CN209688798U - A kind of fused salt heat storage and exchange system applied to steam power plant's heat supply steam supply - Google Patents
A kind of fused salt heat storage and exchange system applied to steam power plant's heat supply steam supply Download PDFInfo
- Publication number
- CN209688798U CN209688798U CN201920212287.2U CN201920212287U CN209688798U CN 209688798 U CN209688798 U CN 209688798U CN 201920212287 U CN201920212287 U CN 201920212287U CN 209688798 U CN209688798 U CN 209688798U
- Authority
- CN
- China
- Prior art keywords
- high temperature
- heat exchanger
- heat
- steam
- molten salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses a kind of fused salt heat storage and exchange systems applied to steam power plant's heat supply steam supply, including boiler, high temperature melting salt cellar, high temperature brine heat exchanger, hypothermic saline heat exchanger and low-temperature molten salt tank；Molten salt heater is provided in the flue of boiler, the outlet of molten salt heater is connected with the entrance of high temperature melting salt cellar, the outlet of high temperature melting salt cellar is connected with the high temperature side entrance of the high temperature side entrance of high temperature brine heat exchanger and hypothermic saline heat exchanger, the high temperature side outlet of high temperature brine heat exchanger and the high temperature side outlet of hypothermic saline heat exchanger are connected with the entrance of low-temperature molten salt tank, the outlet of low-temperature molten salt tank is connected with the entrance of molten salt heater, the low temperature side of high temperature brine heat exchanger is connected with the steam line of external steam turbine, the low temperature side of hypothermic saline heat exchanger is connected with the heat supply pipeline of external heat user, the system can effectively promote the economy of steam power plant, cost is relatively low, and heat source temperature is higher.
Description
Technical field
The utility model belongs to steam power plant's flexibility transformation field, is related to a kind of fused salt applied to steam power plant's heat supply steam supply
Heat storage and exchange system.
Background technique
Within five year of past, 1.5 hundred million kilowatts of coal electricity production capacity is suspended and postpones in the whole nation, eliminates the backward production facilities 0.2 hundred million thousand
Watt or more, implement the minimum discharge of coal electricity be transformed 4.2 hundred million kilowatts, 3.4 hundred million kilowatts of reducing energy consumption, flexibility be transformed 2.2 hundred million kilowatts.
More new energy can be received by carrying out thermoelectricity flexibility transformation.Future New Energy Source is expected to the master as China's energy development
Stream accelerates energy technology innovation, excavates coal unit peak regulation potentiality, improves peak-load regulating comprehensively and new energy digestion capability is bound to
It is expert at, and thermoelectricity carries out effective selection that flexibility transformation is also its life cycle of extension.How " flexible " development flexibility changes
Making is the project for having to capture.Currently, more mature thermoelectricity flexibility renovation technique has the optimization of unit ontology to adjust both at home and abroad
The thermoelectricity decoupling technology that the oily combustion supporting technology of adjusting technique, plasma/micro-, cogeneration units are related to, wherein thermoelectricity decoupling technology
It again include the various ways such as steam extraction transformation, solid heat storage technology, heat pump techniques, electric boiler technology and electric boiler+heat-storage technology.Its
In, although pumping renovation technique remains steam turbine power generation ability, investment is also relatively small, but there are quantity of steam promotion is limited
Deficiency, solid heat storage technology power consumption is big, and economy is poor；And there are cost height for heat pump techniques, heat source temperature is relatively low, nothing
Method carries out thermoelectricity decoupling to high-quality heat source.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of applied to steam power plant's heat supply
The fused salt heat storage and exchange system of steam supply, the system can effectively promote the economy of steam power plant, and cost is relatively low, and heat source temperature compared with
It is high.
