CN207865731U - A kind of solar energy thermo-power station fused salt storage tank system - Google Patents
A kind of solar energy thermo-power station fused salt storage tank system Download PDFInfo
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- CN207865731U CN207865731U CN201721901041.3U CN201721901041U CN207865731U CN 207865731 U CN207865731 U CN 207865731U CN 201721901041 U CN201721901041 U CN 201721901041U CN 207865731 U CN207865731 U CN 207865731U
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- storage tank
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- fused salt
- solar energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The utility model provides a kind of solar energy thermo-power station fused salt storage tank system, the system is by being arranged multiple salt storage tanks, under conditions of a salt storage tank breaks down, it can ensure that remaining salt storage tank works normally by way of cutting off associated conduit, improve the ability to ward off risks of fused salt storage tank system.The fused salt storage tank system includes a low-temperature molten salt storage tank and multiple salt storage tanks, and for the heating device for low-temperature molten salt storage tank and the heating of each salt storage tank；The entrance of low-temperature molten salt storage tank is fused salt entrance, and outlet is connected to by input channel with the entrance of each salt storage tank, and the outlet of each salt storage tank passes through output channel and fused salt outlet；In being arranged in parallel between each salt storage tank, the capacity of single salt storage tank is more than or equal to the average value that high-temperature molten salt total amount divided by salt storage tank quantity obtain.
Description
Technical field
The utility model belongs to solar energy heat utilization field, and in particular to a kind of solar energy thermo-power station fused salt storage tank system
System.
Background technology
Solar light-heat power-generation is a kind of important solar utilization technique.To ensure the output work of solar energy thermo-power station
Rate is stablized, and solar energy thermo-power station generally all configures the heat reservoir of large capacity, to make up the unstable disadvantage of solar energy.At present
Heat reservoir is mainly made of low-temperature molten salt storage tank and salt storage tank, is generally occurred in pairs, and such as one low temperature of setting is molten
A salt storage tank and salt storage tank, six low-temperature molten salt storage tanks and six salt storage tanks.Due to salt storage tank
Operating temperature is higher, and the risk of failure is larger, and the existing heat reservoir ability to ward off risks designed in pairs is low.So if
A kind of photo-thermal power station fused salt storage tank system that the ability to ward off risks is high is counted to be a problem to be solved.
Utility model content
For problems of the prior art, the utility model provides a kind of solar energy thermo-power station fused salt storage tank system
System, the system under conditions of salt storage tank breaks down, can be passed through by the way that multiple salt storage tanks are arranged
The mode of cut-out associated conduit ensures that remaining salt storage tank works normally, and improves the anti-risk energy of fused salt storage tank system
Power.
The utility model is to be achieved through the following technical solutions：
A kind of solar energy thermo-power station fused salt storage tank system, including a low-temperature molten salt storage tank and the storage of multiple high-temperature molten salts
Tank, and for the heating device for low-temperature molten salt storage tank and the heating of each salt storage tank；
The entrance of low-temperature molten salt storage tank is fused salt entrance, and outlet is connected by the entrance of input channel and each salt storage tank
Logical, the outlet of each salt storage tank passes through output channel and fused salt outlet；Input channel by total input channel and with it is each
The one-to-one branch's input channel of salt storage tank is formed by connecting, and output channel with each salt storage tank by corresponding
Branch's output channel and total output channel be formed by connecting；It is in be arranged in parallel between each salt storage tank, single high-temperature molten salt
The capacity of storage tank is more than or equal to the average value that high-temperature molten salt total amount divided by salt storage tank quantity obtain.
Preferably, it is both provided with input control valve on each branch's input channel, is all provided on each branch's output channel
It is equipped with output control valve door.
Preferably, it is interconnected by connecting pipe between each salt storage tank, is both provided on each connecting pipe
It is connected to control valve.
Preferably, the quantity of salt storage tank is three.
Preferably, heating device is the external circulation heater being arranged on total input channel；External circulating electricity
The entrance of heater is connected to by high temperature circulation pipeline with total output channel, and outlet is stored up by low-temperature circulating pipeline and low-temperature molten salt
The entrance of tank is connected to；It is provided on total input channel between low-temperature molten salt outlet and external circulation heater entrance
Input control valve is provided with low-temperature circulating control valve on low-temperature circulating pipeline, high temperature circulation is provided on high temperature circulation pipeline
Control valve.
Further, external circulation heater is electric resistor heater.
Further, electric resistor heater at least two.
Further, all valves are isolating valve.
Further, it is equipped with expansion joint on all pipelines.
