Large buoyancy type floating disc device with multi-power riveting and welding composite connection for storage tank

Abstract

The application discloses a large buoyancy type floating disc device for a tank with a multi-power hydraulic riveting and welding composite connection, and relates to the technical field of the floating disc for a tank. The device comprises a stainless steel fixed upper plate, a hydraulic cylinder, a stainless steel connecting frame, a welding and riveting composite forming frame and a flexible skin bag. The hydraulic cylinder is arranged between the stainless steel fixed upper plate and the stainless steel connecting frame, the lower surface of the stainless steel connecting frame is connected with the welding and riveting composite forming frame through a connecting column, the flexible skin bag is located between the stainless steel connecting frame and the welding and riveting composite forming frame, and the flexible skin bag is tightly attached to the tank wall to form a seal through the inflation pressurization mode. The upper surface of the stainless steel connecting frame is provided with a connecting frame pulley assembly. A gravity sensor is arranged between the tank and the foundation and is connected with a computer, the height of oil liquid in the tank is accurately calculated, and the stainless steel connecting frame is controlled to move to a proper position. The device has the characteristics of good mechanical properties, high control precision and strong running stability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of floating pan for storage tank, and particularly relates to a large floating force floating pan device for storage tank with multi-power liquid-driven riveting and welding composite connection. BACKGROUND

[0002] Petroleum is an important energy product in China, but it has the characteristics of easy evaporation, and when petroleum vapor mixes with air, it is easy to cause deflagration, thereby causing serious safety accidents. Therefore, China usually adds a floating pan device in the oil storage tank. Such device can cover the oil liquid surface and rise and fall with the rise and fall of the oil liquid in the oil storage tank, thereby effectively reducing the evaporation of oil liquid, having the effect of reducing the loss of petroleum products and improving the safety of oil storage equipment.

[0003] At present, the floating pan used in China mainly includes a floating cylinder type floating pan and a full liquid type floating pan. For the traditional floating cylinder type floating pan, although it has the advantages of simple structure and convenient manufacturing, the wall thickness of the floating cylinder of the floating pan is relatively thin, the welding difficulty is large, and the mechanical properties of the weld after welding are poor. In addition, the floating cylinder type floating pan has an oil gas space, and after the oil gas is mixed, it will cause corrosion to the floating pan, thereby causing the problem of weld cracking and oil liquid leakage, and in severe cases, it will cause the floating pan to sink. The full liquid type floating pan eliminates the existence of the oil gas space, and has the advantages of large structural strength, long service life, and high working stability compared with the floating cylinder type floating pan.

[0004] Although the full liquid type floating pan has many advantages, there are still some problems in such equipment in China at present. The full liquid type floating pan has multiple floating units inside, and the floating units are generally connected with the upper and lower cover plates by using a traditional welding method, which has large welding difficulty, and the mechanical properties of the weld are difficult to guarantee. In addition, the floating units are generally connected by bolts or buckles, and the connection reliability is poor, and when impacted, the floating units are easy to crack, thereby causing oil liquid leakage and leading to the sinking of the floating pan chuck. SUMMARY

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present application provides a large floating force floating pan device for storage tank with multi-power liquid-driven riveting and welding composite connection, which has more excellent mechanical properties and better running stability.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] The application discloses a large floating force type floating disc device for a storage tank with a multi-power liquid-driven riveting and welding composite connection, which comprises a stainless steel fixed upper plate, a hydraulic cylinder, a stainless steel connecting frame, a welding and riveting composite forming frame and a flexible skin bag.

[0008] Further, the welding and riveting composite forming frame comprises rectangular aluminum alloy partition plates, rivets, a stainless steel upper cover plate, stainless steel side plates and a stainless steel lower cover plate; the rectangular aluminum alloy partition plates are connected through rivet punching; the stainless steel upper cover plate, the rectangular aluminum alloy partition plates and the stainless steel side plates are welded through friction stir welding; and the stainless steel lower cover plate, the rectangular aluminum alloy partition plates and the stainless steel side plates are welded through friction stir welding.

[0009] Further, the flexible skin bag is arranged between the stainless steel connecting frame and the welding and riveting composite forming frame and is fixedly connected with the lower surface of the stainless steel connecting frame and the upper surface of the welding and riveting composite forming frame; the upper surface of the stainless steel connecting frame is provided with a connecting frame pulley assembly which is fixedly connected with the upper surface of the stainless steel connecting frame through welding.

[0010] Further, the connecting frame pulley assembly comprises an extending rod, a fixed frame, a sliding frame, a spring, a pulley and a connecting element; the extending rod is fixedly connected with the fixed frame and is fixedly connected with the upper surface of the stainless steel connecting frame through the fixed frame; the sliding frame is internally provided with a cavity, the extending rod and the spring are arranged in the cavity, and the pulley is connected with the sliding frame through the connecting element; an air inlet is arranged above the storage tank; an exhaust valve is arranged on the wall surface of the storage tank between the stainless steel fixed upper plate and the stainless steel connecting frame; an oil inlet and an oil outlet are arranged on the side wall of the bottom of the storage tank; a gravity sensor is arranged on the bottom of the storage tank and is connected with a computer.

[0011] Compared with the prior art, the application has the following beneficial effects:

[0012] 1. The welding and riveting composite forming frame is manufactured through the advanced forming process of friction stir welding and rivet punching connection, welding difficulty between elements is reduced, the manufacturing process is simplified, the mechanical property and the structural strength of the floating disc device are greatly improved, and the service life of the equipment is prolonged.

[0013] 2. The present application can make the stainless steel connecting frame slide up and down along the side wall of the storage tank stably by setting the connecting frame pulley assembly, reduces the stress on the side wall of the storage tank, and greatly reduces the probability of the stainless steel connecting frame chuck, improves the operation stability and reliability of the floating disc device.

[0014] 3. The present application adopts four hydraulic drive elements to control the up and down sliding of the stainless steel connecting frame, which can greatly improve the response speed and control accuracy of the floating disc device.

[0015] 4. The present application seals the floating disc device by setting the flexible skin bag through the inflation pressurization mode, which improves the sealing effect, reduces the stress on the side wall of the storage tank, reduces the maintenance cost of the storage tank, and improves the service life of the storage tank. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the present application;

[0017] Figure 2 is a connection schematic diagram of the stainless steel fixed upper plate, hydraulic cylinder and stainless steel connecting frame in the present application;

[0018] Figure 3 is a connection schematic diagram of the stainless steel connecting frame and the welded riveted composite forming frame in the present application;

[0019] Figure 4 is a structural schematic diagram of the welded riveted composite forming frame in the present application;

[0020] Figure 5 is a structural schematic diagram of the connecting frame pulley assembly in the present application.

[0021] MARK NO. EXPLANATION IN THE DRAWING:

[0022] 1, stainless steel fixed upper plate; 2, hydraulic cylinder; 3, stainless steel connecting frame; 4, welded riveted composite forming frame; 41, rectangular aluminum alloy partition; 42, rivet; 43, stainless steel upper cover plate; 44, stainless steel side plate; 45 stainless steel lower cover plate; 5, flexible skin bag; 6, storage tank; 7, hydraulic cylinder top bolt set; 8, hydraulic cylinder fixed base; 9, hydraulic cylinder bottom fixed bolt set; 10, connecting column; 11, connecting frame pulley assembly; 111, extension rod; 112, fixed frame; 113, sliding frame; 114, spring; 115 pulley, 116, connecting element; 12, air inlet; 13, exhaust valve; 14, oil inlet; 15, oil outlet; 16, gravity sensor; 17 foundation; 18, computer. DETAILED DESCRIPTION

[0023] The present application will be described in detail below with reference to the drawings.

[0024] Refer toFigure 1 、 Figure 2 and Figure 3 A large buoyancy type floating disc device for multi-power riveting and welding composite connection of storage tank, comprising a stainless steel fixed upper plate 1, a hydraulic cylinder 2, a stainless steel connecting frame 3, a welding and riveting composite forming frame 4 and a flexible skin bag 5. The stainless steel fixed upper plate 1 is located on the upper part of the storage tank 6 and is integrated with the storage tank 6 by welding. The hydraulic cylinder 2 is fixed on the stainless steel fixed upper plate 1 through the hydraulic cylinder top fixing bolt set 7. The bottom of the hydraulic cylinder 2 is provided with a hydraulic cylinder fixing base 8. The hydraulic cylinder 2 and the hydraulic cylinder fixing base 8 are fixed on the stainless steel connecting frame 3 through the hydraulic cylinder bottom fixing bolt set 9. The welding and riveting composite forming frame 4 is fixedly connected with the stainless steel connecting frame 3 through the connecting column 10.

[0025] Referring to Figure 1 and Figure 4 The welding and riveting composite forming frame 4 comprises an oblong aluminum alloy partition plate 41, a rivet 42, a stainless steel upper cover plate 43, a stainless steel side plate 44 and a stainless steel lower cover plate 45. Among them, the oblong aluminum alloy partition plate 41 is connected by rivet 42 punching connection, the stainless steel upper cover plate 43 and the oblong aluminum alloy partition plate 41 and the stainless steel side plate 44 are welded by friction stir welding, and the stainless steel lower cover plate 45 and the oblong aluminum alloy partition plate 41 and the stainless steel side plate 44 are welded by friction stir welding.

[0026] Referring to Figure 1 The flexible skin bag 5 is located between the stainless steel connecting frame 3 and the welding and riveting composite forming frame 4, and is fixedly connected with the lower surface of the stainless steel connecting frame 3 and the upper surface of the welding and riveting composite forming frame 4. The upper surface of the stainless steel connecting frame 3 is provided with a connecting frame pulley assembly 11 which is fixed on the upper surface of the stainless steel connecting frame 3 by welding.

[0027] Referring to Figure 1 and Figure 5 The connecting frame pulley assembly 11 comprises an extension rod 111, a fixed frame 112, a sliding frame 113, a spring 114, a pulley 115 and a connecting element 116. Among them, the extension rod 111 is fixedly connected with the fixed frame 112, and is fixedly connected on the upper surface of the stainless steel connecting frame 3 through the fixed frame 112. The sliding frame 113 has a cavity inside, the extension rod 111 and the spring 114 are installed in the cavity, and the pulley 115 is connected on the sliding frame 113 through the connecting element 116. An air inlet 12 is arranged above the storage tank 6, and an exhaust valve 13 is arranged on the wall surface of the storage tank 6 between the stainless steel fixed upper plate 1 and the stainless steel connecting frame 3. In addition, an oil inlet 14 and an oil outlet 15 are arranged on the side wall of the bottom of the storage tank 6, and a gravity sensor 16 is arranged at the bottom of the storage tank 6, which is connected with the foundation 17 and the computer 18.

[0028] The specific working principle of the present application is:

[0029] Referring to Figure 1 When the tank has a certain height of oil, the gravity sensor 16 transmits the obtained data to the computer 18, which accurately calculates the height of the oil in the tank, thereby controlling the hydraulic cylinder 2 to drive the stainless steel connecting frame 3 and the welded and riveted composite forming frame 4 to slide to the appropriate position in the tank 6, so that the welded and riveted composite forming frame 4 is tightly attached to the oil surface, and the exhaust valve 13 is opened, so that the excess oil gas originally present in the tank 6 passes through the gap between the welded and riveted composite forming frame 4, the flexible bladder 5, the stainless steel connecting frame 3 and the inner wall of the tank 6, and then is discharged through the exhaust valve 13, thereby eliminating the original oil gas space in the tank 6. Then, the exhaust valve 13 is immediately closed, and the air inlet 12 starts to charge and pressurize the tank 6, so that the flexible bladder 5 expands and tightly adheres to the tank 6 wall to form a flexible seal. When the oil level in the tank 6 changes, the gravity sensor 16 transmits the real-time change data to the computer 18 and accurately calculates the oil level, thereby controlling the welded and riveted composite forming frame 4 to maintain good contact with the oil surface at all times.

[0030] The working principle of the connecting frame pulley assembly 11 in the present application is as follows:

[0031] Referring to Figure 1 and Figure 5 When the stainless steel connecting frame 3 slides up and down in the tank, even if it has a slight angle of inclination, the sliding frame 113 can slide along the extension rod 111, thereby preventing the chucking phenomenon of the stainless steel connecting frame 3. Moreover, under the action of the spring 114, the displacement of the sliding frame 113 is not too large, thereby eliminating the problem of serious inclination of the stainless steel connecting frame 3, so that the stainless steel connecting frame 3 remains stable during lifting.

Claims

1. A large buoyant pontoon device for a storage tank with a multi-power rivet-weld hybrid connection, characterized by: The utility model relates to a kind of flexible skin bag and its structure, including stainless steel fixed upper plate (1), hydraulic cylinder (2), stainless steel connecting frame (3), welded riveting composite forming frame (4) and flexible skin bag (5);The stainless steel fixed upper plate (1) is located in the upper portion of storage tank (6), and is integrated with storage tank (6) by welding;Hydraulic cylinder (2) is fixed on the stainless steel fixed upper plate (1) by hydraulic cylinder top fixed bolt group (7), and the bottom of hydraulic cylinder (2) is equipped with hydraulic cylinder fixed base (8), and hydraulic cylinder (2) is fixed on the stainless steel connecting frame (3) by hydraulic cylinder bottom fixed bolt group (9) and hydraulic cylinder fixed base (8);The welded riveting composite forming frame (4) is fixedly connected with the stainless steel connecting frame (3) by connecting column (10); The welded riveting composite forming frame (4) includes rectangular aluminum alloy partition (41), rivet (42), stainless steel upper cover plate (43), stainless steel side plate (44) and stainless steel lower cover plate (45);Rectangular aluminum alloy partition (41) is connected by rivet (42) riveting punching;Stainless steel upper cover plate (43) is welded with rectangular aluminum alloy partition (41) and stainless steel side plate (44) by friction stir welding;Stainless steel lower cover plate (45) is welded with rectangular aluminum alloy partition (41) and stainless steel side plate (44) by friction stir welding; The flexible skin bag (5) is located between the stainless steel connecting frame (3) and the welded riveting composite forming frame (4), and is fixedly connected with the lower surface of the stainless steel connecting frame (3) and the upper surface of the welded riveting composite forming frame (4); Air inlet (12) is arranged above the storage tank (6), and exhaust valve (13) is arranged on the wall surface of the storage tank (6) between the stainless steel fixed upper plate (1) and the stainless steel connecting frame (3).

2. The multi-power hydraulic drive type riveted and welded composite jointed large buoyant type pontoon device for storage tanks according to claim 1, characterized in that: The upper surface of the stainless steel connecting frame (3) is provided with connecting frame pulley assembly (11), and the connecting frame pulley assembly (11) is fixed on the upper surface of the stainless steel connecting frame (3) by welding.

3. The multi-power hydraulic drive type riveted and welded composite jointed large buoyant type pontoon device for storage tanks according to claim 2, characterized in that: The connecting frame pulley assembly (11) includes extension rod (111), fixed frame (112), sliding frame (113), spring (114), pulley (115) and connecting element (116);The extension rod (111) is fixedly connected with the fixed frame (112), and is fixedly connected on the upper surface of the stainless steel connecting frame (3) through the fixed frame (112), the sliding frame (113) has a cavity, the extension rod (111) and the spring (114) are installed in the cavity, and the pulley (115) is connected to the sliding frame (113) through the connecting element (116);Oil inlet (14) and oil outlet (15) are arranged on the sidewall of the bottom of the storage tank (6);Gravity sensor (16) is arranged on the bottom of the storage tank (6), and the gravity sensor (16) is connected with foundation (17) and computer (18).

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