CN208971151U - A kind of energy storage device for peak regulation of power plant - Google Patents
A kind of energy storage device for peak regulation of power plant Download PDFInfo
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- CN208971151U CN208971151U CN201821922763.1U CN201821922763U CN208971151U CN 208971151 U CN208971151 U CN 208971151U CN 201821922763 U CN201821922763 U CN 201821922763U CN 208971151 U CN208971151 U CN 208971151U
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Abstract
The utility model belongs to energy storage and utilizes technical field, disclose a kind of energy storage device for peak regulation of power plant, this is used for the sequentially connected first heat accumulation module of energy storage device of peak regulation of power plant, second heat accumulation module and third heat accumulation module, first heat accumulation module, the temperature of second heat accumulation module and third heat accumulation module successively increases, the entrance of first heat accumulation module is connected with condensed water, the outlet of third heat accumulation module is connected with steam turbine, condensed water passes sequentially through the first heat accumulation module, superheated steam is formed after second heat accumulation module and third heat accumulation module, into generating electricity in steam turbine.The utility model forms superheated steam after condensed water is passed sequentially through the first heat accumulation module, the second heat accumulation module and third heat accumulation module, into generating electricity in steam turbine, realize the classification heat release to condensed water, so that the energy utilization rate of energy storage device greatly improves, to solve the problems, such as that the energy utilization rate of existing molten salt energy-storage is low.
Description
Technical field
The utility model relates to energy storage to utilize technical field more particularly to a kind of energy storage device for peak regulation of power plant.
Background technique
Conventional paddy electricity molten salt energy-storage, with the sensible heat section of fused salt material, energy leads to high temperature, low temperature tank volume with small
Greatly；And origin of heat is paddy electricity, is during electricity is then converted to heat, to consume a large amount of energy, economy from thermal transition
Difference.It would therefore be highly desirable to need to provide the novel energy storage device for peak regulation of power plant of one kind to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of energy storage devices for peak regulation of power plant, to solve existing molten salt energy-storage
The low problem of energy utilization rate.
For this purpose, the utility model uses following technical scheme:
A kind of energy storage device for peak regulation of power plant, including sequentially connected first heat accumulation module, the second heat accumulation module and
The temperature of third heat accumulation module, the first heat accumulation module, the second heat accumulation module and third heat accumulation module successively increases, the first heat accumulation mould
The entrance of block is connected with condensed water, and the outlet of third heat accumulation module is connected with steam turbine, and condensed water passes sequentially through the first heat accumulation mould
Superheated steam is formed after block, the second heat accumulation module and third heat accumulation module, into generating electricity in steam turbine.
Add preferably, the inside of the first heat accumulation module, the second heat accumulation module and third heat accumulation module is connected separately with electricity
Hot device.
Preferably, electric heater is electrically connected with power plant's paddy electricity or abandoning.
Preferably, the quantity for being set to the electric heater in the second heat accumulation module is greater than the electricity being set in third heat accumulation module
The quantity of heater, the quantity of the electric heater in third heat accumulation module are greater than the electric heater in the first heat accumulation module
Quantity.
Preferably, one end of third heat accumulation module is connected with superheated steam, one end of the first heat accumulation module is connected with boiler,
Formation condensed water enters boiler after superheated steam passes sequentially through third heat accumulation module, the second heat accumulation module and the first heat accumulation module.
Preferably, the inside of the first heat accumulation module, the second heat accumulation module and third heat accumulation module is connected separately with and is used for
The pipeline that condensed water and superheated steam pass through.
Preferably, the quantity for being set to the pipeline in the second heat accumulation module is greater than the pipeline being set in third heat accumulation module
Quantity, the quantity of the pipeline in third heat accumulation module are greater than the quantity of the pipeline in the first heat accumulation module.
Preferably, the second heat accumulation module is made of phase-change material, the first heat accumulation module and third heat accumulation module are by mixed
Solidifying soil is made.
Preferably, phase-change material is sodium nitrate.
The utility model has the beneficial effects that
Condensed water is passed sequentially through shape after the first heat accumulation module, the second heat accumulation module and third heat accumulation module by the utility model
At superheated steam, into generating electricity in steam turbine, the classification heat release to condensed water is realized, so that the energy benefit of energy storage device
It is greatly improved with rate, to solve the problems, such as that the energy utilization rate of existing molten salt energy-storage is low.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the energy storage device for peak regulation of power plant that the utility model embodiment one provides；
Fig. 2 is the structural schematic diagram for the energy storage device for peak regulation of power plant that the utility model embodiment one provides.
