CN209667855U - A kind of buried horizontal tank top opening protective device - Google Patents
A kind of buried horizontal tank top opening protective device Download PDFInfo
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- CN209667855U CN209667855U CN201822180195.9U CN201822180195U CN209667855U CN 209667855 U CN209667855 U CN 209667855U CN 201822180195 U CN201822180195 U CN 201822180195U CN 209667855 U CN209667855 U CN 209667855U
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- adapter tube
- sleeve
- spring
- protective device
- annular
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Abstract
The utility model discloses a kind of buried horizontal tank top opening protective devices, are mainly made of sleeve, spring and adapter tube；Sleeve is set in adapter tube outside, and the two coaxial arrangement forms annular space between sleeve lining and adapter tube outer wall；Spring is set in annular space, and spring is fixed on adapter tube outer wall, and the axial direction of spring is axial parallel with adapter tube, and spring is in contact with sleeve lining, and sleeve bottom is equipped with annular bottom plate.The additional force acted on adapter tube and moment of flexure can be effectively reduced in the utility model, avoid adapter tube itself and adapter tube that strength failure or fatigue rupture occurs with cylinder junction.
Description
Technical field
The utility model relates to the protection facilities of tank top opening, relate in particular to a kind of buried horizontal tank top
Opening protection device.
Background technique
Chinese patent CN201520554527.9 discloses a kind of liquid hydrocarbon storage device using buried horizontal tank, storage
On the basis of tank places pile foundation or casting bed, tank body is covered by overburden layer, and the top of tank body is equipped with manhole, and technique interface tube is opened
Opening, the mouthpieces such as mouth well stretch out overburden layer.Above-mentioned buried horizontal tank exists following insufficient: (1) when charging, blowdown or
Person's low-temperature storage, tank body heating, cooling will cause storage tank and axial elongation or contraction occur in length direction；(2) storage tank it is long when
Between be on active service, basis certain nonuniform settlement can occur, to cause tank body bending deformation；(3) when earthquake occurs, the movement on ground
It will cause earthing to act on mouthpiece random shock.Under above-mentioned factor effect, tank body earthing can be produced tank body upper opening
Raw biggish additional force and moment of flexure easily cause mouthpiece itself or mouthpiece and storage tank junction generation strength failure or tired
Labor is destroyed, to cause the leakage of tank inside medium, and due to storage tank earthing, mouthpiece is not easy to examine with storage tank junction
It surveys, more aggravates the presence of risk.Conventional design method by being uniformly arranged diagonal brace in adapter tube surrounding, and increase adapter tube wall thickness with
To improve the bearing capacity of opening, the above method has the following problems local cylinder wall thickness: (1) by setting diagonal brace, increasing
The rigidity of adapter tube, but when receiving earthing additional load, diagonal brace is excessive with cylinder junction and with adapter tube junction local stress,
The effect of tank body hot and cold alternation or the variation of foundation uneven settlement, easily cause diagonal brace and cylinder junction and with adapter tube junction
Strength failure or fatigue rupture occurs；(2) diagonal brace supports, and earthing butt tube random shock acts on when not resisting earthquake；(3) by
It is equipped with diagonal brace in mouthpiece, adapter tube outer wall is not easy that protective layer is arranged, if there is sharp hard object in earthing, easily causes adapter tube outer
Wall erosion resistant coating is pierced through by sharp hard object, corrosion failure occurs, to weaken its bearing capacity；(4) diagonal brace and adapter tube welding connect
It connects, replacement not easy to disassemble, contacts friction with earthing for a long time, easily corrode, bearing capacity is difficult to ensure.
Utility model content
Strength failure or fatigue rupture easily occurs in order to solve adapter tube receiving earthing additional load of the existing technology, connects
The pipe outer wall technical problem inconvenient there are corrosion risk and maintenance, the utility model provide a kind of buried horizontal tank top
Opening protection device.
Buried horizontal tank top opening protective device provided by the utility model is mainly by sleeve, spring and adapter tube group
At；Sleeve is set in adapter tube outside, and the two coaxial arrangement forms annular space between sleeve lining and adapter tube outer wall；It is annular empty
Interior setting spring, spring are fixed on adapter tube outer wall, and the axial direction of spring is axial parallel with adapter tube, and spring connects with sleeve lining
Touching, sleeve bottom are equipped with annular bottom plate.
