CN110793087B - Electrode boiler and comprehensive system for participating in thermoelectric decoupling of coal-fired thermal power plant by means of fused salt heat storage - Google Patents
Electrode boiler and comprehensive system for participating in thermoelectric decoupling of coal-fired thermal power plant by means of fused salt heat storage Download PDFInfo
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- CN110793087B CN110793087B CN201911097536.9A CN201911097536A CN110793087B CN 110793087 B CN110793087 B CN 110793087B CN 201911097536 A CN201911097536 A CN 201911097536A CN 110793087 B CN110793087 B CN 110793087B
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- 150000003839 salts Chemical class 0.000 title claims abstract description 116
- 238000005338 heat storage Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 21
- 230000002209 hydrophobic effect Effects 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 2
- 238000010248 power generation Methods 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/30—Electrode boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention discloses an electrode boiler and a comprehensive system for participating in thermoelectric decoupling of a coal-fired thermal power plant by fused salt heat storage, which comprises a steam turbine system and an electric boiler heat supply system, wherein the electric boiler heat supply system is connected with the steam turbine system and is positioned at the process downstream of the steam turbine system; and a molten salt heat storage system located at the process upstream of the electric boiler heat supply system; the system improves the heat supply capacity of the unit through the steam turbine system, the electric boiler heat supply system and the molten salt heat storage system when the coal-fired thermoelectric unit has low power generation load, can realize deep peak regulation of the heat supply area of the coal-fired thermoelectric plant by matching with the heat supply of the electric boiler, is favorable for improving the operation flexibility of the unit and improves the deep peak regulation capacity of the thermoelectric unit.
Description
Technical Field
The invention relates to the technical field of peak shaving of coal-fired power plants, in particular to an electrode boiler and a comprehensive system for participating in thermoelectric decoupling of a coal-fired thermal power plant by fused salt heat storage.
Background
At present, the new energy power generation technology in China is rapidly developed, the coal power is surplus in capacity, when the proportion of new energy in a power grid is gradually enlarged, the demand on a peak shaving power supply is gradually increased, and compared with power supplies such as new energy, the coal power has better peak shaving performance.
For countries where coal is the primary energy source, highly regulated coal power plants are the most realistic and feasible option.
Because the coal-electricity unit takes on the function of telling the advanced peak regulation and standby of the increased non-fossil energy power generation, the thermal power unit, especially the coal-electricity unit, can continuously operate under low load in the coming years or the advanced peak regulation becomes a normal state. However, in the heating season, the coal-fired cogeneration unit ensures the heating load, so that the power generation amount is increased, and the contradiction between the heating and the peak load regulation of the power grid is caused.
Disclosure of Invention
The invention aims to provide an electrode boiler with good peak regulation performance and a comprehensive system for the fused salt heat storage to participate in thermoelectric decoupling of a coal-fired thermal power plant.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention relates to an electrode boiler and fused salt heat storage participating coal-fired thermal power plant thermoelectric decoupling integrated system, which mainly comprises:
a steam turbine system;
an electric boiler heating system connected to the steam turbine system and located downstream of the steam turbine system process; and
the molten salt heat storage system is positioned at the process upstream of the electric boiler heat supply system;
the electric boiler heating system is provided with an electric boiler and an electrode boiler primary side heat exchanger communicated with the electric boiler through a pipeline;
the pipeline between the electric boiler of the electric boiler heating system and the primary side heat exchanger of the electrode boiler is at least provided with two parallel pipelines, and the two parallel pipelines communicate the electric boiler with the primary side heat exchanger of the electrode boiler in an one-on-one-standby mode;
the two parallel pipelines are both provided with a regulating valve and an electric boiler primary water pump;
the side, communicated with the steam turbine system, of the molten salt heat storage system is communicated through a molten salt heat exchanger group;
the molten salt heat exchanger group comprises a first molten salt heat exchanger group communicated with a high-pressure cylinder of the steam turbine and a second molten salt heat exchanger group communicated with a medium-pressure cylinder and a low-pressure cylinder of the steam turbine;
the first molten salt heat exchanger group comprises at least two first molten salt heat exchangers which are formed by a first branch circuit and connected in parallel;
the second molten salt heat exchanger group comprises at least two second molten salt heat exchangers which are connected in parallel through a second branch.
Further, the steam turbine system comprises the high pressure cylinder, the intermediate pressure cylinder and the low pressure cylinder;
the low-pressure cylinder is communicated with a heat supply network heater through a pipeline, the heat supply network heater is communicated with a drainage cooler through a pipeline, and the low-pressure cylinder is connected with an evaporation superheater through a pipeline;
the drainage cooling day is connected with an evaporator of the molten salt heat storage system through a drainage booster pump;
and a condenser is connected to the process downstream of the low-pressure cylinder.
Further, the electric boiler heating system comprises the electric boiler and the electrode boiler primary side heat exchanger;
the primary side heat exchanger of the electrode boiler is communicated with the heat supply network heater;
the output end of the heat supply network heater conveys circulating hot water to the outside;
and the external heat supply equipment is communicated with the hydrophobic cooler through a pipeline and conveys the heated circulating hot water to the hydrophobic cooler so as to realize the circulation of the hot water.
Further, the molten salt heat storage system comprises a hot molten salt tank located at the upstream of the process and a cold molten salt tank communicated with the downstream of the process through the molten salt heat exchanger group;
the molten salt heat exchanger group is stored in the cold molten salt tank after heat exchange with an internal medium through hot molten salt provided by the hot molten salt tank.
Further, the first molten salt heat exchanger group comprises two first molten salt heat exchangers, and the two first molten salt heat exchangers are connected in parallel through a first branch;
the first molten salt heat exchanger group and a high-pressure cylinder of the steam turbine form a circulation loop;
the second molten salt heat exchanger group comprises two second molten salt heat exchangers, and the two second molten salt heat exchangers are connected in parallel through a second branch;
the input end of the second molten salt heat exchanger group is communicated with the intermediate pressure cylinder, and the output end of the second molten salt heat exchanger group is communicated with the low-pressure cylinder to form a circulation loop;
and the first branch and the second branch are both provided with regulating valves.
In the technical scheme, the comprehensive system for the electrode boiler and the fused salt heat storage to participate in the thermoelectric decoupling of the coal-fired thermal power plant has the following beneficial effects:
according to the system, the heat supply capacity of the unit is improved through the steam turbine system, the electric boiler heat supply system and the molten salt heat storage system when the coal-fired thermoelectric unit is in low power generation load, deep peak regulation of the heat supply area of the coal-fired thermoelectric plant can be guaranteed by matching with the heat supply of the electric boiler, the operation flexibility of the unit is favorably improved, and the deep peak regulation capacity of the thermoelectric unit is improved;
the system can decouple the heat and electricity of the thermoelectric unit, and is beneficial to enhancing the flexible operation capability of the thermoelectric unit.
The electric boiler heat supply system and the molten salt heat storage system are both provided with branches/loops, and work in a mode of one-on one-standby or simultaneous opening during normal work, so that the overhaul and maintenance effects and the heat supply effect are improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a flow chart of an integrated system for an electrode boiler and fused salt heat storage to participate in thermoelectric decoupling in a coal-fired thermal power plant according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a flow of an electric boiler heating system of the integrated system in which the electrode boiler and the molten salt heat storage participate in thermoelectric decoupling of the coal-fired thermal power plant according to the embodiment of the present invention;
fig. 3 is an enlarged flow diagram of a molten salt heat storage system of the integrated system in which the electrode boiler and the molten salt heat storage participate in thermoelectric decoupling of the coal-fired thermal power plant according to the embodiment of the present invention.
