CN105162107A - Power supply and distribution micro-grid system based on energy storage of industrialized salt making pond - Google Patents
Power supply and distribution micro-grid system based on energy storage of industrialized salt making pond Download PDFInfo
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- CN105162107A CN105162107A CN201510616857.0A CN201510616857A CN105162107A CN 105162107 A CN105162107 A CN 105162107A CN 201510616857 A CN201510616857 A CN 201510616857A CN 105162107 A CN105162107 A CN 105162107A
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The invention discloses a power supply and distribution micro-grid system based on energy storage of an industrialized salt making pond. The system comprises a cryogenic working medium power generation device based on energy storage of the industrialized salt making pond, wherein heat energy is stored by the salt pond when the power of a direct-current grid is redundant and the electricity price of the national grid is low. The salt pond for heat storage and cryogenic power generation can have the functions of energy storage and power generation during salt making; the whole power generation, transmission and supply process is performed under intelligent control, and is controlled according to photovoltaic power generation, cryogenic working medium power generation, national grid electricity price valley and load condition, so that power supply and utilization balance can be effectively solved and optimal operation can be realized.
Description
Technical field
The present invention relates to a kind of network variable load accumulated Generate, Generation, Generator volt, the generating of wind-electricity complementary type and defeated, join, using electricity system, belong to micro-capacitance sensor technical field.
Background technology
Electrical network low ebb energy storage power generation needs the economy problems solving accumulation of energy carrier.
Applicable industry salt manufacturing, the patent No. is the patent documentation of ZL201410248591.4, disclose the desalinization of a kind of bidirectional circulating method and after extracting bromine, strong brine concentrates salt producing craft, A, first by hyperfiltration by seawater through high pressure reverse osmosis unit preparing fresh and strong brine, the concentration of the strong brine wherein produced is 70000 ~ 80000ppm;
B, be that the strong brine of 70000 ~ 80000ppm utilizes concentration difference method to adopt bidirectional circulating to carry out air-coal separating by concentration; Until strong brine crystallization;
Described concentration difference method carries out the process that bidirectional circulating carries out air-coal separating, comprises the following steps:
A, the dark brine pit of multiple 12m is set, be numbered: I-XVII, each brine pit is divided into three districts, top 4m is less salt district, pars intermedia 4m is Zhong Yanqu, bottom 4m is Gao Yan district, the separation concentration difference in every district is 2000 ~ 15000ppm, the concentration difference of the same district of adjacent brine pit is also 10000 ~ 30000ppm, and multiple brine pit delimited as brine strength is the salt district of 40000-290000ppm successively;
B, be first that to inject Zhong Yan district be dark 6 meters of, pond of the brine pit XV of 70000ppm for the strong brine of 70000 ~ 80000ppm by concentration;
C, then slowly carried in the Zhong Yan district of the salt solution of the bottom of each brine pit to the high brine pit of upper level salt content with water pump respectively, the low concentration salt solution at the top of upper level brine pit, namely to the overflow of next stage brine pit, forms bidirectional circulating;
After d, sodium chloride carry out crystallization when 290000ppm, in 270000 ~ 290000ppm strong brine district, sodium chloride crystalline solid is proposed;
C, by strong brine air-coal separating process, successively the magnesium chloride contained in strong brine, potassium chloride and bromine to be extracted.This patent mainly utilizes strong brine salt manufacturing after desalinization, and after solving desalinization, the problem polluted arranged outward by strong brine, and yield per unit area is 30 ~ 50 times of saltpan method salt manufacturing output, and cost is far below salt pan salt manufacturing.
And each salt pool above-mentioned all can realize heat accumulation function, salinity is higher, temperature is higher, the salt pool in this equipment how is utilized to carry out accumulation of heat and be used, do not relate in above-mentioned patent, the patentee this technique of practical application and adopt concentration difference method carry out bidirectional circulating carry out air-coal separating time, the research of the degree of depth has been carried out to how utilizing of this partial function.