The annular bottom plate can be elastic bottom plate, or stiff baseplate；When annular bottom plate is stiff baseplate, rigidity
Cyclic annular elastomeric pad, annular resilient pad are covered there are annular gap between the centre bore and adapter tube outer wall of bottom plate, on annular gap
Piece can be rubber sheet gasket or corrugated plating.
The sleeve is spliced by two semicircular cylinders, easy to disassemble.The optional various wear-and corrosion-resistant materials of sleeve material, packet
Metal and nonmetallic materials are included, metal material outer surface need to apply anticorrosive paint or using corrosion resistant alloy, the optional pottery of nonmetallic materials
Porcelain, plastics or polyester, such as glass reinforced plastic or reinforced epoxy material, certainly it is also an option that other suitable materials.
The spring is elliptical spiral spring, is distributed in annular space along adapter tube even circumferential, quantity can basis
It needs to be determined that generally 3~6；Suitable various modes can be used in the fixation of spring, and pressing plate such as can be used and bolt is fixed on
On adapter tube outer wall, it can also be directly welded on adapter tube outer wall or be fixed on adapter tube outer wall using riveting method.
Rainwater enters in annular space in order to prevent, rain visor is equipped with above annular space, rain visor, which can be fixed on, to be connect
In pipe outer wall, it can also be fixed on sleeve；When rain visor is fixed on adapter tube outer wall, sleeve can be suspended to screening by suspension hook
Below rain plate；When rain visor is fixed on sleeve, rain visor is made of elastic material.
Using the utility model, have it is following the utility model has the advantages that
(1) when horizontal tank due to expanding with heat and contract with cold, when foundation settlement, with earthing relative displacement, earthing load occur for adapter tube
Effect moves horizontally sleeve or lateral bending, and due to being along the circumferential direction uniformly provided with spring between sleeve and adapter tube, spring can absorb
All directions largely deform, and effectively reduce the additional force acted on adapter tube and moment of flexure, avoid itself and adapter tube of adapter tube with
Strength failure or fatigue rupture occur for cylinder junction；
(2) when an earthquake occurs, spring has vibration damping and energy-absorbing effect, and earthing is effectively reduced and makees to the impact that storage tank is taken over
With；
(3) casing uses wear-and corrosion-resistant material, has excellent resistance to corrosion, makes mouthpiece is not direct to connect with earthing
Touching can effectively avoid overburden layer to hard object docking tube outer surface damage sharp in its corrosiveness and earthing；
(4) casing is detachable part, in maintenance, can be replaced according to practical corrosion or damaged condition；
(5) casing top is equipped with rain visor, can prevent rainwater from entering in sleeve, and spring is avoided to get rusty and the corruption of adapter tube outer wall
Erosion.
The utility model can be used for storing liquid hydrocarbon large-scale earthing formula tank top opening, as manhole, technique opening with
And the protection structure of open well, it is equally applicable to buried horizontal vessel top opening protection in petroleum refining, chemical industry or gas station.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model protective device；
Fig. 2 is A-A cross-sectional view in Fig. 1；
Fig. 3 is sleeve bottom enlarged structure schematic diagram shown in position I in Fig. 1；
Fig. 4 is spring shown in position II and adapter tube attachment structure schematic diagram in Fig. 2.
In figure: 1- adapter tube, 2- storage tank drum, 3- overburden layer, 4- sleeve, 5- spring, 6- suspension hook, 7- rain visor, 8- pressing plate,
9- annular resilient gasket, 10- bolt, 11- annular bottom plate.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
As shown in Figure 1 to 4, the buried horizontal tank top opening protective device of the utility model is mainly by adapter tube 1, sleeve
4, spring 5, suspension hook 6, rain visor 7, pressing plate 8, annular resilient gasket 9 and annular bottom plate 11 form.In 1 outside of roof opening adapter tube
Sleeve 4 is set, and sleeve 4 is spliced by two semicircular cylinders, easy to disassemble.In annular space between sleeve 4 and adapter tube 1
It is even to be provided with four elliptical spiral springs 5.Spring 5 is fixed by bolt 10 inside spring 5 as shown in figure 4, pressing plate 8 passes through
On 2 outer wall of adapter tube, 8 both ends of pressing plate are fixed by being welded in the bolt 10 of 1 outer wall of adapter tube in advance with 1 outer wall of adapter tube.4 bottom of sleeve is set
There is annular bottom plate 11, be laid with annular resilient gasket 11 on the centre bore of annular bottom plate 11 and the gap of 1 outer wall of adapter tube, plays sealing and make
With, prevent 4 outer wall overburden layer 3 of sleeve enter sleeve 4 in.1 top of adapter tube is equipped with rain visor 7, and rain visor 7 and 1 outer wall of adapter tube are logical
Cross welded connecting.Sleeve 4 is suspended to 7 lower section of rain visor by suspension hook 6.Suspension hook 6 is distributed along 4 even circumferential of sleeve, sets four altogether.
Certainly, rain visor 7 can also be fixed on sleeve 4.
4 material of sleeve of the buried horizontal tank top opening protective device of the utility model can be glass reinforced plastic or reinforced epoxy
Resin, about 10~20mm are thick.4 bottom of sleeve is higher by 3 outer surface of overburden layer at the top of sleeve 4 away from storage tank drum 2 outer wall about 250mm
About 100mm.Spacing about 100~200mm of sleeve 4 and 1 outer wall of adapter tube.Spring 5 is elliptical helical spring, be can be used not
Become rusty steel or the carbon steel with coated anti-corrosion layer.Rain visor 7 is away from 4 top about 100~200mm of sleeve.7 overall diameter of rain visor is greater than sleeve
4 outer diameters about 100mm.Rain visor 7 can make of unequal angle, and material can be carbon steel or low alloy steel.
The utility model opening protection device is applicable to opening for the novel buried horizontal tank top specification of DN400~2000
Mouthful.
Claims (8)
1. a kind of buried horizontal tank top opening protective device, it is characterised in that: be mainly made of sleeve, spring and adapter tube；
Sleeve is set in adapter tube outside, and the two coaxial arrangement forms annular space between sleeve lining and adapter tube outer wall；In annular space
Spring is set, spring is fixed on adapter tube outer wall, and the axial direction of spring is axial parallel with adapter tube, and spring is in contact with sleeve lining,
Sleeve bottom is equipped with annular bottom plate.
2. protective device according to claim 1, it is characterised in that: the annular bottom plate is elastic bottom plate.
3. protective device according to claim 1, it is characterised in that: the annular bottom plate is stiff baseplate, stiff baseplate
Centre bore and adapter tube outer wall between cyclic annular elastomeric pad is covered there are annular gap, on annular gap.
4. protective device according to claim 1, it is characterised in that: the spring is elliptical spiral spring, in annular
It is distributed in space along adapter tube even circumferential.
5. protective device according to claim 1, it is characterised in that: be equipped with rain visor above the annular space.
6. protective device according to claim 5, it is characterised in that: the rain visor is fixed on adapter tube outer wall, sleeve
It is suspended to below rain visor by suspension hook.
7. protective device according to claim 5, it is characterised in that: the rain visor is fixed on sleeve, rain visor by
Elastic material is made.
8. protective device according to claim 1, it is characterised in that: the sleeve is spliced by two semicircular cylinders, set
Cylinder material is glass reinforced plastic or reinforced epoxy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822180195.9U CN209667855U (en) | 2018-12-25 | 2018-12-25 | A kind of buried horizontal tank top opening protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822180195.9U CN209667855U (en) | 2018-12-25 | 2018-12-25 | A kind of buried horizontal tank top opening protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209667855U true CN209667855U (en) | 2019-11-22 |
Family
ID=68563393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822180195.9U Active CN209667855U (en) | 2018-12-25 | 2018-12-25 | A kind of buried horizontal tank top opening protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209667855U (en) |
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2018
- 2018-12-25 CN CN201822180195.9U patent/CN209667855U/en active Active
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