Buoyancy tank airtightness detection device

Abstract

The utility model discloses an airtight detection device for a buoyancy tank. The airtight detection device comprises a water tank filled with water; a base; the support is located on the side portion of the water tank and fixed to the base; the driver is fixed with the bracket; the pressing assembly is driven by the driver to apply pressure to the buoyancy tank to enable the buoyancy tank to be submerged into water in the water tank, and the pressing assembly is connected with the driver; the air supply assembly is used for being connected with the buoyancy tank and inputting air into an inner cavity of the buoyancy tank. According to the utility model, airtightness detection can be carried out on the welded buoyancy tank.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical storage tanks, specifically to a floating box airtightness detection device. Background Technology

[0002] A floating roof for an oil storage tank is a floating device that covers the surface of the liquid in the tank. It floats as the liquid level rises and falls, primarily used to reduce evaporation losses of the medium inside the tank and prevent oil and gas leaks. Through buoyancy, the floating roof isolates the liquid inside the tank from the atmosphere, thereby reducing oil evaporation losses.

[0003] The floating roofs currently in use are composed of several pontoon boxes pieced together, such as Figures 1 to 3 A single floating box consists of a box body A, a central support body B, and a panel C. Box body A is formed by welding. The manufacturing process of box body A involves cutting the four corners of the sheet metal. Figure 1 Areas A1, A2, A3, and A4 outside the dotted lines are folded along the dotted lines to form a first, second, third, and fourth vertical edge. The first and second vertical edges are welded together, the second and third vertical edges are welded together, the third and fourth vertical edges are welded together, and the fourth vertical edge is welded together with the first vertical edge. This results in a box A that is closed at one end and open at the other end. After the panel C is fitted with the open end of the box A, it is fixed to the box A by welding, forming a receiving cavity between the panel C and the box A. The intermediate support B is located in the receiving cavity and fixed to the box A.

[0004] For the welding of the tank body A itself, and the welding of panel C to the tank body A, there may be welding defects, such as cracks, porosity, incomplete penetration, lack of fusion, or incomplete welding. If floating boxes with welding defects are used to assemble floating roofs, these defects will not only significantly affect the strength and safety of the welds, but also pose an extreme safety hazard to floating roofs used inside oil storage tanks, given that oil is a flammable substance. Therefore, how to inspect the quality of welded floating boxes is a current challenge. Utility Model Content

[0005] This invention provides a float box airtightness testing device, which can perform airtightness testing on welded float boxes.

[0006] The technical solutions to the above technical problems are as follows:

[0007] The float box airtightness testing device includes:

[0008] A water tank filled with water;

[0009] Base;

[0010] The bracket is located on the side of the water tank and is fixed to the base;

[0011] a driver fixed on the support;

[0012] a pressing assembly driven by the driver to press the buoy against the water in the water tank, the pressing assembly being connected with the driver;

[0013] a gas supply assembly for connecting with the buoy and inputting gas into the cavity of the buoy.

[0014] Preferably, the support and the driver are both two, one driver being fixed on each support, one end of the pressing assembly being connected with one of the drivers and the other end of the pressing assembly being connected with the other driver.

[0015] Preferably, the pressing assembly comprises a connecting assembly and a pressing part, the connecting assembly being fixed with the driver and the connecting assembly being further fixed with the pressing part.

[0016] Preferably, the connecting assembly comprises a connecting plate, a first connecting pipe, a second connecting pipe, a third connecting pipe and an inclined support, the first connecting pipe being fixed with the connecting plate and one end of the second connecting pipe respectively, the other end of the second connecting pipe being fixed with one end of the third connecting pipe, the other end of the third connecting pipe being fixed with the pressing part, and the inclined support being fixed with the third connecting pipe and the pressing part respectively, the first connecting pipe being arranged along the longitudinal direction of the water tank, the second connecting pipe being arranged along the transverse direction of the water tank, and the third connecting pipe being arranged along the height direction of the water tank.