In order to achieve the above objectives, the fused salt heat storage and exchange system described in the utility model applied to steam power plant's heat supply steam supply
Including boiler, high temperature melting salt cellar, high temperature brine heat exchanger, hypothermic saline heat exchanger and low-temperature molten salt tank；
Molten salt heater is provided in the flue of boiler, the outlet of molten salt heater is connected with the entrance of high temperature melting salt cellar
It is logical, the high temperature side entrance phase of the outlet of high temperature melting salt cellar and the high temperature side entrance of high temperature brine heat exchanger and hypothermic saline heat exchanger
Connection, the entrance of the high temperature side outlet of high temperature brine heat exchanger and the high temperature side outlet of hypothermic saline heat exchanger and low-temperature molten salt tank
It is connected, the outlet of low-temperature molten salt tank is connected with the entrance of molten salt heater, the low temperature side of high temperature brine heat exchanger and outside
The steam line of steam turbine is connected, and the low temperature side of hypothermic saline heat exchanger is connected with the heat supply pipeline of external heat user.
The molten salt heater is serpentine configuration, and is arranged along the horizontal.
The high temperature brine heat exchanger and hypothermic saline heat exchanger are shell-and-tube heat exchanger.
Molten salt heater is arranged in the horizontal flue of boiler.
The high temperature side inlet and high temperature side exit of high temperature brine heat exchanger are provided with the first valve.
The high temperature side inlet and high temperature side exit of hypothermic saline heat exchanger are provided with the second valve.
Low-temperature molten salt pump is provided between low-temperature molten salt tank and molten salt heater.
The outlet of molten salt heater is connected through high-temperature melting salt pump with the entrance of high temperature melting salt cellar.
The utility model has the following beneficial effects:
Fused salt heat storage and exchange system described in the utility model applied to steam power plant's heat supply steam supply is when specific operation, In
Molten salt heater is installed in the flue of steam power plant's burner hearth, fused salt is heated using molten salt heater, it then will be after heating
Fused salt is stored in high temperature melting salt cellar, when needing to supplement steam for heat user heat supply or to steam turbine, then passes through high temperature melting
High temperature lava in salt cellar heats water, to realize the heat supply of heat user and the steam supplement of steam turbine, to a certain degree
On save fire coal, reduce boiler coal consumption, and structure is simple, flexible arrangement, heat source temperature is higher, in practical operation,
It can be required according to heat source temperature, molten salt heater arrangement is mounted on the temperature position to match in boiler furnace flue, is
Operating cost of uniting is low, makes full use of thermal power plant boiler flue heat, is heat user and steam turbine heat supply steam supply, to promote steam power plant
Economy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 it is boiler, 2 be molten salt heater, 3 be low-temperature molten salt tank, 4 be high temperature melting salt cellar, 5 is that high temperature salt water changes
Hot device, 6 are hypothermic saline heat exchanger.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, the fused salt heat storage and exchange system described in the utility model applied to steam power plant's heat supply steam supply includes pot
Furnace 1, high temperature melting salt cellar 4, high temperature brine heat exchanger 5, hypothermic saline heat exchanger 6 and low-temperature molten salt tank 3；It is set in the flue of boiler 1
It is equipped with molten salt heater 2, the outlet of molten salt heater 2 is connected with the entrance of high temperature melting salt cellar 4, the outlet of high temperature melting salt cellar 4
It is connected with the high temperature side entrance of the high temperature side entrance of high temperature brine heat exchanger 5 and hypothermic saline heat exchanger 6, the heat exchange of high temperature salt water
The high temperature side outlet of device 5 and the high temperature side outlet of hypothermic saline heat exchanger 6 are connected with the entrance of low-temperature molten salt tank 3, and low temperature is molten
The outlet of salt cellar 3 is connected with the entrance of molten salt heater 2, the confession of the low temperature side of high temperature brine heat exchanger 5 and external steam turbine
Steam pipe road is connected, and the low temperature side of hypothermic saline heat exchanger 6 is connected with the heat supply pipeline of external heat user.
