CN207226152U - A kind of double-jacket salt storage tank - Google Patents
A kind of double-jacket salt storage tank Download PDFInfo
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- CN207226152U CN207226152U CN201721106929.8U CN201721106929U CN207226152U CN 207226152 U CN207226152 U CN 207226152U CN 201721106929 U CN201721106929 U CN 201721106929U CN 207226152 U CN207226152 U CN 207226152U
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- tank
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- inner canister
- storage tank
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Abstract
The utility model discloses a kind of double-jacket salt storage tank, including tank body, tank deck and tank bottom, the tank body is made of inner and outer tank, jacket space is formed between the inner canister and outer tank, tank body insulating layer is provided with the inside of outer tank in the jacket space, air layer is left between the tank body insulating layer and inner canister.The tank body of the utility model is by using double-decker, and form compound heat preservation structure using insulating layer and air layer, avoid influence of the high temperature to outer tank, make inner canister can free thermal expansion and from insulating layer limit, tank deck, tank skin, the heat-insulating heat-preserving material of tank bottom are all installed in outer steel shell, it effectively prevent that existing thermal insulation material is external and the influence caused by performance of heat protective material, extend the service life of thermal insulation material.
Description
Technical field
The utility model belongs to solar energy optical-thermal engineering device technique field, more particularly to a kind of double-jacket high-temperature molten salt storage
Tank.
Background technology
Solar light-heat power-generation is the important channel in clean energy resource source, currently with photo-thermal of the fused salt as heat accumulation working medium
Power generation is the universally recognized scheme of world wide, it not only serves as middle heat energy carrier, while can be stored in fused salt storage tank,
To ensure in the case where night does not have sunlight, electric energy can be continuously and stably exported, is a kind of power grid friendly power supply, solved
The electric power application problem that new energy of having determined generally faces.Salt storage tank plays key effect during energy storing and electricity generating.
Whether the heat insulation effect of fused salt storage tank is excellent, and whether equipment securely and reliably directly influences stable operation and the power station of electricity generation system
Economic benefit.
The solar energy optical-thermal tower-type electricity generation station of current two inputs commercial operation only in the world.The crescent in the U.S. is husky
Mound power station salt storage tank is leaked in October, 2016, is stopped transport some months；Likewise, positioned at Spain Seville
The global seat of honour can realize 24 it is small when the solar power station Gemasolar photo-thermal power station that generates electricity, also because of high-temperature molten salt at the beginning of 2017
Accident, which occurs, for storage tank causes the power station stoppage in transit several months to be had a surplus.Since maintenance storage tank not only needs to empty storage tank, it is also necessary to treat it certainly
It so could start to repair after cooling, expend very much the time.
Current salt storage tank, generally using the structure of the conventional additional thermal insulation material of the stainless steel storage tank of cylindrical shape
Form, it is primarily present following technical problem：1st, heat preserving and insulating material is installed on the outside of tank body, and only Insulating aluminium skin or iron sheet is protected
Shield, the influence of Yi Shouyu, snow, strong wind, inevitably need periodic maintenance；2nd, heat preserving and insulating material is enclosed with outside tank body,
The deformation of tank body, the leakage of weld seam can not effectively be observed and found in time；3rd, the preheating of tank body is difficult, and the time is long and is difficult to accomplish
Each spot temperature of tank body is uniform；4th, tank deck and tank skin are due to uneven heating, both junction thermal (temperature difference) stresses are big, destructible；5th, tank
Top operating temperature is approached with high-temperature molten salt, and temperature is high, and design, manufacture are difficult；6th, tank bottom heat preserving and insulating material is directly installed on tank
On the basis of body, the influence that extra protection avoids rainwater need to be carried out；Cool air hose needs guiding through or around tank body foundation beam, tank body at the same time
Basic engineering is difficult, complicated, and construction cost is high.
Utility model content
The goal of the invention of the utility model is：For above-mentioned problem, there is provided a kind of service life is long, can be effective
Prevent fused salt from directly leaking, and Free up Memory can be provided for tank body temperature distortion, while be conducive to the Double-layer clamp of tank body preheating
Cover salt storage tank.