Description of reference numerals:
1. a steam turbine system; 2. an electric boiler heating system; 3. a molten salt heat storage system; 4. adjusting a valve;
101. a high pressure cylinder; 102. an intermediate pressure cylinder; 103. a low pressure cylinder; 104. a heat supply network heater; 105. a drain cooler; 106. a condenser; 107. a hydrophobic booster pump;
201. an electric boiler; 202. a primary side heat exchanger of the electrode boiler; 203. a primary water pump of the electric boiler;
301. a hot-melt salt tank; 302. a cold molten salt tank; 303. a first molten salt heat exchanger bank; 304. a second molten salt heat exchanger group; 305. an evaporation superheater;
30301. a first molten salt heat exchanger; 30302. a first branch;
30401. a second molten salt heat exchanger; 30402. a second branch.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
See fig. 1-3;
the invention relates to an electrode boiler and fused salt heat storage participating coal-fired thermal power plant thermoelectric decoupling integrated system, which mainly comprises:
a steam turbine system 1;
an electric boiler heating system 2 connected with the steam turbine system 1 and positioned at the process downstream of the steam turbine system 1; and
the molten salt heat storage system 3 is positioned at the process upstream of the electric boiler heat supply system 2;
the electric boiler heating system 2 is provided with an electric boiler 201 and an electrode boiler primary side heat exchanger 202 communicated with the electric boiler 201 through a pipeline;
the pipeline between the electric boiler 201 and the electrode boiler primary side heat exchanger 202 of the electric boiler heating system 2 is at least provided with two parallel pipelines, and the two parallel pipelines communicate the electric boiler 201 and the electrode boiler primary side heat exchanger 202 in an open-standby mode;
the two parallel pipelines are both provided with a regulating valve 4 and an electric boiler primary water pump 203;
the fused salt heat storage system 3 is communicated with one side of the turbine system 1 through a fused salt heat exchanger group;
the molten salt heat exchanger group comprises a first molten salt heat exchanger group 303 respectively communicated with the high-pressure cylinder 101 of the steam turbine and a second molten salt heat exchanger group communicated with the intermediate pressure cylinder and the low-pressure cylinder of the steam turbine;
the first molten salt heat exchanger group 303 includes at least two first molten salt heat exchangers 30301 formed as parallel connection by a first branch 30302;
the second molten salt heat exchanger group 304 includes at least two second molten salt heat exchangers 30401 formed to be connected in parallel by a second branch 30402.
Preferably, the steam turbine system 1 in the present embodiment includes a high pressure cylinder 101, an intermediate pressure cylinder 102, and a low pressure cylinder 103;
the low-pressure cylinder 103 is communicated with a heat supply network heater 104 through a pipeline, the heat supply network heater 104 is communicated with a drainage cooler 105 through a pipeline, and the low-pressure cylinder 103 is connected with an evaporation superheater 305 through a pipeline;
the hydrophobic cooler 105 is connected with an evaporator of the molten salt heat storage system 3 through a hydrophobic booster pump 107;
a condenser 106 is connected to the process downstream of the low pressure cylinder 103.
Preferably, the electric boiler heating system 2 in the present embodiment includes an electric boiler 201 and an electrode boiler primary side heat exchanger 202;
the electrode boiler primary side heat exchanger 202 is communicated with the heat supply network heater 104;
the output end of the heating network heater 104 delivers circulating hot water to the outside;
the external heat supply apparatus is communicated with the hydrophobic cooler 105 through a pipe and supplies heated circulating hot water to the hydrophobic cooler 105 to realize circulation of the hot water.
Preferably, the molten salt heat storage system 3 in the embodiment comprises a hot molten salt tank 301 located at the upstream of the process, and a cold molten salt tank 302 communicated with the downstream of the process through a molten salt heat exchanger group;
the molten salt heat exchanger group is stored in the cold molten salt tank 302 after passing through the hot molten salt provided by the hot molten salt tank 301 and exchanging heat with the internal medium.
Preferably, in this embodiment, the first molten salt heat exchanger group 303 includes two first molten salt heat exchangers 30301, and the two first molten salt heat exchangers 30301 are connected in parallel with each other through a first branch 30302;
the first molten salt heat exchanger group 303 and the high-pressure cylinder 101 of the steam turbine form a circulation loop;
the second molten salt heat exchanger group 304 includes two second molten salt heat exchangers 30401, and the two second molten salt heat exchangers 30401 are connected in parallel with each other through a second branch 30402;
the input end of the second molten salt heat exchanger group 304 is communicated with the intermediate pressure cylinder 102, and the output end of the second molten salt heat exchanger group 304 is communicated with the low-pressure cylinder 103 to form a circulation loop;
the first branch 30302 and the second branch 30402 are both provided with regulating valves 4.