Further, the exit of low-temperature molten salt storage tank and each salt storage tank is equipped with pump for liquid salts, molten for pumping out
Salt.
Compared with prior art, the utility model has technique effect beneficial below：
For salt storage tank since operating temperature is higher, failure risk is higher.Tthe utility model system is by setting
Multiple salt storage tanks are set, it, can be by cutting off associated conduit under conditions of a salt storage tank breaks down
Mode ensures that remaining salt storage tank works normally, and improves the ability to ward off risks of fused salt storage tank system.The utility model is logical
It crosses and multiple salt storage tanks is set, reduce the design size of single salt storage tank, increase fused salt storage tank system operation
Reliability and operation flexibility.The total tankage of salt storage tank can be designed as, nothing identical as fused salt total amount
Redundant configuration.
Further, fused salt uses the two end number mixing fused salt of sodium nitrate and potassium nitrate.Since the solidification point of fused salt is higher, one
As electrical immersion heater will be set in fused salt storage tank, when ensureing that temperature of molten salt is too low, improved by electrically heated mode
Temperature of molten salt.Electrical immersion heater is installed to need, in storage tank side-wall hole, to thereby increase the weld seam and solder joint of storage tank side wall,
Increase the disclosure risk of storage tank.Especially salt storage tank operating temperature is higher, used austenitic stainless steel material weldering
It is high to connect requirement, disclosure risk is apparently higher than low-temperature molten salt storage tank.So fused salt storage tank system described in the utility model eliminates
Electrical immersion heater inside fused salt storage tank is changed to external electric mode of heating, reduces the trepanning and welding of fused salt storage tank
Amount, improves the safety of fused salt storage tank.
Description of the drawings
Fig. 1 is the schematic diagram of solar energy thermo-power station fused salt storage tank system described in the utility model.
In figure：1 is low-temperature molten salt storage tank；2 be external circulation heater；31,32 and 33 be salt storage tank；
41,43,44 and 45 be input control valve；42 be low-temperature circulating control valve；46,47 be to be connected to control valve with 48；49、
410 and 411 be output control valve door；412 be high temperature circulation control valve；51,52,53 and 54 be pump for liquid salts；61 be total input
Pipeline；621,622 and 623 be branch's input channel；631,632 and 633 be branch's output channel；64 be total output channel；
651,652 and 653 be connecting pipe；66 be high temperature circulation pipeline；67 be low-temperature circulating pipeline.
Specific implementation mode
The utility model is described in further detail with reference to specific embodiment, described is to the utility model
Explanation rather than limit.
As shown in Figure 1, solar energy thermo-power station fused salt storage tank system described in the utility model includes low-temperature molten salt storage tank
1, external circulation heater 2 and salt storage tank 31,32 and 33.
The operating temperature of low-temperature molten salt storage tank 1 is about 300 DEG C, and material is carbon steel.The entrance of low-temperature molten salt storage tank 1 is fused salt
Entrance is the entrance of system described in the utility model；The outlet of low-temperature molten salt storage tank 1 passes through total input channel 61 and external cycle
The entrance of formula electric heater 2 is connected to, and is provided with input control valve 41 on total input channel 61, and total input channel 61 works temperature
About 560 DEG C of degree, material is austenitic stainless steel.Low-temperature molten salt in low-temperature molten salt storage tank 1 can be by being located at low-temperature molten salt storage tank 1
The pump for liquid salts 51 on top is pumped into external circulation heater 2, and pump for liquid salts 51 is melted by the low lift low temperature of two 100% capacity
Salt pump forms, and a fortune one is standby.
The outlet of external circulation heater 2 is divided into three branch's input channels by total input channel 61, respectively
Branch's input channel 631,632 and 633, branch's input channel 631,632 and 633 respectively with salt storage tank 31,32 and 33
Outlet be connected, input control valve 43,44 and 45 is respectively arranged on branch's input channel 631,632 and 633；Total input pipe
The operating temperature of road 61 and branch's input channel 631,632 and 633 is 560 DEG C, and material is austenitic stainless steel.High-temperature molten salt stores up
Tank 31,32 and 33 by be arranged tank skin bottom connecting pipe 651,652 and 653 realize be interconnected, connecting pipe 651,
652 with 653 be equipped be connected to valve 46,47 and 48.The operating temperature of salt storage tank be 560 DEG C, material be austenite not
Become rusty steel.Each salt storage tank top configures the pump for liquid salts of 100% capacity, in salt storage tank 31,32 and 33
High-temperature molten salt can tank system be pumped out by corresponding pump for liquid salts 52,53 and 54 respectively.Salt storage tank 31,32 and 33 goes out
Mouth is converged by branch's output channel 631,632 and 633 for, with fused salt outlet, fused salt outlet is originally after total output channel 64
The outlet of system described in utility model；Output control valve door 49,410 is respectively arranged on branch's output channel 631,632 and 633
With 411.
External circulation heater 2 exports the low-temperature circulating pipeline 67 for having 1 entrance of connection low-temperature molten salt storage tank, and low temperature follows
Endless tube road 67 be equipped with low-temperature circulating control valve 42,67 operating temperature of low-temperature circulating pipeline be 560 DEG C, material be austenite not
Become rusty steel.Salt storage tank 31,32 has the high temperature circulation pipeline for being connected to 2 entrance of external circulation heater with 33 outlet
66, high temperature circulation control valve 412 is provided on high temperature circulation pipeline 66,66 operating temperature of high temperature circulation pipeline is 560 DEG C, material
Matter is austenitic stainless steel.
What the capacity of single salt storage tank was obtained more than or equal to high-temperature molten salt total amount divided by salt storage tank quantity
The capacity of average value, the preferably single salt storage tank of this example is equal to the average value.
Above-mentioned all valves use isolating valve, and expansion joint is equipped on all pipelines.
The working method of fused salt storage tank system described in the utility model has following several.
When the low-temperature molten salt in low-temperature molten salt storage tank 1 needs to maintain temperature, input control valve 41 and low-temperature circulating control
Valve 42 processed is opened, and input control valve 43,44 and 45 is closed, and the low-temperature molten salt in low-temperature molten salt storage tank 1 is through input control valve
Door 41 enters external circulation heater 2 and is heated, after return to low-temperature molten salt storage tank through low-temperature circulating control valve 42 again
1, realize the anti-condensation function of low-temperature molten salt.
When the low-temperature molten salt in low-temperature molten salt storage tank 1 needs to be heated to be high-temperature molten salt, input control valve 41,43,44
It is opened with 45, low-temperature circulating control valve 42 is closed, and the low-temperature molten salt in low-temperature molten salt storage tank 1 enters through input control valve 41
External circulation heater 2 is heated, after can respectively enter salt storage tank through input control valve 43,44 and 45
31,32 and 33, realize the heating function of low-temperature molten salt.
When the high-temperature molten salt in salt storage tank 31,32 and 33 needs to maintain temperature, input control valve 43,44 and
45 open, and output control valve door 49,410 and 411 is opened, and high temperature circulation control 412 is opened, and input control valve 41 and low temperature follow
Ring control valve 42 is closed, the high-temperature molten salt in salt storage tank 31,32 and 33 through output control valve door 49,410 and 411 with
And high temperature circulation control valve 412 enters external circulation heater 2 and heats, and is returned by input control valve 43,44 and 45
Salt storage tank 31,32 and 33 is returned, realizes the heat insulation function of high-temperature molten salt.
When salt storage tank 31 breaks down, close input control valve 43, connection control valve 46 and 48 and
Salt storage tank 31 is isolated system by output control valve door 49, system other equipment can normal operation low-temperature molten salt it is anti-
The heat insulation function of solidifying function, the heating function of low-temperature molten salt and high-temperature molten salt.
When salt storage tank 32 breaks down, close input control valve 44, connection control valve 46 and 47 and
Salt storage tank 32, can be isolated system by output control valve door 410, and system other equipment can normal operation low-temperature molten salt
The heat insulation function of anti-condensation function, the heating function of low-temperature molten salt and high-temperature molten salt.
When salt storage tank 33 breaks down, close input control valve 45, connection control valve 47 and 48 and
Salt storage tank 33, can be isolated system by output control valve door 411, and system other equipment can normal operation low-temperature molten salt
The heat insulation function of anti-condensation function, the heating function of low-temperature molten salt and high-temperature molten salt.
The total tankage of system high temperature fused salt storage tank described in the utility model can be designed as and high-temperature molten salt total amount
Identical, irredundant configuration can be by way of cutting off associated conduit under conditions of a salt storage tank breaks down
Ensure that remaining salt storage tank works normally, improves the ability to ward off risks of fused salt storage tank system.In addition, multiple by being arranged
Salt storage tank reduces the size of salt storage tank, increases the flexibility of storage tank reliability of operation and operation.
The utility model eliminates the electrical immersion heater inside fused salt storage tank, is changed to external electric mode of heating, reduces fused salt
The trepanning of storage tank and welding capacity, avoid disclosure risk, improve the safety of fused salt storage tank.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of.
