CN205686926U - A kind of oil storage tank hatch frame - Google Patents
A kind of oil storage tank hatch frame Download PDFInfo
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- CN205686926U CN205686926U CN201620536201.8U CN201620536201U CN205686926U CN 205686926 U CN205686926 U CN 205686926U CN 201620536201 U CN201620536201 U CN 201620536201U CN 205686926 U CN205686926 U CN 205686926U
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Abstract
The utility model discloses a kind of oil storage tank hatch frame, to solve, existing large-scale oil storage tank is on-the-spot on the material bottom shell plate as high strength steel increases the problem that adapter is relatively difficult.This utility model is provided with newly-increased adapter assembly on bottom shell plate (5), newly-increased adapter assembly includes newly-increased adapter (2), inserts plate (1) and stiffening plate (3), inserts and is equipped with perforate on plate, stiffening plate and bottom shell plate.Newly-increased adapter is passed by the perforate inserted on plate and stiffening plate, is welded to connect between the edge of the newly-increased perforate taken over and insert on plate and stiffening plate.Insert plate and be positioned at the perforate on bottom shell plate, be welded to connect between the edge of the perforate on the outward flange of insertion plate and bottom shell plate.Stiffening plate fits in the outside inserting plate, is welded to connect between outward flange and the insertion plate of stiffening plate.It is on-the-spot on the bottom shell plate of high strength steel to increase adapter that this utility model scheme is applicable on large-scale oil storage tank, material.
Description
Technical field
This utility model relates to petrochemical industry for storing the hatch frame of the oil storage tank of crude oil or product oil.
Background technology
At the storing and transporting system of petrochemical industry, vertical and cylindrical oil storage tank is generally used to store crude oil or product oil.State
Interior built large-scale oil storage tank list tank volume has reached 15 ten thousand steres, and volume is more than or equal to the large-scale oil storage tank of 10 ten thousand steres
Also there are 1,000 multiple stage.Above-mentioned large-scale oil storage tank, tank skin generally uses Chinese Industrial Standards (CIS) GB19189 2011 " pressure vessel
With quenched and tempered high tensile strength plate " described in 12MnNiVR high-strength steel sheet or the SPV490Q high-strength steel sheet of import.Bottom shell plate
(being made up of plurality of steel plates), thickness was usually not less than 30 millimeters, and the tensile strength of steel plate is 610～730MPa, and yield strength >=
490MPa, the actual yield tensile ratio of steel plate is mostly more than 0.85.
Oil storage tank, in order to operate with, be provided with oil storage tank hatch frame on bottom shell plate and (includes adapter, sometimes also
There is stiffening plate).For large-scale oil storage tank, the length of every block of bottom shell plate is usually not less than 6 meters (generally 10～14 meters), wide
Degree is not less than 2 meters (generally 2.4～4 meters).According to Chinese Industrial Standards (CIS) GB50341 2014 " vertical cylinder steel welding oil tank
Design specification ", the most relevant specification such as Unite States Standard API650 2013 " Welded tanks for oil storage "
Requirement, if arrange on bottom shell plate adapter and stiffening plate, adapter, stiffening plate and monoblock bottom shell plate usual
It is both needed to bulk heat treatmet in postwelding carries out stove together, assembles the most at the scene, to guarantee oil storage tank after eliminating welding residual stress
Safety.
For the large-scale oil storage tank come into operation, generally require on bottom shell plate, increase adapter and stiffening plate；Can examine
Consider and use the following two kinds method.1. directly on bottom shell plate, welding is taken over and stiffening plate, and scene electrical heating carries out local
Heat treatment.Local heat treatmet makes temperature distributing disproportionation even, by the constraint between tank skin and adapter, it is impossible to make the weldering on bottom shell plate
Connect residual stress effectively to be discharged, and bottom shell plate deflection is big；Welding residual stress not only can not be completely eliminated, also may be used
Can increase additional bending stress, make oil storage tank deformation that leakage even to occur.2. the tank shell of welded and installed and floating roof is dismantled,
New bottom shell plate welds adapter and stiffening plate, carries out re-assemblying again after bulk heat treatmet in stove oil storage tank.This
The construction workload of method is big, need to again weld the big angle welding of the T-shaped between bottom shell plate and bottom edge board, near weld seam
Bottom edge board can because secondary is heated penalty, there is the biggest potential safety hazard.Based on above reason, current is large-scale
The precedent that on oil storage tank, also on-the-spot increase is not taken on the bottom shell plate that material is high strength steel, limits oil storage tank
Use.
