Sealing performance detection device for petrochemical inspection storage tank

Abstract

The utility model discloses a petrochemical inspection storage tank sealing performance detection device, which belongs to the technical field of petrochemical engineering and comprises a petrochemical storage tank, a detection device, a detection device and a control device, and is characterized in that the top of each pipe orifice is provided with a detachable top cover; the sealing performance detection mechanism is arranged above the pipe orifice and the detachable top cover in a covering mode and used for detecting the sealing performance of the pipe orifice, and the sealing performance detection mechanism comprises a sleeve part arranged on the peripheral side of the pipe orifice in a sleeving mode, an air leakage testing part arranged in an inner cavity of the sleeve part and a detection marking assembly arranged on the upper portion of the inner cavity of the sleeve part; the air leakage testing component comprises a fixing ring arranged in the inner cavity of the sleeve piece and foam lines which are densely connected to the bottom surface of the fixing ring in an annular array mode, and the foam lines are located on the peripheral side of the joint of the pipe opening and the detachable top cover and used for detecting air leakage of the pipe opening; and the detection marking assembly marks an air leakage position on the top surface of the detachable top cover by driving a marking pen. According to the utility model, a plurality of pipe orifices can be rapidly detected, and the detection time is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of petrochemicals, in particular to a petrochemical storage tank sealing detection device. Background Art

[0002] In the petrochemical industry, storage tanks are critical facilities for storing various liquid and gaseous raw materials. To ensure production safety and environmental protection, regular testing of tank sealing performance is crucial. Traditional methods for testing tank sealing performance typically require installing testing equipment inside the tank.

[0003] However, this inspection method has the following major problems: after inspecting one pipe opening each time, if you want to move to the next pipe opening to continue inspection, you must use tools to remove the bolts, disassemble and reinstall the inspection equipment, which is a cumbersome and time-consuming process.

[0004] A search revealed a petrochemical storage tank sealing detection device with the existing Chinese patent publication number CN221302650U, including a top cover, a positioning mechanism disposed inside the top cover, and a detection mechanism disposed at the bottom of the top cover. The positioning mechanism includes a moving assembly and an adjustment assembly, the moving assembly disposed inside the top cover, and the adjustment assembly disposed outside the moving assembly. The moving assembly includes a motor, which is fixedly connected to the top of the top cover. The output end of the motor is fixedly connected to a first gear, the exterior of the first gear is meshed with a second gear, and the interior of the second gear is fixedly connected to a bidirectional screw, which is rotatably connected to the interior of the top cover and is used to move the position of the limiting hollow cylinder.

[0005] The cited patent document also has the same problem. If you want to move to the next pipe opening to continue testing, you must use tools to remove the bolts, disassemble and reinstall the testing equipment, which is a cumbersome and time-consuming process. Utility Model Content

[0006] The purpose of the utility model is to provide a petrochemical storage tank sealing detection device to solve the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a petrochemical storage tank sealing detection device, comprising:

[0008] A petrochemical storage tank, used to hold petrochemical raw materials and having a plurality of nozzles on the top, each of which has a detachable top cover;

[0009] A sealing detection mechanism is provided above the pipe opening and the removable top cover for detecting the sealing of the pipe opening, and the sealing detection mechanism includes a sleeve member provided around the pipe opening, a leakage test component provided in the inner cavity of the sleeve member, and a detection mark assembly provided on the upper part of the inner cavity of the sleeve member;

[0010] Among them, the air leakage testing component includes a fixed ring arranged in the inner cavity of the sleeve and a ring-shaped array of foam lines densely connected to the bottom surface of the fixed ring. The foam lines are located on the peripheral side of the connection between the pipe mouth and the removable top cover for detecting air leakage at the pipe mouth. The detection marking component drives the marking pen to mark the location of the air leakage on the top surface of the removable top cover.

[0011] In this solution, preferably, the outer wall of the peripheral side of the fixing ring is symmetrically fixedly connected with connecting blocks, and one end of the two connecting blocks away from the fixing ring is fixed to the inner wall of the sleeve member.

[0012] Preferably, an inspection cover is mounted on the top surface of the sleeve member by screws, a transparent top plate is embedded in the center of the top surface of the inspection cover, and a sealed bearing is longitudinally passed through the center of the top surface of the transparent top plate.

