CN201121431Y

CN201121431Y - High-capacity underground oil storage warehouse

Info

Publication number: CN201121431Y
Application number: CNU2007201818003U
Authority: CN
Inventors: 曾建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-24
Filing date: 2007-10-24
Publication date: 2008-09-24
Anticipated expiration: 2017-10-24

Abstract

The utility model relates to a large capacity underground oil reservoir. A reservoir body is in a cylindrical shape. A reservoir body foundation is formed into an integer by a pile foundation, an anchor rod, concrete and a steel deck. A reservoir body cylinder wall is composed of a screen surrounding pile, the concrete and the steel deck, and is anchor fixed by the anchor rod. A reservoir body bottom is composed of the pile foundation, a reinforced concrete floor and the steel deck. The reservoir body adopts an inner floating roof structure, and the reservoir body top adopts a prestressed dome structure for closure. The large capacity underground oil reservoir has the advantages of stable foundation, high integral strength, high quality steel content conservation, weld proportion reduction and weld quality enhancement, has the characteristics of large oil storage capacity, high safe reliability, small occupied area, constant temperature, fire protection, explosion protection, lightning protection, earthquake resistance, static resistance, small influence on environment, low construction cost, little maintenance cost, long use period, easy prevention on serious accident occurrence, etc., and is suitable for large capacity underground oil storage construction in different regions under different geological conditions.

Description

High capacity underground oil storage

Technical field

The utility model belongs to crude oil, product oil, liquefied petroleum gas, liquid chemical storage device.

Background technology

Storage tank is oil, product oil, liquefied petroleum gas and various liquid chemical storage facilities.China's " Code for design of petroleum depots " (GB50074-2002) stipulates: (1) oil storage tank is built on the ground.(2) one-level storage tank farm total measurement (volume) 10 ten thousand steres, secondary storage tank farm total measurement (volume) 30,000-10 ten thousand steres, three grades of storage tank farm volume 10,000-3 ten thousand steres.(3) same floating roof tank group total capacity should be greater than 60 ten thousand steres.(4) fire-protection distance is 24 meters between the floating top oil tank.Domestic present maximum ground single-deck floating roof tank volume 10 ten thousand steres, known in the world maximum ground tank volume reaches 20 ten thousand steres.China is the second-biggest-in-the-world oil consumption country, and the petroleum import amount increases year by year, and oil reserve is concerning national strategy safety and economic stability, and big capacity storage tank farm becomes the key facility of oil industry.Consider that from national security, environmental protection and economy existing storage tank farm standard can not adapt to the economic development needs, develop undergroundization, maximization, highly reliable storage tank farm and become inexorable trend.

The subject matter of ground large oil storage tank is: (1), storage tank cost height: storage tank maximizes the tank body material has been proposed very high performance requirement, high strength, high impact forces, low impurity content, weldability, low-welding crack-sensitive etc.Large-scale storage tank makes tank body responsive more to brittle fracture because the employing of high strength steel and tank skin thicken.Thickening of steel plate increased welding difficulty and welding heat affected zone increasing, can not under the situation of heat treatment elimination residual stress fragility harm be increased.Be subjected to the restriction of steel plate model, quality, thickness, technology, the cost of large-scale storage tank is more and more higher.(2), large-scale storage tank improves the requirement of ground, and serious harm very easily takes place during ground generation sedimentation.(3), floor space is big, safe distance is big at interval, pipeline network construction cost height, soil cost increase.(4), tank body is to the weather conditions sensitivity, high temperature, low temperature, thunder and lightning all can work the mischief to tank body.(5), to ambient influnence greatly, easily pollute, be unfavorable for environmental protection.(6), security reliability is poor, is subject to fire, thunder and lightning, earthquake and the destructive harm that attacks.Particularly large-scale storage tank farm can the serious harm social safety in case serious accident takes place.

Summary of the invention

The purpose of this utility model provides the high capacity underground oil storage of a kind of undergroundization, big capacity, high reliability, low cost, structure optimization, low running cost, high security.

The purpose of this utility model is achieved through the following technical solutions.

