060] In this embodiment of the invention, both the first and second oil-blocking components are installed on the inner wall of the loading arm body. Since their positions are fixed, they first provide axial support and limitation for the movable inner tube. Secondly, the first and second oil-blocking components, along with the inner wall of the loading arm body, form a cavity that can hold lubricating oil or other lubricants, facilitating lubrication of the outer wall of the movable inner tube. Lubricating oil is added through the oil inlet, and the tube wall is lubricated when the movable inner tube moves up and down.

[0061] In another optional embodiment, the aforementioned oil scraping component, the first oil blocking component, and the second oil blocking component can be made of metal or non-metal. If they are made of metal, it is preferable to provide a rubber ring at the part where the oil scraping component contacts the loading arm body, and to provide a rubber ring at the part where the first oil blocking component and the second oil blocking component contact the movable inner tube.

[0062] In another alternative embodiment, refer to Figure 1 As shown, the outer sides of the first oil-blocking component 142 and the second oil-blocking component 143 are provided with external threads, and the inner wall of the loading arm body 11 is provided with an internal thread matching the external thread. The first oil-blocking component 142 and the second oil-blocking component 143 are respectively threadedly connected to the loading arm body 11.

[0063] In this embodiment of the invention, the first oil-blocking component and the second oil-blocking component are respectively threadedly connected to the loading arm body. This connection method ensures stable connection and avoids the first oil-blocking component and the second oil-blocking component from shaking during the extension and retraction of the movable inner tube.

[0064] In another alternative embodiment, refer to Figure 1 As shown, the inner side of the oil scraping component 141 is provided with an internal thread, and the outer side of the movable inner tube 13 is provided with an external thread. The oil scraping component 141 and the movable inner tube 13 are threadedly connected. Similarly, in the embodiment of the present invention, the oil scraping component and the movable inner tube are connected by threads, so that when the movable inner tube extends or retracts, the oil scraping component moves up and down together, which plays the role of axial support for the movable inner tube and oil scraping.

[0065] In another alternative embodiment, refer to Figure 1 As shown, the oil loading arm 1 may further include: a first sealing ring assembly 16, which may include multiple sealing rings; an annular groove (not shown in the figure) is provided on the inner side of the first oil blocking component 142 and / or the second oil blocking component 143, and multiple sealing rings are located in the annular groove.

[0066] For example, you can refer to Figure 1 As shown, the first oil-blocking component is equipped with four layers of O-rings, and the second oil-blocking component is equipped with two layers of O-rings. When the movable inner tube extends or retracts, the O-rings on the first oil-blocking component can scrape off the oil stains on the outer wall of the movable inner tube, while the O-rings in the second oil-blocking component can effectively prevent the lubricating oil in the lubricating oil chamber from leaking out through the second through hole of the second oil-blocking component.

[0067] The first sealing ring assembly provided in this embodiment of the invention not only scrapes away oil stains on the outer wall of the movable inner tube, but also prevents the loss of lubricating oil in the lubrication chamber. Furthermore, it prevents static electricity from being generated through direct friction between the movable inner tube and the first and second oil-blocking components, thus avoiding damage caused by static electricity.

[0068] In another alternative embodiment, refer to Figure 1 As shown, the oil loading arm 1 may further include: a second sealing ring assembly 17; the second sealing ring assembly 17 includes a plurality of sealing rings; an annular groove (not shown in the figure) is provided on the outer side of the oil scraper 141, and the plurality of sealing rings are located in the annular groove.

[0069] The second sealing ring assembly described in this embodiment of the invention can not only scrape off the oil stains on the inner wall of the loading arm body, but also generate static electricity through direct friction between the oil scraping component and the loading arm body, thus avoiding disasters caused by static electricity.

[0070] It should be noted that the size of the sealing ring in the second sealing ring assembly described in the embodiments of the present invention is different from the size of the sealing ring in the first sealing ring assembly described above, and those skilled in the art should not have any ambiguity about this.

[0071] In another alternative embodiment, refer to Figure 1As shown, the oil loading arm 1 may further include: an annular washer 18; the annular washer 18 is located at the lower end face of the oil scraper 141; and / or, the annular washer 18 is located at the upper end face of the first oil blocking member 142.

[0072] In the embodiments of the present invention, the meaning of "limited to" can be fixed installation, or it can be pasted, detachable connection, etc. For example, an annular groove is opened on the lower end face of the oil scraping component, and the annular washer is limited to the annular groove; or, for example, an annular groove is opened on the upper end face of the first oil blocking component, and the annular washer is limited to the annular groove.

[0073] In the embodiments of the present invention, the movable inner tube extends and retracts under the drive of the drive assembly. When it extends out of the loading arm body, since most loading arms, inner tubes, oil blocking components and other oil guide tubes are made of metal, the inventors have designed an annular washer to effectively buffer the collision and prevent the generation of static electricity in order to avoid the movable inner tube made of metal colliding with the first oil blocking component.

[0074] In another alternative embodiment, refer to Figure 1 As shown, the above-mentioned oil loading arm 1 may further include: a ground wire 19 connected to the outer wall of the loading arm body 11.

[0075] Since most of the components of the refueling arm in this embodiment are made of metal, and the static electricity generated during the refueling and oil guiding process needs to be conducted away in a timely manner to avoid danger, this embodiment of the invention also includes a ground wire connected to the outer wall of the arm body. The connection position of the ground wire to the outer wall of the arm body is not specifically limited.

[0076] In another alternative embodiment, refer to Figure 1 As shown, the drive assembly 15 may include: a main pulley 151, a coiled reel 152, and a pulley rope 153; the main pulley 151 is installed at the top of the loading arm body 11, the coiled reel 152 is installed on the outer wall of the loading arm body 11, and the pulley rope 153 abuts against the outside of the main pulley 151, with one end connected to the coiled reel 152 and the other end passing through the loading arm body 11 and connected to the movable inner tube 13.

[0077] The specific structure of the drive component provided in this embodiment of the invention can drive the movable inner tube to extend and retract. Specifically, after the tanker is in place, the bottom cover is opened, the locking block on the coil wheel is lifted, the coil wheel handle is turned counterclockwise, the pulley rope (steel wire rope) extends, and the movable inner tube descends. When the movable inner tube descends to the top of the first oil blocking component, the oil inlet valve is opened to start loading oil. After loading oil is completed, the coil wheel handle is turned clockwise, the steel wire rope shortens, and the movable inner tube rises to the top of the loading arm body. The locking block of the coil wheel is pressed down to lock the coil wheel, and the bottom cover is closed.

[0078] Specifically, the reel is equipped with bearings, ratchet, and locking blocks, which can lock the reel to the locking blocks to prevent the moving inner tube from slipping off.

[0079] In another alternative embodiment, refer to Figure 1 As shown, the aforementioned drive assembly 15 may further include an auxiliary pulley 154, which is mounted on the outer wall of the loading arm body 11, located between the main pulley 151 and the coiling reel 152, with the pulley rope 153 abutting against the outer side of the auxiliary pulley 154. In this embodiment, the auxiliary pulley can limit and guide the setting of the pulley rope, and at the same time, abutting against the pulley rope, it plays a supporting role.

[0080] In the embodiments of the present invention, the ground wire, main pulley, auxiliary pulley, and coil wheel are all made of copper, which can promptly dissipate static electricity generated during the oil filling process.

[0081] The loading arm body is welded to the oil inlet. The movable inner tube inside the loading arm body slides up and down driven by the reel. When the oil scraping component fixed on the upper part of the movable inner tube falls on the first oil blocking component, the oil loading operation can begin. After the oil loading is completed, the movable inner tube can be moved to the top of the loading arm body by hand-cranking the reel.

[0082] In another alternative embodiment, refer to Figure 1 As shown, the above-mentioned oil loading arm may also include: a probe (not shown in the figure) for detecting the liquid level, which can adhere to the outer wall of the movable inner tube when the movable inner tube is extended.

[0083] Because existing oil loading arms all have one end inserted into the filling port, operators cannot see changes in the oil level during the sealing and filling process, which can easily lead to excessively high oil levels. The inventors have solved this problem by attaching a probe to the outer wall of the movable inner tube, which allows for timely detection of changes in the oil level inside the tanker.

[0084] Based on the same inventive concept, this embodiment of the invention also provides an application of the oil loading arm as described above in an oil loading system.

[0085] Based on the same inventive concept, this embodiment of the invention also provides an oil storage tank, which may include the above-mentioned oil loading arm; the oil outlet pipe of the oil storage tank is connected to the oil inlet pipe of the loading arm body.

[0086] Based on the same inventive concept, an oil loading system is also provided in this embodiment of the invention, referring to... Figure 2 The system shown may include: an oil storage tank 2, an oil tanker 3, and the aforementioned loading arm 1;

[0087] The oil outlet pipe of oil storage tank 2 is connected to the oil inlet pipe of the loading arm body;

[0088] An opening extends from the movable inner tube of the loading arm 1, which can be located at the filling port of the tanker truck 3.

[0089] In this embodiment of the invention, the oil outlet pipe and the oil inlet pipe are welded together, eliminating the need for personnel to repeatedly disassemble and reassemble, thus reducing the labor intensity of employees and improving production efficiency.

[0090] In an optional embodiment, reference is also made to Figure 2 As shown, the system may also include: a main controller 4; the main controller 4 is connected to the probe of the oil loading arm 1, and is used to receive the liquid level detected by the probe and issue corresponding prompt information.

[0091] The application of the above-mentioned refueling arm, the relevant description of the oil storage tank and the oil filling system in the embodiments of the present invention, as well as the beneficial effects, can be referred to the relevant content of the above-mentioned refueling arm. The embodiments of the present invention will not be described in detail here.