Summary of the invention
The purpose of this utility model is to provide a kind of oil storage tank hatch frame, to solve existing large-scale oil storage tank in material
The problem that adapter is relatively difficult is increased for on-the-spot on the bottom shell plate of high strength steel.
For solving the problems referred to above, the technical solution adopted in the utility model is: a kind of oil storage tank hatch frame, its feature exists
In: it includes the newly-increased adapter assembly being located on bottom shell plate, and newly-increased adapter assembly includes newly-increased adapter, inserts plate and reinforcement
Plate, inserts and is equipped with perforate on plate, stiffening plate and bottom shell plate, and newly-increased adapter is worn by the perforate inserted on plate and stiffening plate
Cross, be welded to connect between the edge of the newly-increased perforate taken over and insert on plate and stiffening plate, insert plate and be positioned on bottom shell plate
Perforate in, insert and be welded to connect between the edge of the perforate on the outward flange of plate and bottom shell plate, stiffening plate fits in slotting
Enter the outside of plate, be welded to connect between outward flange and the insertion plate of stiffening plate.
Use this utility model, there is following beneficial effect: the welding between each parts and heat in newly-increased adapter assembly
Process and independently carry out outside oil storage tank, oil storage tank is not adversely affected.The size of newly-increased adapter assembly is much smaller than the end of piecemeal
Circle tank shell, can bulk heat treatmet in less heat-treatment furnace, more convenient, large-scale heat-treatment furnace need not be set up.Increase newly and connect
When pipe component heat is installed after processing, only insert and weld between the outward flange of plate and the edge of the perforate on oil storage tank bottom shell plate
Connecting, the welding residual stress around weld seam is little, oil tank body deformability amount is little, little on the impact of armor plate strength；According to domestic
Outward about the regulation of specification (such as GB50341 2014 " vertical cylinder steel welding storage oil tank design codes "), such weldering
Connect and need not carry out heat treatment at postwelding, thus can avoid carrying out at the scene the various problems of heat treatment.Existing at foundation ring tank
Increasing the problem existing for two kinds of methods of adapter on wallboard, this utility model can solve.
Scheme easy construction of the present utility model, workload is little, expense is low, short construction period, the position essence of newly-increased adapter
Degree height.For 10 ten thousand stere crude oil storage tanks, compared with existing dismounting tank shell and the floating roof scheme increasing adapter, adopt
The investment of about 150,000 yuans can be saved with every oil storage tank of scheme of the present utility model.
This utility model scheme is applicable on large-scale oil storage tank (single tank volume is more than or equal to 10 ten thousand steres), material
Increase adapter for on-the-spot on the bottom shell plate of high strength steel, to facilitate practical operation, the serviceability of raising oil storage tank, make storage
Oil tank is steadily, reliably run.
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.Accompanying drawing and being embodied as
Mode is not limiting as the scope that this utility model is claimed.
Accompanying drawing explanation
Fig. 1 is this utility model oil storage tank hatch frame and the partial sectional view of neighbouring parts thereof.
Fig. 2 is the A direction view in Fig. 1.
In Fig. 1 and Fig. 2, same reference numerals represents identical technical characteristic.
Detailed description of the invention
Seeing Fig. 1 and Fig. 2, what oil storage tank hatch frame of the present utility model included being located on bottom shell plate 5 newly-increased connects
Pipe assembly.Newly-increased adapter assembly includes newly-increased adapter 2, inserts plate 1 and stiffening plate 3, inserts plate 1, stiffening plate 3 and bottom shell plate
Perforate it is equipped with on 5.Newly-increased adapter 2 is passed by the perforate inserted on plate 1 and stiffening plate 3, increases adapter 2 newly and inserts plate 1 and mend
It is welded to connect between the edge of the perforate on strong plate 3.Insert plate 1 and be positioned at the perforate on bottom shell plate 5, insert outside plate 1
It is welded to connect between the edge of the perforate on edge and bottom shell plate 5.Stiffening plate 3 fits in the outside inserting plate 1, stiffening plate
It is welded to connect between outward flange and the insertion plate 1 of 3.
Oil storage tank hatch frame described in the utility model, refers to the perforate on newly-increased adapter assembly, bottom shell plate 5
And increase the insertion outward flange of plate 1 and welding between the edge of perforate on bottom shell plate 5 in adapter assembly newly.
