LNG storage tank gas leakage detection device

Abstract

The utility model provides an LNG storage tank gas leakage detection device, and relates to the technical field of LNG storage tank gas leakage detection, the LNG storage tank gas leakage detection device is provided with a fixing assembly, a plurality of clamping pieces used for clamping a storage tank body, and an anti-skid pad can improve the anti-skid performance of the clamping side of the clamping pieces and can prevent the clamping pieces from causing the wear of the storage tank body, and in the detection process, the detection efficiency is improved. The storage tank body is limited and fixed, the storage tank body is not prone to displacement, and the accuracy of a final detection result is improved; the clamping distance between the two sets of fixing assemblies can be conveniently adjusted, and the clamping device can adapt to limiting and fixing of storage tanks of different specifications and sizes; according to the utility model, the distance between the detector and the storage tank body is adjusted by adjusting the relative position between the adjusting rod and the adjusting groove, so that the detector is close to the storage tanks with different specifications and sizes, the detector can finally adapt to the detection of the storage tanks with different specifications and sizes, and the applicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LNG storage tank leakage detection, in particular to a LNG storage tank leakage detection device. Background Art

[0002] LNG, or liquefied natural gas, is primarily composed of methane and is recognized as the cleanest fossil energy source on Earth. LNG storage tanks are specialized products or equipment for storing liquefied natural gas. After filling the tank with LNG, the entire tank must undergo a safety test for airtightness to prevent leaks.

[0003] The existing technology has the following deficiencies: In the "A Natural Gas Tank Leakage Detection Device" with application number 202323182635.1 in the existing technology, by setting a lifting assembly, a rotating assembly, etc., it has the effect of improving the untimely detection of natural gas tank leakage. However, the above-mentioned device simply places the tank body on the rotating assembly, and does not have a structure to limit and fix the tank body. During the rotation of the rotating assembly, it is easy to cause the tank body to be excessively displaced or even detached from the rotating assembly, thereby affecting the final detection effect. Moreover, the above-mentioned device can usually only adapt to the detection of tanks of a certain size, and cannot adapt to the detection of tanks of different sizes at the same time. The applicability of the equipment can be further improved. Utility Model Content

[0004] The purpose of the present invention is to provide an LNG tank leakage detection device to solve the above-mentioned problems in the prior art, which can fix the tank body and adapt to tanks of different specifications and sizes.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] The utility model provides an LNG storage tank leakage detection device, comprising a base and a mounting plate and a turntable mounted side by side on the base, wherein the mounting plate is used to set a detector, and the turntable is used to set a storage tank body, and the turntable and the base are connected by a rotating rod, and the rotating rod is driven by a reduction motor to rotate the storage tank body around the axis of the rotating rod;

[0007] The turntable is provided with a fixing assembly to fix the storage tank body, the fixing assembly includes at least two fixing plates evenly distributed on the edge of the upper surface of the turntable, and clamping members are respectively provided on opposite surfaces of the fixing plates, and the clamping members are used to accommodate the storage tank body. At least one of the clamping members and the fixing plate is connected by an adjustment assembly, and the adjustment assembly is used to change the distance between the corresponding clamping member and the fixing plate;

[0008] The mounting plate extends in a vertical direction, and a first threaded rod extending in the same direction as the mounting plate is provided on one side of the mounting plate. A moving block is engaged with the outer periphery of the first threaded rod, and the moving block is slidably connected to the mounting plate. The threaded rod is driven to rotate by a driving motor so that the moving block moves up and down along the first threaded rod, and a detector is provided on the side of the moving block facing the turntable.

[0009] Optionally, the sliding block is provided with adjustment slots on both sides relative to the first threaded rod, and the sliding block is provided with adjustment rods relative to the adjustment slots, and the adjustment rods extend into the adjustment slots;

[0010] The relative positions of the adjusting rod and the adjusting slot are fixed by a fixing structure, and the distance between the detector and the tank body can be adjusted by adjusting the relative positions between the adjusting rod and the adjusting slot.

