Oil product conveying system

Abstract

The utility model provides an oil product conveying system. The oil product conveying system comprises an oil product conveying pipeline; the refueling bolt is connected with the oil product conveying pipeline; the first shaft sleeves the periphery of the refueling bolt and is fixedly connected with the refueling bolt; the second shaft sleeves the periphery of the first shaft, and the outer diameter of the first shaft is smaller than the inner diameter of the second shaft. On the basis of a first shaft fixedly connected with a refueling bolt, a second shaft arranged on the periphery of the first shaft in a sleeving mode is arranged, and a gap is reserved between the first shaft and the second shaft. The second shaft is in direct contact with the external geological environment, and the influence of the external geological environment acts on the second shaft instead of directly acting on the first shaft to affect the refueling plug. Through the arrangement, the non-deformability of the refueling bolt area can be improved, and therefore the overall structural stability of the oil product conveying system is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil transportation technology, and in particular to an oil transportation system. Background Technology

[0002] Oil transportation systems are exposed to complex geological environments for extended periods. Uneven foundation settlement and pavement slab displacement can easily lead to deformation, weld cracking, and even fuel leakage due to shear forces, threatening operational safety. In oil transportation systems, refueling plugs are typically used to connect the oil pipeline to the oil-using equipment. In related technologies, the refueling plugs are installed within a single-layer wellbore, with the wellbore and the plug fixedly connected. When the wellbore is affected by geological conditions, it directly causes the refueling plug to shift or tilt, creating safety risks. Therefore, the structural stability of the oil transportation system needs improvement. Utility Model Content

[0003] This application provides an oil transportation system to improve the structural stability of the oil transportation system.

[0004] This application provides an oil transportation system, including: an oil transportation pipeline; a refueling plug connected to the oil transportation pipeline; a first wellbore sleeved around the refueling plug and fixedly connected to the refueling plug; and a second wellbore sleeved around the first wellbore, wherein the outer diameter of the first wellbore is smaller than the inner diameter of the second wellbore.

[0005] Optionally, the oil filling plug, the first wellbore, and the second wellbore are arranged coaxially.

[0006] Optionally, the oil delivery system further includes: a rubber ring, which surrounds the outer wall of the first wellbore and is sealed to the top of the outer wall of the first wellbore and the inner wall of the second wellbore; and an annular tray, which is coaxially arranged with the first and second wellbores and is sealed to the outer wall of the first wellbore and the bottom of the second wellbore.

[0007] Optionally, both the first and second wellbore are arranged perpendicular to the horizontal plane; and the top of the second wellbore is higher than the top of the first wellbore; the oil transportation system also includes: a wellbore cover, which is arranged on the top of the second wellbore, and the wellbore cover can be opened or closed in a controlled manner.

[0008] Optionally, the oil delivery system further includes: a wellbore protective cover covering at least a portion of the outer surface of the second wellbore; and a wellbore reinforcing plate fixedly connected between the outer wall of the second wellbore and the inner surface of the wellbore protective cover, wherein the wellbore reinforcing plate is perpendicular to the extension direction of the second wellbore.

[0009] Optionally, the oil delivery pipeline includes: a first pipeline connected to a refueling plug; and a second pipeline connected to the first pipeline, wherein the extension direction of the second pipeline is perpendicular to the extension direction of the first pipeline; wherein the first pipeline and the second pipeline are welded together via a branch pipe platform.

[0010] Optionally, the oil delivery system also includes: a sensor for monitoring the pipeline status of the oil delivery pipeline; and a fixing clamp for fixing the sensor to the oil delivery pipeline.

[0011] Optionally, the oil delivery system also includes: mounting accessories, which are fixedly connected to the sensor, and fixing clamps that are fixedly connected to the mounting accessories and the oil delivery pipeline.

[0012] Optionally, the sensor includes a first sensor; the mounting accessories include a mounting plate, on which the first sensor is fixedly mounted, and a fixing clamp is used to fix the mounting plate to the oil conveying pipeline.

[0013] Optionally, the sensor includes a second sensor; the mounting accessories include a mounting ring, in which the second sensor is fixed, and a fixing clamp securely connects the mounting ring to the oil delivery pipeline.

