Spherical concrete oil tank

Abstract

The utility model belongs to the technical field of oil storage equipment, and particularly relates to a spherical concrete oil tank which comprises an oil tank body, the oil tank body sequentially comprises an inorganic coating, a PVDF (polyvinylidene fluoride) coating, a heat insulation layer, a reinforced concrete layer and an anti-corrosion and anti-seepage layer from outside to inside, the heat insulation layer is made of polyurethane, a zigzag base is arranged below the oil tank body, and the oil tank body is arranged on the base. The oil tank comprises an oil tank body, a sawtooth-shaped base is arranged on the oil tank body, sawtooth openings are formed in the upper surface of the sawtooth-shaped base, the sawtooth openings are evenly distributed sawtooth-shaped openings, an annular steel belt for fixing bolts is arranged at the joint of the sawtooth openings and the oil tank body, a pile foundation is arranged below the sawtooth-shaped base, and a breather valve is arranged above the oil tank body. The anti-corrosion and anti-seepage layer is arranged, anti-explosion polyurea is adopted, effective isolation between oil and concrete can be achieved through the material, the excellent anti-seepage performance is shown, and therefore the leakage risk of the oil is remarkably reduced, and the practicability of the spherical tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil storage equipment, in particular to a spherical concrete oil tank. Background Art

[0002] As a unique oil storage facility, spherical oil tanks have excellent stress conditions and exhibit unique structural and functional characteristics. Common spherical oil storage tank types include fiberglass and steel structures. Their capacity design is flexible and can be expanded from 100 cubic meters to thousands of cubic meters. However, the construction process of such oil tanks is relatively complicated, and the internal steel pipe support structure is susceptible to corrosion and erosion. Once the foundation settles, it may cause damage. Improper anti-seepage treatment measures can lead to difficult-to-repair leakage problems, which still require further breakthroughs.

[0003] Announcement No. CN213272013U discloses a large vacuum spherical tank with internal reinforcement ribs. The anti-seepage effect of the spherical tank is poor. Long-term use will cause the spherical tank to penetrate, affecting the use effect of the spherical tank. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a spherical concrete oil tank to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spherical concrete oil tank, comprising an oil tank body, wherein the oil tank body comprises an inorganic coating, a PVDF coating, an insulation layer, a reinforced concrete layer, and an anti-corrosion and anti-seepage layer from the outside to the inside, and the insulation layer is made of polyurethane.

[0006] As a preferred technical solution of the present invention, a sawtooth-shaped base is provided below the oil tank body.

[0007] As a preferred technical solution of the present invention, the upper surface of the sawtooth base is provided with sawtooth openings, and the sawtooth openings are evenly distributed sawtooth openings.

[0008] As a preferred technical solution of the present invention, a ring-shaped steel belt with fixing bolts is provided at the connection between the serrated opening and the oil tank body.

[0009] As a preferred technical solution of the present invention, a pile foundation is provided below the sawtooth base.

[0010] As a preferred technical solution of the present invention, a breathing valve is provided above the oil tank body.

[0011] Compared with the prior art, the present invention provides a spherical concrete oil tank with the following beneficial effects:

[0012] This utility model sets an anti-corrosion and anti-seepage layer and adopts anti-explosion polyurea. This material can effectively isolate the oil and concrete, showing excellent seepage-proof performance, thereby significantly reducing the risk of oil leakage and improving the practicality of the spherical tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is an enlarged schematic diagram of the structure at B of the utility model;

[0015] Figure 3 This is an enlarged schematic diagram of the structure at point A of the utility model;

[0016] Figure 4 It is an enlarged schematic diagram of the structure at point C of the present invention.

[0017] In the figure: 1. Inorganic coating; 2. PVDF coating; 3. Thermal insulation layer; 4. Reinforced concrete layer; 5. Anti-corrosion and anti-seepage layer; 6. Sawtooth base; 7. Breathing valve; 8. Pile foundation; 9. Annular steel belt with fixing bolts; 10. Sawtooth mouth; 11. Oil tank body. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example

[0020] See also Figure 1-4 The present invention provides the following technical solution: a spherical concrete oil tank comprising a tank body 11, which is coated, from the outside to the inside, with an inorganic coating 1, a PVDF coating 2, a thermal insulation layer 3, a reinforced concrete layer 4, and an anti-corrosion and anti-seepage layer 5. The thermal insulation layer 3 is made of polyurethane. In this embodiment, the difficulty of forming a "spherical" shape is addressed by using a soft fabric membrane as the building material. Based on the required design appearance, a computer is used to accurately simulate and draw the membrane. The membrane is then cut and spliced ​​into a "spherical" shape, ensuring that the membrane components fit tightly together. Finally, through inflation, the desired architectural contour is firmly formed, effectively solving the difficult problem of spherical building formation and achieving a perfect combination of design concept and construction practice.

[0021] Reduce the middle support pipe: The reinforced concrete structure has good compressive performance. The overall structural design has no beams or columns in the middle, realizing a structural layout that does not require additional support. It has strong mechanical properties, effectively resists wind loads, and demonstrates stronger mechanical properties, ensuring the stability and safety of the structure.

[0022] Excellent blast resistance: The "sphere" reinforced concrete structure is renowned for its exceptional performance, significantly enhancing its ability to withstand force majeure events such as earthquakes and typhoons. Furthermore, when exposed to unexpected and powerful external forces, such as explosions and missile blasts, the structure effectively mitigates the impact of localized damage, ensuring overall structural stability and safety, demonstrating its exceptional blast resistance.