[0092] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. This disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of the invention fall within the scope of the claims of the invention and their equivalents, the invention is also intended to include these modifications and variations.

Claims

1. An oil loading arm, characterized in that, include: The loading arm body, cover plate, movable inner tube, oil cleaning assembly, and drive assembly; The loading arm body is cylindrical, and the side wall of the loading arm body is provided with an oil inlet for connecting an external oil pipe. The bottom is provided with an opening, and the cover plate is connected to the bottom of the loading arm body to cover the opening. The movable inner tube and the oil cleaning assembly are located in the hollow structure of the loading arm body, the drive assembly is installed on the outer wall of the loading arm body, and the drive assembly is connected to the movable inner tube; The oil cleaning assembly includes: an oil scraper, a first oil blocking component, and a second oil blocking component. The oil scraper is nested in the upper part of the movable inner tube. Under the drive of the drive assembly, the movable inner tube and the oil scraper extend and retract at the opening, and the oil scraper slides within the loading arm body. The first oil blocking component is located below the oil inlet and is installed on the inner wall of the loading arm body. Under the drive of the drive assembly, the movable inner tube movably passes through a first through hole on the first oil blocking component and extends out of the opening. The second oil blocking component is located below the first oil blocking component and is installed on the inner wall of the loading arm body. Under the drive of the drive assembly, the movable inner tube movably passes through a second through hole on the second oil blocking component and extends out of the opening. The first oil blocking component, the second oil blocking component, and the inner wall of the loading arm body form a lubricating oil chamber. The loading arm body is provided with an oil inlet communicating with the lubricating oil chamber.

2. The oil loading arm according to claim 1, characterized in that, The inner side of the oil scraping component is provided with an internal thread, and the outer side of the movable inner tube is provided with an external thread. The oil scraping component and the movable inner tube are threadedly connected.

3. The oil loading arm according to claim 1, characterized in that, The first oil-blocking component and the second oil-blocking component are provided with external threads on their outer sides, and the inner wall of the loading arm body is provided with internal threads that match the external threads. The first oil-blocking component and the second oil-blocking component are respectively threadedly connected to the loading arm body.

4. The oil loading arm according to claim 1, characterized in that, The oil loading arm further includes: a first sealing ring assembly, which includes a plurality of sealing rings; The inner side of the first oil-blocking component and / or the second oil-blocking component is provided with an annular groove, and a plurality of the sealing rings are located in the annular groove.

5. The oil loading arm according to any one of claims 1 to 4, characterized in that, The oil loading arm further includes: a second sealing ring assembly; the second sealing ring assembly includes multiple sealing rings; The outer side of the oil scraping component has an annular groove, and multiple sealing rings are located in the annular groove.

6. The oil loading arm according to any one of claims 1 to 4, characterized in that, The oil loading arm also includes: an annular washer; The annular washer is located on the lower end face of the oil scraper component; And / or, The annular gasket is located on the upper end face of the first oil-blocking component.

7. The oil loading arm according to any one of claims 1 to 4, characterized in that, The oil loading arm also includes a ground wire connected to the outer wall of the loading arm body.

8. The oil loading arm according to any one of claims 1 to 4, characterized in that, The drive assembly includes: a main pulley, a coiled pulley, and a pulley rope; The main pulley is installed at the top of the loading arm body, the coiling reel is installed on the outer wall of the loading arm body, the pulley rope abuts against the outside of the main pulley, one end is connected to the coiling reel, and the other end passes through the loading arm body and is connected to the movable inner tube.

9. The oil loading arm according to claim 8, characterized in that, The drive assembly further includes an auxiliary pulley, which is installed on the outer wall of the loading arm body and located between the main pulley and the coiling pulley, with the pulley rope abutting against the outside of the auxiliary pulley.

10. The oil loading arm according to any one of claims 1 to 4, characterized in that, The oil loading arm also includes a probe for detecting the liquid level, which can adhere to the outer wall of the movable inner tube when the inner tube is extended.

11. The application of an oil loading arm as described in any one of claims 1 to 10 in an oil loading system.

12. An oil storage tank, characterized in that, It includes an oil loading arm as described in any one of claims 1 to 10; the oil outlet pipe of the oil storage tank is connected to the oil inlet pipe of the loading arm body.

13. An oil filling system, characterized in that, Oil storage tanks, oil tank trucks, and loading arms as described in any one of claims 1 to 10; The oil outlet pipe of the oil storage tank is connected to the oil inlet pipe of the loading arm body; The movable inner tube of the loading arm extends out of the opening and can be located at the filling port of the tanker truck.

14. The system according to claim 13, characterized in that, Also includes: Main controller; the main controller is connected to the probe of the oil loading arm, and is used to receive the liquid level detected by the probe and issue corresponding prompt information.

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