Is a vertical flat top cone bottom tank a vault tank?

Vertical flat-top cone-bottom tanks and vaulted tanks are both common types of storage tanks, but they differ in structure and purpose, so they cannot simply be grouped into the same category.

First of all, the structure of a vertical flat-top cone-bottom storage tank is composed of a vertical cylinder and a conical bottom, with a flat top and is usually used to store liquid or gaseous substances. Dome tanks, on the other hand, consist of a vaulted top and a cylindrical cylinder, which are usually used to store powdery or granular substances.

Secondly, vertical flat-topped cone-bottom storage tanks and vaulted tanks are also different in use. Vertical flat-topped cone-bottom storage tanks are usually used to store liquid or gaseous substances, such as petroleum, chemicals, natural gas, etc., while vaulted tanks are mainly used to store powdery or granular substances, such as cement, coal ash, grain, etc.

Therefore, although vertical flat-top cone-bottom tanks and vault tanks are both types of storage tanks, they differ in structure and purpose and cannot simply be classified into the same category.

Definitely not belong to yo, the storage tank with a flat top and lower cone means that the upper head is flat with a plate, and the lower head is conical;

The vault jar is vaulted with an upper head and a flat bottom at the lower head.

Basically, the volume of the vertical flat-top cone bottom storage tank is relatively small, while the volume of the vault tank equipment is quite large, starting from a few hundred cubic meters.

It should not, the vertical cone-bottom storage tank is different from the flat-bottom storage tank, its bottom is a conical structure, and the base needs to be configured, so that the cone-bottom storage tank of this shape has clean drainage and is suitable for viscous liquids.

A flat top refers to the shape of the top of the tank, and the cone bottom is the shape of the bottom plate of the tank, so it is not a vault tank.

Normally, the diameter and height are designed at 1:1, but if the site is limited, taking into account the nature of the material, there is a problem with fire spacing, and the diameter and height should be redesigned to comply with the regulations Man, asking this question is a bit general, so I am also general: In terms of infrastructure, the tank farm includes: .

Calculation of the insulation quantity of the vault oil tank: v 2 r (h formula, the r radius (not the cylindrical radius, the vault radius) is calculated by radians; h Vault protrusion height.

The vault storage tank refers to a steel container with a spherical crown and a cylindrical tank body.

Answer] Collapse knows: b, c, e

2020 Textbook P28 2019 Textbook P19

Fixed roof storage tanks can be divided into conical top storage tanks, vault storage tanks, and self-supporting umbrella storage tanks; The floating roof storage tank is divided into floating roof storage tank, internal floating roof storage tank (inner floating roof storage tank with lid).

The height and diameter of the vault tank are generally determined according to the volume and density of the stored material. Here are some common methods:1

The required volume is calculated based on the volume and density of the stored material, and then the height and diameter of the tank are calculated based on the angle and height of the vault at the time of design. 2.The height of the tank is determined according to the required storage capacity and terrain conditions, and the diameter is calculated based on the angle and height of the vault that rolled out at the time of design.

3.The diameter and height of the tank are determined according to the purpose of the tank and the characteristics of the process, and then the volume of the tank is calculated according to the angle and height of the vault at the time of design. Bends.

Answer]: B, C

This question examines the engineering of static equipment and process metal structures. First, compared with the floating roof storage tank, because there is a fixed approved roof, it can effectively prevent the invasion of wind, sand, rain, snow or dust, and absolutely ensure the quality of the storage liquid; At the same time, the inner floating plate floats on the liquid surface, so that there is no vapor space for the liquid banquet, which can reduce the evaporation loss by 85% and 96%; Reduce air pollution, reduce the risk of fire**, especially suitable for storing high-grade gasoline and jet fuel and toxic petrochemicals; Because there is no gas space on the liquid surface, it can also reduce the corrosion of the tank wall and the top of the tank belt, and prolong the service life of the storage tank.

Disadvantages of internal floating roof storage tank: compared with the vault tank, the consumption of steel plate is more, and the construction requirements are high; Compared with the floating roof tank, it is inconvenient to maintain (sealed structure), and the storage tank is not easy to be large-scale, and it is generally not more than 10,000m3 at present.

Answer] :d commonly used vertical cylindrical steel welded storage tanks (hereinafter referred to as steel storage tanks) include fixed roof storage tanks (including cone roof storage tanks, vault storage tanks, and non-current storage tanks), inner floating disc vault storage tanks, floating roof storage tanks and double-layer storage tanks (LNG storage tanks), etc.; There are two types of metal gas cabinets: wet gas cabinets and dry gas cabinets (multi-sided round thin oil seal Lingxiang, cylindrical thin oil seal and rubber membrane sealed dry gas cabinet).