Box type inner floating roof for storage tank

By combining the design of floating roof one and floating roof two, along with a buffer mechanism, the insufficient sealing performance and reset problem of the box-type internal floating roof for storage tanks were solved, thereby improving the stability and safety of the storage tanks.

CN224410239UActive Publication Date: 2026-06-26江苏荣普机械有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江苏荣普机械有限公司
Filing Date
2025-06-18
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing box-type internal floating roofs for storage tanks have problems with insufficient sealing performance and inability to quickly reset, which prevents materials from fully entering under the floating roof and affects the use of the storage tank.

Method used

The design employs a combination of floating roof one and floating roof two, incorporating structures such as sealing gaskets, spring tubes, sliding rods, and limit rods to ensure material isolation from air. Furthermore, the floating roofs are raised and lowered smoothly and reset quickly through a buffer mechanism and elastic structure.

Benefits of technology

It enhances the sealing performance and stability of the storage tank, prevents material volatilization, and improves the safety and service life of the storage tank.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a box type inner floating disc for storage tank relates to box type inner floating disc for storage tank technical field, including the storage jar, the inner chamber swing joint of storage jar has the floating disc mechanism, the right side lower part fixedly connected with the discharge pipe of storage jar periphery, the right side fixedly connected with the feeding mechanism of storage jar inner chamber. The utility model discloses a box type inner floating disc for storage tank, through the cooperation of feed inlet, spring pipe no.
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Description

Technical Field

[0001] This utility model relates to the technical field of box-type internal floating roofs for storage tanks, and particularly to a box-type internal floating roof for storage tanks. Background Technology

[0002] Storage tanks are equipment used to store various liquid raw materials, semi-finished products or finished products. Tank-type internal floating roofs are floating sealing devices installed inside storage tanks, mainly used to reduce liquid evaporation and pollution, and to ensure the quality and storage safety of oil products.

[0003] Chinese patent document CN219340445U discloses a box-type internal floating roof for storage tanks, including a box-type storage tank and a support base installed at the bottom of the box-type storage tank. Two sets of inlet pipes are installed on the top of the box-type storage tank, and a discharge pipe is provided on one side of the bottom of the box-type storage tank. A control valve is provided on the outside of the discharge pipe. An internal floating roof is connected to the inside of the box-type storage tank via a sliding mechanism. Sealing blocks are provided on the left and right sides of the internal floating roof. Support legs are provided at the bottom of the internal floating roof, and a drop buffer mechanism is provided on the side of the support legs. This box-type internal floating roof for storage tanks, through the design of the internal components of the drop buffer mechanism, can buffer and protect the internal floating roof from the force of its descent when the media such as oil, gas, liquid, or chemical products are discharged from the box-type storage tank. This prevents the internal floating roof from breaking or being damaged due to excessive descent force, thus extending the service life of the internal floating roof.

[0004] The existing technology has the following problems:

[0005] Although the above-mentioned utility model can buffer and protect the floating roof, the fact that the upper inlet pipe is not connected to the lower part of the floating roof will cause the material to not be able to fully enter the lower part of the floating roof, resulting in insufficient sealing performance and inability to quickly reset when the material liquid level changes, thus affecting the use of the storage tank. Utility Model Content

[0006] This utility model provides a box-type internal floating roof for storage tanks to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A box-type internal floating roof for a storage tank includes a storage tank, a floating roof mechanism is movably connected to the inner cavity of the storage tank, a discharge pipe is fixedly connected to the lower right side of the outer periphery of the storage tank, and a feeding mechanism is fixedly connected to the right side of the inner cavity of the storage tank.

[0009] The floating platform mechanism includes a first floating platform, a second floating platform fixedly connected to the upper surface of the first floating platform, a sealing gasket fixedly connected to the outer periphery of the first floating platform, the outer periphery of the sealing gasket being slidably connected to the inner side of the storage tank, and a tension spring fixedly connected to the middle of the lower surface of the second floating platform.

[0010] Preferably, the feeding mechanism includes a spring tube, the upper outer periphery of which is fixedly connected to the upper right side of the storage tank, the lower outer periphery of which passes through the float and is fixedly connected to the right side of the float, the upper surface of the spring tube is fixedly connected to a feed inlet, and the lower surface of the spring tube is fixedly connected to a discharge outlet.

[0011] Preferably, a buffer mechanism is movably connected to the lower surface of the first floating plate. The buffer mechanism includes a first ring plate, a buffer plate slidably connected to the inner side of the outer periphery of the first ring plate, a second ring plate slidably connected to the inner side of the outer periphery of the buffer plate, a limit plate fixedly connected to the outer periphery of the upper part of the buffer plate, and a plurality of buffer springs distributed in a ring fixedly connected to the inner cavity of the buffer plate.

[0012] Preferably, a limiting rod is slidably connected to the middle of the second floating platform, the lower surface of the limiting rod is fixedly connected to the bottom surface of the inner cavity of the storage tank, and the tension spring is movably sleeved on the outer periphery of the limiting rod.

[0013] Preferably, the upper surface of the second floating platform is fixedly connected with a plurality of sliding rods arranged in a rectangular pattern, the outer periphery of the sliding rods is slidably connected to the upper part of the storage tank, and the upper surfaces of the plurality of sliding rods are jointly fixedly connected with a baffle.

[0014] Preferably, a second spring tube is fixedly connected to the middle of the first floating plate, the lower surface of the second spring tube is fixedly connected to the middle of the bottom surface of the inner cavity of the storage tank, and the second spring tube is movably sleeved on the outer periphery of the tension spring.

[0015] Preferably, the lower end of the tension spring is fixedly connected to the bottom of the inner cavity of the storage tank, and the upper end of the buffer spring is fixedly connected to the lower surface of the float.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] This utility model provides a box-type internal floating roof for storage tanks. Through the cooperation of the inlet, spring tube one, outlet, floating roof one, sealing gasket, sliding rod, limiting rod, floating roof two, and spring tube two, floating roof one, floating roof two, and sealing gasket, the material is effectively isolated from the air to prevent evaporation. Spring tube one and spring tube two allow the liquid to flow directly to the bottom of floating roof one, enhancing the sealing performance of the storage tank. With the cooperation of the sliding rod and limiting rod, the stability and anti-overturning ability of the floating roof during the raising and lowering process are ensured, thereby improving the overall stability and safety of the storage tank.

[0018] This utility model provides a box-type internal floating roof for storage tanks. Through the cooperation of ring plate one, ring plate two, buffer plate, limiting plate, buffer spring, and tension spring, the buffer spring and buffer plate effectively reduce the impact on the bottom of the storage tank during the raising and lowering of the floating roof. The rebound force of the tension spring allows the floating roof to quickly return to its original position when the material level changes. The movable sleeve design of the spring tube not only maintains elasticity but also adapts to the raising and lowering changes of the floating roof, providing additional support and flexibility, further enhancing the safety performance and service life of the storage tank. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a cross-sectional view of the storage tank of this utility model;

[0021] Figure 3 This is a schematic diagram of the floating roof mechanism of this utility model;

[0022] Figure 4 This is a cross-sectional view of the floating roof mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the buffer mechanism structure of this utility model;

[0024] Figure 6 For the present utility model Figure 5 Enlarged structural diagram of part A in the middle.

[0025] In the diagram: 1. Storage tank; 2. Feeding mechanism; 21. Feed inlet; 22. Bourdon tube 1; 23. Discharge outlet; 3. Discharge pipe; 4. Float mechanism; 41. Float 1; 42. Sealing gasket; 43. Float 2; 44. Bourdon tube 2; 45. Tension spring; 5. Buffer mechanism; 51. Ring plate 1; 52. Ring plate 2; 53. Buffer plate; 54. Limiting plate; 55. Buffer spring; 6. Slide rod; 7. Baffle; 8. Limiting rod. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figures 1-6 As shown, a box-type internal floating roof for a storage tank includes a storage tank 1, a floating roof mechanism 4 movably connected to the inner cavity of the storage tank 1, a discharge pipe 3 fixedly connected to the lower right side of the outer periphery of the storage tank 1, and a feeding mechanism 2 fixedly connected to the right side of the inner cavity of the storage tank 1.

[0028] The floating platform mechanism 4 includes a first floating platform 41, a second floating platform 43 fixedly connected to the upper surface of the first floating platform 41, a sealing gasket 42 fixedly connected to the outer periphery of the first floating platform 41, the outer periphery of the sealing gasket 42 being slidably connected to the inner side of the storage tank 1, and a tension spring 45 fixedly connected to the middle of the lower surface of the second floating platform 43.

[0029] It should be noted that storage tank 1 is used to store liquid materials, and discharge pipe 3 is used to discharge liquid materials. The floating roof mechanism 4 automatically adjusts its position as the liquid level in storage tank 1 rises and falls, thereby maintaining effective isolation between the material and air, preventing material evaporation that could cause environmental pollution or safety hazards. The combination of floating roof one 41 and floating roof two 43 increases the stability and load-bearing area of ​​the floating roof, ensuring it floats smoothly above the material. The sealing gasket 42 effectively prevents material leakage between the floating roof and the inner wall of storage tank 1, enhancing the tank's sealing performance. Simultaneously, the outer periphery of the sealing gasket 42 is slidably connected to the inner side of storage tank 1, ensuring smooth movement of the floating roof during raising and lowering, and reducing frictional resistance.

[0030] like Figure 2 As shown, the feeding mechanism 2 includes a spring tube 22. The outer periphery of the upper part of the spring tube 22 is fixedly connected to the right side of the upper part of the storage tank 1. The outer periphery of the lower part of the spring tube 22 passes through the float 43 and is fixedly connected to the right side of the float 41. The upper surface of the spring tube 22 is fixedly connected to the feed port 21, and the lower surface of the spring tube 22 is fixedly connected to the discharge port 23.

[0031] It should be noted that the spring tube 22 in the feeding mechanism 2 has a certain degree of elasticity, which can adapt to the positional changes when the floating plate floats up and down, ensuring that the material can smoothly enter the storage tank 1. The fixed connection between the inlet 21 and the outlet 23 ensures the continuity and stability of the material flow.

[0032] like Figure 5 and Figure 6 As shown, a buffer mechanism 5 is movably connected to the lower surface of the floating disk 41. The buffer mechanism 5 includes a ring plate 51, a buffer plate 53 is slidably connected to the inner side of the outer periphery of the ring plate 51, a ring plate 52 is slidably connected to the inner side of the outer periphery of the buffer plate 53, a limit plate 54 is fixedly connected to the outer periphery of the upper part of the buffer plate 53, and a plurality of buffer springs 55 distributed in a ring are fixedly connected to the inner cavity of the buffer plate 53.

[0033] It should be noted that the buffer mechanism 5 effectively reduces the impact of the floating roof on the bottom of the storage tank 1 during the lifting and lowering process, thus extending the service life of the storage tank. Ring plate 1 51 and ring plate 2 52, together with the limiting plate 54, restrict excessive movement of the buffer plate 53, ensuring the stability and reliability of the buffer mechanism 5. The buffer spring 55 provides the cushioning effect.

[0034] like Figure 4As shown, a limiting rod 8 is slidably connected to the middle of the second floating plate 43. The lower surface of the limiting rod 8 is fixedly connected to the bottom surface of the inner cavity of the storage tank 1, and the tension spring 45 is movably sleeved on the outer periphery of the limiting rod 8.

[0035] It should be noted that the limiting rod 8 serves to guide and limit the raising and lowering of the second floating roof 43, ensuring the stability and accuracy of the floating roof during the raising and lowering process. At the same time, the tension spring 45 is movably sleeved on the outer periphery of the limiting rod 8, increasing the rebound force of the floating roof and enabling it to quickly return to its original position when the material liquid level drops.

[0036] like Figure 3 As shown, multiple sliding rods 6 arranged in a rectangular pattern are fixedly connected to the upper surface of the floating plate 2 43. The outer periphery of the sliding rods 6 is slidably connected to the upper part of the storage tank 1, and a baffle 7 is fixedly connected to the upper surface of the multiple sliding rods 6.

[0037] It should be noted that the sliding rod 6 and the baffle 7 work together to enhance the overall stability and anti-tipping ability of the floating roof mechanism 4. The sliding connection of the sliding rod 6 to the upper part of the storage tank 1 ensures the smooth movement of the floating roof during the lifting and lowering process, while the baffle 7 prevents the floating roof from tipping over when the material liquid level is too high.

[0038] like Figure 2 As shown, a spring tube 44 is fixedly connected to the middle of the floating plate 41. The lower surface of the spring tube 44 is fixedly connected to the middle of the bottom surface of the inner cavity of the storage tank 1. The spring tube 44 is movably sleeved on the outer periphery of the tension spring 45.

[0039] It should be noted that the second spring tube 44 is used to enhance the stability and flexibility of the floating roof mechanism 4. The second spring tube 44 is movably sleeved on the outer periphery of the tension spring 45, which can both maintain the elastic effect of the tension spring 45 and adapt to the rise and fall of the floating roof. At the same time, the lower surface of the second spring tube 44 is fixedly connected to the middle of the bottom surface of the inner cavity of the storage tank 1, providing a stable support point for the floating roof.

[0040] like Figure 2 As shown, the lower end of the tension spring 45 is fixedly connected to the bottom of the inner cavity of the storage tank 1, and the upper end of the buffer spring 55 is fixedly connected to the lower surface of the floating plate 41.

[0041] It should be noted that the lower end of the tension spring 45 is fixedly connected to the bottom of the inner cavity of the storage tank 1, ensuring that the floating roof has sufficient rebound force during the raising and lowering process. The upper end of the buffer spring 55 is fixedly connected to the lower surface of the floating roof 41, which enhances the floating roof's ability to buffer impacts and improves the safety performance of the storage tank.

[0042] The working principle of this utility model is as follows: Material is input through the feed inlet 21 and transported to the interior of the storage tank 1 through the discharge outlet 23 via the spring tube 22. The liquid compresses the float 41, causing it to rise. Simultaneously, the second float 43 slides around the outer periphery of the limiting rod 8. During the rising process, the slide rod 6 slides on the upper part of the storage tank 1, allowing the float 41 to rise and fall stably. The spring tube 44 protects the internal tension spring 45 and the limiting rod 8 from liquid corrosion. When the liquid is discharged from the storage tank 1 through the discharge pipe 3, the tension spring 45 pulls the float 41 and the upper float 43 downward. When the liquid is completely discharged, the buffer plate 53 will first contact the bottom of the storage tank 1, while the buffer spring 55 compresses and slows down the descent speed of the float 41, preventing the float 41 from directly impacting the bottom of the inner cavity of the storage tank 1.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A box type inner floating roof for a storage tank comprising a storage tank (1), characterized by: The storage tank (1) is movably connected to a floating plate mechanism (4), and a discharge pipe (3) is fixedly connected to the lower right side of the outer periphery of the storage tank (1). A feeding mechanism (2) is fixedly connected to the right side of the inner cavity of the storage tank (1). The floating plate mechanism (4) includes a first floating plate (41), a second floating plate (43) is fixedly connected to the upper surface of the first floating plate (41), a sealing gasket (42) is fixedly connected to the outer periphery of the first floating plate (41), the outer periphery of the sealing gasket (42) is slidably connected to the inner side of the storage tank (1), and a tension spring (45) is fixedly connected to the middle of the lower surface of the second floating plate (43).

2. The box-type internal floating roof for storage tanks according to claim 1, characterized in that: The feeding mechanism (2) includes a spring tube (22), the upper outer periphery of which is fixedly connected to the upper right side of the storage tank (1), the lower outer periphery of which passes through the float (43) and is fixedly connected to the right side of the float (41), the upper surface of the spring tube (22) is fixedly connected to the feed port (21), and the lower surface of the spring tube (22) is fixedly connected to the discharge port (23).

3. The box-type internal floating roof for storage tanks according to claim 2, characterized in that: The lower surface of the first floating plate (41) is movably connected to a buffer mechanism (5). The buffer mechanism (5) includes a ring plate (51). A buffer plate (53) is slidably connected to the inner side of the outer periphery of the first ring plate (51). A second ring plate (52) is slidably connected to the inner side of the outer periphery of the buffer plate (53). A limit plate (54) is fixedly connected to the outer periphery of the upper part of the buffer plate (53). A plurality of buffer springs (55) distributed in a ring are fixedly connected to the inner cavity of the buffer plate (53).

4. The box-type internal floating roof for storage tanks according to claim 3, characterized in that: The middle part of the second floating plate (43) is slidably connected to a limiting rod (8), the lower surface of the limiting rod (8) is fixedly connected to the bottom surface of the inner cavity of the storage tank (1), and the tension spring (45) is movably sleeved on the outer periphery of the limiting rod (8).

5. A box-type internal floating roof for a storage tank according to claim 3, characterized in that: The upper surface of the second floating platform (43) is fixedly connected with a plurality of sliding rods (6) arranged in a rectangular shape. The outer periphery of the sliding rods (6) is slidably connected to the upper part of the storage tank (1). The upper surfaces of the plurality of sliding rods (6) are fixedly connected with a baffle (7).

6. A box-type internal floating roof for storage tanks according to claim 4, characterized in that: The middle part of the first floating plate (41) is fixedly connected to the second spring tube (44), the lower surface of the second spring tube (44) is fixedly connected to the middle part of the bottom surface of the inner cavity of the storage tank (1), and the second spring tube (44) is movably sleeved on the outer periphery of the tension spring (45).

7. A box-type internal floating roof for storage tanks according to claim 6, characterized in that: The lower end of the tension spring (45) is fixedly connected to the bottom of the inner cavity of the storage tank (1), and the upper end of the buffer spring (55) is fixedly connected to the lower surface of the float (41).