[0013] Preferably, a rotating shaft is longitudinally interference-fitted in the inner ring of the sealed bearing, the bottom end of the rotating shaft extends into the inner cavity of the sleeve member, and a rotating handwheel is fixed to the top end of the rotating shaft.

[0014] Preferably, the detection mark assembly includes an inverted U-shaped rocker arm fixedly mounted on the bottom end of the rotating shaft, an inverted L-shaped slider arranged below the U-shaped rocker arm, a positioning cross bar passing through the L-shaped slider transversely, and an electric lifting rod fixed to the bottom surface of the L-shaped slider.

[0015] This solution is preferred, where the two ends of the positioning cross bar are respectively fixed on the inner walls on both sides of the U-shaped rocker arm, so that the top surface of the L-shaped slider is tightly attached to the inner top wall of the U-shaped rocker arm, and an electric push-pull rod is horizontally installed on one of the inner walls of the U-shaped rocker arm, and the telescopic free end of the electric push-pull rod is fixed on the outer wall of the L-shaped slider.

[0016] In this solution, a base plate is fixed to the bottom lifting end of the electric lifting rod, and the marking pen is vertically embedded in the base plate. The top surface of the U-shaped swing arm has a junction box, which contains a battery that supplies power to the electric lifting rod and the electric push-pull rod.

[0017] Preferably, a matching base plate is fixed to the bottom surface of the sleeve member, and the side of the matching base plate facing away from the sleeve member matches the peripheral outer wall of the petrochemical storage tank and a silicone sealing gasket in contact with the outer wall of the petrochemical storage tank is bonded to its bottom surface.

[0018] In this solution, a transparent side panel is embedded in the circumference of the sleeve member, and the transparent side panel is located at the connection between the nozzle and the detachable top cover, so as to observe whether the foam line is blown up by the leaked gas.

[0019] Preferably, handles are symmetrically fixed on both sides of the top surface of the matching bottom plate, a support base is fixed on the bottom surface of the petrochemical storage tank, and an inspection platform is provided at the back of the petrochemical storage tank.

[0020] Compared with the prior art, the technical effects and advantages of this utility model are:

[0021] This petrochemical tank sealing test device, with its sleeve and leak test components working together, can fully cover and test the sealing of every pipe opening and its connections, ensuring that no leaks are missed. The presence of foam lines provides a simple and effective means of visually displaying the location of leaks, making it easy to understand even for non-professionals. Traditional sealing tests typically require manual point-by-point inspections, and may require multiple repetitions to ensure accuracy. However, the sealing test mechanism in this technical solution can quickly test multiple pipe openings, reducing testing time.

[0022] The setting of the detection marking component can mark the leak immediately when it is detected, avoiding marking errors caused by unclear memory and improving work efficiency.

[0023] As part of the leak test component, the foam line can very intuitively show the location of the leak, and even the smallest leak can be accurately captured. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 This is a schematic diagram of the installation structure of the detection mark assembly of the present utility model;

[0027] Figure 3 This is a schematic diagram of the disassembly structure of the air leakage test component of the present utility model;

[0028] Figure 4 This is a schematic diagram of the connection structure of the L-shaped slider of the utility model;

[0029] Figure 5 This is a schematic diagram of the installation structure of the foam line of the present invention.

[0030] Description of reference numerals:

[0031] In the figure: 1. Petrochemical storage tank; 2. Support base; 3. Removable top cover; 4. Inspection platform; 5. Sealing detection mechanism; 6. Matching bottom plate; 7. Sleeve piece; 8. Handle; 9. Inspection top cover; 10. Transparent top plate; 11. Transparent side panel; 12. Detection mark assembly; 13. Silicone sealing gasket; 14. Fixing ring; 15. Leakage test component; 16. Sealed bearing; 17. Rotating shaft; 18. U-shaped rocker arm; 19. Rotating handwheel; 20. L-shaped slider; 21. Electric lifting rod; 22. Base plate; 23. Marking pen; 24. Electric push-pull rod; 25. Positioning cross bar; 26. Junction box; 27. Foam line; 28. Connecting block. DETAILED DESCRIPTION

[0032] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0033] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0034] This embodiment provides Figures 1 to 5 The petrochemical storage tank sealing detection device shown includes: a petrochemical storage tank 1 and a sealing detection mechanism 5.