Bottom shell plate 5, bottom edge board 6, insert the material of plate 1 and stiffening plate 3 be high strength steel (such as
12MnNiVR).The material of newly-increased adapter 2 can be carbon steel (such as No. 20 steel), low-alloy steel (such as Q345) or high strength steel
(such as 12MnNiVR).
The shape of cross section of newly-increased adapter 2 is circular.Insert plate 1 and stiffening plate 3 is the part on the face of cylinder, the face of cylinder
Radius is identical with the radius of bottom shell plate 5.Insert plate 1 and stiffening plate 3 with the just throwing on the vertical plane each faced
Shadow is shaped as annular.The perforate on bottom shell plate 5 orthographic projection on the vertical plane faced with self is shaped as circle
Shape.
The outer diameter D of newly-increased adapter 2 is generally more than 80 millimeters.When this outer diameter D is more than 300 millimeters, newly-increased adapter 2 and
Gusset 4 can be set between stiffening plate 3, gusset 4 and newly-increased be welded to connect between adapter 2 and stiffening plate 3.Gusset 4 falls within newly
Increase adapter assembly, 2～8 pieces can be uniformly arranged.
Insert the thickness thickness not less than bottom shell plate 5 of plate 1 and stiffening plate 3, insertion plate 1 and bottom shell plate 5
Thickness is generally 30～45 millimeters.Insert distance a between plate 1 outward flange and stiffening plate 3 outward flange and with bottom edge board 6
Between distance c, all not less than 200 millimeters.Girth joint is passed through between bottom bottom shell plate 5 top and the second circle tank shell 7
Connect, insert distance b between plate 1 outward flange and this girth joint nor less than 200 millimeters.
Newly-increased adapter assembly needs butt welded seam to check after welding, bulk heat treatmet.Stiffening plate 3 is provided with telltale hole
8, whether leak for the weld seam being thus passed through on gas, the newly-increased adapter assembly of test.After inspection, pass the test, plate 1 will be inserted
It is placed in the perforate on bottom shell plate 5, carries out the weldering between the edge of perforate on insertion plate 1 outward flange and bottom shell plate 5
Connect (preferably using two-sided butt welding).All welding that this utility model relates to and Non-Destructive Testing, all should meet GB50128 2014
The requirement of specifications such as " vertical cylinder steel welding Storage Tank Construction specifications ".Insert plate 1 outward flange and perforate on bottom shell plate 5
Edge between welding complete after, also answer butt welded seam to carry out vacuum tank leak test or kerosene leak test.
Claims (2)
1. an oil storage tank hatch frame, it is characterised in that: it includes the newly-increased adapter assembly being located on bottom shell plate (5),
Newly-increased adapter assembly includes newly-increased adapter (2), inserts plate (1) and stiffening plate (3), inserts plate (1), stiffening plate (3) and foundation ring tank
Wallboard is equipped with perforate on (5), and newly-increased adapter (2) is passed by the perforate inserted on plate (1) and stiffening plate (3), newly-increased adapter (2)
And it is welded to connect between the edge of the perforate inserted on plate (1) and stiffening plate (3), inserts plate (1) and be positioned on bottom shell plate (5)
Perforate in, insert plate (1) outward flange and bottom shell plate (5) on perforate edge between be welded to connect, stiffening plate (3)
Fit in the outside inserting plate (1), be welded to connect between outward flange and insertion plate (1) of stiffening plate (3).
Oil storage tank hatch frame the most according to claim 1, it is characterised in that: between newly-increased adapter (2) and stiffening plate (3)
It is provided with gusset (4), is welded to connect between gusset (4) and newly-increased adapter (2) and stiffening plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536201.8U CN205686926U (en) | 2016-06-03 | 2016-06-03 | A kind of oil storage tank hatch frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536201.8U CN205686926U (en) | 2016-06-03 | 2016-06-03 | A kind of oil storage tank hatch frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205686926U true CN205686926U (en) | 2016-11-16 |
Family
ID=57260697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620536201.8U Active CN205686926U (en) | 2016-06-03 | 2016-06-03 | A kind of oil storage tank hatch frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205686926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111579A (en) * | 2020-01-08 | 2020-05-08 | 张化机（苏州）重装有限公司 | Reinforcement plate structure |
-
2016
- 2016-06-03 CN CN201620536201.8U patent/CN205686926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111579A (en) * | 2020-01-08 | 2020-05-08 | 张化机（苏州）重装有限公司 | Reinforcement plate structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |