CN110604891A

CN110604891A - Fire-fighting CO for oil depot and petrochemical plant2Gas storage tank _ elliptic cylinder tank body structure

Info

Publication number: CN110604891A
Application number: CN201910757293.0A
Authority: CN
Inventors: 李乃斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2019-12-24

Abstract

Fire-fighting CO for oil depot and petrochemical plant₂Gas holder _ elliptic cylinder jar tank structure to the diameter D of 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, the elliptic cylinder jar body, the intraductal support of cylinder, 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, weld quality according to 8 atmospheric pressure's pressure vessel welding standard and accept, its size recommends the design scope: the diameter is 1/4-1D, the height is less than or equal to 1H, and the optimal value is as follows: diameter 1D, high 1H, tank deck, tank bottoms are oval, and the jar body is oval cylindricality, welds by the steel sheet concatenation, and the cylinder intraductal support is arranged for perpendicular, level, welds an integral support that forms each other, and the cylinder intraductal support welding is on the tank bottom, and the jar body, the welding of tank deck is on the cylinder pipeThe inner support is provided with a plurality of air inlet and outlet pipes.

Description

Fire-fighting CO for oil depot and petrochemical plant2Gas storage tank _ elliptic cylinder tank body structure

Technical Field

Fire-fighting CO for oil depot and petrochemical plant₂Gas holder _ elliptic cylinder jar tank body structure belongs to fire control technical field, 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. Fire-fighting CO for oil depot and petrochemical plant₂Gas storage tank _ elliptic cylinder tank body structureThe welding device is formed by welding structural components such as a tank top, an elliptic cylinder tank body, a cylindrical pipe inner support, a tank bottom, an air inlet and outlet pipe and the like, wherein the structural components can be made of the same material of oil tanks of an oil depot, Q235, 16Mn, high-performance steel, alloy steel and the like, the welding device is used for carrying out air tightness nondestructive testing after welding, and the welding quality is checked and accepted according to the welding standard of a pressure container with 8 atmospheric pressures, as shown in figure 2 of the attached drawing.

2. Fire-fighting CO for oil depot and petrochemical plant₂The diameter and height size of the gas storage tank _ elliptic cylinder tank body structure recommend the design range: the diameter is 1/4-1D, the height is less than or equal to 1H, and the optimal value is as follows: diameter 1D, height 1H, as shown in FIG. 2 of the drawings.

3. Tank deck, tank bottoms are oval, are 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.

4. The jar body is the elliptic cylinder form, is welded by the steel sheet concatenation, and the design scope is recommended to the thickness size: 6mm to 18mm, as shown in the attached figures 2, 3 and 6.

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, 3 and 7.

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 and 4.

Drawings

In the figure 7 sheet of paper,

FIG. 1 is a photograph of a prior art oil depot, the design being referenced to its dimension diameter D and height H;

FIG. 2-oil depot and petrochemical plant fire-fighting CO₂The air storage tank _ elliptic cylinder tank body structure is shown in a front view;

FIG. 3-oil depot and petrochemical plant fire extinguishing CO₂Gas storage tankA prolate cylindroid tank body structure, a top view (A _ A section);

FIG. 4-oil depot and petrochemical plant fire extinguishing CO₂The air storage tank is of an elliptic cylinder tank body structure, an air inlet pipe, an air outlet pipe, a B _ B section and a C _ C section;

FIG. 5-oil depot and petrochemical plant fire extinguishing CO₂The gas storage tank is an elliptic cylinder tank body structure, a tank top and a tank bottom;

FIG. 6-oil depot and petrochemical plant fire extinguishing CO₂The air storage tank _ elliptic cylinder tank body structure comprises a tank body;

FIG. 7-oil depot and petrochemical plant fire extinguishing CO₂Air storage tank _ elliptic cylinder tank body structure, cylindrical pipe (as the inner support).

Detailed Description

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 complete and oval, then welding in a symmetrical mode until the overall welding of the tank bottom is completed, carrying out air tightness nondestructive testing and repair welding on the air 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 an elliptic cylinder tank body on the outer side of the cylindrical pipe inner support, welding the cylindrical pipe inner support and the elliptic cylinder tank body by one section upwards until all the cylindrical pipe inner supports and the elliptic cylinder 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. Fire-fighting CO for oil depot and petrochemical plant₂Gas storage tank-elliptic cylinder tank body structure for existing oil depot and petrochemical industryThe diameter D and the height H of the largest oil tank in the oil tank group of the factory are taken as design parameters, and the oil tank is formed by welding structural components such as a tank top, an elliptic cylinder tank body, a cylindrical pipe inner support, a tank bottom, an air inlet pipe and an air outlet pipe.

2. The oil depot and petrochemical plant fire fighting CO of claim 1₂Gas holder _ elliptic cylinder jar tank body structure, 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 fire fighting CO of claim 1₂Gas holder _ elliptic cylinder jar tank body structure, characterized by:

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

4. The oil depot and petrochemical plant fire fighting CO of claim 1₂Gas holder _ elliptic cylinder jar tank body structure, characterized by:

the tank top and the tank bottom are oval and are formed by splicing and welding steel plates.

5. The oil depot and petrochemical plant fire fighting CO of claim 1₂Gas holder _ elliptic cylinder jar tank body structure, characterized by:

the tank body is in an elliptic cylinder shape and is formed by splicing and welding steel plates.

6. The oil depot and petrochemical plant fire fighting CO of claim 1₂Gas holder _ elliptic cylinder jar tank body structure, characterized by:

the inner support of the cylindrical pipe is vertically and horizontally arranged and is welded with each other to form an integral support.

7. The oil depot and the stone of claim 1Chemical plant fire-fighting CO₂Gas holder _ elliptic cylinder jar tank body structure, characterized by:

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.