[0017] Preferably, the gas supply assembly comprises an air compressor and a gas conveying pipeline for connecting with the buoy, the air compressor being connected with the gas conveying pipeline.

[0018] Preferably, the utility model further comprises a supporting part and a lamp, at least a part of the supporting part being located above the water tank, and the lamp being connected with the supporting part.

[0019] Preferably, the utility model further comprises a transfer trolley for transferring the water tank.

[0020] The detection process of the utility model for the buoy is as follows: the buoy is put into the water tank, and the gas conveying pipeline is connected with the gas nozzle on the buoy. The driver works, the driver drives the pressing assembly to feed into the water tank, and after the pressing part acts on the buoy, the driver continues to drive the pressing assembly to press the buoy, so that the buoy is completely immersed in the water. When the first connecting pipe and the second connecting pipe abut against the upper end of the water tank, the driver stops working, the pressing force of the driver keeps the position of the pressing assembly, that is, the buoy is kept in the water. At this time, the compressed air output by the air compressor enters the inside of the buoy, and the worker checks whether there is air bubble coming out of the water. If there is air bubble, it indicates that the welding has defects, that is, the welding of the buoy is unqualified, and the detected buoy needs to be transferred back to the welding position for welding. If there is no air bubble, it indicates that there is no welding defect, that is, the buoy is a qualified product. The utility model can quickly detect whether the welded buoy is qualified.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the schematic view of the cutting angle part behind the plate.

[0022] Figure 2 It is the exploded view of the pontoon.

[0023] Figure 3 It is the assembly view of the pontoon.

[0024] Figure 4 It is the front view of the pontoon air tightness detection device of the utility model.

[0025] Figure 5 It is the perspective view of the pontoon air tightness detection device of the utility model.

[0026] Figure 6 It is the perspective view of the pressing assembly.

[0027] Box A, area A1, A2, A3, A4, intermediate support body B, panel C, air nozzle D.

[0028] Water tank 1, water tank body 1a, support foot 1b, reinforcing part 1c, base 2, bolt 2a, support 3, stand 3a, first support 3b, second support 3c, driver 4, pressing part 5, connecting plate 6, first connecting pipe 7, second connecting pipe 8, third connecting pipe 9, inclined support 10, air compressor 11, gas conveying pipe 12, support part 13, support rod 13a, lower support rod 13b, lamp 14. DETAILED DESCRIPTION

[0029] As Figures 1 to 6 shown, the utility model discloses a pontoon air tightness detection device, including water tank 1, base 2, support 3, driver 4, pressing assembly, gas supply assembly, water is contained in water tank 1, and water tank 1 is rectangular, and water tank 1 includes water tank body 1a, support foot 1b, reinforcing part 1c, and the lower surface of water tank body 1a is fixed with support foot 1b, and reinforcing part 1c is installed on the side surface of water tank body 1a.

[0030] Base 2 is preferably channel steel, and base 2 is combined with the foundation in the production workshop, for example, base 2 is fixed with the foundation in the production workshop by bolt 2a.

[0031] Support 3 is located at the side of water tank 1, and support 3 is fixed with base 2;Support 3 includes stand 3a, first support 3b and second support 3c, and stand 3a is preferably channel steel, and one end of stand 3a is welded and fixed with base 2, and first support 3b and second support 3c are welded and fixed with stand 3a respectively, and first support 3b is located above second support 3c.

[0032] The driver 4 is fixed with the support 3, and the driver 4 can adopt a linear driving component such as a pneumatic cylinder, a hydraulic cylinder or an electric screw rod. In the embodiment, the driver 4 preferably adopts a pneumatic cylinder. The driver 4 is fixed with the first support 3b and the second support 3c respectively, so as to increase the stability of the driver 4.

[0033] The pressing assembly is driven by the driver 4 to apply pressure to the buoy so as to submerge the buoy into the water in the water tank. The pressing assembly is connected with the driver 4. In the embodiment, the support 3 and the driver 4 are both two, one driver 4 is fixed on each support 3, one end of the pressing assembly is connected with one of the drivers 4, and the other end of the pressing assembly is connected with the other driver 4.

[0034] The pressing assembly comprises a connecting assembly and a pressing component 5. The connecting assembly is fixed with the driver 4, and the connecting assembly is further fixed with the pressing component 5.

[0035] The connecting assembly comprises a connecting plate 6, a first connecting pipe 7, a second connecting pipe 8, a third connecting pipe 9 and an inclined support 10. The first connecting pipe 7 is fixed with the connecting plate 6 and one end of the second connecting pipe 8 respectively. The other end of the second connecting pipe 8 is fixed with one end of the third connecting pipe 9. The other end of the third connecting pipe 9 is fixed with the pressing component 5. The inclined support 10 is fixed with the third connecting pipe 9 and the pressing component 5 respectively. The first connecting pipe 7 is arranged along the longitudinal direction of the water tank 1. The second connecting pipe 8 is arranged along the transverse direction of the water tank. The third connecting pipe 9 is arranged along the height direction of the water tank 1.

[0036] If the feeding amount of the pressing assembly is too large, the buoy can be pressed between the pressing assembly and the inner bottom of the water tank 1, so that the buoy is deformed or directly damaged by extrusion. Therefore, at least a part of the first connecting pipe 7 is abutted against the upper end of the water tank 1 when the pressing assembly feeds into the water tank 1. In the embodiment, the first connecting pipe 7 is preferably located above the upper end of the water tank 1, and a part of the second connecting pipe 8 is also located directly above the upper end of the water tank 1. The driver 4 drives the pressing assembly to feed into the water tank 1. When the first connecting pipe 7 and the second connecting pipe 8 are abutted against the upper end of the water tank 1 respectively, the pressing assembly cannot further feed into the water tank 1. At this time, the buoy is located above the inner bottom of the water tank 1, so that the buoy is prevented from being pressed between the pressing assembly and the inner bottom of the water tank 1, and the buoy is further prevented from being deformed or directly damaged by extrusion.

[0037] The air supply assembly is used for connecting with the buoy and inputting air into the inner cavity of the buoy. The air supply assembly comprises an air compressor 11 and an air conveying pipeline 12 for connecting with the buoy. The air compressor 11 is connected with the air conveying pipeline 12. An air nozzle D with a sealing cover is arranged on the panel C of the buoy (the air nozzle D with the sealing cover is prior art). The air nozzle D is penetrated through the containing cavity between the panel C and the tank body A. When it is needed to connect the air nozzle D with the air conveying pipeline 12, the sealing cover on the air nozzle D is opened, and the air nozzle D is connected with the air conveying pipeline 12.

[0038] The utility model also includes support part 13, lamps and lanterns 14, at least one part of support part 13 is located water tank 1 top, lamps and lanterns 14 are connected with support part 13, and support part 13 is along the transverse arrangement of water tank 1. Support part 13 includes middle support rod 13a and lower support rod 13b, and both ends of middle support rod 13a are fixed with lower support rod 13b, and lower support rod 13b is fixed with support 3, and lamps and lanterns 14 are connected with middle support rod 13a, when the illumination is low, open lamps and lanterns 14, to facilitate staff observation air tightness detection in water whether there is bubble to come out. The operation of opening lamps and lanterns 14 can be opened manually by staff, can also be controlled by the photosensitive sensor of setting and electrically connected with lamps and lanterns 14, and the photosensitive sensor is automatically detected illumination, when the illumination is lower than the setting value of photosensitive sensor, the photosensitive sensor makes lamps and lanterns 14 obtain the power supply of power supply, thereby making lamps and lanterns 14 light up. The photosensitive sensor control controls the opening or closing of lamps and lanterns for prior art, and will not be elaborated here.

