Loose monitoring device for tanker flange connection pipeline

Abstract

The utility model provides a kind of oil ship flange connecting pipeline loosening monitoring device, it includes: flange and flange bolt, one end of connecting plate is fixedly connected with first hoop, the other end of connecting plate is equipped with second hoop, and second hoop is connected with the end of connecting plate by translation mechanism, one end of connecting plate is fixedly connected with metal plate, and multiple evenly distributed first monitoring mechanism are equipped on metal plate, the other end of connecting plate is fixedly connected with second monitoring mechanism.When the flange of pipeline connecting position is monitored in the application, the convenient connection is realized by setting connecting plate on pipeline, the convenient installation of monitoring device can be facilitated, and the tightness of flange is monitored after installation, the pressure change of flange connecting position can be monitored by pressure sensor, effective monitoring can be carried out when nut rotates when loosening occurs, and different number of nuts are monitored simultaneously, and the monitoring effect of flange connecting position can be improved by cooperating with pressure monitoring, and the stability of flange connecting position is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an oil ship flange connecting pipeline loosening monitoring device belongs to flange connecting pipeline technical field. BACKGROUND

[0002] Flange connecting pipeline is a common pipeline connecting mode, is widely used in industry, building, chemical industry etc. field, flange connecting pipeline is also important in the field of ships, such as Suezmax crude oil ship (refers to the deadweight tonnage about 12-16 ten thousand tons, main scale adaptation Suez canal navigation limit, can load through Suez canal's medium-sized crude oil ship), and its ship high pressure fuel pipe, oil pipeline etc. system adopts flange connection in large quantities. Flange is a disc-shaped part, usually used in pairs, two flanges are fastened together through bolts, realize the connection of pipeline, and flange connection has the characteristics of convenient disassembly, good sealing, strong pressure bearing capacity, is suitable for high pressure, high temperature or large diameter pipeline system. Mainly there is flat welding flange: it is suitable for low pressure occasion, and installation is simple, and the cost is lower;Butt welding flange: it is suitable for high pressure, high temperature environment, and the strength is high, and the sealing performance is good;Socket welding flange: it is used for small diameter pipeline, and the welding strength is high;Through threaded connection, it is suitable for occasions not suitable for welding. Flange connecting pipeline has the advantages of convenient disassembly and maintenance, good sealing performance, wide application range, but the volume is relatively large, the cost is relatively high, and accurate alignment is required during installation.

[0003] Flange connecting pipeline is a kind of pipeline structure connected through flange, and the flanges are usually connected by bolts, but due to long-term use and pipeline vibration problems, flange loosening problems may occur between flanges, and due to the difficulty in identifying the flange connection position with naked eye, serious leakage of pipeline fluid may occur, even rupture, and the flange connection position of the pipeline is not easy to monitor effectively, thereby affecting the sealing performance of the flange of the pipeline connection, and reducing the stability and safety of the pipeline medium, and when the device is used for flange connection position monitoring, the installation difficulty is affected, and it is difficult to adapt to different sizes of pipeline. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of oil ship flange connecting pipeline loosening monitoring devices to solve the technical problem proposed above.

[0005] The utility model solves the above technical problem by the following technical scheme: The utility model provides a kind of oil ship flange connecting pipeline loosening monitoring device, including the flange being connected on pipeline and the flange bolt being installed in the edge of flange, the surface of the pipeline located in the two sides of flange is equipped with connecting plate, it is characterized in that, first clasp is fixedly connected in one end of the connecting plate, second clasp is equipped in the other end of the connecting plate, and second clasp is connected with the end of connecting plate by translation mechanism; A metal plate is fixedly connected to one end of the connecting plate. The metal plate is located on one side of the first clamp. The metal plate is provided with a plurality of evenly distributed first monitoring mechanisms, and the first monitoring mechanisms are distributed corresponding to the flange bolts. The other end of the connecting plate is fixedly connected to a second monitoring mechanism, and the second monitoring mechanism is in contact with the flange sidewall.

[0006] In this technical solution, the connecting plate has a U-shaped structure and flanges at both ends. The flange at one end of the connecting plate is in close contact with the surface of the pipe, and two symmetrically distributed first clamps are provided at one end of the connecting plate.

[0007] In this technical solution, the other end of the connecting plate is provided with two symmetrically distributed second clamps. The two second clamps are respectively connected to both sides of the translation mechanism. The translation mechanism includes a bonding plate and a limiting block. The two sides of the bonding plate are respectively fixedly connected to the second clamps. The bonding plate is bonded to the surface of the pipe. The limiting block is fixedly connected to the end of the connecting plate, and the limiting block is slidably connected to the groove opened on the side end of the bonding plate.

[0008] In this technical solution, both the first clamp and the second clamp are inserted through the screw, and the end of the screw is threaded with a nut.

[0009] In this technical solution, there are two metal plates, both of which are arc-shaped and symmetrically arranged on both sides of the pipe, and each metal plate is provided with multiple evenly distributed positioning holes.

[0010] In this technical solution, the first monitoring mechanism includes an annular plate and a recognition camera. The annular plate is attached to the side wall of the metal plate, and the recognition camera is fixedly connected to the annular plate. The recognition camera is distributed correspondingly to the flange bolts.

[0011] In this technical solution, the annular plate is fixedly connected to two studs, both studs are inserted through the positioning hole, and each stud is threadedly connected to the knob.

[0012] In this technical solution, the second monitoring mechanism includes a movable rod, a guide rod, and a pressure plate. The guide rod is movably sleeved inside the movable rod. One end of the guide rod is fixedly connected to the pressure plate, and the other end of the guide rod is fitted with a pressure sensor, which is in contact with the inside of the movable rod.

[0013] In this technical solution, the pressure plate is in contact with the flange sidewall, the pressure plate is connected to the end of the movable rod through a return spring, and the return spring is sleeved with the guide rod.

[0014] In this technical solution, the movable rod is internally inserted into one end of the connecting plate, the side wall of the connecting plate is fixedly connected to the connecting sleeve, and the movable rod is movably sleeved into the inside of the connecting sleeve. The movable rod has multiple evenly distributed insertion holes, and the connecting sleeve is threaded with screws, and the screws are fitted and inserted into the insertion holes.

[0015] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0016] The positive and progressive effects of this utility model are as follows: The aforementioned oil tanker flange connection loosening monitoring device monitors the flange at the pipeline connection position. It facilitates easy connection by installing a connecting plate on the pipeline, allowing for convenient installation of the monitoring device. It is applicable to different types of pipelines, improving the applicability of the monitoring device. After installation, it monitors the tightness of the flange. A pressure sensor can monitor rapid pressure changes at the flange connection position. Combined with a recognition camera to monitor multiple nuts, it can effectively monitor nut rotation when loosening occurs. It can also monitor different numbers of nuts simultaneously. Combined with pressure monitoring, it improves the monitoring effect of the flange connection position and effectively enhances the stability of the flange connection position. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the second clamp of this utility model.

[0019] Figure 3 This is a schematic diagram of the half-section structure of this utility model.

[0020] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 5 This is a partial three-dimensional structural diagram of the metal plate of this utility model.

[0022] Figure 6 This is a schematic diagram of the external front view of the present invention.

[0023] Figure 7 This is a top view of the external structure of this utility model.

[0024] Explanation of reference numerals in the attached figures 1. Pipe; 2. Flange bolt; 3. Connecting plate; 4. First clamp; 5. Limiting block; 6. Adhesive plate; 7. Second clamp; 8. Screw; 9. Nut; 10. Metal plate; 11. Positioning hole; 12. Annular piece; 13. Recognition camera; 14. Stud; 15. Knob; 16. Connecting sleeve; 17. Movable rod; 18. Insertion hole; 19. Guide rod; 20. Pressure plate; 21. Return spring; 22. Pressure sensor. Detailed Implementation

[0025] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments described herein.

[0026] like Figures 1-7 As shown, the oil tanker flange connection pipeline loosening monitoring device includes a flange connected to the pipeline 1 and flange bolts 2 installed on the flange edge. The surface of the pipeline 1 located on both sides of the flange is provided with connecting plates 3. The characteristic is that a first clamp 4 is fixedly connected to one end of the connecting plate 3, and a second clamp 7 is provided at the other end of the connecting plate 3. The second clamp 7 is connected to the end of the connecting plate 3 through a translation mechanism. One end of the connecting plate 3 is fixedly connected to a metal plate 10. The metal plate 10 is located on one side of the first clamp 4. The metal plate 10 is provided with a plurality of evenly distributed first monitoring mechanisms, and the first monitoring mechanisms are distributed corresponding to the flange bolts 2. The other end of the connecting plate 3 is fixedly connected to a second monitoring mechanism, and the second monitoring mechanism is in contact with the flange sidewall.

[0027] The connecting plate 3 has a U-shaped structure and flanges at both ends. The flange at one end of the connecting plate 3 is in contact with the surface of the pipe 1. The connecting plate 3 has two symmetrically distributed first clamps 4 at one end and two symmetrically distributed second clamps 7 at the other end. The two second clamps 7 are respectively connected to both sides of the translation mechanism. The translation mechanism includes a bonding plate 6 and a limiting block 5. The bonding plate 6 is fixedly connected to the second clamps 7 on both sides. The bonding plate 6 is in contact with the surface of the pipe 1. The limiting block 5 is fixedly connected to the end of the connecting plate 3 and is slidably connected to the groove opened on the side end of the bonding plate 6.

[0028] In this technical solution, the flange at one end of the connecting plate 3 can fit against the surface of the pipe 1, and the flange at the other end of the connecting plate 3 is used to connect the limiting block 5. It can slide relative to the fitting plate 6, which facilitates installation and can effectively monitor the loosening situation when it occurs. The pipe 1 is tightened by the first clamp 4 and the second clamp 7 to achieve tight installation. When the flange is loose, the displacement of the flange will be monitored by the second monitoring mechanism. At this time, the limiting block 5 can be slightly offset on the fitting plate 6 to ensure the accuracy of the monitoring value.

[0029] The first clamp 4 and the second clamp 7 are both inserted through the screw 8, and the end of the screw 8 is threaded with a nut 9; there are two metal plates 10, both of which are arc-shaped and symmetrically arranged on both sides of the pipe 1, and each metal plate 10 is provided with multiple evenly distributed positioning holes 11.

[0030] In this technical solution, the first clamp 4 and the second clamp 7 are connected by the screw 8, so that the first clamp 4 and the second clamp 7 are locked and securely installed on the surface of the pipe 1. A metal plate 10 is set for the installation of the first monitoring mechanism, and the position of the flange bolt 2 is monitored by the first monitoring mechanism.

[0031] The first monitoring mechanism includes an annular plate 12 and an identification camera 13. The annular plate 12 is attached to the side wall of the metal plate 10. The identification camera 13 is fixedly connected to the annular plate 12, and the identification camera 13 is distributed correspondingly to the flange bolts 2. The annular plate 12 is fixedly connected to two studs 14. Both studs 14 are inserted through the positioning hole 11. Each stud 14 is threadedly connected to the knob 15.

[0032] In this technical solution, the identification camera 13 is installed through the annular plate 12 and adjusted according to the installation position of the device. The position can be adjusted by the cooperation of the stud 14 and the positioning hole 11, and then tightened by the knob 15. The identification camera 13 captures the image of the flange bolt 2.

[0033] Furthermore, during monitoring by the identification camera 13, images are periodically captured to obtain the distribution position of the six corners of each flange bolt 2. The periodically captured images are compared by the system to determine the rotation angle when the flange bolt 2 is loosened. The comparison of the captured images is existing technology, so it will not be elaborated in this application.

[0034] The second monitoring mechanism includes a movable rod 17, a guide rod 19, and a pressure plate 20. The guide rod 19 is movably sleeved inside the movable rod 17. One end of the guide rod 19 is fixedly connected to the pressure plate 20, and the other end of the guide rod 19 is fitted with a pressure sensor 22, which is in contact with the inside of the movable rod 17. The pressure plate 20 is in contact with the side wall of the flange and is connected to the end of the movable rod 17 via a return spring 21, which is sleeved with the guide rod 19. The movable rod 17 is inserted through one end of the connecting plate 3. The side wall of the connecting plate 3 is fixedly connected to the connecting sleeve 16, and the movable rod 17 is movably sleeved inside the connecting sleeve 16. The movable rod 17 has multiple evenly distributed insertion holes 18. The connecting sleeve 16 is threaded with screws, which are fitted into the insertion holes 18.

[0035] In this technical solution, during installation, the position of the movable rod 17 can be adjusted by the cooperation of the insertion hole 18 and the screw. The adjustment can be made according to the thickness of the flange so that when the pressure plate 20 is attached to the pressure plate 20, if the flange becomes loose and shifts relative to the pressure plate 20, the flange pushes the pressure plate 20 and drives the guide rod 19 to move. The guide rod 19 drives the pressure sensor 22 to press against the inside of the movable rod 17. At this time, the pressure sensor 22 monitors the pressure. When the value monitored by the pressure sensor 22 changes, it indicates that the flange connection position is loose.

[0036] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A device for monitoring loosening of flanged pipe connections on an oil tanker, comprising a flange connected to a pipe (1) and flange bolts (2) installed on the edge of the flange, wherein connecting plates (3) are provided on the surface of the pipe (1) located on both sides of the flange, characterized in that, One end of the connecting plate (3) is fixedly connected to a first clamp (4), and the other end of the connecting plate (3) is provided with a second clamp (7), and the second clamp (7) is connected to the end of the connecting plate (3) through a translation mechanism; One end of the connecting plate (3) is fixedly connected to a metal plate (10). The metal plate (10) is located on one side of the first clamp (4). The metal plate (10) is provided with a plurality of evenly distributed first monitoring mechanisms, and the first monitoring mechanisms are distributed corresponding to the flange bolts (2). The other end of the connecting plate (3) is fixedly connected to a second monitoring mechanism, and the second monitoring mechanism is in contact with the flange sidewall.

2. The oil tanker flange connection pipeline loosening monitoring device as described in claim 1, characterized in that: The connecting plate (3) has a U-shaped structure and flanges at both ends. The flange at one end of the connecting plate (3) is in contact with the surface of the pipe (1). Two symmetrically distributed first clamps (4) are provided at one end of the connecting plate (3).

3. The oil tanker flange connection pipeline loosening monitoring device as described in claim 2, characterized in that: The other end of the connecting plate (3) is provided with two symmetrically distributed second clamps (7). The two second clamps (7) are respectively connected to both sides of the translation mechanism. The translation mechanism includes a bonding plate (6) and a limiting block (5). The two sides of the bonding plate (6) are respectively fixedly connected to the second clamps (7). The bonding plate (6) is bonded to the surface of the pipe (1). The limiting block (5) is fixedly connected to the end of the connecting plate (3). The limiting block (5) is slidably connected to the groove opened on the side end of the bonding plate (6).

4. The oil tanker flange connection pipeline loosening monitoring device as described in claim 1, characterized in that: The first clamp (4) and the second clamp (7) are both inserted through the screw (8), and the end of the screw (8) is threaded with a nut (9).

5. The oil tanker flange connection pipeline loosening monitoring device as described in claim 1, characterized in that: The number of metal plates (10) is two. Both metal plates (10) are arc-shaped and symmetrically arranged on both sides of the pipe (1). Each metal plate (10) is provided with multiple evenly distributed positioning holes (11).

6. The oil tanker flange connection pipeline loosening monitoring device as described in claim 1, characterized in that: The first monitoring mechanism includes an annular plate (12) and an identification camera (13). The annular plate (12) is attached to the side wall of the metal plate (10). The identification camera (13) is fixedly connected to the annular plate (12), and the identification camera (13) is distributed correspondingly to the flange bolts (2).

7. The oil tanker flange connection pipeline loosening monitoring device as described in claim 6, characterized in that: The annular plate (12) is fixedly connected to two studs (14), both studs (14) are inserted through the positioning hole (11), and each stud (14) is threadedly connected to the knob (15).

8. The oil tanker flange connection pipeline loosening monitoring device as described in claim 1, characterized in that: The second monitoring mechanism includes a movable rod (17), a guide rod (19) and a pressure plate (20). The guide rod (19) is movably sleeved inside the movable rod (17). One end of the guide rod (19) is fixedly connected to the pressure plate (20). The other end of the guide rod (19) is connected to a pressure sensor (22), and the pressure sensor (22) is in contact with the inside of the movable rod (17).

9. The oil tanker flange connection pipeline loosening monitoring device as described in claim 8, characterized in that: The pressure plate (20) is in contact with the flange sidewall. The pressure plate (20) is connected to the end of the movable rod (17) through the return spring (21), and the return spring (21) is sleeved with the guide rod (19).

10. The oil tanker flange connection pipeline loosening monitoring device as described in claim 8, characterized in that: The movable rod (17) is inserted through one end of the connecting plate (3). The side wall of the connecting plate (3) is fixedly connected to the connecting sleeve (16). The movable rod (17) is movably sleeved into the inside of the connecting sleeve (16). The movable rod (17) has multiple evenly distributed insertion holes (18). The connecting sleeve (16) is threaded with screws, and the screws are fitted and inserted into the insertion holes (18).

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