[0014] The oil delivery system provided in this application, based on a first wellbore fixedly connected to the refueling plug, includes a second wellbore sleeved around the perimeter of the first wellbore, with a gap between the two. The second wellbore is in direct contact with the external geological environment; the influence of the external geological environment acts on the second wellbore but not directly on the first wellbore, thus affecting the refueling plug. This design improves the deformation resistance of the refueling plug area, thereby enhancing the overall structural stability of the oil delivery system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an oil delivery system provided in one embodiment of this application;

[0016] Figure 2 This is a partial structural schematic diagram of an oil delivery system provided in another embodiment of this application;

[0017] Figure 3 This is a schematic diagram of sensor installation provided in one embodiment of this application;

[0018] Figure 4 This is a schematic diagram of sensor installation provided in another embodiment of this application;

[0019] Figure 5 This is a schematic diagram of sensor installation provided in another embodiment of this application;

[0020] Figure 6 This is a schematic diagram of sensor installation provided in another embodiment of this application.

[0021] Figure Labels

[0022] 10: Oil transportation pipeline; 11: First pipeline; 12: Second pipeline; 102: Branch pipe platform; 20: Fuel filler plug; 201: Intermediate flange; 202: Bottom flange; 203: Fuel filler plug isolation valve; 204: Fuel filler plug lifting valve pull rod; 31: First wellbore; 32: Second wellbore; 320: Wellbore cover; 321: Wellbore protective cover; 322: Wellbore reinforcing plate; 310: Annular tray; 411: Strain sensor; 412 413: Static level; 421: Earth pressure sensor; 511: Inclinometer; 512: First fixing clamp; 513: Second fixing clamp; 521: Third fixing clamp; 611: First mounting plate; 612: Second mounting plate; 613: Third mounting plate; 621: First mounting ring; 710: Protective cover; 811: First communication cable; 812: Second communication cable; 813: Third communication cable. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings.

[0024] Combination Figure 1 and Figure 2 As shown in the figure, this application provides an oil transportation system, including an oil transportation pipeline 10, a refueling plug 20, a first wellbore 31, and a second wellbore 32.

[0025] The refueling plug 20 is connected to the oil delivery pipeline 10. The first wellbore 31 is fitted around the refueling plug 20 and is fixedly connected to it. The second wellbore 32 is fitted around the first wellbore 31, and the outer diameter of the first wellbore 31 is smaller than the inner diameter of the second wellbore 32.

[0026] The oil delivery system provided in this application embodiment includes a second wellbore 32 fitted around the periphery of the first wellbore 31, which is fixedly connected to the refueling plug 20, with a gap between the first and second wellbore 31. The second wellbore 32 is in direct contact with the external geological environment, and the influence of the external geological environment acts on the second wellbore 32 without directly affecting the first wellbore 31 and thus the refueling plug 20. This arrangement helps to improve the deformation resistance of the refueling plug 20 area, thereby improving the overall structural stability of the oil delivery system. The refueling plug 20, as an intermediate device connecting the oil delivery pipeline 10 and external oil-using equipment, is equipped with connecting fittings including an intermediate flange 201 and a bottom flange 202, and valves including a refueling plug isolation valve 203. The intermediate flange 201 provides connection and sealing to ensure the stability of the oil delivery pipeline 10. The bottom flange 202 provides fixed support for the refueling plug 20. The refueling plug isolation valve 203 controls the oil flow to prevent leakage and accidents. Furthermore, in some embodiments, the oil delivery system also includes a filler valve lifter lever 204. This lifter lever 204 is connected to the valve in the filler valve 20 and is used to control the opening or closing of the valve. During implementation, valve control is achieved by operating the filler valve lifter lever 204 to open or close the valve.

[0027] In some embodiments, the refueling plug 20, the first wellbore 31, and the second wellbore 32 are coaxially arranged. This helps to ensure the uniformity of the gap distribution between the outer wall of the first wellbore 31 and the inner wall of the second wellbore 32, thereby preventing deformation at various angles and improving the structural stability of the overall oil transportation system.