The branch/loop design in this embodiment is designed to operate in an on-off or simultaneous manner in actual operation for ease of maintenance, and all branches/loops may be eliminated if equipment costs are a concern.
Meanwhile, the hydrophobic cooler 105 in the present embodiment may be eliminated.
Similarly, other device locations may also be used for one-on-one-off standby with reference to the above-mentioned design branch/loop, which is not described herein again.
Specifically, through being equipped with steam turbine system 1, electric boiler heating system 2 and fused salt heat accumulation system 3, when coal-fired thermoelectric unit low power generation load, improve unit heating capacity, when unit response electric wire netting degree of depth peak shaving, cooperation electric boiler 201 heat supply, can realize that coal-fired thermal power plant guarantees degree of depth peak shaving under the condition of heat supply area, be favorable to promoting the operation flexibility of unit, improve thermoelectric unit degree of depth peak shaving's ability, and, through being equipped with hot melt salt jar 301 and cold melt salt jar 302, can make thermoelectric unit thermoelectric decoupling zero, be favorable to strengthening thermoelectric unit flexibility operational capability, and simultaneously, can turn into steam with the heat in the hot melt salt jar 301, can be used for the heat supply, steam supply and electricity generation, through resource utilization.
In the technical scheme, the comprehensive system for the electrode boiler and the fused salt heat storage to participate in the thermoelectric decoupling of the coal-fired thermal power plant has the following beneficial effects:
according to the system, the steam turbine system 1, the electric boiler heat supply system 2 and the molten salt heat storage system 3 are used for improving the heat supply capacity of the unit when the coal-fired thermoelectric unit is in low power generation load, and the deep peak regulation of the heat supply area of the coal-fired thermoelectric plant can be realized by matching with the heat supply of the electric boiler, so that the operation flexibility of the unit is improved, and the deep peak regulation capacity of the thermoelectric unit is improved;
the system can decouple the heat and electricity of the thermoelectric unit, and is beneficial to enhancing the flexible operation capability of the thermoelectric unit.
The electric boiler heat supply system and the molten salt heat storage system are both provided with branches/loops, and work in a mode of one-on one-standby or simultaneous opening during normal work, so that the overhaul and maintenance effects and the heat supply effect are improved.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (2)
1. Electrode boiler and fused salt heat accumulation participate in coal-fired steam power plant's integrated system of thermoelectric decoupling, its characterized in that, this system mainly includes:
a steam turbine system (1);
an electric boiler heating system (2) connected with the steam turbine system (1) and located at the process downstream of the steam turbine system (1); and
a molten salt heat storage system (3) located at the process upstream of the electric boiler heat supply system (2);
the electric boiler heating system (2) is provided with an electric boiler (201) and an electrode boiler primary side heat exchanger (202) communicated with the electric boiler (201) through a pipeline;
the pipeline between the electric boiler (201) and the electrode boiler primary side heat exchanger (202) of the electric boiler heating system (2) is at least provided with two parallel pipelines, and the two parallel pipelines communicate the electric boiler (201) and the electrode boiler primary side heat exchanger (202) in an open-standby mode;
the two parallel pipelines are both provided with an adjusting valve (4) and an electric boiler primary water pump (203);
the side, communicated with the steam turbine system (1), of the molten salt heat storage system (3) is communicated through a molten salt heat exchanger group;
the molten salt heat exchanger group comprises a first molten salt heat exchanger group (303) which is respectively communicated with a high-pressure cylinder (101) of the steam turbine and a second molten salt heat exchanger group (304) which is communicated with a medium-pressure cylinder (102) and a low-pressure cylinder (103) of the steam turbine;
the first molten salt heat exchanger group (303) comprises at least two first molten salt heat exchangers (30301) formed by a first branch (30302) and connected in parallel;
the second molten salt heat exchanger group (304) comprises at least two second molten salt heat exchangers (30401) formed into parallel connection through a second branch (30402);
