CN107476329A - Fused salt storage tank insulation construction basis - Google Patents
Fused salt storage tank insulation construction basis Download PDFInfo
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- CN107476329A CN107476329A CN201710914364.4A CN201710914364A CN107476329A CN 107476329 A CN107476329 A CN 107476329A CN 201710914364 A CN201710914364 A CN 201710914364A CN 107476329 A CN107476329 A CN 107476329A
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- storage tank
- insulation construction
- fused salt
- concrete floor
- reinforced concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/38—Foundations for large tanks, e.g. oil tanks
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of fused salt storage tank insulation construction basis, belong to solar energy generation technology field.The present invention is followed successively by resistance to deformation structure, insulation construction, reinforced concrete floor from top to bottom, and steel loop wall is placed on reinforced concrete floor, insulation construction for compacting the good haydite of grading, can follow steel loop wall reach a high temperature under compatibility of deformation；Resistance to deformation structure is to be close to the acclive dry sand of tool of storage tank bottom plate lower surface, and sliding friction caused by displacement when storage tank bottom plate into thermal deformation can occur is converted into rolling friction；Air cooled tube is embedded with reinforced concrete floor, the temperature of concrete floor can be reduced, avoid high temperature deformation from ftractureing.Present invention employs heat insulation measure, resistance to deformation structure and radiator structure, realizing can be to the medium heat-preserving in storage tank, and can is resistant to the function of high temperature deformation and pressure carrying, avoid fused salt storage tank foundation settlement excessive and tank inclination or unstability caused by differential settlement, or even trigger the secondary harms such as storage tank rupture.
Description
Technical field
The present invention relates to a kind of fused salt storage tank insulation construction basis, belong to solar energy generation technology field.
Background technology
In field of solar thermal power generation, the radiation energy of solar energy is generally converted into the heat energy of high-temperature molten salt by heating fused salt
It is easy to store.Need the high-temperature molten salt amount scale of construction of energy storage huge at optical energy power station, up to ten thousand tons, salt storage tank volume and
Weight is huge, and the bearing capacity and heat resistant requirements to ground are very high.The fused salt storage tank of current domestic field of solar thermal power generation
Base basis is existing without related design specification《Steel storage tank basic design specification of the foundation》GB50473 is to medium from great
In 10KN/m3Storage Tank Foundation Design does not make regulation yet.Require to be higher than 90 to storage medium maximum temperature in storage tank in specification
DEG C, the tank foundation surface contacted with tank bottom, provision for thermal insulation should be taken.Existing《Code for design of concrete structures》
The environment temperature of normal concrete is provided in GB50010-2010 must not be higher than 60 DEG C.Medium weighs about certainly in existing fused salt storage tank
18.76KN/m3, salt storage tank medium designs temperature is 590 DEG C, and technology major requirement reduces heat as far as possible to tank foundation
Loss, so to take heat insulation measure to fused salt storage tank basis.
Simultaneously as tank temperature is too high, heat is still suffered from after isothermal holding and is conducted to reinforced concrete floor,
And reinforced concrete floor temperature should not be too high, first thermal cracking and intensity decreases can be easily produced because of heated, it is second warm
Moisture evaporation in foundation soil can be caused by spending height, and foundation bearing capacity reduces, thus to produce sedimentation excessive and not for fused salt storage tank ground
Uniform settlement, cause fused salt storage tank inclination or unstability, or even produce storage tank rupture, cause serious secondary disaster.
The content of the invention
It is an object of the invention to overcome fused salt storage tank basic heat-preservation structure effect of heat insulation is undesirable, bottom radiating is bad,
The defects of intolerant to deformation, it is proposed that fused salt storage tank insulation construction basis, it is by using heat insulation measure, resistance to deformation structure
And radiator structure, realizing can be to the medium heat-preserving in storage tank, and can tolerance high temperature deformation and pressure carrying, not by more waste heats
Amount is conducted to the function of ground.
The present invention is realized using following technical scheme：
Fused salt storage tank insulation construction basis of the present invention, is followed successively by resistance to deformation structure, insulation construction, steel from top to bottom
Reinforced concrete bottom plate, wherein steel loop wall are placed on reinforced concrete floor, and the insulation construction is to be filled in the pottery of steel loop within the walls
Grain.
Haydite is the one or more in aluminium vanadine haydite, haydites of book structure, coal gangue haydite, lytag.
Resistance to deformation structure is to be close to the dry sand of storage tank bottom plate lower surface.Dry sand insulation construction basis top layer, directly
Connect and contacted with storage tank bottom plate lower surface, make storage tank bottom plate heat up deformation when, with dry sand produce relative displacement when be rolling friction
Rather than sliding friction.
Dry sand thickness is gradually reduced from tank bottom center to surrounding.Dry sand integrally presents coniform.
The gradient of dry sand thickness is 1.5-3%, and outermost layer thickness is 100mm.
Air cooled tube is provided with reinforced concrete floor, middle part is embedded in reinforced concrete floor, and both ends are elevated above the soil.
Air cooled tube both ends communicate with fan air channel, and generation air-flow takes away the waste heat in reinforced concrete floor, avoid its temperature
Spend height.
Air cooled tube close parallel preferably in reinforced concrete floor is arranged.Air cooled tube can be pipeline,
It can be the tube chamber reserved in reinforced concrete floor manufacturing process.
Air cooled tube is according to air inlet/outlet direction interlaced arrangement.
Steel loop wall is provided with annular steel base with reinforced concrete floor contact surface.
Reinforced concrete floor has bed course.
The beneficial effects of the invention are as follows：
(1) present invention, when storage tank medium temperature raises, is allowed by setting the dry sand with the gradient under storage tank bottom plate
Storage tank bottom plate is radially expanded with the natural grade of dry sand, and change sliding friction avoids storage tank bottom plate supported underneath thing into rolling friction
Expanded by heating deforms.
(2) the armored concrete ringwall in traditional infrastructure is changed to steel loop wall by the present invention, can be with haydite temperature liter in ringwall
Height, its deformation can be followed by producing temperature stress and deformation, the haydite of steel loop within the walls, the compatibility of deformation under reaching a high temperature.
(3) for the present invention by the use of haydite as heat preserving and insulating material, thermal conductivity factor and bulk density are small, and grading is good, and have
There is certain compression strength, heat insulation measure be used as after compaction in layers, good heat insulation effect can be played, avoid temperature drop,
Endurance deficiency will not be caused simultaneously and collapsed.
(4) present invention is provided with air cooled tube in the middle part of reinforced concrete floor, according to code requirement and can mix
Coagulate native heating temperature, adjust air velocity, reduce the temperature of reinforced concrete floor, ensure that reinforced concrete floor intensity and
Foundation bearing capacity, avoid fused salt storage tank foundation settlement excessive and tank inclination or unstability caused by differential settlement, or even trigger
The secondary harms such as storage tank rupture.
Brief description of the drawings
Fig. 1 is fused salt storage tank insulation construction basis longitudinal profile schematic diagram.
In figure：1st, storage tank；2nd, storage tank bottom plate；3rd, granite stones ring beam；4th, dry sand；5th, haydite；6th, steel loop wall；7th, steel
Reinforced concrete bottom plate；8th, air cooled tube；9th, bed course；10th, ground；11st, annular steel base.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
As shown in figure 1, a kind of fused salt storage tank insulation construction basis of the present invention, is followed successively by the knot of resistance to deformation from top to bottom
Structure, insulation construction, reinforced concrete floor 7, wherein steel loop wall 6 are placed on reinforced concrete floor 7, and steel loop wall 6 mixes with reinforcing bar
Coagulate the native contact surface of bottom plate 7 and be provided with annular steel base 11, reinforced concrete floor 7 has bed course 9.The insulation construction is filling
Haydite 5 in steel loop wall 6.Resistance to deformation structure is to be close to the dry sand 4 of the lower surface of storage tank bottom plate 2, and the thickness of dry sand 4 is by storage tank
1 bottom centre is gradually reduced to surrounding, and the gradient of the thickness of dry sand 4 is 1.5%, and outermost layer thickness is 100mm.
Air cooled tube 8 is provided with reinforced concrete floor 7, the middle part of air cooled tube 8 is embedded in reinforced concrete floor 7
In, both ends are elevated above the soil, and the close parallel in reinforced concrete floor 7 of air cooled tube 8 is arranged, and is interlocked according to air inlet/outlet direction
Arrangement.
One project, 350 DEG C of 1 medium temperature of salt storage tank, a diameter of 16000mm.It is provided with below the outer rim of storage tank bottom plate 2
Granite stones ring beam 3, middle part are dry sand 4.Dry sand 4 is coniform, is gradually reduced from the center of storage tank 1 to surrounding thickness,
The gradient is 1.5%, thinnest part 100mm.Dry sand 4 is insulation haydite 5 with the lower section of granite stones ring beam 3, selection
Heat preserving and insulating material haydite 5 is bauxite haydite, and particle diameter is 5~20mm, and grading is good, bulk density≤550Kg/m3, through examination
Test fixed thermal conductivity factor≤0.30W/ (mK), thickness 1300mm.Thickness is that 25mm steel loop wall 6 is positioned over heat-preserving ceramsite
The thickness of 5 lower sections is on the annular steel base 11 on 600mm reinforced concrete floor 7, by 5 tight beam of heat-preserving ceramsite wherein.
Reinforced concrete floor 7 is embedded with 18 air cooled tubes 8, the diameter 114mm of air cooled tube 8 of selection, according to air inlet/outlet side
Arrange that the both ends of air cooled tube 8 are elevated above the soil, are connected with fan air channel to interleaved parallel.Reinforced concrete floor 7 has pad
Layer 9, bed course 9 times are subsoil 10 or pile foundation.
The situation of the present invention in use is as described below：When in storage tank 1 medium temperature raise when, the tank skin of storage tank 1 and
Storage tank bottom plate 2 can outwards expand, and for storage tank bottom plate 2 because bottom is covered with dry sand 4, storage tank bottom plate 2 can be along the nature of dry sand 4
The gradient freely radially expands, because what is formed between storage tank bottom plate 2 and dry sand is rolling friction, will not cause deformation and stress
Concentrate.Temperature as heat preserving and insulating material haydite 5 can raise as medium temperature raises, and steel loop wall 6 can produce temperature should
Power and deformation, the haydite 5 in steel loop wall 6 can follow its deformation under the effect of the pressure of storage tank 1 and medium, under reaching a high temperature
Compatibility of deformation.In order to prevent reinforced concrete floor 7 of the heat transfer to bottom, avoid its because temperature is too high and intensity decreases,
According to temperature field analysis result, the power of the axial flow blower of air cooled tube 8 in reinforced concrete floor 7 is calculated, adjusts work(
Rate size takes away heat, plays good thermolysis.
When the gradient of dry sand 4 is 2% or 3%, similar beneficial effect can be played.
Heat-preserving ceramsite 5 has multiple choices, can be selected in aluminium vanadine haydite, haydites of book structure, coal gangue haydite, lytag
One or more of mixing.The thickness and selection type of haydite 5 should be according to the medium temperature of fused salt storage tank 1, medium level and storages
The diameter of tank 1, establishes after temperature field is analyzed and makes suitable selection.
The thickness of steel loop wall 6, according to《Steel storage tank basic design specification of the foundation》GB50473, the medium of storage tank 1, height, temperature
The related request such as degree and antidetonation is calculated.
Certainly, the above is only presently preferred embodiments of the present invention, it is impossible to is considered as limiting the implementation to the present invention
Example scope.The present invention is also not limited to the example above, essential scope of the those skilled in the art in the present invention
Interior made equivalent change and improvement etc., it all should belong in the patent covering scope of the present invention.