In figure:
11, the first heat accumulation module；12, the second heat accumulation module；13, third heat accumulation module；14, steam turbine；15, electric heating
Device；16, boiler；17, pipeline.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of knot of its energy storage device for peak regulation of power plant provided for the utility model embodiment one
Structure schematic diagram.The energy storage device includes sequentially connected first heat accumulation module 11, the second heat accumulation module 12 and third heat accumulation module
13, the entrance of the first heat accumulation module 11 is connected with condensed water, and condensed water can be to be supplied from external source, is also possible to straight
The condensed water generated after the free plant condenser condensation of selecting.The outlet of third heat accumulation module 13 is connected with steam turbine 14, condensation
Water forms superheated steam after passing sequentially through the first heat accumulation module 11, the second heat accumulation module 12 and third heat accumulation module 13, into vapour
It generates electricity in turbine 14.Specifically, condensed water becomes unsaturated steam after flowing through the first heat accumulation module 11, then flows through second
All become saturated vapor after heat accumulation module 12, forms superheated steam after finally flowing through third heat accumulation module 13.The utility model
Superheated steam is formed after condensed water is passed sequentially through the first heat accumulation module, the second heat accumulation module and third heat accumulation module, into vapour
It generates electricity in turbine, realizes the classification heat release to condensed water, so that the energy utilization rate of energy storage device greatly improves, thus
Solve the problems, such as that the energy utilization rate of existing molten salt energy-storage is low.
Specifically, the second heat accumulation module 12 is made of phase-change material, and the first heat accumulation module 11 and third heat accumulation module 13 are equal
It is made of concrete, it is to be understood that specifically, the first heat accumulation module 11 and third heat accumulation module 13 can also be by other non-
Phase-change material is made.The phase transition temperature of phase-change material is higher than the saturated-steam temperature under preset pressure, and is no more than 20 DEG C, so
Phase-change material could utilize the heat released when its phase transformation to go to exchange heat out the temperature of the saturated vapor under preset pressure.It is preferred that
Ground, phase-change material are fused salt, are further nitrate.Nitrate is unitary fused salt, and phase low compared to the cost of Molten Binary Salts
It is larger to become enthalpy, the service efficiency of fused salt energy energy storage can be improved.Nitrate is preferably sodium nitrate, using sodium nitrate as phase transformation material
The reason of material is: the phase transition temperature of sodium nitrate is higher than 300 DEG C, thus can exchange heat to obtain 300 DEG C or so of saturated vapor.
Specifically, the inside of the first heat accumulation module 11, the second heat accumulation module 12 and third heat accumulation module 13 is connected separately with
The temperature of electric heater 15, the first heat accumulation module 11, the second heat accumulation module 12 and third heat accumulation module 13 successively increases.Specifically
Ground, the quantity of the electric heater 15 in the second heat accumulation module 12 are greater than the electric heater 15 being set in third heat accumulation module 13
Quantity, the quantity of the electric heater 15 in third heat accumulation module 13 is greater than the electric heater 15 in the first heat accumulation module 11
Quantity, since phase-change heat-exchange needs to swap out a large amount of heat, and more heats can be stored using phase-change material, so may be used
To guarantee that the heat stored by the second heat accumulation module 12 is more, and then unsaturated steam may make all to become saturated vapor.It can
With understanding, the quantity of electric heater 15 number with heating after temperature be not directly dependent upon, the quantity of electric heater 15
It is more, it is more to represent stored heat.
Specifically, each electric heater 15 is electrically connected with power plant's paddy electricity or abandoning.In the paddy electricity period, power plant's paddy electricity or abandoning electricity
It transmits electrical power to electric heater 15 and the first heat accumulation module 11, the second heat accumulation module 12 and third heat accumulation module 13 is added
Hot energy storage；In peak potential period, condensed water passes sequentially through the first heat accumulation module 11, the second heat accumulation module 12 and third heat accumulation module 13
Superheated steam is ultimately formed, so that superheated steam pushing turbine 14 is generated electricity, to play power plant's peak load shifting (i.e. peak regulation)
Effect.
As shown in Fig. 2, a kind of knot of its energy storage device for peak regulation of power plant provided for the utility model embodiment two
Structure schematic diagram.What is different from the first embodiment is that the not set electric heater 15 of energy storage device that embodiment two provides is to the first heat accumulation
Module 11, the second heat accumulation module 12 and third heat accumulation module 13 carry out heating energy storage, but use superheated steam to the first heat accumulation
Module 11, the second heat accumulation module 12 and third heat accumulation module 13 carry out heating energy storage.
Specifically, one end of third heat accumulation module 13 is connected with superheated steam, and one end of the first heat accumulation module 11 is connected with pot
Furnace 16, superheated steam form condensation after passing sequentially through third heat accumulation module 13, the second heat accumulation module 12 and the first heat accumulation module 11
Water enters boiler 16.When by by the paddy electricity stage, the extra superheated steam that boiler 16 generates carries out energy storage, eliminates intermediate heat
It is converted into the link of electricity, capacity usage ratio is high, good economy performance.
Specifically, the inside of the first heat accumulation module 11, the second heat accumulation module 12 and third heat accumulation module 13 is connected separately with
The pipeline 17 passed through for condensed water and superheated steam.To keep the heat of the second heat accumulation module 12 storage more, it is set to the second storage
The quantity of pipeline 17 in thermal modules 12 is greater than the quantity for the pipeline 17 being set in third heat accumulation module 13, is set to third heat accumulation mould
The quantity of pipeline 17 in block 13 is greater than the quantity of the pipeline 17 in the first heat accumulation module 11.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For the ordinary skill user of fields, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (9)
1. a kind of energy storage device for peak regulation of power plant, which is characterized in that including sequentially connected first heat accumulation module (11),
Two heat accumulation modules (12) and third heat accumulation module (13), the first heat accumulation module (11), the second heat accumulation module (12) and
The temperature of the third heat accumulation module (13) successively increases, and the entrance of the first heat accumulation module (11) is connected with condensed water, institute
The outlet for stating third heat accumulation module (13) is connected with steam turbine (14), and the condensed water passes sequentially through the first heat accumulation module
(11), the second heat accumulation module (12) and the third heat accumulation module (13) form superheated steam afterwards, into the steam turbine
(14) it generates electricity in.
2. the energy storage device according to claim 1 for peak regulation of power plant, which is characterized in that the first heat accumulation module
(11), the inside of the second heat accumulation module (12) and the third heat accumulation module (13) is connected separately with electric heater (15).
3. the energy storage device according to claim 2 for peak regulation of power plant, which is characterized in that the electric heater (15) with
Power plant's paddy electricity abandons electrical connection.
4. the energy storage device according to claim 2 for peak regulation of power plant, which is characterized in that be set to the second heat accumulation mould
The quantity of the electric heater (15) in block (12) is greater than the electric heater being set in the third heat accumulation module (13)
(15) quantity, the quantity for being set to the electric heater (15) in the third heat accumulation module (13) are greater than first heat accumulation
The quantity of the electric heater (15) in module (11).
5. the energy storage device according to claim 1 for peak regulation of power plant, which is characterized in that the third heat accumulation module
(13) one end is connected with superheated steam, and one end of the first heat accumulation module (11) is connected with boiler (16), the superheated steam
The third heat accumulation module (13), the second heat accumulation module (12) and the first heat accumulation module (11) is passed sequentially through to be formed afterwards
Condensed water enters boiler (16).
6. the energy storage device according to claim 1 for peak regulation of power plant, which is characterized in that the first heat accumulation module
(11), the inside of the second heat accumulation module (12) and the third heat accumulation module (13) is connected separately with for condensed water and mistake
The pipeline (17) that hot steam passes through.
7. the energy storage device according to claim 6 for peak regulation of power plant, which is characterized in that be set to the second heat accumulation mould
The quantity of the pipeline (17) in block (12) is greater than the number for the pipeline (17) being set in the third heat accumulation module (13)
Amount, the quantity for being set to the pipeline (17) in the third heat accumulation module (13) are greater than in the first heat accumulation module (11)
The quantity of the pipeline (17).
8. the energy storage device of peak regulation of power plant is used for described in any one of -7 according to claim 1, which is characterized in that described second
Heat accumulation module (12) is made of phase-change material, and the first heat accumulation module (11) and the third heat accumulation module (13) are by coagulation
Soil is made.
9. the energy storage device according to claim 8 for peak regulation of power plant, which is characterized in that the phase-change material is nitric acid
Sodium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922763.1U CN208971151U (en) | 2018-11-21 | 2018-11-21 | A kind of energy storage device for peak regulation of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922763.1U CN208971151U (en) | 2018-11-21 | 2018-11-21 | A kind of energy storage device for peak regulation of power plant |
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| CN208971151U true CN208971151U (en) | 2019-06-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11709024B2 (en) | 2019-06-12 | 2023-07-25 | Energynest As | Thermal energy battery |
| CN116718059A (en) * | 2023-08-07 | 2023-09-08 | 山西中能天胜科技有限公司 | Power station peak shaving system and method based on high-capacity high-temperature molten salt energy storage |
-
2018
- 2018-11-21 CN CN201821922763.1U patent/CN208971151U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11709024B2 (en) | 2019-06-12 | 2023-07-25 | Energynest As | Thermal energy battery |
| CN116718059A (en) * | 2023-08-07 | 2023-09-08 | 山西中能天胜科技有限公司 | Power station peak shaving system and method based on high-capacity high-temperature molten salt energy storage |
| CN116718059B (en) * | 2023-08-07 | 2023-10-27 | 山西中能天胜科技有限公司 | Power station peak shaving system and method based on high-capacity high-temperature molten salt energy storage |
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