[0028] In some embodiments, the difference between the outer diameter of the first shaft 31 and the inner diameter of the second shaft 32 is 6 cm to 14 cm. This allows for a gap of 3 cm to 7 cm between the outer wall of the first shaft 31 and the inner wall of the second shaft 32. Further, in some embodiments, the difference between the outer diameter of the first shaft 31 and the inner diameter of the second shaft 32 is 10 cm. This allows for a gap of 5 cm between the outer wall of the first shaft 31 and the inner wall of the second shaft 32. This provides sufficient space for the deformation of the second shaft 32 to prevent the second shaft 32 from directly causing deformation of the first shaft 31, while also avoiding unnecessary space occupation and material consumption.

[0029] Continue to combine Figure 2As shown, in some embodiments, the oil delivery system further includes a rubber ring and an annular tray 310. The rubber ring surrounds the outer wall of the first wellbore 31 and is sealed to the top of the outer wall of the first wellbore 31 and the inner wall of the second wellbore 32. The annular tray 310 is coaxially arranged with the first wellbore 31 and the second wellbore 32 and is sealed to the outer wall of the first wellbore 31 and the bottom of the second wellbore 32.

[0030] The rubber ring is positioned between the outer wall of the first wellbore 31 and the top area of ​​the inner wall of the second wellbore 32, serving to isolate the external environment from the gap between the outer wall of the first wellbore 31 and the inner wall of the second wellbore 32. This prevents oil from entering the second wellbore 32 from the first wellbore 31, thus preventing oil from seeping into the ground through the second wellbore 32 and causing environmental pollution. The annular tray 310 is coaxially arranged with the first wellbore 31 and the second wellbore 32. Using the annular tray 310 as a reference, the second wellbore 32 can be accurately positioned, thereby achieving alignment, improving the efficiency of the installation process, and ensuring the accuracy of the position of the first wellbore 31 and the second wellbore 32 after installation, preventing the second wellbore 32 from shifting position. Furthermore, during use after installation, the annular tray 310 remains connected to the outer wall of the first wellbore 31 and the bottom end of the second wellbore 32. On one hand, it serves to connect and fix the first wellbore 31 and the second wellbore 32; on the other hand, it seals the bottom of the gap between the first wellbore 31 and the second wellbore 32, effectively preventing external impurities such as soil and rocks from entering the gap and damaging the first wellbore 31. It also further mitigates the environmental pollution risk caused by oil entering the external environment. During implementation, the outer edge of the annular tray 310 often extends beyond the bottom outer wall of the second wellbore 32, thus better ensuring accurate positioning of the second wellbore 32 and a good seal between the first wellbore 31 and the second wellbore 32.

[0031] In some embodiments, both the first wellbore 31 and the second wellbore 32 are arranged perpendicular to the horizontal plane; and the top of the second wellbore 32 is higher than the top of the first wellbore 31. The oil transportation system also includes a wellbore cover 320, which is disposed on the top of the second wellbore 32 and can be opened or closed in a controlled manner. In this way, during non-use, closing the wellbore cover 320 can further isolate the interior of the second wellbore 32 from the external environment, avoiding impact on the internal first wellbore 31 and the refueling plug 20, thus facilitating the protection of the first wellbore 31 and the refueling plug 20. Furthermore, in at least some embodiments, the top of the second wellbore 32 is provided with a cover groove that matches the wellbore cover 320, which helps to prevent the wellbore cover 320 from shifting or tilting, thereby improving the stability of the wellbore cover 320.

[0032] In some embodiments, the oil delivery system further includes a wellbore protective cover 321 and a wellbore reinforcing plate 322. The wellbore protective cover 321 covers at least a portion of the outer surface of the second wellbore 32; the wellbore reinforcing plate 322 is fixedly connected between the outer wall of the second wellbore 32 and the inner surface of the wellbore protective cover 321, and the wellbore reinforcing plate 322 is perpendicular to the extending direction of the second wellbore 32. This reinforces the second wellbore 32, thereby enhancing its structural stability. In at least some embodiments, the wellbore reinforcing plate 322 and the second wellbore 32 are an integral structure to ensure the stability of the connection between them. In some embodiments, the wellbore reinforcing plate 322 is arranged around the outer wall of the second wellbore 32 to ensure the structural stability of the second wellbore 32 at various angles.