[0011] Optionally, the fixing structure includes:

[0012] threaded holes respectively provided on the sliding block and the adjusting rod, wherein the threaded holes on the sliding block are perpendicular to and pass through the adjusting slot;

[0013] A fixing bolt, one end of which is threadedly connected to the threaded hole on the moving block and any one of the threaded holes on the adjusting rod.

[0014] Optionally, the adjustment assembly includes a second threaded rod connecting the clamping member and the fixing plate, the second threaded rod passes through the fixing plate and engages with the fixing plate, and the second threaded rod is provided with a handle at one end of the fixing plate away from the clamping member.

[0015] Optionally, an accommodating cavity is formed inside the clamping member, one end of the second threaded rod passes through the side wall of the clamping member and extends into the accommodating cavity where a stopper is provided. The stopper is movably installed in the accommodating cavity to drive the second threaded rod to rotate relative to the clamping member through the handle.

[0016] Optionally, the surface of the clamping member facing the storage tank body is a curved surface, and the curved surface matches the outer surface of the storage tank body;

[0017] An anti-slip pad is provided on the arc surface.

[0018] Optionally, the reduction motor is arranged above the base, and gears are sleeved on the rotating rod and the output shaft of the reduction motor, and the two gears are engaged with each other to drive the rotating rod to rotate through the reduction gear.

[0019] Optionally, the top of the mounting plate is bent toward a horizontal plane so that the driving motor can be fixed through the bent end of the top of the mounting plate.

[0020] Optionally, a limiting groove is provided on the mounting plate toward one side of the sliding block, the limiting groove and the first threaded rod extend in the same direction, a limiting block matching the limiting groove is provided on the sliding block, and the limiting block is placed in the limiting groove to limit the sliding direction of the sliding block.

[0021] The beneficial effects of the LNG tank leakage detection device provided by the utility model include: 1) by setting a fixing component, a plurality of clamping parts are used to clamp the tank body, and the anti-slip pad can improve the anti-slip property of the clamping side of the clamping part and prevent the clamping part from causing wear of the tank body. During the detection process, the tank body is limited and fixed, and the tank body is not easily displaced, which improves the accuracy of the final detection result; 2) the clamping spacing between the two groups of fixing components can be easily adjusted, which can adapt to the limit fixation of tanks of different specifications and sizes; 3) by adjusting the relative position between the adjusting rod and the adjusting slot to adjust the distance between the detector and the tank body, the detector can be brought close to tanks of different specifications and sizes, and finally it can adapt to the detection of tanks of different specifications and sizes, thereby improving the applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is one of the structural schematic diagrams of an LNG tank leakage detection device provided in an embodiment of the present application;

[0024] Figure 2 Provided in the embodiments of this application Figure 1 A schematic diagram of the structure enlarged in the middle;

[0025] Figure 3 A schematic structural diagram of a moving block of an LNG tank leakage detection device provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of a detector for an LNG tank leakage detection device provided in an embodiment of the present application;

[0027] Figure 5 A schematic structural diagram of a clamping member of an LNG tank leakage detection device provided in an embodiment of the present application.

[0028] Icons: 1. Base; 2. Mounting plate; 3. Drive motor; 4. First threaded rod; 5. Turntable; 6. Turntable; 7. Fixing assembly; 701. Fixing plate; 702. Second threaded rod; 703. Clamping piece; 704. Anti-slip pad; 705. Handle; 706. Stop block; 8. Moving block; 9. Detector; 10. Adjusting rod; 11. Adjusting slot; 12. Threaded hole; 13. Fixing bolt; 14. Limiting slot; 15. Limiting block; 16. Reduction motor; 17. Gear; 18. Tank body. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0030] When detecting tank leaks, existing equipment simply places the tank body on a rotating assembly. It lacks a structure to limit and fix the tank body. This can easily cause the tank body to excessively shift or even detach from the rotating assembly during rotation, thus affecting the final detection effect. Furthermore, the device is typically only suitable for detecting tanks of a certain size and cannot simultaneously detect tanks of different sizes. To address the above issues, an embodiment of the present application provides an LNG tank leak detection device that can fix the tank body 18 and accommodate tank bodies 18 of different sizes.

[0031] like Figure 1 and Figure 2As shown, Example 1 of the present application provides an LNG tank leakage detection device, including a base 1 and a mounting plate 2 and a turntable 6 mounted side by side on the base 1, the mounting plate 2 is used to set the detector 9, the turntable 6 is used to set the tank body 18, the turntable 6 and the base 1 are connected by a rotating rod 5, and the rotating rod 5 is driven by a reduction motor 16 to rotate the tank body 18 around the axis of the rotating rod 5; a fixing assembly 7 is provided on the turntable 6 to fix the tank body 18, and the fixing assembly 7 includes at least two fixing plates 701 evenly distributed on the edge of the upper surface of the turntable 6, and clamping members 703 are respectively provided on the opposite surfaces of the fixing plates 701. The tank body 18 is accommodated between the clamping members 703, and at least one clamping member 703 is connected to the fixed plate 701 by an adjusting assembly, and the adjusting assembly is used to change the distance between the corresponding clamping member 703 and the fixed plate 701; the mounting plate 2 extends in the vertical direction, and a first threaded rod 4 extending in the same direction as the mounting plate 2 is provided on one side of the mounting plate 2, and a moving block 8 is engaged with the outer periphery of the first threaded rod 4, and the moving block 8 is slidingly connected to the mounting plate 2, and the first threaded rod 4 is driven to rotate by the driving motor 3 so that the moving block 8 moves up and down along the first threaded rod 4, and a detector 9 is provided on the side of the moving block 8 facing the turntable 6.

[0032] In the embodiments of this application, Figure 1 There are two fixing plates 701 , which are respectively arranged at opposite ends of the upper surface of the turntable 6 . Clamping members 703 are respectively provided on opposite surfaces of the fixing plates 701 , and the clamping members 703 are connected to the fixing plates 701 through adjustment components.

[0033] Specifically, such as Figure 2 、 Figure 3 and Figure 4 As shown, the moving block 8 is provided with adjustment grooves 11 on both sides relative to the first threaded rod 4, and the moving block 8 is provided with an adjustment rod 10 relative to the adjustment groove 11. The adjustment rod 10 is extended into the adjustment groove 11, and the distance between the detector 9 and the tank body 18 is adjusted by adjusting the relative position between the adjustment rod 10 and the adjustment groove 11; the relative position of the adjustment rod 10 and the adjustment groove 11 is fixed by a fixing structure.

[0034] Specifically, the fixing structure includes: threaded holes 12 respectively arranged on the moving block 8 and the adjusting rod 10, the threaded hole 12 on the moving block 8 is vertical and passes through the adjusting slot 11; a fixing bolt 13, one end of the fixing bolt 13 is threadedly connected to the threaded hole 12 on the moving block 8 and any one of the threaded holes 12 on the adjusting rod 10 in sequence.

[0035] Specifically, the adjustment assembly includes a second threaded rod 702 connecting the clamping member 703 and the fixed plate 701. The second threaded rod 702 passes through the fixed plate 701 and engages with the fixed plate 701. The second threaded rod 702 is located at one end of the fixed plate 701 away from the clamping member 703 and is provided with a handle 705.

[0036] Specifically, an accommodating cavity is formed inside the clamping member 703, one end of the second threaded rod 702 passes through the side wall of the clamping member 703 and extends into the accommodating cavity where a stopper 706 is provided. The stopper 706 is movably installed in the accommodating cavity to drive the second threaded rod 702 to rotate relative to the clamping member 703 through the handle 705. The stopper 706 is used to prevent the second threaded rod 702 from falling out of the accommodating cavity.

[0037] Specifically, the surface of the clamping member 703 facing the storage tank body 18 is a curved surface, which matches the outer surface of the storage tank body 18; an anti-slip pad 704 is provided on the curved surface. In the embodiment of the present application, the specific material of the anti-slip pad 704 is soft silicone.

[0038] like Figure 5 As shown, during the clamping process, the arc surface of the clamping member 703 matches the outer surface of the tank body 18, and the handle 705 is rotated to rotate the second threaded rod 702 to adjust the distance between the clamping member 703 and the fixed plate 701, and the clamping member 703 will not rotate with the second threaded rod 702.

[0039] Specifically, the reduction motor 16 is arranged above the base 1 , and gears 17 are sleeved on the rotating rod 5 and the output shaft of the reduction motor 16 , and the two gears 17 are engaged with each other to drive the rotating rod 5 to rotate through the reduction motor 16 .

[0040] Specifically, the top of the mounting plate 2 is bent toward the horizontal plane, so that the driving motor 3 can be fixed through the bent end of the top of the mounting plate 2 .

[0041] Specifically, a limiting groove 14 is provided on the side of the mounting plate 2 facing the moving block 8, and the limiting groove 14 extends in the same direction as the first threaded rod 4. A limiting block 15 matching the limiting groove 14 is provided on the moving block 8. The limiting block 15 is placed in the limiting groove 14 to limit the sliding direction of the moving block 8. The limiting block 15 combined with the limiting groove 14 can prevent the moving block 8 from rotating with the rotation of the first threaded rod 4.

[0042] The working principle and usage process of the embodiment of the present application are as follows: the storage tank body 18 is placed on the turntable 6, and the two sets of handles 705 are rotated in sequence so that the two sets of clamping members 703 are respectively attached to the two sides of the bottom end of the storage tank body 18. The anti-slip pad 704 can improve the anti-slip property of the clamping side of the clamping member 703 and prevent the clamping member 703 from causing wear of the storage tank body 18; the two sets of bolts 13 are rotated in sequence so that the threaded ends of the two sets of bolts 13 are disengaged from the adjusting rod 10 and are located in the threaded holes 12 of the moving block 8. At this time, the bolts 13 do not limit the adjusting rod 10, and the detector 9 is moved so that the detector 9 is close to the storage tank body 18. The two sets of bolts 13 are rotated so that the two sets of bolts 13 are threadedly connected to the closest one on the adjusting rod 10. The adjusting rod 10 can be limited by the bolt 13 in the threaded hole 12 of the group, and the position of the adjusting rod 10 and the detector 9 are fixed; the driving motor 3 and the reduction motor 16 are started, and the driving motor 3 can drive the moving block 8 to move up and down, and then drive the detector 9 to move up and down, and the reduction motor 16 can drive the rotating rod 5 to rotate slowly, and then drive the tank body 18 on the turntable 6 to rotate slowly, which can facilitate the detector 9 to detect different positions of the tank body 18. At the later stage, the parts blocked by the two groups of fixed components 7 can be tested separately to complete the whole detection of the tank body 18. Moreover, since the fixed component 7 is narrow and the blocking range is small, it is simple and easy to implement to detect the blocked part separately.

[0043] The present invention provides an LNG tank leakage detection device: 1) by setting a fixing component 7, a plurality of clamping parts 703 are used to clamp the tank body 18, and the anti-slip pad 704 can improve the anti-slip property of the clamping side of the clamping part 703 and prevent the clamping part 703 from causing wear of the tank body 18. During the detection process, the tank body 18 is limited and fixed, and the tank body 18 is not easy to move, thereby improving the accuracy of the final detection result; 2) the clamping spacing between the two groups of fixing components 7 can be easily adjusted, which can adapt to the limit fixation of tanks of different specifications and sizes; 3) by adjusting the relative position between the adjusting rod 10 and the adjusting slot 11 to adjust the distance between the detector 9 and the tank body 18, the detector 9 is brought close to tanks of different specifications and sizes, and finally can adapt to the detection of tanks of different specifications and sizes, thereby improving the applicability of the equipment.

[0044] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An LNG storage tank gas leakage detection device, comprising a base (1) and a mounting plate (2) and a turntable (6) mounted side by side on the base (1), wherein the mounting plate (2) is used to set a detector (9), and the turntable (6) is used to set a storage tank body (18), characterized in that: The turntable (6) and the base (1) are connected via a rotating rod (5), and the rotating rod (5) is driven by a reduction motor (16) to rotate the storage tank body (18) around the axis of the rotating rod (5); A fixing assembly (7) is provided on the turntable (6) to fix the storage tank body (18), the fixing assembly (7) comprising at least two fixing plates (701) evenly distributed on the edge of the upper surface of the turntable (6), clamping members (703) are respectively provided on opposite surfaces of the fixing plates (701), and the clamping members (703) are used to accommodate the storage tank body (18), at least one of the clamping members (703) and the fixing plate (701) is connected via an adjustment assembly, and the adjustment assembly is used to change the distance between the corresponding clamping member (703) and the fixing plate (701); The mounting plate (2) extends in a vertical direction. A first threaded rod (4) extending in the same direction as the mounting plate (2) is provided on one side of the mounting plate (2). A moving block (8) is engaged with the outer periphery of the first threaded rod (4). The moving block (8) is slidably connected to the mounting plate (2). The first threaded rod (4) is driven to rotate by a driving motor (3) so that the moving block (8) moves up and down along the first threaded rod (4). A detector (9) is provided on the side of the moving block (8) facing the turntable (6).

2. The LNG storage tank leakage detection device according to claim 1, characterized in that: The movable block (8) is provided with adjustment slots (11) on both sides relative to the first threaded rod (4), and the movable block (8) is provided with an adjustment rod (10) relative to the adjustment slot (11), and the adjustment rod (10) is extended into the adjustment slot (11); The relative positions of the adjusting rod (10) and the adjusting slot (11) are fixed by a fixing structure, and the distance between the detector (9) and the storage tank body (18) is adjusted by adjusting the relative position between the adjusting rod (10) and the adjusting slot (11).

3. The LNG tank leakage detection device according to claim 2, characterized in that: The fixed structure includes: threaded holes (12) respectively provided on the moving block (8) and the adjusting rod (10), wherein the threaded holes (12) on the moving block (8) are perpendicular to and penetrate the adjusting slot (11); A fixing bolt (13), one end of which is threadedly connected to the threaded hole (12) on the moving block (8) and any one of the threaded holes (12) on the adjusting rod (10) in sequence.

4. The LNG tank leakage detection device according to claim 1, characterized in that: The adjustment assembly includes a second threaded rod (702) connecting the clamping member (703) and the fixing plate (701), the second threaded rod (702) passes through the fixing plate (701) and engages with the fixing plate (701), and a handle (705) is provided at one end of the fixing plate (701) away from the clamping member (703).

5. The LNG tank leakage detection device according to claim 4, characterized in that: An accommodating cavity is formed inside the clamping member (703), one end of the second threaded rod (702) passes through the side wall of the clamping member (703) and extends into the accommodating cavity where a stopper (706) is provided. The stopper (706) is movably installed in the accommodating cavity to drive the second threaded rod (702) to rotate relative to the clamping member (703) through the handle (705).

6. The LNG storage tank gas leakage detection device according to claim 1, characterized in that: The surface of the clamping member (703) facing the storage tank body (18) is a curved surface, and the curved surface matches the outer surface of the storage tank body (18); An anti-slip pad (704) is provided on the arc surface.

7. The LNG tank leakage detection device according to claim 1, characterized in that: The reduction motor (16) is arranged above the base (1), and the output shafts of the rotating rod (5) and the reduction motor (16) are both sleeved with gears (17), and the two gears (17) are engaged with each other to drive the rotating rod (5) to rotate through the reduction motor (16).

8. The LNG storage tank gas leakage detection device according to claim 1, characterized in that: The top of the mounting plate (2) is bent toward the horizontal plane so that the drive motor (3) can be fixed through the bent end of the top of the mounting plate (2).

9. The LNG tank leakage detection device according to claim 1, characterized in that: The mounting plate (2) is provided with a limiting groove (14) on one side facing the moving block (8), the limiting groove (14) and the first threaded rod (4) extend in the same direction, the moving block (8) is provided with a limiting block (15) matching the limiting groove (14), and the limiting block (15) is placed in the limiting groove (14) to limit the sliding direction of the moving block (8).

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