The patent No. is the patent documentation of CN201420456919.7, disclose a kind of solar energy, heat generates electricity, and intelligent control type is defeated, distribution micro-capacitance sensor, comprise common DC bus and control circuit, described common DC bus is connected with Blast Furnace Top Gas Recovery Turbine Unit (TRT) and power consumer apparatus and the batteries for voltage stabilizing balance,, distribution → AC and DC defeated by photovoltaic, photothermal complementary generating → direct current is powered → Based Intelligent Control, whole process controls to carry out to generate electricity at intelligent device, the scheduling of electricity consumption coupling, save multiple conversions link, improve power consumption efficiency 20%.
But the photovoltaic in above-mentioned patent, wind-powered electricity generation are because of extremely de-stabilising effect power supply quality.How by itself and mains supply, energy storage power generation etc. are complementary public, and effectively solving power supply stability and electricity consumption economy, is problem demanding prompt solution.
Summary of the invention
Based on above reason, the problem to be solved in the present invention is to provide one strong brine and implements electrical network low ebb electricity price accumulation of heat generating, and share with photovoltaic, wind-powered electricity generation, the complementation of electrical network electricity, set up independent operating, the supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy of the generating of generating power for their own use, electricity consumption.
This system is with independent operating, and the balance that to generate power for their own use be main generating, electricity consumption intelligent control system effectively can solve generating, electricity consumption, in the hope of reaching the optimal economic running status of system.
In order to solve the problem, the present invention by the following technical solutions:
Based on a supply and distribution micro-grid system for industrialization salt manufacturing salt pond accumulation of energy, this system comprises the cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on the accumulation of energy of industrialization salt manufacturing brine pit.
Further, cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT) is cryogenic fluid DC generator, more than the 60 DEG C hot water that the required energy provides for industrialization salt manufacturing brine pit, are supplied by hot water pipeline by brine pit high-temperature region, generate electricity and deliver to common DC bus for DC480 ~ 600V direct current.
Further, industrialization salt manufacturing brine pit comprises several dark brine pits be arranged side by side, and dark brine pit is divided into high-temperature region, middle warm area and low-temperature space, adopts concentration difference method to carry out bidirectional circulating and carries out air-coal separating.
Further, each brine pit is divided into three districts, top is less salt district, pars intermedia is Zhong Yanqu, bottom is Gao Yan district, the separation concentration difference in every district is 2000 ~ 15000ppm, the concentration difference of the same district of adjacent brine pit is also 10000 ~ 30000ppm, and multiple brine pit delimited successively as brine strength is the salt district of 40000 ~ 290000ppm.
Each warm area warm temperature and brine pit each district salinity adapt, and can effectively improve heat exchange efficiency and heat-accumulating and-keeping effect, salinity is higher, and temperature is higher.
Further, brine pit accumulation of heat is upper cold and lower heat, and in industrialization salt manufacturing, bottom the temperature in the brine pit of high-temperature region be more than 60 DEG C, brine pit surface temperature is lower than 20 DEG C.
Further, take brine pit as accumulation of heat pond, in electricity price low ebb section with variable load accumulated heating heat pump to the heat supply of brine pit high-temperature region, variable load accumulated heating heat pump heat supply temperature is 60 ~ 90 DEG C.
Utilize salt producing craft waste heat recovery heater for thermal source is to warm area heat supply in brine pit in electricity price low ebb section, heat supply temperature is 40 ~ 60 DEG C.
With light heat solar heat collector to the heat supply of brine pit low-temperature space, heat supply temperature is 20 ~ 40 DEG C, and this temperature supplies reverse osmosis water production process requirement simultaneously.
Direct current network electricity and national grid are had more than needed, and carry out hot accumulation of energy when electricity price low ebb with brine pit.
The method utilizes heat pump technical principle, by the effect of heat pump compressor, by consuming certain auxiliary energy (as electric energy), under the acting in conjunction of the cold-producing medium of compressor and heat-exchange system Inner eycle, draw comparatively low temperature heat energy by Environmental Heat Source (as outer for fresh water waste heat, bromine recirculated water processed, salt dryer waste heat, seawater thermal source etc.), be then converted to higher temperatures heat energy and be released into brine pit accumulation of heat by heat exchanger.Energy Efficiency Ratio can reach 8 ~
More than 10.
During work, photovoltaic power generation apparatus, cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT) generate electricity respectively and directly enter common DC bus, and national grid electricity is through rectifying installation rectification access common DC bus power supply as a supplement, and common DC bus access energy storage battery group carries out voltage stabilizing balance.Direct current is divided to run through frequency converter, inverter supply power consumption equipment.
Direct current network electricity is more than needed carries out hot accumulation of energy with during national grid electricity price low ebb with brine pit.Heat accumulation low-temperature electricity-generating implemented by brine pit, energy storage power generation function can be had concurrently while salt manufacturing, whole generating, transmission of electricity and power supply process carry out under Based Intelligent Control, according to photovoltaic generation, cryogenic fluid generating, national grid electricity price Ge Gu peak and loading condition, regulate and control, effectively can solve confession, coulomb balance scheduling, realize optimized operation.
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing explanation
accompanying drawing 1 is the structural representation of the embodiment of the present invention.
In figure: 1-brine pit; The variable load accumulated heating heat pump of 2-; 3-process waste reclaims heater; 4-photo-thermal solar collector; 5-wind power direct current generator; 6-photovoltaic power generation apparatus; 7-energy storage battery group; 8-national grid; 9-cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT); 10-fuel oil, gas power generator; 11-in-situ protection case; 12-rectifying installation; 13-frequency converter; 14-inverter; The large and medium-sized motor of 15-; 16-general electronic corporation; 17-common DC bus; 18-control circuit.
Embodiment
Embodiment, as shown in Figure 1, a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy, comprises the cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT) 9 based on the accumulation of energy of industrialization salt manufacturing brine pit 1.
Cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT) 9 is cryogenic fluid DC generator, more than the 60 DEG C hot water that the required energy provides for industrialization salt manufacturing brine pit 1, supplied by hot water pipeline by brine pit 1 high-temperature region, generate electricity as DC480-600V direct current delivers to common DC bus 17.
Industrialization salt manufacturing brine pit 1 comprises the dark brine pit of the dark 12m that several are arranged side by side, and dark brine pit is divided into high-temperature region, middle warm area and low-temperature space, adopts concentration difference method to carry out bidirectional circulating and carries out air-coal separating.
Each brine pit is divided into three districts, top 4m is less salt district, pars intermedia 4m is Zhong Yanqu, bottom 4m is Gao Yan district, the separation concentration difference in every district is 2000 ~ 15000ppm, the concentration difference of the same district of adjacent brine pit is also 10000 ~ 30000ppm, and multiple brine pit delimited as brine strength is the salt district of 40000 ~ 290000ppm successively;
Brine pit 1 accumulation of heat is upper cold and lower heat, and in industrialization salt manufacturing, bottom the temperature in the brine pit of high-temperature region be about 90 DEG C, brine pit surface temperature is lower than 20 DEG C.
Take brine pit as accumulation of heat pond, in electricity price low ebb section (being generally 23:10 ~ 7:00 at night) with variable load accumulated heating heat pump 2 to brine pit high temperature section heat supply (heat exchanger), variable load accumulated heating heat pump 2 heat supply temperature is more than 60 DEG C.
Utilize salt producing craft waste heat recovery heater 3 for thermal source is to warm area heat supply (heat exchanger) in brine pit 1, heat supply temperature is 40 ~ 60 DEG C.
With photo-thermal solar collector 4(tubular type, slot type) to brine pit 1 low-temperature space heat supply (heat exchanger), heat supply temperature is 20 ~ 40 DEG C.
This temperature supplies reverse osmosis water production process requirement simultaneously.
Each warm area warm temperature and brine pit each district salinity adapt, and can effectively improve heat exchange efficiency and heat-accumulating and-keeping effect.Salinity is higher, and temperature is higher.
Supply and distribution micro-grid system also comprises control circuit 18 and fuel oil, gas power generator 10, wind power direct current generator 5 and photovoltaic power generation apparatus 6.
Fuel oil, gas power generator 10 are DC generator, and fuel oil, gas power generator 10 are DC480-600V DC generation, deliver to common DC bus 17.
Wind power direct current generator 5 is DC480-600V DC generation, delivers to common DC bus 17.
Photovoltaic power generation apparatus 6 is a string combination with 18, powers as DC580V, delivers to common DC bus 17.
Cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT) 9, photovoltaic power generation apparatus 6 and energy storage battery group 7 are electrically connected with common DC bus 17 respectively by in-situ protection case 11.
Described common DC bus 17 is connected with large and medium-sized motor 15, general electronic corporation 16 and for voltage stabilizing balance energy storage battery group 7 and for power supply supplement national grid 8.
National grid 8 is powered with rectifying installation output DC480-600V direct current, delivers to common DC bus 17.
Be connected by rectifying installation 12 between national grid 8 with common DC bus 17, be also electrically connected by in-situ protection case 11 between rectifying installation 12 with common DC bus 17.
Large and medium-sized motor 15, general electronic corporation 16 are electrically connected with common DC bus 17 respectively by in-situ protection case 11 and frequency converter 13.
During work, photovoltaic power generation apparatus 6, cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT) 9 generate electricity respectively and directly enter common DC bus 17, national grid 8 electricity is through rectifying installation 12 rectification access common DC bus 17 power supply as a supplement, and common DC bus 17 accesses energy storage battery group 7 and carries out voltage stabilizing balance.Point direct current supplies large and medium-sized motor 15 through frequency converter 13, inverter 14, general electronic corporation 16 runs;
Direct current network electricity is more than needed carries out hot accumulation of energy with during national grid electricity price low ebb with brine pit 1.
Whole generating, transmission of electricity and power supply process carry out under Based Intelligent Control, according to photovoltaic generation, cryogenic fluid generating, national grid electricity price Ge Gu peak and loading condition, regulate and control, and effectively can solve confession, coulomb balance scheduling, realize optimized operation.
We have been described in detail invention according to national patent method now, can identify improvement or the replacement of specific embodiment disclosed herein for those skilled in the art.These amendments are within the spirit and scope of the present invention.
Claims (10)
1. based on a supply and distribution micro-grid system for industrialization salt manufacturing salt pond accumulation of energy, it is characterized in that: this system comprises the cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT) (9) based on industrialization salt manufacturing brine pit (1) accumulation of energy.
2. a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy according to claim 1, is characterized in that:
Cryogenic fluid Blast Furnace Top Gas Recovery Turbine Unit (TRT) (9) is cryogenic fluid DC generator, the required energy is more than the 60 DEG C hot water that industrialization salt manufacturing brine pit (1) provides, supplied by hot water pipeline by brine pit (1) high-temperature region, generate electricity as DC480-600V direct current delivers to common DC bus (17).
3. a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy according to claim 1, is characterized in that:
Industrialization salt manufacturing brine pit (1) comprises several dark brine pits be arranged side by side, and dark brine pit is divided into high-temperature region, middle warm area and low-temperature space, adopts concentration difference method to carry out bidirectional circulating and carries out air-coal separating.
4. a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy according to claim 3, is characterized in that:
Each brine pit is divided into three districts, top is less salt district, pars intermedia is Zhong Yanqu, bottom is Gao Yan district, the separation concentration difference in every district is 2000 ~ 15000ppm, the concentration difference of the same district of adjacent brine pit is also 10000 ~ 30000ppm, and multiple brine pit delimited successively as brine strength is the salt district of 40000 ~ 290000ppm.
5. a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy according to claim 3, is characterized in that:
Brine pit (1) accumulation of heat is upper cold and lower heat, and in industrialization salt manufacturing, bottom the temperature in the brine pit of high-temperature region be more than 60 DEG C, brine pit surface temperature is lower than 20 DEG C.
6. a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy according to claim 3, is characterized in that:
With brine pit (1) for accumulation of heat pond, in electricity price low ebb section with variable load accumulated heating heat pump (2) to the heat supply of brine pit high-temperature region, variable load accumulated heating heat pump (2) heat supply temperature is 60 ~ 90 DEG C.
7. a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy according to claim 3, is characterized in that:
Utilize salt producing craft waste heat recovery heater (3) for thermal source is to warm area heat supply in brine pit in electricity price low ebb section, heat supply temperature is 40 ~ 60 DEG C.
8. a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy according to claim 3, is characterized in that:
In electricity price low ebb section in order to photo-thermal solar collector (4) to brine pit (1) low-temperature space heat supply, heat supply temperature is 20 ~ 40 DEG C, and this temperature supplies reverse osmosis water production process requirement simultaneously.
9. a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy according to claim 3, is characterized in that:
Each warm area warm temperature and brine pit each district salinity adapt, and can effectively improve heat exchange efficiency and heat-accumulating and-keeping effect, salinity is higher, and temperature is higher.
10. a kind of supply and distribution micro-grid system based on industrialization salt manufacturing salt pond accumulation of energy according to claim 1, is characterized in that: direct current network electricity is more than needed and national grid is more than needed, carries out hot accumulation of energy when electricity price low ebb with brine pit (1).
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| US20070114024A1 (en) * | 2005-11-18 | 2007-05-24 | Daniels Vernon D | Anti-oxidizing process for non-cryogenic nitrogen |
| CN103101932A (en) * | 2012-12-14 | 2013-05-15 | 刘典军 | Comprehensive utilizing system for extracting salt from seawater, preparing drinking water and recovering power generation energy |
| CN103939306A (en) * | 2014-04-11 | 2014-07-23 | 中国华能集团清洁能源技术研究院有限公司 | Two-loop type solar thermal power generation system |
| CN104030320A (en) * | 2014-06-06 | 2014-09-10 | 蔡泮敏 | Process for producing salt through concentrating strong brine after sea water desalination adopting two-way cycle method and bromine extraction |
| CN204089214U (en) * | 2014-08-14 | 2015-01-07 | 潍坊北海绿洲太阳能科技股份有限公司 | A kind of solar energy, heat generating intelligent control type are defeated, distribution micro-capacitance sensor |
| CN204630086U (en) * | 2014-12-31 | 2015-09-09 | 深圳市爱能森科技有限公司 | Wind-powered electricity generation, photovoltaic, photo-thermal and medium heat accumulation associating energy supplying system |
-
2015
- 2015-09-25 CN CN201510616857.0A patent/CN105162107A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070114024A1 (en) * | 2005-11-18 | 2007-05-24 | Daniels Vernon D | Anti-oxidizing process for non-cryogenic nitrogen |
| CN103101932A (en) * | 2012-12-14 | 2013-05-15 | 刘典军 | Comprehensive utilizing system for extracting salt from seawater, preparing drinking water and recovering power generation energy |
| CN103939306A (en) * | 2014-04-11 | 2014-07-23 | 中国华能集团清洁能源技术研究院有限公司 | Two-loop type solar thermal power generation system |
| CN104030320A (en) * | 2014-06-06 | 2014-09-10 | 蔡泮敏 | Process for producing salt through concentrating strong brine after sea water desalination adopting two-way cycle method and bromine extraction |
| CN204089214U (en) * | 2014-08-14 | 2015-01-07 | 潍坊北海绿洲太阳能科技股份有限公司 | A kind of solar energy, heat generating intelligent control type are defeated, distribution micro-capacitance sensor |
| CN204630086U (en) * | 2014-12-31 | 2015-09-09 | 深圳市爱能森科技有限公司 | Wind-powered electricity generation, photovoltaic, photo-thermal and medium heat accumulation associating energy supplying system |
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Application publication date: 20151216 |