[0035] In this embodiment, the petrochemical storage tank 1 is used to contain petrochemical raw materials and has multiple pipe openings on its top, each of which has a removable top cover 3; the sealing detection mechanism 5 is covered above the pipe opening and the removable top cover 3 for detecting the airtightness of the pipe opening, and the sealing detection mechanism 5 includes a sleeve member 7 sleeved on the periphery of the pipe opening, a leakage test component 15 arranged in the inner cavity of the sleeve member 7, and a detection mark assembly 12 arranged on the upper part of the inner cavity of the sleeve member 7; the sleeve member 7 is covered above the pipe opening to form a closed space for sealing detection.

[0036] In this embodiment, the air leakage test component 15 comprises a retaining ring 14 disposed within the inner cavity of the sleeve member 7 and an annular array of foam lines 27 densely connected to the bottom surface of the retaining ring 14. The foam lines 27 are located around the connection between the nozzle and the removable top cover 3 to detect air leaks at the nozzle. The detection marking assembly 12 activates a marking pen 23 to mark the location of the leak on the top surface of the removable top cover 3. The marking pen 23 performs the actual marking action, drawing a line on the surface of the removable top cover 3 after the leak point is found. The foam lines 27 are preferably made of polystyrene, which is easily blown up by leaking gas, thereby visually indicating the leak location.

[0037] In this embodiment, the outer wall of the circumference of the fixing ring 14 is symmetrically fixedly connected with connecting blocks 28 , and one end of the two connecting blocks 28 away from the fixing ring 14 is fixed to the inner wall of the sleeve member 7 .

[0038] In this embodiment, an inspection cover 9 is screwed onto the top surface of the sleeve member 7. A transparent top plate 10 is embedded in the center of the top surface of the inspection cover 9. A sealed bearing 16 extends longitudinally through the center of the top surface of the transparent top plate 10. The transparent top plate 10, mounted on the inspection cover 9, allows the operator to directly observe the interior of the sleeve member 7, particularly the condition of the foam lines 27. A transparent side panel 11 is embedded in the side of the sleeve member 7, also allowing the operator to clearly see the condition of the pipe connection.

[0039] In this embodiment, a rotating shaft 17 is longitudinally interference-fitted in the inner ring of the sealed bearing 16 . The bottom end of the rotating shaft 17 extends into the inner cavity of the sleeve member 7 , and a rotating handwheel 19 is fixed to the top end of the rotating shaft 17 .

[0040] In this embodiment, the detection mark assembly 12 includes an inverted U-shaped rocker arm 18 fixedly mounted at the bottom end of the rotating shaft 17, an inverted L-shaped slider 20 arranged below the U-shaped rocker arm 18, a positioning cross bar 25 that passes through the L-shaped slider 20 horizontally, and an electric lifting rod 21 fixed to the bottom surface of the L-shaped slider 20.

[0041] In this embodiment, the two ends of the positioning cross bar 25 are respectively fixed on the inner walls on both sides of the U-shaped rocker arm 18, so that the top surface of the L-shaped slider 20 is close to the inner top wall of the U-shaped rocker arm 18. An electric push-pull rod 24 is horizontally installed on one of the inner walls of the U-shaped rocker arm 18, and the telescopic free end of the electric push-pull rod 24 is fixed on the outer wall of the L-shaped slider 20.

[0042] In this embodiment, a base plate 22 is fixed to the bottom lifting end of the electric lift rod 21, and a marking pen 23 is vertically embedded in the base plate 22. The top surface of the U-shaped swing arm 18 has a junction box 26, which contains a battery that supplies power to the electric lift rod 21 and the electric push-pull rod 24.

[0043] In this embodiment, a matching base plate 6 is fixed to the bottom surface of the sleeve member 7, and the side of the matching base plate 6 facing away from the sleeve member 7 matches the peripheral outer wall of the petrochemical storage tank 1 and a silicone sealing gasket 13 in contact with the outer wall of the petrochemical storage tank 1 is bonded to its bottom surface.