Specifically, the molten salt heater 2 is serpentine configuration, and it is arranged along the horizontal；The high temperature brine heat exchanger 5 and low
Thermohaline water- to-water heat exchanger 6 is shell-and-tube heat exchanger；Molten salt heater 2 is arranged in the horizontal flue of boiler 1.
The high temperature side inlet and high temperature side exit of high temperature brine heat exchanger 5 are provided with the first valve；Hypothermic saline
The high temperature side inlet and high temperature side exit of heat exchanger 6 are provided with the second valve；Low-temperature molten salt tank 3 and molten salt heater 2
Between be provided with low-temperature molten salt pump；The outlet of molten salt heater 2 is connected through high-temperature melting salt pump with the entrance of high temperature melting salt cellar 4.
The specific work process of the utility model are as follows:
Fused salt in low-temperature molten salt tank 3 enters in molten salt heater 2 through low-temperature molten salt pump absorbs heat, then through high temperature
Pump for liquid salts enters in high temperature melting salt cellar 4, and when heat user needs heat supply, the high temperature lava in high temperature melting salt cellar 4 enters low
In the high temperature side of thermohaline water- to-water heat exchanger 6, to heat the water in 6 low temperature side of hypothermic saline heat exchanger, then using the water after heating as
The water supply of heat user；When power plant steam turbine requires supplementation with steam, the high temperature lava in high temperature melting salt cellar 4 enters high temperature salt water
In the high temperature side of heat exchanger 5, the water in 5 low temperature side of high temperature brine heat exchanger is heated to be to the steaming of steam turbine required temperature and pressure
Then vapour adds in steam turbine, to save coal-fired, the coal consumption of reduction boiler 1 to a certain extent.
The preferable specific embodiment of the above, only the utility model patent, but the protection of the utility model patent
Range is not limited thereto, the technical scope that anyone skilled in the art discloses in the utility model patent
Interior, any changes or substitutions that can be easily thought of, should all cover within the protection scope of the utility model patent.Therefore, this is practical
The protection scope of new patent should be subject to the protection scope in claims.
Claims (8)
1. a kind of fused salt heat storage and exchange system applied to steam power plant's heat supply steam supply, which is characterized in that including boiler (1), high temperature
Fused salt tank (4), high temperature brine heat exchanger (5), hypothermic saline heat exchanger (6) and low-temperature molten salt tank (3)；
It is provided in the flue of boiler (1) molten salt heater (2), the outlet of molten salt heater (2) and entering for high temperature melting salt cellar (4)
Mouth is connected, the outlet of high temperature melting salt cellar (4) and the high temperature side entrance of high temperature brine heat exchanger (5) and hypothermic saline heat exchanger
(6) high temperature side entrance is connected, the high temperature side outlet of high temperature brine heat exchanger (5) and the high temperature of hypothermic saline heat exchanger (6)
Side outlet is connected with the entrance of low-temperature molten salt tank (3), the outlet and the entrance phase of molten salt heater (2) of low-temperature molten salt tank (3)
Connection, the low temperature side of high temperature brine heat exchanger (5) are connected with the steam line of external steam turbine, hypothermic saline heat exchanger (6)
Low temperature side be connected with the heat supply pipeline of external heat user.
2. the fused salt heat storage and exchange system according to claim 1 applied to steam power plant's heat supply steam supply, which is characterized in that institute
Stating molten salt heater (2) is serpentine configuration, and is arranged along the horizontal.
3. the fused salt heat storage and exchange system according to claim 1 applied to steam power plant's heat supply steam supply, which is characterized in that institute
Stating high temperature brine heat exchanger (5) and hypothermic saline heat exchanger (6) is shell-and-tube heat exchanger.
4. the fused salt heat storage and exchange system according to claim 1 applied to steam power plant's heat supply steam supply, which is characterized in that molten
Salt heater (2) is arranged in the horizontal flue of boiler (1).