What the technical solution of the utility model was realized in：A kind of double-jacket salt storage tank, including tank body, tank
Top and tank bottom, it is characterised in that：The tank body is made of inner and outer tank, and it is empty that chuck is formed between the inner canister and outer tank
Between, tank body insulating layer is provided with the inside of the outer tank in the jacket space, sky is left between the tank body insulating layer and inner canister
Gas-bearing formation.
Double-jacket salt storage tank described in the utility model, its described inner canister is high temperature resistant, corrosion-resistant and bear
The stainless steel structure of fused salt static pressure, the outer tank are not contacted with fused salt, from fused salt static pressure.
Double-jacket salt storage tank described in the utility model, the tank body insulating layer that its described outer tank inner side is set are adopted
With light thermal-insulation fibre.
Double-jacket salt storage tank described in the utility model, its described interior tank top tank-less top, the inner canister with
Temperature rise freely outwards expansion.
Double-jacket salt storage tank described in the utility model, it is provided with the air layer of the jacket space
Fused salt storage tank liquid level, temperature detector and the monitor for monitoring inner canister deformation and weld leakage.
Double-jacket salt storage tank described in the utility model, it is provided with interior tank deck plate in the interior tank top,
Refractory fiber floor is equipped with the interior tank deck plate upper berth, the tank deck end is connected with tank body upper end, and the tank deck is by hanging
Bar is connected with interior tank deck plate.
Double-jacket salt storage tank described in the utility model, its described tank bottom are made of interior tank bottom and outer tank bottom,
Tank bottom insulating layer is provided between the interior tank bottom and outer tank bottom, the outer tank bottom is installed on reinforced concrete foundation.
Double-jacket salt storage tank described in the utility model, the cool air hose of its tank bottom are arranged on outer tank bottom
On, installation site and the reinforced concrete foundation of the cool air hose have certain distance.
The tank body of the utility model forms compound heat preservation knot by using double-decker, and using insulating layer and air layer
Structure, avoid influence of the high temperature to outer tank, make inner canister can free thermal expansion and limited from insulating layer, tank deck, tank skin, tank bottom
Heat-insulating heat-preserving material is all installed in outer steel shell, and it is external and performance of heat protective material is caused to effectively prevent existing thermal insulation material
Influence, extend the service life of thermal insulation material.
The utility model compared with prior art, has following technique effect：
1st, the utility model is conducive to the free wxpansion of inner canister, avoids influence of the inner canister thermal expansion to insulating layer, avoids
The stress produced by heat preserving and insulating material limitation inner canister expansion.
2nd, since tank body is double-decker in the utility model, construction workload is larger, and the construction of heat preserving and insulating material
Need to carry out cross-operation with tank body installation, the installation that is arranged to of air layer leaves enough spaces, to facilitate outer layer
The heat preserving and insulating material construction of shell wall, greatlys save construction period.
3rd, during the double-jacket salt storage tank tank body construction of the utility model, using outer tank of first constructing, then apply again
The method of work inner canister；Due to there is the protection of outer tank, the stainless steel inner canister open work problem of difficulty of construction maximum is avoided, is interior
The construction of tank creates preferable execution conditions.The accident that foreign countries' fused salt storage tank occurs in succession in the recent period, recognizes everybody, high temperature
It should pay much attention in terms of the manufacture of fused salt storage tank particularly welding.Large-scale storage tank must erecting and welding, site welding be easy at the scene
Influenced by weather conditions, there is a protection of outer layer tank body, internal layer stainless steel tank body can in any weather condition, any time into
The uninterrupted welding of row.When photo-thermal power generation project construction is in the more severe area of weather condition, using double-jacket tank, build
Cycle can be protected from weather influences substantially.
4th, all heat-insulating heat-preserving materials of the double-jacket salt storage tank of the utility model, including the furred ceiling of tank deck,
Tank skin liner and the heat preserving and insulating material of tank bottom etc. are all mounted in outer tank metal shell, and outer tank shell can be effectively protected
These materials are not affected by the weather, and need not be overhauled in theory, can really realize heat-insulating heat-preserving material and tank body etc.
In the service life, meet storage tank continuously operation not parking requirement in 30 years.
5th, the double-jacket salt storage tank of the utility model is also equipped with cool air hose under the insulating of tank bottom,
Its cool air hose is installed in the metal shell of outer tank bottom, and the basis of outer tank bottom is not required to consider the influence of high temperature, and from cool air hose cloth
The influence put, using conventional big tank base, reduces the design difficulty and construction cost of tank foundation.
6th, the instrument such as installation fused salt storage tank liquid level, temperature in the jacket space of the utility model, distributed real-time online prison
Survey the parameters such as the liquid level, temperature, strain of storage tank, it is ensured that storage tank long-term operation.Online leakage early warning system can be also installed at the same time,
Endangered by on-line monitorings such as optical fiber, temperature detections to predict the inner canisters such as the inner canister being likely to occur deformation, weld leakage in advance
Dangerous situation condition.
7th, the fused salt storage tank of the utility model is before the operation that goes into operation, it is necessary to tank body preheating is carried out, to avoid entering in tank
Fused salt contacts cold tank body and solidifies, while reduces thermal shock of the high temperature to tank body of fused salt.Tank body preheats most economical mode
It is passed through hot wind into tank to be preheated, but when tank body size is larger, hot wind can not be uniformly distributed, and it is cold and hot not tank body easily occur
Equal problem.Since tank body size is big, flow velocity of the hot wind in whole tank is extremely low, substantially can only by air heat transfer by heat conduction,
Heat transfer efficiency is very low.The utility model need to only use better simply hot wind to be distributed by being passed through hot wind in chuck annular space
Device, you can realization is evenly heated tank skin；Since jacket space is small much with respect to tank body, hot wind and tank skin can realize convection current
Heat transfer, heat transfer efficiency is higher, efficiently solves large tank and goes into operation the problem of preheating.
8th, the jacket space between the interior outer tank of the utility model, passes through special structure design and the suitable resistance to fire screen of selection
Hot material, is resistant to the direct immersion of the high-temperature molten salt of certain time., can because of the fused salt that inner canister leakage and weld cracking leak out
To be contained in jacket space, avoid high-temperature molten salt and be directly leaked in environment and cause problem of environmental pollution, while give thing
Therefore the time has been striven in processing, greatly improves the security of fused salt tank.
Brief description of the drawings
Fig. 1 and Fig. 2 is the structure diagram of the utility model.
Marked in figure：1 is tank body, and 1a is inner canister, and 1b is outer tank, and 2 be tank deck, and 3 be tank bottom, and 3a is interior tank bottom, and 3b is outer
Tank bottom, 4 be tank body insulating layer, and 5 be air layer, and 6 be interior tank deck plate, and 7 be refractory fiber floor, and 8 be sunpender, and 9 be tank bottom insulating layer,
10 be reinforced concrete foundation, and 11 be cool air hose.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the utility model.
As illustrated in fig. 1 and 2, a kind of double-jacket salt storage tank, including tank body 1, tank deck 2 and tank bottom 3, the tank
Body 1 is made of inner canister 1a and outer tank 1b, and interior tank deck plate 6 is provided with the top of the inner canister 1a, is laid with the interior tank deck plate 6
There is refractory fiber floor 7,2 end of tank deck is connected with 1 upper end of tank body, and the tank deck 2 is connected by sunpender 8 and interior tank deck plate 6
Connect.
Wherein, the inner canister 1a for high temperature resistant, stainless steel structure that is corrosion-resistant and bearing fused salt static pressure, the outer tank 1b
Do not contacted with fused salt, from fused salt static pressure, be not required to high temperature resistant and corrosion, cheap ordinary carbon steel can be used, exposed to room temperature
In environment, jacket space is formed between the inner canister 1a and outer tank 1b, is provided with the inside of the outer tank 1b in the jacket space
Tank body insulating layer 4, leaves air layer 5 between the tank body insulating layer 4 and inner canister 1a, the tank body set on the inside of the outer tank 1b is protected
Warm layer 4 uses light thermal-insulation fibre, and such as ceramic fibre, has good heat-insulating property, pass through tank body insulating layer
Set, avoid the heat loss of storage tank, meet the technological requirement of heat accumulation accumulation of energy, while tank body insulating layer has completely cut off high temperature, makes
Outer tank is not required to tolerance high temperature, does not contact fused salt, so outer tank material can select ordinary carbon steel, the inner canister 1a tops are without tank deck
2, the inner canister 1a can raise freely outwards expansion with temperature, and fused salt storage tank is provided with the air layer 5 of the jacket space
Liquid level, temperature detector and the monitor for monitoring inner canister 1a deformations and weld leakage.
Wherein, the tank bottom 3 is made of interior tank bottom 3a and outer tank bottom 3b, is set between the interior tank bottom 3a and outer tank bottom 3b
Tank bottom insulating layer 9 is equipped with, the outer tank bottom 3b is installed on reinforced concrete foundation 10, and the cool air hose 11 of the tank bottom 3 is set
On outer tank bottom 3b, installation site and the reinforced concrete foundation 10 of the cool air hose 11 have certain distance.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of double-jacket salt storage tank, including tank body（1）, tank deck（2）And tank bottom（3）, it is characterised in that：It is described
Tank body（1）By inner canister（1a）And outer tank（1b）Composition, the inner canister（1a）With outer tank（1b）Between form jacket space, described
Outer tank in jacket space（1b）Inner side is provided with tank body insulating layer（4）, the tank body insulating layer（4）With inner canister（1a）Between stay
There is air layer（5）.
2. double-jacket salt storage tank according to claim 1, it is characterised in that：The inner canister（1a）For resistance to height
Stainless steel structure that is warm, corrosion-resistant and bearing fused salt static pressure, the outer tank（1b）Do not contacted with fused salt, from fused salt static pressure
Power.
3. double-jacket salt storage tank according to claim 1, it is characterised in that：The outer tank（1b）Inner side is set
Tank body insulating layer（4）Using light thermal-insulation fibre.
4. double-jacket salt storage tank according to claim 1, it is characterised in that：The inner canister（1a）Top tank-less
Top（2）, the inner canister（1a）With temperature rise freely outwards expansion.
5. double-jacket salt storage tank according to claim 1, it is characterised in that：In the air of the jacket space
Layer（5）Inside it is provided with fused salt storage tank liquid level, temperature detector and for monitoring inner canister（1a）Deformation and the monitoring of weld leakage
Instrument.
6. double-jacket salt storage tank according to claim 1, it is characterised in that：In the inner canister（1a）Top is set
It is equipped with interior tank deck plate（6）, in the interior tank deck plate（6）On be equipped with refractory fiber floor（7）, the tank deck（2）End and tank body
（1）Upper end connects, the tank deck（2）Pass through sunpender（8）With interior tank deck plate（6）Connection.
7. double-jacket salt storage tank as claimed in any of claims 1 to 6, it is characterised in that：The tank
Bottom（3）By interior tank bottom（3a）With outer tank bottom（3b）Composition, in the interior tank bottom（3a）With outer tank bottom（3b）Between be provided with tank bottom
Insulating layer（9）, the outer tank bottom（3b）Installed in reinforced concrete foundation（10）On.
8. double-jacket salt storage tank according to claim 7, it is characterised in that：The tank bottom（3）Cool air hose
（11）It is arranged on outer tank bottom（3b）On, the cool air hose（11）Installation site and reinforced concrete foundation（10）With a spacing
From.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721106929.8U CN207226152U (en) | 2017-08-31 | 2017-08-31 | A kind of double-jacket salt storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721106929.8U CN207226152U (en) | 2017-08-31 | 2017-08-31 | A kind of double-jacket salt storage tank |
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| Publication Number | Publication Date |
|---|---|
| CN207226152U true CN207226152U (en) | 2018-04-13 |
Family
ID=61859920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721106929.8U Active CN207226152U (en) | 2017-08-31 | 2017-08-31 | A kind of double-jacket salt storage tank |
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| Country | Link |
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| CN (1) | CN207226152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107380780A (en) * | 2017-08-31 | 2017-11-24 | 中国成达工程有限公司 | A kind of double-jacket salt storage tank |
| CN113154923A (en) * | 2021-04-27 | 2021-07-23 | 中国电建集团江西装备有限公司 | Molten salt heat storage tank and manufacturing method thereof |
-
2017
- 2017-08-31 CN CN201721106929.8U patent/CN207226152U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107380780A (en) * | 2017-08-31 | 2017-11-24 | 中国成达工程有限公司 | A kind of double-jacket salt storage tank |
| WO2019042222A1 (en) * | 2017-08-31 | 2019-03-07 | 中国成达工程有限公司 | Double-walled high-temperature molten salt storage tank having interstitial space |
| CN113154923A (en) * | 2021-04-27 | 2021-07-23 | 中国电建集团江西装备有限公司 | Molten salt heat storage tank and manufacturing method thereof |
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