[0033] Continue to combine Figure 1 As shown, in some embodiments, the oil delivery pipeline 10 includes a first pipeline 11 and a second pipeline 12. The first pipeline 11 is connected to the refueling nozzle 20. The second pipeline 12 communicates with the first pipeline 11, and the extension direction of the second pipeline 12 is perpendicular to the extension direction of the first pipeline 11. The first pipeline 11 and the second pipeline 12 are welded together via a branch pipe platform 102. Specifically, the second pipeline 12 is horizontally positioned and serves as the main pipeline of the oil delivery system, transporting oil. The first pipeline 11 is vertically positioned and serves as a riser, through which the oil in the main pipeline is transported to the refueling nozzle 20, and then to external oil-using equipment. The branch pipe platform 102 is welded to both the first pipeline 11 and the second pipeline 12. Compared to direct welding between the first pipeline 11 and the second pipeline 12, adding a branch pipe platform 102 for welding improves the welding strength between the first pipeline 11 and the second pipeline 12, increasing the stability of the oil delivery system. In at least some embodiments, the outer surface of the branch pipe platform 102 is parabolic. To ensure sufficient contact between the branch pipe platform 102 and the first pipe 11 and the second pipe 12, the weld stability is improved. Furthermore, in cases where the oil transport pipeline 10 includes other pipes besides the first pipe 11 and the second pipe 12 (i.e., the oil transport pipeline 10 comprises multiple pipes with more than two pipes), the pipes are welded together via the branch pipe platform 102. This improves the stability of the internal connections within the oil transport pipeline 10, thereby enhancing the overall structural stability of the oil transport system.

[0034] Combination Figures 3 to 6As shown in the illustration, this application provides an oil transportation system, which also includes a sensor and a fixing clamp. The sensor is used to monitor the pipeline status of the oil transportation pipeline 10, and the fixing clamp is used to fix the sensor to the oil transportation pipeline 10. This enables real-time monitoring of the pipeline status of the oil transportation pipeline 10, facilitating the assessment of the pipeline's safety status. Compared to ordinary transportation pipelines, oil transportation systems have higher safety requirements. The surface of the oil transportation pipeline 10 typically has anti-corrosion and insulation measures. If the sensor is fixed to the oil transportation pipeline 10 by welding or other methods, the anti-corrosion and insulation measures on the surface of the oil transportation pipeline 10 will be damaged, affecting the inherent protective potential of the oil transportation pipeline 10. This can lead to corrosion of the leaking oil transportation pipeline 10 under the influence of interference current, thus severely impacting the service life of the oil transportation pipeline 10. In this application embodiment, the fixing clamp is used to achieve relative fixation between the sensor and the oil transportation pipeline 10, which helps reduce the risk of damage to the outer surface of the oil transportation pipeline 10 caused by sensor installation, thereby ensuring the safety and service life of the oil transportation pipeline 10. Meanwhile, securing the sensor with a clamp makes it easier to repair, replace, or move the sensor, thus reducing post-installation maintenance costs. In at least some embodiments, the clamp is made of stainless steel. This provides corrosion resistance, thereby improving the stability of the sensor's fixation.

[0035] Specifically, in some embodiments, the fixing clamp includes a clamp body and fastening screws connected to the clamp body. The fastening screws are used to adjust the length of the clamp body to ensure a tight connection between the sensor and the oil delivery pipeline 10. During implementation, after determining the installation position of the clamp body, the length of the clamp body is adjusted by adjusting the fastening screws until the sensor and the oil delivery pipeline 10 are in close contact, thus fixing the sensor.

[0036] In some embodiments, the oil delivery system further includes mounting accessories. The mounting accessories are fixedly connected to the sensor, and fixing clamps are used to fix the mounting accessories to the oil delivery pipeline 10. Considering that directly fixing the oil delivery pipeline 10 and the sensor with fixing clamps during implementation may result in insecure fixing due to structural incompatibility, mounting accessories are added to fix the sensor. Using mounting accessories to install the sensor and the oil delivery pipeline 10 helps ensure the stability of the sensor installation. In some embodiments, the mounting accessories include a protective cover 710, which covers at least a portion of the sensor to avoid unnecessary direct contact between the sensor and the external environment, thereby helping to prevent sensor damage. It should be noted that some sensors require direct contact with the external environment to function; for such sensors, the protective cover 710 is not provided or its setting range is adaptively adjusted to avoid affecting the sensor's functionality. In some embodiments, the mounting accessories are made of metal. More specifically, in some embodiments, the mounting accessories are made of stainless steel or iron. This helps ensure the durability of the mounting accessories.