Claims (10)
- A kind of 1. fused salt storage tank insulation construction basis, it is characterised in that be followed successively by from top to bottom resistance to deformation structure, insulation construction, Reinforced concrete floor (7), wherein steel loop wall (6) are placed on reinforced concrete floor (7), and the insulation construction is to be filled in steel Haydite (5) in ringwall (6).
- 2. fused salt storage tank insulation construction basis according to claim 1, it is characterised in that：The haydite (5) is aluminium vanadine One or more in haydite, haydites of book structure, coal gangue haydite, lytag.
- 3. fused salt storage tank insulation construction basis according to claim 1, it is characterised in that：The resistance to deformation structure is to be close to The dry sand (4) of storage tank bottom plate (2) lower surface.
- 4. fused salt storage tank insulation construction basis according to claim 3, it is characterised in that：Dry sand (4) thickness by Storage tank (1) bottom centre is gradually reduced to surrounding.
- 5. fused salt storage tank insulation construction basis according to claim 4, it is characterised in that：Dry sand (4) thickness The gradient is 1.5-3%, and outermost layer thickness is 100mm.
- 6. fused salt storage tank insulation construction basis according to claim 1, it is characterised in that：The reinforced concrete floor (7) air cooled tube (8) is provided with, is embedded in the middle part of the air cooled tube (8) in reinforced concrete floor (7), both ends are stretched out Ground.
- 7. fused salt storage tank insulation construction basis according to claim 6, it is characterised in that：The air cooled tube (8) exists Close parallel is arranged in reinforced concrete floor (7).
- 8. fused salt storage tank insulation construction basis according to claim 6, it is characterised in that：The air cooled tube (8) is pressed Shine into air-out direction interlaced arrangement.
- 9. fused salt storage tank insulation construction basis according to claim 1, it is characterised in that：The steel loop wall (6) and reinforcing bar Concrete floor (7) contact surface is provided with annular steel base (11).
- 10. fused salt storage tank insulation construction basis according to claim 1, it is characterised in that：The reinforced concrete floor (7) bed course (9) is had.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710914364.4A CN107476329A (en) | 2017-09-30 | 2017-09-30 | Fused salt storage tank insulation construction basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710914364.4A CN107476329A (en) | 2017-09-30 | 2017-09-30 | Fused salt storage tank insulation construction basis |
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| Publication Number | Publication Date |
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| CN107476329A true CN107476329A (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710914364.4A Withdrawn CN107476329A (en) | 2017-09-30 | 2017-09-30 | Fused salt storage tank insulation construction basis |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624294A (en) * | 2018-06-08 | 2018-10-09 | 华北电力大学 | A kind of high temperature phase-change heat-storage material and preparation method based on gangue |
| CN109095020A (en) * | 2018-08-15 | 2018-12-28 | 中国成达工程有限公司 | A kind of high temperature tank foundation cooling system |
| CN114001275A (en) * | 2020-07-27 | 2022-02-01 | 中国石油天然气集团有限公司 | Storage tank foundation and storage tank system |
| WO2024031142A1 (en) * | 2022-08-09 | 2024-02-15 | Vast Solar Pty Ltd | Thermal energy storage system |
-
2017
- 2017-09-30 CN CN201710914364.4A patent/CN107476329A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624294A (en) * | 2018-06-08 | 2018-10-09 | 华北电力大学 | A kind of high temperature phase-change heat-storage material and preparation method based on gangue |
| CN109095020A (en) * | 2018-08-15 | 2018-12-28 | 中国成达工程有限公司 | A kind of high temperature tank foundation cooling system |
| CN114001275A (en) * | 2020-07-27 | 2022-02-01 | 中国石油天然气集团有限公司 | Storage tank foundation and storage tank system |
| CN114001275B (en) * | 2020-07-27 | 2023-11-28 | 中国石油天然气集团有限公司 | Storage tank foundation and storage tank system |
| WO2024031142A1 (en) * | 2022-08-09 | 2024-02-15 | Vast Solar Pty Ltd | Thermal energy storage system |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171215 |
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| WW01 | Invention patent application withdrawn after publication |