Petroleum moisture detection device

Abstract

The utility model discloses a petroleum moisture detection device, and relates to the technical field of petroleum analysis. The first mounting pipe is arranged on the adapter pipe; the sealing block is connected with the inner wall of the first mounting pipe, an inserting hole is formed in the sealing block, and a first sealing ring is arranged on the inner wall of the inserting hole; the moisture detector comprises a displayer, an inserting rod and a sensor, the inserting rod is arranged in the inserting hole in a penetrating mode and abuts against the first sealing ring, and the lower end of the inserting rod extends out of the lower end of the first mounting pipe so that the sensor can detect the moisture content of petroleum in the switching pipe; and the sealing assembly is used for ascending and sealing the lower end of the first mounting pipe after the lower end of the inserting rod extends into the first mounting pipe. According to the disassembly mode of the moisture detector in the petroleum moisture detection device, the step of pressure relief of the conveying pipeline is omitted, and the maintenance convenience of the petroleum moisture detection device is improved.

Description

Technical Field

[0001] This utility model relates to the field of petroleum analysis technology, and in particular to a petroleum moisture detection device. Background Technology

[0002] The water content of crude oil is one of the important indicators for measuring oil quality. A lower water content usually means that the crude oil is of better quality and contains relatively fewer impurities. A petroleum moisture detection device is a device used to measure the water content in petroleum. It is typically installed in the pipelines used to transport petroleum, allowing for real-time and uninterrupted monitoring of the moisture content of the flowing oil in the pipeline. This ensures that personnel can obtain timely information on the dynamic changes in the water content of the petroleum.

[0003] Petroleum may contain various impurities. During long-term use of petroleum moisture detection devices, these impurities can adhere to the detection end of the device, affecting its detection accuracy. Therefore, it is essential to periodically remove the petroleum moisture detection device from the pipeline for maintenance. In existing technologies, the pipeline is typically under high pressure. Therefore, before disassembling the petroleum moisture detection device, the pipeline needs to be depressurized to prevent oil splashing during disassembly. Because the depressurization process for the pipeline is cumbersome, maintenance personnel need to spend a significant amount of time, thus hindering the ease of maintenance of the petroleum moisture detection device. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a petroleum moisture detection device, which improves the ease of maintenance of petroleum moisture detection devices.

[0005] The petroleum moisture detection device according to an embodiment of the present invention includes a transfer pipe, a first mounting pipe, a sealing block, a moisture detector, and a sealing assembly.

[0006] The adapter pipe is used to connect with the delivery pipeline so that oil in the delivery pipeline can flow into the adapter pipe; the first mounting pipe is parallel to the vertical direction and is disposed on the adapter pipe, with its lower end extending into the adapter pipe; the sealing block is disposed inside the first mounting pipe and is connected to the inner wall of the first mounting pipe, and the sealing block has an insertion hole coaxial with the first mounting pipe, with a first sealing ring disposed on the inner wall of the insertion hole; the moisture detector includes a display, an insertion rod, and a sensor, the display being connected to the upper end of the insertion rod, and the sensor being disposed on... The display is detachably connected to the upper end of the first mounting tube at the lower end of the insertion rod. The insertion rod passes through the insertion hole and abuts against the first sealing ring. The first sealing ring is used to seal the gap between the insertion rod and the inner wall of the insertion hole. The lower end of the insertion rod extends from the lower end of the first mounting tube so that the sensor can detect the water content of the oil in the adapter tube. The sealing assembly is movable in the adapter tube in the vertical direction. The sealing assembly is used to rise and seal the lower end of the first mounting tube after the lower end of the insertion rod extends into the first mounting tube.