5. the fused salt heat storage and exchange system according to claim 1 applied to steam power plant's heat supply steam supply, which is characterized in that high
The high temperature side inlet and high temperature side exit of thermohaline water- to-water heat exchanger (5) are provided with the first valve.
6. the fused salt heat storage and exchange system according to claim 5 applied to steam power plant's heat supply steam supply, which is characterized in that low
The high temperature side inlet and high temperature side exit of thermohaline water- to-water heat exchanger (6) are provided with the second valve.
7. the fused salt heat storage and exchange system according to claim 1 applied to steam power plant's heat supply steam supply, which is characterized in that low
Low-temperature molten salt pump is provided between temperature molten salt tank (3) and molten salt heater (2).
8. the fused salt heat storage and exchange system according to claim 1 applied to steam power plant's heat supply steam supply, which is characterized in that molten
The outlet of salt heater (2) is connected through high-temperature melting salt pump with the entrance of high temperature melting salt cellar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920212287.2U CN209688798U (en) | 2019-02-18 | 2019-02-18 | A kind of fused salt heat storage and exchange system applied to steam power plant's heat supply steam supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920212287.2U CN209688798U (en) | 2019-02-18 | 2019-02-18 | A kind of fused salt heat storage and exchange system applied to steam power plant's heat supply steam supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209688798U true CN209688798U (en) | 2019-11-26 |
Family
ID=68602131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920212287.2U Active CN209688798U (en) | 2019-02-18 | 2019-02-18 | A kind of fused salt heat storage and exchange system applied to steam power plant's heat supply steam supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209688798U (en) |
-
2019
- 2019-02-18 CN CN201920212287.2U patent/CN209688798U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204358977U (en) | A kind of clean energy resource steam boiler adopting Molten Salt Heat Transfer heat accumulation | |
| CN203114363U (en) | Large thermal generator set high back pressure circulating water heat supplying energy-saving system | |
| CN104832290A (en) | Distributed type energy resource flue gas waste heat deep utilization system | |
| CN202494345U (en) | Industrial furnace waste heat recovery system | |
| CN104957971A (en) | Highly-efficient energy-saving gas steam box for commercial use | |
| CN201924975U (en) | Water makeup device of waste heat boiler for lithium bromide refrigerating machine with heat pump recycling | |
| CN204704011U (en) | A kind of distributed energy fume afterheat deep exploitation system | |
| CN209688798U (en) | A kind of fused salt heat storage and exchange system applied to steam power plant's heat supply steam supply | |
| CN103411459B (en) | Multi-energy high-temperature heat-storage energy saver | |
| CN215174935U (en) | High-low temperature heat storage peak shaving system of thermal power plant | |
| CN201611133U (en) | Heating system for coke-oven plant region | |
| CN204739790U (en) | Thermoelectric joint supply system of solar energy slot type spotlight | |
| CN204693804U (en) | A kind of intermediate frequency vacuum electric heating boiler plant | |
| CN209213910U (en) | A kind of light coal complementary system realizing solar energy cascade and utilizing | |
| CN204357642U (en) | Solar energy and fuel complementary power generation system | |
| CN202092315U (en) | Flue gas waste heat recovery device | |
| CN203757815U (en) | Domestic distributed energy resource circulating system | |
| CN203431900U (en) | Smoke cooling and air heating device of power station boiler | |
| CN202203928U (en) | Smoke heat exchanging device for gas injection furnace of oil field | |
| CN202328422U (en) | Combined flue waste heat recycling device for commercial gas cooker | |
| CN204839113U (en) | Commercial gas steam ager of energy -efficient environmental protection | |
| CN205878930U (en) | Boiler waste heat recovery utilizes and optimizes economizer system | |
| CN218033218U (en) | Gas-electricity coupling gas boiler flue gas utilization system | |
| CN201944919U (en) | Prefabricated radiant heating system | |
| CN211953785U (en) | Waste heat cascade utilization's hot-water heating system based on gas internal-combustion engine generating set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |