CN211912533U

CN211912533U - Oil depot and petrochemical plant CO2 polyhedral tank body structure of putting out a fire

Info

Publication number: CN211912533U
Application number: CN201921329808.9U
Authority: CN
Inventors: 李乃斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-11-13
Anticipated expiration: 2029-08-08

Abstract

Oil depot and petrochemical plant CO₂The utility model provides a polyhedron jar body structure of putting out a fire, diameter D with the biggest oil tank in current oil depot and the petrochemical industry mill oil tank crowd, height H are as design parameter, it is formed by structure welding such as tank deck, jar body, cylinder intraductal support, tank bottoms, business turn over trachea, the same material of oil depot oil tank can be selected for use to the material, Q235, 16Mn, high performance steel, alloy steel etc. carry out gas tightness nondestructive test after the welding, carry out welding quality according to 8 atmospheric pressure's pressure vessel welding standard and accept, design scope is recommended to its size: the diameter of the circumscribed circle is 1/4-1D, the height is less than or equal to 1H, and the optimal value is as follows: the circumscribed circle has a diameter of 1D and a height of 1H. Tank topThe tank bottom is polygonal, and the tank body is polyhedral and is formed by splicing and welding steel plates. The inner support of the cylindrical pipe is vertically and horizontally arranged and is welded with each other to form an integral support. The inner support of the cylindrical pipe is welded on the tank bottom, and the tank body and the tank top are welded on the inner support of the cylindrical pipe. Multiple air inlet and outlet pipes may be provided.

Description

Oil depot and petrochemical plant CO2Fire extinguishing polyhedral tank body structure

Technical Field

Oil depot and petrochemical plant CO₂A fire-extinguishing polyhedral tank body structure belongs to the technical field of fire fighting and relates to CO₂A tank body structure of an air storage tank.

Background

At present, when big fire occurs in domestic and foreign oil depots and petrochemical plants, a fire truck arrives at the site for fire extinguishing, and the oil depots and the petrochemical plants are not provided with fire-fighting CO for fire extinguishing₂And the gas storage tank is in a technical blank state.

Disclosure of Invention

The diameter D and the height H of the largest oil tank in the existing oil depot and petrochemical plant oil tank group are taken as design reference parameters, as shown in the attached figure 1.

1. Oil depot and petrochemical plant CO₂The fire extinguishing polyhedral tank body structure is formed by welding structural parts such as a tank top, a tank body, a cylindrical pipe inner support, a tank bottom, an air inlet pipe and an air outlet pipe, wherein the structural parts can be made of the same material of an oil tank in an oil depot, Q235, 16Mn, high-performance steel, alloy steel and the like, the air tightness nondestructive testing is carried out after the welding, and the welding quality acceptance is carried out according to the welding standard of a pressure vessel with 8 atmospheric pressures, as shown in figure 2 of the attached drawing.

2. Oil depot and petrochemical plant CO₂The diameter and height dimension of the fire extinguishing polyhedron tank body structure recommend the design range: the diameter of the circumscribed circle is 1/4-1D, the height is less than or equal to 1H, and the optimal value is as follows: the circumscribed circle has a diameter 1D and a height 1H, as shown in FIG. 2 of the drawings.

3. The tank top and the tank bottom are polygonal and are formed by splicing and welding steel plates, and the thickness and the size are recommended within a design range: 6mm to 18mm, as shown in figures 2 and 4 of the accompanying drawings.

4. The jar body is the polyhedron bodily form, is welded by the steel sheet concatenation, and the design scope is recommended to the thickness size: 6mm to 18mm, as shown in figures 2 and 5 of the accompanying drawings.

5. The inner support of the cylindrical pipe is vertically and horizontally arranged and welded with each other to form an integral support, the recommended design range of the wall thickness dimension of the cylindrical pipe is 6mm to 20mm, the recommended design range of the diameter dimension of the cylindrical pipe at the center of the tank body is 400mm to 1000mm, the recommended design range of the diameter dimension of the cylindrical pipe at other positions is 80mm to 200mm, the inner support of the cylindrical pipe is welded on the tank bottom, and the tank body and the tank top are welded on the inner support of the cylindrical pipe, as shown in attached figures 2 and 6.