[0023] Superior thermal insulation: The structural layer is composed of multiple layers, each with excellent performance and protective properties. The outer layer is sprayed with a polyurethane layer, which exhibits excellent thermal insulation performance, significantly reducing the impact of atmospheric temperature fluctuations and direct sunlight on the temperature of stored oil. This design effectively isolates heat transfer, thereby lowering the internal ambient temperature, reducing oil volatilization, and achieving the positive effect of reducing oil evaporation losses.

[0024] Excellent fire resistance: The internal reinforced concrete layer is constructed of non-combustible fireproof material, while the outer layer's ultra-fine inorganic cotton finish meets Class A fire protection standards, demonstrating exceptional fire resistance. To further optimize the fire protection design, firebreaks have been added at specific heights within the structural layer, with a thickness of at least 300 mm. This design significantly enhances the structure's fire resistance and significantly improves its fire resistance.

[0025] Good anti-corrosion and anti-seepage layer 5: The outer side of the internal reinforced concrete layer is made of anti-violence polyurea, which can effectively isolate the oil from the concrete, thereby significantly reducing the risk of oil leakage.

[0026] Specifically, a sawtooth-shaped base 6 is provided below the oil tank body 11 .

[0027] In this embodiment, a serrated annular base is specially designed at the key position of the base connection. This unique design is intended to prevent the negative effects that may be caused by leakage to the greatest extent possible and ensure the stability and safety of the overall structure.

[0028] Specifically, the upper surface of the sawtooth base 6 is provided with sawtooth openings 10 , which are evenly distributed sawtooth-shaped openings.

[0029] Specifically, a fixing bolt annular steel belt 9 is provided at the connection between the serrated opening 10 and the oil tank body 11 .

[0030] Specifically, a pile foundation 8 is provided below the sawtooth-shaped base 6 .

[0031] Specifically, a breathing valve 7 is provided above the oil tank body 11 .

[0032] The beneficial effects of this embodiment are: This method is a simple and efficient method for constructing large-diameter spherical concrete oil tanks, with a flexible and adaptable capacity range, which can be expanded according to actual needs. Its core value lies in the excellent performance of reinforced concrete materials, whose excellent durability ensures a stable service life, thereby significantly improving economic benefits.

[0033] This spherical structure demonstrates exceptional structural performance, reducing the complexity of foundation preparation and significantly reducing construction costs. The use of a one-piece molding process ensures the integrity and stability of the tank structure, enabling it to withstand various external forces with exceptional performance. To prevent leakage, we have implemented a variety of advanced measures to effectively minimize the adverse effects of external air and sunlight on the temperature of the stored oil. Furthermore, the tank exhibits high safety features in terms of explosion and fire resistance, further enhancing its application value and safety.

[0034] In summary, this technology has broad application prospects and important practical value.

[0035] The working principle and use process of this utility model: A large "spherical" concrete oil tank, the structure of which mainly includes pile foundation, sawtooth annular base, spherical shell composed of multi-layer composite materials and finely designed detailed structure. Specifically, the sawtooth annular base is detailed in Figure 1 The design has a zigzag oil-isolating seam at the junction of the base and the concrete. The seam is 100mm wide and 200mm deep. It aims to ensure a stable and leak-proof connection between the spherical shell and the concrete base, effectively preventing oil leakage.

[0036] The structure of the spherical shell reflects a high degree of technical integration. From the outside to the inside, it consists of ultra-fine inorganic cotton coating, soft fabric membrane, polyurethane layer, reinforced concrete layer and anti-explosion polyurea layer. Figure 2 In addition, a fireproof isolation zone with a thickness of not less than 300mm is provided at a specific height of the spherical shell. Figure 3 This design significantly optimizes the fire protection performance and greatly enhances the fire protection capability of the oil tank.

[0037] In terms of detailed structure, the top of the oil tank adopts a "rain cap" breathing valve design. Figure 4 This innovative design can effectively connect to the external environment, timely adjust and reduce the pressure inside the spherical building, thereby avoiding the risk of explosion caused by pressure accumulation and ensuring the safe operation of the oil tank.

[0038] Usage process: site leveling → foundation treatment → zigzag ring base construction → "spherical" forming construction → assembly of inner and outer construction platforms → polyurethane layer construction → concrete layer construction → isolation layer construction → detailed structure construction → external fire retardant coating construction → dismantling and acceptance

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A spherical concrete oil tank, comprising an oil tank body (11), characterized in that: The oil tank body (11) comprises, from outside to inside, an inorganic coating (1), a PVDF coating (2), a heat insulation layer (3), a reinforced concrete layer (4), and an anti-corrosion and anti-seepage layer (5), wherein the heat insulation layer (3) is made of polyurethane.

2. A spherical concrete oil tank according to claim 1, characterized in that: A sawtooth-shaped base (6) is provided below the oil tank body (11).

3. A spherical concrete oil tank according to claim 2, characterized in that: The upper surface of the sawtooth base (6) is provided with sawtooth openings (10), and the sawtooth openings (10) are evenly distributed sawtooth openings.

4. The spherical concrete oil tank according to claim 3, characterized in that: A fixing bolt annular steel belt (9) is provided at the connection between the serrated opening (10) and the oil tank body (11).

5. The spherical concrete oil tank according to claim 4, characterized in that: A pile foundation (8) is provided below the sawtooth-shaped base (6).

6. The spherical concrete oil tank according to claim 5, characterized in that: A breathing valve (7) is provided above the oil tank body (11).

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