[0044] In this embodiment, a transparent side panel 11 is embedded in the circumference of the sleeve member 7, and the transparent side panel 11 is located at the connection between the pipe mouth and the detachable top cover 3, so as to observe whether the foam line 27 is blown up by the leaked gas.

[0045] In this embodiment, handles 8 are symmetrically fixed on both sides of the top surface of the matching base plate 6, a support base 2 is fixed on the bottom surface of the petrochemical storage tank 1, and an inspection platform 4 is provided behind the petrochemical storage tank 1. When it is necessary to detect whether there is a gas leak between the pipe mouth and the removable top cover 3, climb onto the inspection platform 4, hold the handle 8, and cover the matching base plate 6 on the pipe mouth and the removable top cover 3 so that the silicone sealing gasket 13 of the matching base plate 6 contacts the outer wall of the petrochemical storage tank 1 to ensure the internal sealing of the sleeve part 7. At this time, the sleeve part 7 covers the pipe mouth, and a circle of foam lines 27 inside the sleeve part 7 is located at the connection between the pipe mouth and the removable top cover 3. Observe the circle of foam lines 27 through the transparent top plate 10 and the transparent side plate 11 to see if the leaked gas has blown up. If the foam lines 27 are blown up, it means that the airtightness is poor and there is a leakage point. At this point, rotating handwheel 19 drives shaft 17, driven by sealed bearing 16, which in turn rotates U-shaped rocker 18. The end of U-shaped rocker 18, away from shaft 17, points toward the leak point, where foam line 27 is blown up. At this point, the buttons on the external operating panel (not shown) activate the electric push-pull rod 24 and electric lift rod 21. The electric lift rod 21 lowers the marking pen 23, causing the pen tip to contact the top surface of the removable top cover 3. The electric push-pull rod 24 pushes and pulls the L-shaped slider 20 in a linear motion, causing the marking pen 23 to draw a straight line to mark the leak point. After marking, handle 8 is used to remove the matching base plate 6 and proceed to the next pipe opening for inspection.

[0046] Working principle:

[0047] This petrochemical tank sealing test device ensures that the petrochemical tank 1 has stopped operating and the internal pressure has been released to a safe level. The operator then steps onto the inspection platform 4 and prepares to begin testing. Holding the handle 8 on the mating base plate 6, the mating base plate 6 is aligned with the pipe opening to be tested and the removable top cover 3. The mating base plate 6 is placed on the petrochemical tank 1, ensuring that the silicone sealing gasket 13 fits tightly against the outer wall of the petrochemical tank 1 to form a good seal. The pipe opening is covered with a sleeve 7, so that the foam line 27 is located exactly at the connection between the pipe opening and the removable top cover 3.

[0048] The status of the foam lines 27 can be observed through the transparent top panel 10 and side panels 11. By pressurizing the nozzle or using other methods to create an internal pressure differential, if a leak is present, the leaking gas will blow up the foam lines 27. If foam lines 27 are blown up by the gas, it indicates a leak. By rotating the handwheel 19, the shaft 17 rotates accordingly, driving the U-shaped swing arm 18 toward the leak point. One end of the U-shaped swing arm 18 will point to the location of the blown foam lines 27, thereby pinpointing the leak's location.

[0049] The electric lifting rod 21 is activated through the external operation panel to lower it, so that the marking pen 23 in the base plate 22 contacts the surface of the removable top cover 3. At the same time, the electric push-pull rod 24 is activated to push the L-shaped slider 20 to move linearly along the positioning crossbar 25, driving the marking pen 23 to draw a straight line on the removable top cover 3, clearly marking the location of the leak.

[0050] After marking is completed, turn off all power supplies, retract the electric lifting rod 21 and the electric push-pull rod 24, hold the handle 8 again, remove the matching base plate 6 and the entire sealing detection mechanism 5. Check the next pipe opening and repeat the above steps until all pipe openings that need to be tested have been checked.

[0051] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0052] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A petrochemical storage tank sealing detection device, characterized in that: include: A petrochemical storage tank (1) is used to contain petrochemical raw materials and is provided with a plurality of nozzles on the top thereof, each nozzle having a detachable top cover (3); A sealing detection mechanism (5) is provided above the pipe opening and the detachable top cover (3) for detecting the sealing of the pipe opening, and the sealing detection mechanism (5) comprises a sleeve member (7) sleeved around the pipe opening, a leakage test component (15) provided in the inner cavity of the sleeve member (7), and a detection mark assembly (12) provided on the upper portion of the inner cavity of the sleeve member (7); The air leakage test component (15) comprises a fixed ring (14) arranged in the inner cavity of the sleeve member (7) and an annular array of foam lines (27) densely connected to the bottom surface of the fixed ring (14). The foam lines (27) are located on the peripheral side of the connection between the pipe mouth and the detachable top cover (3) for detecting air leakage at the pipe mouth. The detection marking component (12) marks the location of the air leakage on the top surface of the detachable top cover (3) by driving the marking pen (23).

2. The petrochemical storage tank sealing detection device according to claim 1, characterized in that: The outer wall of the peripheral side of the fixing ring (14) is symmetrically fixedly connected with a connecting block (28), and one end of the two connecting blocks (28) away from the fixing ring (14) is fixed to the inner wall of the sleeve member (7).

3. The petrochemical storage tank sealing detection device according to claim 2, characterized in that: An inspection cover (9) is mounted on the top surface of the sleeve member (7) via screws. A transparent top plate (10) is embedded in the center of the top surface of the inspection cover (9). A sealed bearing (16) is longitudinally passed through the center of the top surface of the transparent top plate (10).

4. The petrochemical storage tank sealing detection device according to claim 3, characterized in that: A rotating shaft (17) is longitudinally interference-fitted in the inner ring of the sealed bearing (16), the bottom end of the rotating shaft (17) extends into the inner cavity of the sleeve member (7), and a rotating hand wheel (19) is fixed to the top end of the rotating shaft (17).

5. The petrochemical storage tank sealing detection device according to claim 4, characterized in that: The detection mark assembly (12) includes an inverted U-shaped swing arm (18) fixedly mounted on the bottom end of the rotating shaft (17), an inverted L-shaped slider (20) arranged below the U-shaped swing arm (18), a positioning crossbar (25) extending transversely through the L-shaped slider (20), and an electric lifting rod (21) fixed to the bottom surface of the L-shaped slider (20).

6. The petrochemical storage tank sealing detection device according to claim 5, characterized in that: The two ends of the positioning cross bar (25) are respectively fixed to the inner walls on both sides of the U-shaped rocker (18), so that the top surface of the L-shaped slider (20) is in close contact with the inner top wall of the U-shaped rocker (18). An electric push-pull rod (24) is horizontally installed on one of the inner walls of the U-shaped rocker (18), and the telescopic free end of the electric push-pull rod (24) is fixed to the outer wall of the L-shaped slider (20).

7. The petrochemical storage tank sealing detection device according to claim 6, characterized in that: A base plate (22) is fixed to the bottom lifting end of the electric lifting rod (21), and the marking pen (23) is vertically embedded in the base plate (22); the top surface of the U-shaped swing arm (18) has a junction box (26), and the junction box (26) has a battery, which supplies power to the electric lifting rod (21) and the electric push-pull rod (24).

8. The petrochemical storage tank sealing detection device according to claim 7, characterized in that: A matching bottom plate (6) is fixed to the bottom surface of the sleeve member (7), and a side of the matching bottom plate (6) facing away from the sleeve member (7) matches the peripheral outer wall of the petrochemical storage tank (1), and a silicone sealing gasket (13) in contact with the outer wall of the petrochemical storage tank (1) is bonded to its bottom surface.

9. The petrochemical storage tank sealing detection device according to claim 8, characterized in that: A transparent side panel (11) is embedded in the circumference of the sleeve member (7), and the transparent side panel (11) is located at the connection between the pipe mouth and the detachable top cover (3).

10. The petrochemical storage tank sealing detection device according to claim 9, characterized in that: Handles (8) are symmetrically fixed on both sides of the top surface of the matching bottom plate (6), a support base (2) is fixed on the bottom surface of the petrochemical storage tank (1), and an inspection platform (4) is provided at the back of the petrochemical storage tank (1).

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