6. The diameter of the air inlet and outlet pipe is recommended to be designed within the range of 200 mm-1000 mm, and a plurality of air inlet and outlet pipes can be arranged, as shown in attached figures 2, 3, 6 and 7.

Drawings

FIG. 6, FIG. 1, oil depot, the design refers to the maximum oil tank diameter D and height H;

FIG. 2-oil depot and petrochemical plant CO₂A fire extinguishing polyhedral tank body structure;

FIG. 3-aspiration line, section B _ B, section C _ C;

FIG. 4-top and bottom of the tank;

FIG. 5-tank;

FIG. 6-cylindrical tube (used as inner support, inlet and outlet tube).

Detailed Description

As shown in fig. 1, 2, 3, 4, 5, 6, and 7:

1. and cutting and blanking the steel plate and the cylindrical pipe according to the design size.

2. The method comprises the steps of paving and butting a tank bottom steel plate on a foundation, spot welding, controlling and adjusting the overall shape deformation of the tank bottom to keep the tank bottom to be in a complete polygonal shape, then welding in a symmetrical mode until the overall welding of the tank bottom is completed, then carrying out air tightness nondestructive testing and repair welding on the gas leakage part, and carrying out tank bottom welding quality acceptance inspection according to the welding standard of a pressing force container.

3. Welding a cylindrical pipe inner support on the tank bottom, welding a polyhedral tank body on the outer side of the cylindrical pipe inner support, welding the cylindrical pipe inner support and the polyhedral tank body upwards in one section until all the cylindrical pipe inner supports and the polyhedral tank body are welded, and finally welding the tank top. In the welding process, spot welding, controlling and adjusting the deformation of the whole shape, then welding in a symmetrical mode until all welding is completed, then carrying out air tightness nondestructive testing, repairing welding air leakage positions, and carrying out welding quality acceptance according to the welding standard of the pressing-force container.

4. Welding the air inlet pipe and the air outlet pipe according to a designed position, performing air tightness nondestructive testing and repair welding on the air leakage position after welding, and performing welding quality acceptance according to a welding standard of the pressing-force container.

Claims

1. Oil depot and petrochemical plant CO₂The utility model provides a polyhedron jar body structure of putting out a fire, with diameter D, the height H of the biggest oil tank in current oil depot and petrochemical industry mill oil tank crowd as design parameter, it is the polyhedron jar that the structural component welding such as polygon tank deck, polygon jar body, cylinder intraductal support, polygon tank bottoms, business turn over trachea formed, characterized by: the tank body is polyhedral, the top and bottom of the tank are polygonal, and the tank is made of steel plateSplicing and welding, wherein each surface of the polyhedron is a plane, and the surfaces of the polyhedron are intersected to form a ridge; the inner support of the cylindrical pipe is vertically and horizontally arranged and is welded with each other to form an integral support; the cylindrical pipe inner support is welded on the tank bottom, and the tank body and the tank top are welded on the cylindrical pipe inner support and can be provided with a plurality of air inlet and outlet pipes.

2. The oil depot and petrochemical plant CO of claim 1₂The polyhedral tank body structure of putting out a fire, characterized by:

the materials can be selected from the same materials of oil reservoirs and oil tanks, Q235, 16Mn, high-performance steel, alloy steel and the like, the air tightness nondestructive test is carried out after welding, and the welding quality acceptance is carried out according to the welding standard of pressure vessels with 8 atmospheric pressures.

3. The oil depot and petrochemical plant CO of claim 1₂The polyhedral tank body structure of putting out a fire, characterized by:

the recommended design range of the size is as follows: the diameter of the circumscribed circle is 1/4-1D, the height is less than or equal to 1H, and the optimal value is as follows: the circumscribed circle has a diameter of 1D and a height of 1H.