[0039] Because the water in water tank 1 is turbid after long time of use, the water tank 1 with water is heavy, if the water in water tank 1 is released without moving water tank 1, this mode can be released by connecting drain valve and drain pipe at the bottom of water tank 1, but because water tank 1 is located in production workshop, the water is discharged outside the production workshop, a long drain pipe needs to be used, and various trolleys (such as ground oxen) run in the production workshop, when the trolley runs and acts on the drain pipe, the drain pipe is easily deformed or crushed, therefore, the preferred mode in the utility model is to use a transfer trolley (the transfer trolley is not shown in the figure) for transferring water tank 1, the water tank 1 is transferred to the outside of the production workshop by the transfer trolley, then the water in the water tank 1 is released, then clean water is input into the water tank 1, finally the water tank 1 is transported back to the production workshop by the transfer trolley and placed below the pressing assembly.

[0040] The detection process of the utility model on the float tank is as follows:

[0041] Put the float box into the water tank 1, connect the gas pipeline 12 with the air nozzle D on the float box. The driver 4 works, the driver 4 drives the pressing assembly to feed to the water tank 1, after the pressing component 5 acts on the float box, the driver 4 continues to drive the pressing assembly to press the float box, makes the float box completely immerse in the water, when the first connecting pipe 7 and the second connecting pipe 8 are in abutment with the upper end of the water tank 1, the driver 4 stops working, the pressing force of the driver 4 makes the position of the pressing assembly remain, that is, makes the float box remain in the water, at this time, the compressed air output by the air compressor 11 enters the inside of the float box, the worker checks whether there is air bubble coming out of the water, if there is air bubble, it shows that the welding has defects, that is, the welding of the float box is unqualified, the detected float box needs to be turned back to the welding place for welding. If there is no air bubble, it shows that there is no welding defect, that is, the float box is qualified.

Claims

1. A device for detecting the air tightness of a pontoon, characterized in that, It comprises: a water tank (1) containing water; a base (2); a support (3) located on the side of the water tank (1), the support (3) being fixed to the base (2); a driver (4) fixed to the support (3); a pressing assembly driven by the driver (4) to press the float tank into the water in the water tank, the pressing assembly being connected to the driver (4); a gas supply assembly for connecting to the float tank and inputting gas into the cavity of the float tank.

2. The air tightness testing device for pontoon according to claim 1, characterized in that, The support (3) and the driver (4) are both two, one driver (4) is fixed to each support (3), one end of the pressing assembly is connected to one of the drivers (4), and the other end of the pressing assembly is connected to the other driver (4).

3. The air tightness testing device for pontoon according to claim 1, characterized in that, The pressing assembly comprises a connecting assembly, a pressing part (5), the connecting assembly is fixed to the driver (4), and the connecting assembly is also fixed to the pressing part (5).

4. The air tightness testing apparatus of claim 3, wherein The connecting assembly comprises a connecting plate (6), a first connecting pipe (7), a second connecting pipe (8), a third connecting pipe (9), and an inclined support (10), the first connecting pipe (7) is fixed to the connecting plate (6) and one end of the second connecting pipe (8) respectively, the other end of the second connecting pipe (8) is fixed to one end of the third connecting pipe (9), the other end of the third connecting pipe (9) is fixed to the pressing part (5), the inclined support (10) is fixed to the third connecting pipe (9) and the pressing part (5) respectively, the first connecting pipe (7) is arranged along the longitudinal direction of the water tank (1), the second connecting pipe (8) is arranged along the transverse direction of the water tank (1), and the third connecting pipe (9) is arranged along the height direction of the water tank (1).

5. The air tightness testing apparatus of claim 4, wherein, At least a part of the first connecting pipe (7) abuts against the upper end of the water tank (1) when feeding the water tank (1).

6. The air tightness testing apparatus of claim 1, wherein The gas supply assembly comprises an air compressor (11) and a gas conveying pipe (12) for connecting to the float tank, the air compressor (11) is connected to the gas conveying pipe (12).

7. The air tightness testing apparatus of any one of claims 1 to 6, wherein It also comprises a support part (13) and a lamp (14), at least a part of the support part (13) is located above the water tank (1), and the lamp (14) is connected to the support part (13).

8. The air tightness testing apparatus for pontoons according to any one of claims 1 to 5, characterized in that, It also comprises a transfer trolley for transferring the water tank (1).

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