A kind of high capacity underground oil storage, the storehouse body is built in underground, and this oil depot body is a cylinder; The storehouse body comprises and encloses curtain stake or diaphragm wall, concrete and steel plate layer constitute overall structure, by being connected to the anchor rod anchored of steel plate layer; Body bottom, storehouse is made up of pile foundation, reinforced concrete floor and steel plate layer; Body top, storehouse is the inner floating roof structure, around the floating plate of inner floating roof structure elastic sealing element is installed, and this elastic sealing element can fluctuate along storehouse body inwall; Body top, storehouse is by the sealing of prestressing force dome structure and ventilating pipe is installed, and breather valve and spark arrester are installed on the ventilating pipe; Body ground, storehouse periphery has been built fire wall; Soil cover is arranged at body dome top, storehouse, and body bottom in storehouse is equipped with some turnover oil pipes; Storehouse body steel plate inwall has corrosion-resistant coating.

Storehouse of the present utility model body can all be built in underground, the security reliability height, and floor space is little, constant temperature, little to ambient influnence, construction cost is low, be easy to safeguard.Ground can design according to geological conditions, determines diameter, number of steel bars and the degree of depth of pile foundation.The storehouse body bears soil pressure, water pressure by the base integral structure, and the steel plate layer mainly bear sealing function, so bulk strength increases substantially except that bearing the part bearing capacity.Storehouse not sedimentation of body, be not filled with, unshift, indeformable, antiseismic, guaranteed the integrally-built high reliability of storage tank farm.

Description of drawings

Accompanying drawing is the overall structure schematic diagram of the utility model high capacity underground oil storage.

Among the figure: 1. curtain pile (diaphragm wall) and layer of concrete, 2. steel plate layer, 3. anchor pole, 4. pile foundation, 5. at the bottom of the steel concrete, 6. inner floating roof floating plate, 7. floating plate seal, 8. prestressing force dome, 9. ventilating pipe and breather valve, spark arrester, 10. fire wall, 11. overburden layers, 12. the turnover oil pipe, 13. corrosion-resistant coatings.

The specific embodiment

Referring to accompanying drawing, high capacity underground oil storage, the storehouse body all is built in underground, and the storehouse body is a cylinder.The storehouse body constitutes overall structure by enclosing curtain stake or diaphragm wall, concrete 1 and steel plate layer 2, by anchor pole 3 anchorings that are connected to steel plate layer 2.Body bottom, storehouse is made up of pile foundation 4, reinforced concrete floor 5 and steel plate layer 2.Body top, storehouse is inner floating roof structure 6, around the floating plate of inner floating roof structure 6 elastic sealing element 7 is installed, and this elastic sealing element 7 can fluctuate along storehouse body inwall; Body top, storehouse is by 8 sealings of prestressing force dome structure and ventilating pipe 9 is installed, and breather valve and spark arrester are installed on the ventilating pipe 9.Body ground, storehouse periphery has been built fire wall 10, and soil cover 11 is arranged at body dome top, storehouse, and body bottom in storehouse is equipped with some turnover oil pipes 12, and storehouse body steel plate inwall has corrosion-resistant coating 13.

The storehouse body constitutes overall structure by pile foundation or diaphragm wall,

concrete

1,4, anchor pole 3, reinforced concrete floor 5; Ground can design according to geological conditions, determines diameter, number of steel bars and the degree of depth of pile foundation.

The storehouse body forms the high strength monolithic structure by pile foundation, concrete 1 with steel plate layer 2, in underground isoperibol, can reduce tank skin steel plate thickness and high-quality rolled steel dosage, reduce welding proportion, improve welding procedure, improve welding quality, overcome the harm of steel plate black brittleness, improve application life, reduce engineering cost.

The storehouse body adopts inner floating roof structure 6, elastic sealing element 7 is installed around the inner floating roof floating plate also can fluctuates along storehouse body inwall.8 sealings of prestressing force dome are adopted at body top, storehouse, and ventilating pipe 9 is installed on the dome 8, breather valve and spark arrester are installed, surface structures fire wall 10 and overburden layer 11 on the ventilating pipe 9.

The storehouse body is equipped with some turnover oil pipes 12; Storehouse body steel plate internal layer has corrosion-resistant coating 13.

The utility model is applicable to different mediums such as crude oil, product oil, heavy oil, liquefied petroleum gas and liquid chemical.It builds the storage tank farm construction that place is applicable to different regions such as Plain, coastal, riverine, harbour, surrounding city, different geological conditionss.

Sport technique segment of the present utility model is as follows:

1, design the foundation structure of storage tank farm according to geological conditions, 20 meters-50 meters of storage tank farm economic depths, 50 meters-100 meters of diameters, single storage capacity amasss 100,000-40 ten thousand steres.Also can be used for 30,000-10 ten thousand stere storage tank farms.This mode can be used to build the degree of depth equally and surpass 50 meters, and diameter surpasses 100 meters ultra-large type storage tank farm, but the construction cost increase is less economical.

2, adopt underground deep foundation engineering technologies such as enclosing curtain stake or diaphragm wall, pile foundation, anchoring to build storage tank farm, the intensity designability is strong, and technological means is abundant, and safeguard measure is perfect, and the technology maturity height can guarantee the high reliability of storage tank farm.The definition of curtain pile described in the utility model, pile foundation comprises pile foundation construction technology such as auger boring pouring pile, rotary digging drilling hole bored concrete pile, preformed pile, steel pipe pile.

3, carry out excavation of foundation pit, precipitation, anchoring and the construction of foundation ditch negative after curtain pile is finished.

4, site welding technology storage tank farm steel plate layer is installed into flowline.Assembly welding finishes and is enclosing fluid concrete formation overall structure between curtain stake and the steel plate layer.

5, the steel plate layer carries out anti-corrosion treatment.

6, the inner floating roof floating plate is installed.

7, dome structure is installed.

8, build fire wall, overburden layer and ancillary facility.

Major advantage of the present utility model is:

1, storage tank farm all is built in undergroundly, and floor space is little, constant temperature, fire prevention, explosion-proof, lightning protection Electric, antistatic, security reliability is high, is easy to take precautions against destructive infringement and serious accident generation, Can reach the one-level fire-protection standard.

2, adopt pile foundation, anchoring, armored concrete and steel plate overall structure, the storehouse body is stable, Be built on the rock, not sedimentation, be not filled with, indeformable, unshift, shock resistance is good, has improved whole Body intensity has guaranteed high reliability.

3, storage capacity is big, and single storage capacity is long-pending can to reach 40 ten thousand steres, and several banks can form greatly The type reserve can satisfy the needs in harbour, refinery factory, strategic reserves storehouse.

4, underground is isoperibol, is not subjected to the impact of temperature, climate change, reduces low temperature to steel The fragility impact of material increases service life.

5, reduce the high-quality rolled steel dosage, reduce welding proportion and welding difficulty, can adopt thin steel plate to make the storehouse body, help improving welding procedure and improve welding quality, reduce the harm of steel fragility, improve safety.

6, the steel plate layer carries out anti-corrosion treatment, improves the antiseep anti-corrosion capability, increases application life.

7, the underground oil storage overall tightness is good, can reduce storage tank farm at interval, reduces floor space, is beneficial to environmental protection and beautification of landscape.

8, can reduce construction land, reduce pipeline and ancillary facility quantity, reduce rolled steel dosage and welding capacity, reducing the construction costs.

9, be easy to management, the maintenance management expense is low.

10, be applicable to different mediums such as storing crude oil, product oil, liquefied petroleum gas, liquid chemical.

11, be applicable to and under different regions, different geological conditionss such as Plain, coastal, riverine, harbour, surrounding city, build highly reliable high capacity underground oil storage.

Claims

1, a kind of high capacity underground oil storage, the storehouse body is built in underground, it is characterized in that: this oil depot body is a cylinder; The storehouse body comprises and encloses curtain stake or diaphragm wall, concrete (1) and steel plate layer (2) formation overall structure, by the anchor pole that is connected to steel plate layer (2) (3) anchoring; Body bottom, storehouse is made up of pile foundation (4), reinforced concrete floor (5) and steel plate layer (2); Body top, storehouse is inner floating roof structure (6), around the floating plate of inner floating roof structure (6) elastic sealing element (7) is installed, and this elastic sealing element (7) can fluctuate along storehouse body inwall; Ventilating pipe (9) is sealed and be equipped with in body top, storehouse by prestressing force dome structure (8), and ventilating pipe is equipped with breather valve and spark arrester on (9); Body ground, storehouse periphery has been built fire wall (10); Soil cover (11) is arranged at body dome top, storehouse, and body bottom in storehouse is equipped with some turnover oil pipes (12); Storehouse body steel plate inwall has corrosion-resistant coating (13).