[0037] Combination Figures 3 to 5 As shown, in some embodiments, the sensor includes a first sensor. The mounting accessories include a mounting plate, the first sensor is fixedly mounted on the mounting plate, and a fixing clamp is fixedly connected to the oil delivery pipeline 10. Thus, the sensor can be fixed simply by connecting the mounting plate and the oil delivery pipeline 10 with the fixing clamp, which helps ensure the stability of the sensor installation. To achieve the fixing effect, after the first sensor is fixedly connected to the mounting plate, at least one end of the mounting plate extends beyond the projection range of the first sensor on the oil delivery pipeline 10 along its extension direction. The fixing clamp is fixedly connected to this part of the mounting plate and the oil delivery pipeline 10, thus fixing the first sensor. In at least some embodiments, after the first sensor is fixedly connected to the mounting plate, both ends of the mounting plate extend beyond the projection range of the first sensor on the oil delivery pipeline 10 along its extension direction. At least two fixing clamps are provided, respectively fixing the two ends of the mounting plate and the oil delivery pipeline 10. This further helps to ensure the stability of the first sensor installation.

[0038] Combination Figure 3As shown, in some embodiments, the first sensor includes a strain sensor 411. The strain sensor 411 measures the deformation and strain on the surface of the oil delivery pipeline 10 caused by factors such as pressure and temperature changes, and is used to assess the stress condition of the pipeline. The strain sensor 411 is fixedly connected to the first mounting plate 611 by means of bonding, welding, or mechanical structure fixation. A first fixing clamp 511 fixes the first mounting plate 611, to which the strain sensor 411 is fixedly connected, to a predetermined position on the oil delivery pipeline 10. The strain sensor 411 is also connected to a first communication cable 811, which connects to an external port for data transmission. In some embodiments, the strain sensor 411 is housed within a protective cover 710 to protect its structure by isolating it from the external environment.

[0039] Combination Figure 4 As shown, in some embodiments, the first sensor includes a hydrostatic level 412. The hydrostatic level 412 is used to measure the longitudinal or lateral displacement of the oil delivery pipeline 10 to ensure that the oil delivery pipeline 10 is in a state that meets the set requirements during installation and operation. The hydrostatic level 412 is fixedly connected to the second mounting plate 612 by means of bonding, welding, mechanical structure fixing, etc., and the second fixing clamp 512 fixes the second mounting plate 612, which is fixedly connected to the hydrostatic level 412, to the set position of the oil delivery pipeline 10.

[0040] Combination Figure 5 As shown, in some embodiments, the first sensor includes a soil pressure sensor 413. The soil pressure sensor 413 measures the pressure exerted on the pipeline by the surrounding soil, assessing the impact of the external environment on the pipeline. The soil pressure sensor 413 is fixedly connected to the third mounting plate 613 by means of bonding, welding, or mechanical fixation. A third fixing clamp 513 secures the third mounting plate 613, to which the soil pressure sensor 413 is fixed, to a predetermined position on the oil transport pipeline 10. For example, the soil pressure sensor 413 can be bonded to a 3mm thick iron plate and then fixed to the oil transport pipeline 10 using a stainless steel third fixing clamp 513. The soil pressure sensor 413 is also connected to a second communication cable 812, which connects to an external port for data transmission.

[0041] Combination Figure 6As shown, in some embodiments, the sensor includes a second sensor. The mounting fitting includes a mounting ring, in which the second sensor is fixed, and a fixing clamp securely connects the mounting ring to the oil delivery pipeline 10. The connection between the mounting ring and the oil delivery pipeline 10 ensures stable fixation between the second sensor and the pipeline. This prevents the fixing clamp from directly contacting the second sensor, thus avoiding potential damage. Specifically, when the second sensor's diameter is too small, direct fixation with the fixing clamp could lead to instability; mounting with the mounting ring improves installation stability. During implementation, one or more mounting rings and fixing clamps can be used to meet different length or stability requirements.

[0042] Continue to combine Figure 6 As shown, in some embodiments, the second sensor includes an inclinometer 421. When the oil transport pipeline 10 includes the aforementioned first pipeline 11 and second pipeline 12, the inclinometer 421 is disposed on the second pipeline 12. The inclinometer 421 is used to detect whether the second pipeline 12 (oil transport pipeline 10) is tilted or bent, to ensure that the second pipeline 12 (oil transport pipeline 10) maintains its normal geometry. The inclinometer 421 is fixedly connected to the first mounting ring 621 by means of bonding, welding, mechanical structure fixing, etc., and the fourth fixing clamp 521 fixes the first mounting ring 621, which is fixedly connected to the inclinometer 421, to a set position on the second pipeline 12 (oil transport pipeline 10).

[0043] The inclinometer 421 is also connected to a third communication cable 813, which connects to an external port to achieve data transmission.

[0044] It should be noted that the first and second sensors are used only to illustrate different mounting accessory settings and do not represent two completely different types of sensors. In implementation, some sensors may be fixed using either a mounting plate or a retaining ring. Furthermore, the strain sensor 411, hydrostatic level 412, earth pressure sensor 413, and inclinometer 421 mentioned here are merely examples and do not represent all sensor types included in the first and second sensors, nor do they imply that the strain sensor 411, hydrostatic level 412, and earth pressure sensor 413 can only be fixed using a mounting plate, or that the inclinometer 421 can only be fixed using a retaining ring.

[0045] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. An oil transportation system, characterized in that, include: Oil pipelines; A fuel filler valve connects to the fuel delivery pipeline. The first wellbore is fitted around the oil filling plug and is fixedly connected to the oil filling plug; The second well casing is fitted around the first well casing, and the outer diameter of the first well casing is smaller than the inner diameter of the second well casing.

2. The oil conveying system according to claim 1, characterized in that, The refueling plug, the first wellbore, and the second wellbore are arranged coaxially.

3. The oil conveying system according to claim 1, characterized in that, Also includes: A rubber ring is provided around the outer wall of the first well shaft and is sealed to the top of the outer wall of the first well shaft and the inner wall of the second well shaft; An annular tray is coaxially arranged with the first well shaft and the second well shaft, and is sealed to the outer wall of the first well shaft and the bottom end of the second well shaft.

4. The oil conveying system according to claim 1, characterized in that, Both the first and second well shafts are arranged perpendicular to the horizontal plane; and the top of the second well shaft is higher than the top of the first well shaft. The oil delivery system also includes: A manhole cover is disposed on the top of the second manhole, and the manhole cover can be opened or closed in a controlled manner.

5. The oil conveying system according to claim 1, characterized in that, Also includes: A well casing protective cover covers at least a portion of the outer surface of the second well casing; A wellbore reinforcing plate is fixedly connected between the outer wall of the second wellbore and the inner surface of the wellbore protective cover, and the wellbore reinforcing plate is perpendicular to the extension direction of the second wellbore.

6. The oil conveying system according to claim 1, characterized in that, The oil transport pipeline includes: The first pipe is connected to the fuel filler plug; The second pipe is connected to the first pipe, and the extension direction of the second pipe is perpendicular to the extension direction of the first pipe. The first pipe and the second pipe are welded together via a branch pipe platform.

7. The oil conveying system according to claim 1, characterized in that, Also includes: Sensors are used to monitor the condition of the oil delivery pipeline; A fixing clamp is used to securely connect the sensor to the oil delivery pipeline.

8. The oil conveying system according to claim 7, characterized in that, Also includes: The mounting accessories are fixedly connected to the sensor, and the fixing clamps are fixedly connected to the mounting accessories and the oil conveying pipeline.

9. The oil conveying system according to claim 8, characterized in that, The sensor includes a first sensor; The installation accessories include: Mounting plate, the first sensor is fixedly mounted on the mounting plate, and the fixing clamp is fixedly connected to the mounting plate and the oil conveying pipeline.

10. The oil conveying system according to claim 8, characterized in that, The sensor includes a second sensor; The installation accessories include: The second sensor is fixed inside the mounting ring, and the fixing clamp is fixedly connected to the mounting ring and the oil conveying pipeline.

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