the steam turbine system (1) comprises the high-pressure cylinder (101), an intermediate-pressure cylinder (102) and a low-pressure cylinder (103);
the low-pressure cylinder (103) is communicated with a heat supply network heater (104) through a pipeline, the heat supply network heater (104) is communicated with a hydrophobic cooler (105) through a pipeline, and the low-pressure cylinder (103) is connected with an evaporation superheater (305) through a pipeline;
the hydrophobic cooler (105) is connected with an evaporation superheater (305) of the molten salt heat storage system (3) through a hydrophobic booster pump (107);
a condenser (106) is connected to the process downstream of the low-pressure cylinder (103);
the electric boiler heating system (2) comprises the electric boiler (201) and the electrode boiler primary side heat exchanger (202);
the electrode boiler primary side heat exchanger (202) is communicated with the heat supply network heater (104);
the output end of the heat supply network heater (104) is used for conveying circulating heat supply network water to the outside;
the external heating equipment is communicated with the hydrophobic cooler (105) through a pipeline and conveys the heated circulating heat supply network backwater to the hydrophobic cooler (105) to realize the circulation of hot water;
the molten salt heat storage system (3) comprises a hot molten salt tank (301) located at the upstream of the process and a cold molten salt tank (302) communicated with the downstream of the process through the molten salt heat exchanger group;
the molten salt heat exchanger group is stored in the cold molten salt tank (302) after passing through hot molten salt provided by the hot molten salt tank (301) and exchanging heat with an internal medium.
2. The electrode boiler and molten salt heat storage integrated system participating in thermoelectric decoupling of coal-fired thermal power plant as claimed in claim 1, wherein said first molten salt heat exchanger group (303) comprises two first molten salt heat exchangers (30301), and said two first molten salt heat exchangers (30301) are connected in parallel with each other through a first branch (30302);
the first molten salt heat exchanger group (303) and a high-pressure cylinder (101) of the steam turbine form a circulation loop;
the second molten salt heat exchanger group (304) comprises two second molten salt heat exchangers (30401), and the two second molten salt heat exchangers (30401) are connected in parallel through a second branch (30402);
the input end of the second molten salt heat exchanger group (304) is communicated with the middle pressure cylinder (102), and the output end of the second molten salt heat exchanger group (304) is communicated with the low pressure cylinder (103) to form a circulation loop;
and the first branch (30302) and the second branch (30402) are both provided with regulating valves (4).
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| CN201911097536.9A CN110793087B (en) | 2019-11-12 | 2019-11-12 | Electrode boiler and comprehensive system for participating in thermoelectric decoupling of coal-fired thermal power plant by means of fused salt heat storage |
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| CN201911097536.9A CN110793087B (en) | 2019-11-12 | 2019-11-12 | Electrode boiler and comprehensive system for participating in thermoelectric decoupling of coal-fired thermal power plant by means of fused salt heat storage |
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| CN112610292A (en) * | 2020-12-11 | 2021-04-06 | 北京前沿动力科技股份有限公司 | Deep peak regulation power generation system |
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| CN205823354U (en) * | 2016-07-26 | 2016-12-21 | 康达新能源设备股份有限公司 | Groove type solar conduction oil and fused salt mixing heat power generation system |
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| CN204419553U (en) * | 2014-12-04 | 2015-06-24 | 商丘裕东发电有限责任公司 | A kind of feed water pump female footballer |
| KR101589417B1 (en) * | 2015-09-08 | 2016-01-27 | 백진순 | Hot water heating systems using thermal oil as heat accumulation substance |
| CN106287902A (en) * | 2016-07-28 | 2017-01-04 | 华北电力大学 | Cogeneration units and peak regulating method thereof associated with electric heat pump and regenerative apparatus |
| CN206386990U (en) * | 2016-12-16 | 2017-08-08 | 赫普热力发展有限公司 | Solid electric heat-storage device coordinates steam-operating water circulating pump depth peak regulation system |
| CN209261636U (en) * | 2018-12-12 | 2019-08-16 | 北京金茂绿建科技有限公司 | The integrated system of the accumulation of heat of bleeder steam fused salt and the heat supply of electric boiler combined adjusting peak |
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