Inner floating roof tank

Abstract

The utility model discloses an inner floating disc of inner floating roof storage tank, including the disc body that a plurality of stainless steel sheets are formed by bolt splicing, the recess is established to the bottom edge of stainless steel sheet, and the recess inserts and has the fireproof strip, the outside of disc body is welded with the baffle ring, and the annular rubber skin and annular washer are equipped in proper order on the baffle ring top and are connected through the bolt, and the sponge is wrapped in after the both ends of annular rubber skin are folded, and the sponge is placed in the outside, and the surface of annular rubber skin is coated with the protective layer, and the plurality of angle steel sheets are welded to the below of disc body, and the float is fixed between two adjacent angle steel sheets, and the support rod is fixed on the angle steel sheet, the advantages are: the fireproof strip can reduce the leakage of volatile material in the inner floating roof storage tank, the sponge plays the elastic supporting effect to annular rubber skin, when the inner floating disc floats up and down, the surface deformation of annular rubber skin is closely combined with the tank wall, and the gap is avoided.

Description

Technical fields: This utility model relates to the field of floating roof technology, specifically to an internal floating roof for an internal floating roof storage tank. Background technology: A floating roof inside a storage tank is a floating structure installed inside a vertical cylindrical storage tank and floating on the surface of the stored liquid. Its main function is to float up and down with the changes in the liquid level inside the tank, effectively covering the liquid surface, isolating the medium from contact with air, thereby inhibiting evaporation, reducing tank wall corrosion, and maintaining stable tank pressure. It is commonly used in storage tanks for volatile liquids such as gasoline, diesel, and kerosene.

[0001] The current problem is: 1. The internal floating roof of existing internal floating roof tanks is mostly made of multiple stainless steel unit plates spliced ​​together. Gaps are inevitable at the splicing joints. These gaps are not only prone to leakage of volatile substances, but also become ignition points once they are ignited, making it difficult to extinguish the fire. 2. Because the tank wall cannot be completely matched with the internal floating roof, after the sealing strip is installed, some gaps leak out during the up-and-down floating process of the internal floating roof, resulting in localized volatilization. Utility Model Content: The purpose of this invention is to provide an internal floating roof for an internal floating roof tank to solve the problems mentioned in the background art.

[0002] This utility model is implemented by the following technical solution: An internal floating roof tank includes an internal floating roof disc comprising multiple stainless steel plates joined together by bolts to form a disc body. A groove is formed at the bottom edge of each stainless steel plate, into which a fireproof strip is inserted. A retaining ring is welded to the outer side of the disc body. Above the retaining ring, an annular rubber sheet and an annular washer are sequentially arranged and connected by bolts. The two ends of the annular rubber sheet are folded in half to enclose a sponge. The two ends of the annular rubber sheet are folded in half and laid flat between the retaining ring and the annular washer, so that the sponge is placed on the outside. The surface of the annular rubber sheet is coated with a protective layer. Multiple angle steel plates are welded to the bottom of the disc body. A float is fixed between two adjacent angle steel plates, and a support rod is fixed to the angle steel plates.

[0003] Preferably, the protective layer is formed by spraying a chloroprene rubber coating and a chloroprene rubber adhesive onto the surface of an annular rubber sheet and then curing it.

[0004] Preferably, the disc body is composed of eight stainless steel plates with an isosceles trapezoidal structure and six stainless steel plates with an arc shape.

[0005] Preferably, the surface of the disc is coated with a fire-retardant layer.

[0006] The advantages of this utility model are: the fireproof strip can effectively reduce the leakage of volatile substances stored in the internal floating roof tank, and at the same time, it can prevent the fire from becoming a ignition point in a short time after it is started, thus preventing the fire from spreading and buying time for fire fighting; the sponge provides elastic support to the outer ring rubber skin, so that the surface of the ring rubber skin can deform and fit tightly against the tank wall during the up and down floating process of the internal floating roof, avoiding gaps and preventing the volatilization of the medium. Attached image description: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 for Figure 1 A cross-sectional view between two adjacent stainless steel plates; Figure 4 for Figure 1 A sectional view of the middle section of the structure; Figure 5 This is a structural schematic diagram of the retaining ring of the component; Figure 6 Schematic diagram of stainless steel plate structure Figure 1 ; Figure 7 Schematic diagram of stainless steel plate structure Figure 2 .

[0007] In the diagram: 1. Disc body, 1.1. Stainless steel plate, 1.11. Groove, 2. Fireproof strip, 3. Retaining ring, 4. Annular rubber sheet, 5. Annular washer, 6. Sponge, 7. Angle steel plate, 8. Float, 9. Support rod. Detailed implementation method: The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0008] Please see Figure 1-7 This utility model provides a technical solution for the internal floating roof of an internal floating roof tank: An internal floating roof of an internal floating roof tank includes a plate body 1, the surface of which is coated with a fireproof layer (formed by spraying fireproof paint). The plate body 1 is formed by bolting together eight stainless steel plates 1.1 with an isosceles trapezoidal structure and six stainless steel plates 1.1 with an arc structure. The bottom edge of the stainless steel plates 1.1 has a groove 1.11, into which a fireproof strip 2 is inserted. This not only prevents the fireproof strip 2 from falling off, but also effectively reduces the leakage of volatile substances stored in the internal floating roof tank. At the same time, it can prevent the fire from becoming a ignition point in a short time after it is started, thus preventing the fire from spreading and buying time for fire fighting.

[0009] A retaining ring 3 is welded to the outside of the disc body 1 to maintain the stability of the disc body 1. Above the retaining ring 3, an annular rubber skin 4 and an annular washer 5 are arranged in sequence and connected by bolts. The two ends of the annular rubber skin 4 are folded in half and wrapped with sponge 6 inside. The two ends of the annular rubber skin 4 are folded in half and laid flat between the retaining ring 3 and the annular washer 5, so that the sponge 6 is placed on the outside. The sponge 6 provides elastic support to the outer annular rubber skin 4, so that the surface of the annular rubber skin 4 deforms during the up and down floating process, making it fit tightly against the tank wall, avoiding gaps and preventing the volatilization of the medium.

[0010] The surface of the annular rubber sheet 4 is coated with a protective layer, which is formed by spraying neoprene rubber coating and neoprene rubber adhesive onto the surface of the annular rubber sheet 4 and curing it, thus providing protection, corrosion resistance, and wear resistance.

[0011] Multiple angle steel plates 7 are welded to the bottom of the disc body 1 to support the bottom of the disc body 1. A float 8 is fixed between two adjacent angle steel plates 7, and a support rod 9 is fixed on the steel plate 7.

[0012] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An internal floating roof of an internal floating roof tank, characterized in that: The disc (1) is formed by bolting together multiple stainless steel plates (1.1). The bottom edge of the stainless steel plate (1.1) has a groove (1.11) and a fireproof strip (2) is inserted into the groove (1.11). A retaining ring (3) is welded to the outside of the disc (1). An annular rubber skin (4) and an annular washer (5) are arranged in sequence above the retaining ring (3) and connected by bolts. The two ends of the annular rubber skin (4) are folded in half to wrap the sponge (6) inside. The two ends of the annular rubber skin (4) are folded in half and laid flat between the retaining ring (3) and the annular washer (5), so that the sponge (6) is placed on the outside. The surface of the annular rubber skin (4) is coated with a protective layer. Multiple angle steel plates (7) are welded to the bottom of the disc (1). A float (8) is fixed between two adjacent angle steel plates (7). A support rod (9) is fixed on the angle steel plate (7).

2. The internal floating roof of an internal floating roof tank according to claim 1, characterized in that: The protective layer is formed by spraying chloroprene rubber coating and chloroprene rubber adhesive onto the surface of annular rubber skin (4) and curing it.

3. The internal floating roof of an internal floating roof tank according to claim 2, characterized in that: The disc body (1) is composed of eight stainless steel plates (1.1) with an isosceles trapezoidal structure and six stainless steel plates (1.1) with an arc shape.

4. The internal floating roof of an internal floating roof tank according to claim 3, characterized in that: The surface of the disc (1) is coated with a fireproof layer.

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