[0007] It has at least the following beneficial effects:

[0008] The adapter pipe connects to the delivery pipeline, allowing oil from the delivery pipeline to flow into the adapter pipe. A sensor is mounted on the lower end of a insertion rod, which extends from the lower end of the first mounting tube. This allows the sensor on the lower end of the insertion rod to reach into the adapter pipe, enabling it to detect the water content of the oil within. When the moisture detector needs to be removed from the adapter pipe for maintenance, the maintenance personnel can first remove the display from the upper end of the first mounting tube, detaching the display from the upper end of the first mounting tube. Then, the maintenance personnel can lift the display upwards, causing the insertion rod to move upwards within the insertion hole. During this upward movement, the first sealing ring seals the gap between the insertion rod and the inner wall of the insertion hole, effectively preventing oil below the sealing block from overflowing from the insertion hole. Once the lower end of the insertion rod rises into the first mounting tube, the sealing assembly rises and seals the lower end of the first mounting tube, preventing oil from flowing into the first mounting tube. The insertion rod continues to move upwards, and once it is withdrawn from the insertion hole and the first mounting tube, the moisture detector can be disassembled. During the disassembly process, the sealing assembly simultaneously seals the lower end of the first mounting tube, effectively preventing oil from the transfer pipe from flowing into the first mounting tube and splashing. This method of disassembling the moisture detector in the oil moisture detection device eliminates the need for depressurizing the delivery pipeline, shortening the maintenance time for personnel and thus improving the ease of maintenance.

[0009] According to an embodiment of the petroleum moisture detection device of this utility model, the sealing assembly includes a slide cylinder, a sealing plate, and an elastic element. The diameter of the slide cylinder is smaller than the diameter of the sealing plate. The lower end of the slide cylinder is connected to the sealing plate. The sealing plate is disposed below the first mounting tube. The slide cylinder is slidably disposed inside the first mounting tube in a vertical direction. A second sealing ring is provided on the outer wall of the slide cylinder. The outer wall of the slide cylinder abuts against the inner wall of the first mounting tube through the second sealing ring. The second sealing ring is used to seal the outer wall of the slide cylinder against the inner wall of the first mounting tube. The gap between the walls, the slide cylinder is provided with multiple oil passage holes, the inner cavity of the slide cylinder is connected to the adapter pipe through the multiple oil passage holes, so that the oil in the adapter pipe can flow through the inner cavity of the slide cylinder, the insert rod and the sensor extend into the slide cylinder, the upper end of the elastic member abuts against the sealing plate, the lower end of the elastic member is connected to the inner wall of the adapter pipe, the elastic member is used to push the sealing plate upward so that the sealing plate can abut against the lower end of the insert rod, and the sealing plate can rise and seal the lower end of the first mounting tube.

[0010] According to the petroleum moisture detection device of this utility model embodiment, the sealing assembly further includes a third sealing ring, which is disposed on the sealing plate. The sealing plate abuts against the lower end of the first mounting tube through the third sealing ring, and the third sealing ring is used to seal the gap between the sealing plate and the lower end of the first mounting tube.

[0011] According to the petroleum moisture detection device of this utility model embodiment, a first limiting groove is provided on the lower end of the first mounting pipe, and the sealing plate abuts against the inner bottom wall of the first limiting groove through the third sealing ring.

[0012] According to the petroleum moisture detection device of this utility model embodiment, a second annular groove is provided on the outer wall of the slide cylinder, the second sealing ring is disposed in the second annular groove, and a third annular groove is provided on the sealing plate, the third sealing ring is disposed in the third annular groove.

[0013] According to the petroleum moisture detection device of this utility model embodiment, a second limiting groove is provided on the sealing plate, the upper end of the elastic member extends into the second limiting groove, and the upper end of the elastic member abuts against the inner bottom wall of the second limiting groove.

[0014] According to the petroleum moisture detection device of this utility model embodiment, the sealing assembly further includes a filter screen cylinder, which is disposed inside the slide cylinder and connected to the inner wall of the slide cylinder. The filter screen cylinder is used to filter impurities in the petroleum.

[0015] According to the petroleum moisture detection device of this utility model embodiment, the sealing assembly further includes a plug head, the adapter pipe is provided with a second mounting pipe coaxial with the first mounting pipe, the second mounting pipe is connected to the adapter pipe, the plug head is threadedly connected to the outer wall of the second mounting pipe so that the plug head can seal the second mounting pipe, and the lower end of the elastic member is connected to the plug head.

[0016] According to the petroleum moisture detection device of this utility model embodiment, the inner wall of the upper end of the first mounting tube is provided with an internal thread structure, and the outer wall of the lower end of the display is provided with an external thread structure. The external thread structure can be threadedly connected with the internal thread structure so that the display is connected to the upper end of the first mounting tube.

[0017] According to the petroleum moisture detection device of this utility model embodiment, the lower end of the insertion rod is formed with a pointed tip.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a cross-sectional schematic diagram of the petroleum moisture detection device according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 This is a partial structural cross-sectional view of the petroleum moisture detection device according to an embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of the moisture detector in the petroleum moisture detection device according to an embodiment of the present invention after disassembly.

[0024] Icon labels:

[0025] Adapter pipe 100; first mounting pipe 110; first limiting groove 111; second mounting pipe 120; sealing block 130; insertion hole 131; first sealing ring 140;

[0026] Moisture detector 200; Display 210; Insert rod 220; Sensor 230;

[0027] Sealing assembly 300; slide 310; oil passage 311; sealing plate 320; second limiting groove 321; elastic element 330; second sealing ring 340; third sealing ring 350; plug head 360. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] refer to Figures 1 to 4 This utility model discloses a petroleum moisture detection device, including a transfer pipe 100, a first installation pipe 110, a sealing block 130, a moisture detector 200, and a sealing assembly 300.

[0032] The adapter pipe 100 is used to connect with the delivery pipeline so that oil in the delivery pipeline can flow into the adapter pipe 100. A first mounting pipe 110 is parallel to the vertical direction and is mounted on the adapter pipe 100, with its lower end extending into the adapter pipe 100. A sealing block 130 is located inside the first mounting pipe 110 and is connected to the inner wall of the first mounting pipe 110. The sealing block 130 has an insertion hole 131 coaxial with the first mounting pipe 110, and a first sealing ring 140 is provided on the inner wall of the insertion hole 131. The moisture detector 200 includes a display 210, an insert rod 220, and a sensor 230. The display 210 is connected to the upper end of the insert rod 220, and the sensor 230 is located on the lower end of the insert rod 220. The display 210 is detachably connected to the upper end of the first mounting tube 110. The insert rod 220 passes through the insert hole 131 and abuts against the first sealing ring 140, which seals the gap between the insert rod 220 and the inner wall of the insert hole 131. The lower end of the insert rod 220 extends from the lower end of the first mounting tube 110, enabling the sensor 230 to detect the water content of the oil in the adapter tube 100. A sealing assembly 300 is movably disposed within the adapter tube 100 in the vertical direction. The sealing assembly 300 rises and seals the lower end of the first mounting tube 110 after the lower end of the insert rod 220 extends into the first mounting tube 110.

[0033] In this embodiment of the invention, sensor 230 is electrically connected to display 210, enabling display 210 to display the water content of the oil in the transfer pipe 100 in real time. The moisture detector 200 also includes a communicator, which transmits the real-time water content of the oil in the transfer pipe 100 to the control room, allowing personnel in the control room to monitor the water content of the oil in real time. Sensor 230 can be a microwave sensor. Microwave sensors 230 are based on the different characteristics of microwave propagation in oil and water, such as microwave absorption, reflection, and scattering. When the water content in the oil changes, the parameters of the microwave signal change accordingly. The microwave sensor 230 determines the water content by detecting these parameter changes. Sensor 230 and display 210 are common devices in the field of petroleum analysis and detection, and will not be further described here. The transfer pipe 100 is installed on the pipeline used to transport oil, allowing oil in the pipeline to flow through the transfer pipe 100. In other words, oil in the upstream pipeline can flow into the downstream pipeline through the transfer pipe 100. In this embodiment of the invention, the axis of the first mounting tube 110 is perpendicular to the axis of the adapter tube 100, and the upper end of the first mounting tube 110 is disposed outside the adapter tube 100. The sealing block 130 is connected to the inner wall of the first mounting tube 110, so that there is no gap between the sealing block 130 and the inner wall of the first mounting tube 110.

[0034] Understandably, the transfer pipe 100 is connected to the delivery pipeline, allowing oil in the delivery pipeline to flow into the transfer pipe 100. The sensor 230 is mounted on the lower end of the insertion rod 220, with the lower end of the insertion rod 220 extending from the lower end of the first mounting tube 110. This allows the sensor 230 on the lower end of the insertion rod 220 to extend into the transfer pipe 100, thereby enabling the sensor 230 to detect the water content of the oil in the transfer pipe 100. When the moisture detector 200 needs to be removed from the transfer pipe 100 for maintenance, the maintenance personnel can first remove the display 210 from the upper end of the first mounting tube 110, thus disconnecting the display 210 from the upper end of the first mounting tube 110. Then, the maintenance personnel can lift the display 210 upwards, causing the insertion rod 220 to move upwards within the insertion hole 131. As the insertion rod 220 moves upward, the first sealing ring 140 seals the gap between the insertion rod 220 and the inner wall of the insertion hole 131, effectively preventing oil below the sealing block 130 from overflowing from the insertion hole 131. When the lower end of the insertion rod 220 rises into the first mounting tube 110, the sealing assembly 300 rises and seals the lower end of the first mounting tube 110, preventing oil in the transfer tube 100 from flowing into the first mounting tube 110. The insertion rod 220 continues to move upward, and when it is withdrawn from the insertion hole 131 and the first mounting tube 110, the moisture detector 200 can be disassembled. During the disassembly of the moisture detector 200, the sealing assembly 300 simultaneously seals the lower end of the first mounting tube 110, effectively preventing oil in the transfer tube 100 from flowing into the first mounting tube 110 and splashing. The disassembly method of the moisture detector 200 in this oil moisture detection device eliminates the need for depressurization of the delivery pipeline, shortens the maintenance time for maintenance personnel, and thus improves the ease of maintenance of the oil moisture detection device.

[0035] refer to Figures 1 to 4The sealing assembly 300 includes a slide cylinder 310, a sealing plate 320, and an elastic element 330. The diameter of the slide cylinder 310 is smaller than the diameter of the sealing plate 320, and the diameter of the sealing plate 320 is larger than the inner diameter of the first mounting tube 110. The lower end of the slide cylinder 310 is connected to the sealing plate 320, which is located below the first mounting tube 110. The slide cylinder 310 is slidably disposed within the first mounting tube 110 in the vertical direction. A second sealing ring 340 is provided on the outer wall of the slide cylinder 310. The outer wall of the slide cylinder 310 abuts against the inner wall of the first mounting tube 110 through the second sealing ring 340. The second sealing ring 340 is used to seal the outer wall of the slide cylinder 310 against the inner wall of the first mounting tube 110. The gap between the inner walls of the pipe 110, the slide cylinder 310 is provided with multiple oil passage holes 311, the inner cavity of the slide cylinder 310 is connected to the adapter pipe 100 through the multiple oil passage holes 311 so that the oil in the adapter pipe 100 can flow through the inner cavity of the slide cylinder 310, the insert rod 220 and the sensor 230 extend into the slide cylinder 310, the upper end of the elastic member 330 abuts against the sealing plate 320, the lower end of the elastic member 330 is connected to the inner wall of the adapter pipe 100, the elastic member 330 is used to push the sealing plate 320 upward so that the sealing plate 320 can abut against the lower end of the insert rod 220 and the sealing plate 320 can rise and seal the lower end of the first mounting pipe 110.

[0036] It is understandable that the elastic element 330 can be a compression spring. During the operation of the oil moisture detection device, the lower end of the insertion rod 220 and the sensor 230 are both located inside the slide cylinder 310. At this time, the elastic element 330 is in a compressed state. Under the upward pushing force of the elastic element 330, the upper surface of the sealing plate 320 abuts against the lower end of the insertion rod 220. The area on the slide cylinder 310 corresponding to the multiple oil passage holes 311 extends from the lower end of the first mounting tube 110 and into the transfer tube 100. The inner cavity of the slide cylinder 310 is connected to the transfer tube 100 through the multiple oil passage holes 311, allowing the oil flowing in the transfer tube 100 to flow into the slide cylinder 310, and also allowing the oil in the slide cylinder 310 to flow into the transfer tube 100, thereby enabling the sensor 230 inside the slide cylinder 310 to detect the water content of the oil. (Reference) Figure 1 and Figure 4When the moisture detector 200 needs to be removed from the adapter tube 100 for maintenance, the maintenance personnel can first remove the display 210 from the upper end of the first mounting tube 110, thus disconnecting the display 210 from the upper end of the first mounting tube 110. Then, the maintenance personnel can lift the display 210 upwards, causing the insertion rod 220 to move upwards within the insertion hole 131. During the upward movement of the insertion rod 220, the compressed elastic element 330 begins to extend and pushes the sealing plate 320 upwards, causing the sealing plate 320 to abut against the lower end of the insertion rod 220. This causes the slide cylinder 310 and the sealing plate 320 to rise together with the insertion rod 220. At this time, the slide cylinder 310 gradually extends into the first mounting tube 110, and the sealing plate 320 gradually approaches the lower end of the first mounting tube 110. After the insertion rod 220 rises to a certain extent, the sealing plate 320 will abut against the lower end of the first mounting tube 110. Under the pushing force of the elastic element 330, the sealing plate 320 will press firmly against the lower end of the first mounting tube 110, thus sealing the lower end of the first mounting tube 110 and preventing oil in the transfer pipe 100 from flowing into the first mounting tube 110 and splashing. Finally, the maintenance personnel can remove the insertion rod 220 from the insertion hole 131 and the first mounting tube 110 to complete the disassembly of the moisture detector 200.

[0037] It should be explained that during the operation of the oil moisture detection device, some oil in the transfer pipe 100 will flow through the oil hole 311 and the slide 310 and flow into the area of ​​the first mounting pipe 110 located below the sealing block 130. Since the first sealing ring 140 in the insertion hole 131 seals the gap between the insertion rod 220 and the inner wall of the insertion hole 131, this part of the oil will not spray out from the insertion hole 131. After the sealing plate 320 seals the lower end of the first mounting pipe 110, this part of the oil will not flow. Therefore, during the process of the insertion rod 220 being pulled out of the insertion hole 131, this part of the oil will not spray out from the insertion hole 131, and even after the insertion rod 220 is completely pulled out of the insertion hole 131, this part of the oil will not spray out from the insertion hole 131. During the disassembly of the moisture detector 200, before the insertion rod 220 is pulled out of the insertion hole 131, the sealing plate 320 has already sealed the lower end of the first mounting tube 110, preventing oil in the adapter tube 100 from flowing into the first mounting tube 110 and spraying out from the insertion hole 131. After the sealing plate 320 seals the lower end of the first mounting tube 110, the slide cylinder 310 is fully inserted into the first mounting tube 110. In this embodiment of the present invention, a plurality of first sealing rings 140 are provided in the insertion hole 131, and the plurality of first sealing rings 140 are distributed in the vertical direction.

[0038] After the moisture detector 200 is maintained, refer to Figure 4Maintenance personnel can first insert the lower end of the insertion rod 220 into the insertion hole 131 on the sealing block 130. During the descent of the insertion rod 220, the insertion rod 220 and the first sealing ring 140 inside the insertion hole 131 remain in contact. As the insertion rod 220 descends, the sensor 230 and the lower end of the insertion rod 220 gradually extend into the slide cylinder 310. After descending to a certain extent, the insertion rod 220 will abut against the upper surface of the sealing plate 320. After the lower end of the insertion rod 220 abuts against the upper surface of the sealing plate 320, the insertion rod 220 continues to move downwards, pushing the sealing plate 320 and the slide cylinder 310 downwards, and the elastic element 330 begins to compress. After the sealing plate 320 begins to descend, the slide cylinder 310 extends from the lower end of the first mounting tube 110, opening the lower end of the first mounting tube 110. At this point, oil in the transfer pipe 100 can flow into the slide cylinder 310, allowing the sensor 230 to begin detecting the water content of the oil. After the insertion rod 220 descends to its lower limit position, maintenance personnel can reinstall the display 210 on the upper end of the first mounting tube 110 to complete the installation of the moisture detector 200. (Reference) Figure 1 and Figure 3 The lower end of the insertion rod 220 has a pointed tip. This pointed tip acts as a guide, allowing the insertion rod 220 to be more easily inserted into the insertion hole 131 on the sealing block 130. In this embodiment, the slide cylinder 310 is slidably disposed within the first mounting tube 110. A second sealing ring 340 is fitted onto the outer wall of the slide cylinder 310, and the slide cylinder 310 abuts against the inner wall of the first mounting tube 110 through the second sealing ring 340. At this time, the slide cylinder 310, moving up and down within the first mounting tube 110, resembles a piston structure, which will not be further elaborated here. In this embodiment, multiple second sealing rings 340 are fitted onto the outer wall of the slide cylinder 310, and these multiple second sealing rings 340 are distributed along the vertical direction.

[0039] refer to Figure 3The sealing assembly 300 also includes a third sealing ring 350, which is disposed on the sealing plate 320. The sealing plate 320 abuts against the lower end of the first mounting tube 110 via the third sealing ring 350, and the third sealing ring 350 is used to seal the gap between the sealing plate 320 and the lower end of the first mounting tube 110. A first limiting groove 111 is provided on the lower end of the first mounting tube 110, and the sealing plate 320 abuts against the inner bottom wall of the first limiting groove 111 via the third sealing ring 350. It can be understood that during the disassembly of the moisture detector 200, the elastic element 330 can push the sealing plate 320 upward, causing the sealing plate 320 and the slide cylinder 310 to move upward, and causing the sealing plate 320 to extend into the first limiting groove 111 on the lower end of the first mounting tube 110. Under the continuous pushing force of the elastic element 330, the sealing plate 320 is pressed against the inner bottom wall of the first limiting groove 111 by the third sealing ring 350. The third sealing ring 350 deforms, allowing it to seal the gap between the lower end of the first mounting pipe 110 and the sealing plate 320. Thus, the sealing plate 320 and the third sealing ring 350 together seal the lower end of the first mounting pipe 110, preventing oil from flowing into the first mounting pipe 110 from the transfer pipe 100. The inner wall of the first limiting groove 111 abuts against the sealing plate 320, limiting its position and preventing it from shaking during the sealing process of the first mounting pipe 110, thus ensuring the sealing effect of the sealing plate 320.

[0040] In this embodiment of the invention, a second annular groove is provided on the outer wall of the slide cylinder 310, and a second sealing ring 340 is disposed within the second annular groove. A third annular groove is provided on the sealing plate 320, and a third sealing ring 350 is disposed within the third annular groove. It is understood that the second sealing ring 340 is engaged in the second annular groove, preventing it from moving on the slide cylinder 310 and ensuring its sealing effect. The third sealing ring 350 is engaged in the third annular groove, preventing it from moving on the sealing plate 320 and ensuring its sealing effect. In this embodiment of the invention, a first annular groove is provided on the inner wall of the insertion hole 131, and a first sealing ring 140 is engaged in the first annular groove, preventing it from moving relative to the inner wall of the insertion hole 131 and ensuring its sealing effect.

[0041] refer to Figure 3A second limiting groove 321 is provided on the sealing plate 320. The upper end of the elastic member 330 extends into the second limiting groove 321, and the upper end of the elastic member 330 abuts against the inner bottom wall of the second limiting groove 321. It can be understood that the inner wall of the second limiting groove 321 abuts against the elastic member 330, thus limiting the elastic member 330 and preventing it from shaking during compression and extension, which helps ensure the pushing effect of the elastic member 330. As an embodiment of this utility model, the sealing assembly 300 also includes a filter screen cylinder, which is disposed inside the slide cylinder 310 and connected to the inner wall of the slide cylinder 310. The filter screen cylinder is used to filter impurities in the petroleum. Understandably, the filter screen plays a filtering role in the oil in the transfer tube 100, preventing the oil flowing into the slide tube 310 from carrying impurities, thereby preventing impurities from adhering to the sensor 230, which helps to ensure the detection effect of the sensor 230.

[0042] refer to Figure 1 and Figure 4 The sealing assembly 300 also includes a plug head 360. The adapter pipe 100 has a second mounting pipe 120 coaxial with the first mounting pipe 110, and the second mounting pipe 120 communicates with the adapter pipe 100. The plug head 360 is threadedly connected to the outer wall of the second mounting pipe 120 so that the plug head 360 can seal the second mounting pipe 120. The lower end of the elastic element 330 is connected to the plug head 360. Understandably, when the elastic element 330 needs to be installed, maintenance personnel can first connect the lower end of the elastic element 330 to the plug head 360, then insert the elastic element 330 into the second mounting pipe 120 and tighten the plug head 360 onto the second mounting pipe 120, so that the upper end of the elastic element 330 can extend into the adapter pipe 100 and abut against the sealing plate 320. In this embodiment of the invention, the inner diameter of the second mounting tube 120 is larger than the diameter of the sealing plate 320, so as to facilitate the insertion of the slide cylinder 310 and the sealing plate 320 into the adapter tube 100, and also to facilitate the insertion of the slide cylinder 310 into the first mounting tube 110. In this embodiment of the invention, a fourth sealing ring is also provided between the sealing head 360 and the second mounting tube 120, which will not be described further here.

[0043] refer to Figure 1The inner wall of the upper end of the first mounting tube 110 has an internal thread structure, and the outer wall of the lower end of the display 210 has an external thread structure. The external thread structure can be threadedly connected to the internal thread structure, so that the display 210 is connected to the upper end of the first mounting tube 110. It is understood that when the moisture detector 200 needs to be disassembled, the display 210 can be loosened from the upper end of the first mounting tube 110 first, and then the insertion rod 220 can be pulled out from the first mounting tube 110. When the moisture detector 200 needs to be installed, the insertion rod 220 can be inserted into the insertion hole 131 on the sealing block 130 first, and then the display 210 can be tightened to the upper end of the first mounting tube 110.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A petroleum moisture detection device, characterized in that, include: A transfer pipe (100) is used to connect to a delivery pipeline so that oil in the delivery pipeline can flow into the transfer pipe (100); The first mounting tube (110) is parallel to the vertical direction and is disposed on the adapter tube (100). The lower end of the first mounting tube (110) extends into the adapter tube (100). A sealing block (130) is disposed inside the first mounting tube (110). The sealing block (130) is connected to the inner wall of the first mounting tube (110). An insertion hole (131) coaxial with the first mounting tube (110) is provided on the sealing block (130). A first sealing ring (140) is provided on the inner wall of the insertion hole (131). A moisture detector (200) includes a display (210), an insert rod (220), and a sensor (230). The display (210) is connected to the upper end of the insert rod (220), and the sensor (230) is located on the lower end of the insert rod (220). The display (210) is detachably connected to the upper end of the first mounting tube (110). The insert rod (220) passes through the insert hole (131) and abuts against the first sealing ring (140). The first sealing ring (140) is used to seal the gap between the insert rod (220) and the inner wall of the insert hole (131). The lower end of the insert rod (220) extends from the lower end of the first mounting tube (110) so that the sensor (230) can detect the water content of the oil in the adapter tube (100). A sealing assembly (300) is movably disposed within the adapter tube (100) in a vertical direction. The sealing assembly (300) is used to rise and seal the lower end of the first mounting tube (110) after the lower end of the insert rod (220) extends into the first mounting tube (110).

2. The petroleum moisture detection device according to claim 1, characterized in that: The sealing assembly (300) includes a slide cylinder (310), a sealing plate (320), and an elastic element (330). The diameter of the slide cylinder (310) is smaller than the diameter of the sealing plate (320). The lower end of the slide cylinder (310) is connected to the sealing plate (320). The sealing plate (320) is located below the first mounting tube (110). The slide cylinder (310) is slidably disposed within the first mounting tube (110) in the vertical direction. A second sealing ring (340) is provided on the outer wall of the slide cylinder (310). The outer wall of the slide cylinder (310) is held against the inner wall of the first mounting tube (110) by the second sealing ring (340). The second sealing ring (340) is used to seal the gap between the outer wall of the slide cylinder (310) and the inner wall of the first mounting tube (110). The cylinder (310) has multiple oil passage holes (311). The inner cavity of the cylinder (310) is connected to the adapter pipe (100) through the multiple oil passage holes (311) so that the oil in the adapter pipe (100) can flow through the inner cavity of the cylinder (310). The insert rod (220) and the sensor (230) extend into the cylinder (310). The upper end of the elastic member (330) abuts against the sealing plate (320), and the lower end of the elastic member (330) is connected to the inner wall of the adapter pipe (100). The elastic member (330) is used to push the sealing plate (320) upward so that the sealing plate (320) can abut against the lower end of the insert rod (220) and so that the sealing plate (320) can rise and seal the lower end of the first mounting pipe (110).

3. The petroleum moisture detection device according to claim 2, characterized in that: The sealing assembly (300) further includes a third sealing ring (350), which is disposed on the sealing plate (320). The sealing plate (320) abuts against the lower end of the first mounting tube (110) through the third sealing ring (350). The third sealing ring (350) is used to seal the gap between the sealing plate (320) and the lower end of the first mounting tube (110).

4. The petroleum moisture detection device according to claim 3, characterized in that: A first limiting groove (111) is provided on the lower end of the first mounting tube (110), and the sealing plate (320) abuts against the inner bottom wall of the first limiting groove (111) through the third sealing ring (350).

5. The petroleum moisture detection device according to claim 3, characterized in that: The outer wall of the slide cylinder (310) is provided with a second annular groove, and the second sealing ring (340) is provided in the second annular groove. The sealing plate (320) is provided with a third annular groove, and the third sealing ring (350) is provided in the third annular groove.

6. The petroleum moisture detection device according to claim 2, characterized in that: The sealing plate (320) is provided with a second limiting groove (321), the upper end of the elastic member (330) extends into the second limiting groove (321), and the upper end of the elastic member (330) abuts against the inner bottom wall of the second limiting groove (321).

7. The petroleum moisture detection device according to claim 2, characterized in that: The sealing assembly (300) also includes a filter screen cylinder disposed inside the slide cylinder (310) and connected to the inner wall of the slide cylinder (310). The filter screen cylinder is used to filter impurities in the petroleum.

8. The petroleum moisture detection device according to claim 2, characterized in that: The sealing assembly (300) further includes a plug head (360). The adapter pipe (100) is provided with a second mounting pipe (120) coaxial with the first mounting pipe (110). The second mounting pipe (120) is connected to the adapter pipe (100). The plug head (360) is threadedly connected to the outer wall of the second mounting pipe (120) so that the plug head (360) can seal the second mounting pipe (120). The lower end of the elastic element (330) is connected to the plug head (360).

9. The petroleum moisture detection device according to claim 1, characterized in that: The inner wall of the upper end of the first mounting tube (110) is provided with an internal thread structure, and the outer wall of the lower end of the display (210) is provided with an external thread structure. The external thread structure can be threadedly connected with the internal thread structure so that the display (210) is connected to the upper end of the first mounting tube (110).

10. The petroleum moisture detection device according to claim 1, characterized in that: The lower end of the insertion rod (220) is formed with a pointed tip.

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