Claims (10)
1. a kind of solar energy thermo-power station fused salt storage tank system, which is characterized in that including a low-temperature molten salt storage tank (1) and multiple
Salt storage tank, and the heating device for being heated for low-temperature molten salt storage tank (1) and each salt storage tank；
The entrance of low-temperature molten salt storage tank (1) is fused salt entrance, and outlet is connected by the entrance of input channel and each salt storage tank
Logical, the outlet of each salt storage tank passes through output channel and fused salt outlet；Input channel by total input channel (61) and
Be formed by connecting with the one-to-one branch's input channel of each salt storage tank, output channel by with each salt storage tank one by one
Corresponding branch's output channel and total output channel (64) are formed by connecting；In being arranged in parallel between each salt storage tank, individually
The capacity of salt storage tank is more than or equal to the average value that high-temperature molten salt total amount divided by salt storage tank quantity obtain.
2. solar energy thermo-power station fused salt storage tank system according to claim 1, which is characterized in that each branch input pipe
It is both provided with input control valve on road, output control valve door is both provided on each branch's output channel.
3. solar energy thermo-power station fused salt storage tank system according to claim 1, which is characterized in that each salt storage tank
Between by connecting pipe be interconnected, connection control valve is both provided on each connecting pipe.
4. solar energy thermo-power station fused salt storage tank system according to claim 1, which is characterized in that salt storage tank
Quantity is three.
5. solar energy thermo-power station fused salt storage tank system according to claim 1, which is characterized in that heating device is setting
External circulation heater (2) on total input channel (61)；The entrance of external circulation heater (2) passes through high temperature
Circulating line (66) is connected to total output channel (64), and outlet passes through low-temperature circulating pipeline (67) and low-temperature molten salt storage tank (1)
Entrance is connected to；Low-temperature molten salt storage tank (1) exports on total input channel (61) between external circulation heater (2) entrance
It is provided with input control valve (41), low-temperature circulating control valve (42), high temperature circulation pipe are provided on low-temperature circulating pipeline (67)
High temperature circulation control valve (412) is provided on road (66).
6. solar energy thermo-power station fused salt storage tank system according to claim 5, which is characterized in that external circulating electricity adds
Hot device (2) is electric resistor heater.
7. according to claim 6 or the solar energy thermo-power station fused salt storage tank system, which is characterized in that resistance-type electric heating
Device at least two.
8. according to claim 2,3,5,6 and 7 any one of them solar energy thermo-power station fused salt storage tank systems, feature exists
In all valves are isolating valve.
9. according to claim 1-7 any one of them solar energy thermo-power station fused salt storage tank systems, which is characterized in that Suo Youguan
Expansion joint is equipped on road.
10. according to claim 1-7 any one of them solar energy thermo-power station fused salt storage tank systems, which is characterized in that low temperature
The exit of fused salt storage tank (1) and each salt storage tank is equipped with pump for liquid salts, for pumping out fused salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721901041.3U CN207865731U (en) | 2017-12-29 | 2017-12-29 | A kind of solar energy thermo-power station fused salt storage tank system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721901041.3U CN207865731U (en) | 2017-12-29 | 2017-12-29 | A kind of solar energy thermo-power station fused salt storage tank system |
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| CN207865731U true CN207865731U (en) | 2018-09-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243085A (en) * | 2019-05-24 | 2019-09-17 | 浙江中控太阳能技术有限公司 | A kind of double salt storage tank systems of solar energy thermo-power station |
| WO2022267154A1 (en) * | 2021-06-23 | 2022-12-29 | 北京蓝海翌能新能源集团有限公司 | Salt melting system for molten salt thermal energy storage power station |
-
2017
- 2017-12-29 CN CN201721901041.3U patent/CN207865731U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243085A (en) * | 2019-05-24 | 2019-09-17 | 浙江中控太阳能技术有限公司 | A kind of double salt storage tank systems of solar energy thermo-power station |
| CN113218093A (en) * | 2019-05-24 | 2021-08-06 | 浙江中控太阳能技术有限公司 | Double-high-temperature molten salt storage tank system of solar thermal power station and application thereof |
| CN113218093B (en) * | 2019-05-24 | 2023-03-31 | 浙江可胜技术股份有限公司 | Double-high-temperature molten salt storage tank system of solar thermal power station and application thereof |
| WO2022267154A1 (en) * | 2021-06-23 | 2022-12-29 | 北京蓝海翌能新能源集团有限公司 | Salt melting system for molten salt thermal energy storage power station |
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