CN204084540U - Fused salt regenerative electrochemical heating central heating system - Google Patents
Fused salt regenerative electrochemical heating central heating system Download PDFInfo
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- CN204084540U CN204084540U CN201420114699.XU CN201420114699U CN204084540U CN 204084540 U CN204084540 U CN 204084540U CN 201420114699 U CN201420114699 U CN 201420114699U CN 204084540 U CN204084540 U CN 204084540U
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- 150000003839 salts Chemical class 0.000 title claims abstract description 255
- 238000010438 heat treatment Methods 0.000 title claims abstract description 65
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000012267 brine Substances 0.000 claims abstract description 19
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 230000008676 import Effects 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 238000009825 accumulation Methods 0.000 claims description 8
- 239000008400 supply water Substances 0.000 claims description 5
- 239000012943 hotmelt Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000005338 heat storage Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Fused salt regenerative electrochemical heating central heating system, belongs to heat storage technology field.Comprise fused salt electric heater, the hot salt cellar of high temperature, the cold salt cellar of low temperature, pump for liquid salts, brine heat exchanger, heat user.In the trough-electricity period at a low price at night, to be extracted out by fused salt in cold salt cellar by pump for liquid salts and be transported to after fused salt is heated to high temperature by fused salt electric heater and enter hot salt cellar, peak times of power consumption utilize pump for liquid salts to be extracted out by the high-temperature molten salt accumulating heat in hot salt cellar to be transported to fused salt-heating aquatic products heat-dissipating water of water-to-water heat exchanger heating municipal administration and heat to resident by day.For the coal-burning boiler central heating system generally adopted at present, as long as transformed the boiler room of central heating system, be transformed into fused salt heat-lag time, municipal heating network and heating end-equipment all do not need to transform.This system can play peak load shifting, reduces coal-fired use amount, plays the effect of protection of the environment.
Description
Technical field
The utility model relates to a kind of electrical heating hold over system, particularly relates to and adopts fused salt as accumulation of heat working medium, utilize the system of trough-electricity central heating, belong to heat storage technology field.
Background technology
Under current haze shrouds the situation of China, Chinese multiple provinces and cities are in order to obtain pure and fresh air, start coal one after another and change electrical engineering.Beijing starts coal simultaneously and changes gas engineering, and each large coal-fired boiler has been made into gas-firing to heat, and what bring thus is that Pekinese's natural gas is seriously not enough.In addition, the development of society and the raising of living standards of the people, China's power structure be there occurs sharply change, peak power wretched insufficiency, peak-valley difference continues to increase, the generating set fallback of paddy phase, for solving this contradiction, propose " peak load shifting " measure in power industry, implement time-of-use tariffs, encourage the electricity consumption of paddy phase.Electrical heating salt melting system is adopted to realize central heating, unnecessary electric power can be converted to thermal energy storage in high-temperature molten salt when low power consumption, again the heat stored is carried out release heating when peak times of power consumption, not only solve the pollution of city coal-burning boiler to air, alleviate an effective technological approaches of electrical network peak-valley difference especially.
Utility model content
In view of the deficiency that prior art exists, the utility model provides a kind of trough-electricity that adopts and heats high-temperature molten salt, for the fused salt regenerative electrochemical the saved energy and protect environment heating central heating system of peak times of power consumption heating.
A kind of fused salt regenerative electrochemical heating central heating system, is characterized in that: mainly comprise for making the fused salt electric heater 1 of fused salt intensification heat accumulation, the hot salt cellar 2 of storage high-temperature molten salt, the cold salt cellar 3 storing low-temperature molten salt, low-temperature molten salt pump 4, high-temperature melting salt pump 5, carrying out brine heat exchanger 6, the heat user 7 of heat exchange for fused salt and water.
Fused salt electric heater 1 adopts snakelike pipe 9 as heating element heater, there is housing the outside of snakelike pipe 9, housing is provided with fused salt outlet and fused salt import, fused salt outlet is provided with molten salt heater outlet temperature sensor 10, fused salt import is provided with molten salt heater inlet temperature sensor 11, be used for monitoring the temperature heating fused salt, the snakelike pipe 9 of fused salt electric heater 1 is connected with power supply, for controlling the start and stop of electric heater.
The fused salt outlet of fused salt electric heater 1 is connected by the import of pipeline with hot salt cellar 2, the outlet of hot salt cellar 2 is connected with the tube side import of brine heat exchanger 6 via high-temperature melting salt pump 5, the tube side outlet of brine heat exchanger 6 is connected with the import of cold salt cellar 3, the outlet of cold salt cellar 3 is connected via the import of low-temperature molten salt pump 4 with fused salt electric heater 1, and the closed pipeline that electric heater 1, hot salt cellar 2, cold salt cellar 3, low-temperature molten salt pump 4, high-temperature melting salt pump 5, brine heat exchanger 6 are formed is fused salt loop.
The shell side of brine heat exchanger 6 is communicated with heat user by supply channel 30, water return pipeline 31 and forms water loop, brine heat exchanger 6 shell-side outlet place supply channel is equipped with water loop system pressure sensor 24, water loop system temperature sensor 25, water loop flow system flow sensor 26, water return pipeline 31 is provided with water circulating pump 27 and constant pressure supply water and water treatment system 28.
Hot salt cellar 2, cold salt cellar 3 top are separately installed with as fused salt provides hot melt salt pump 5, the sloppy heat salt pump 4 of power, and each jar top is provided with two pump for liquid salts, the using and the reserved; Hot salt cellar 2 is provided with the hot salt cellar temperature sensor 12 for monitor temperature, top is provided with the hot salt cellar level monitoring mouth 14 for monitoring liquid level, and bottom is provided with the hot salt cellar salt outlet 16 for emptying fused salt; Cold salt cellar 3 is provided with the cold salt cellar temperature sensor 13 for monitor temperature, top is provided with the cold salt cellar level monitoring mouth 15 for monitoring liquid level, and bottom is provided with the cold salt cellar salt outlet 17 for emptying fused salt.
Pipeline between fused salt electric heater 1 and hot salt cellar 2 is provided with hot salt line-pressure sensor 18, hot salt line temperature sensor 19, hot salt line flow sensor 20, the pipeline between fused salt electric heater 1 and cold salt cellar 3 is provided with cold salt line-pressure sensor 21, cold salt line temperature sensor 22, cold salt line flow sensor 23.
Fused salt circuit system (large dotted line frame), comprises all pipe-line systems for carrying fused salt, and the pressure sensor 18,21 that pipe-line system is installed, temperature sensor 19,22, flow sensor 20,23;
Brine heat exchanger 6 adopts tube shell type structure, and fused salt is in pipe-line system, and water is in shell side system, and the two adopts forced-convection heat transfer form to carry out heat exchange.
Water loop system (little dotted line frame), comprises feed pipe, return pipe, and the temperature sensor 25 that pipe-line system is installed, pressure sensor 24, flow sensor 26, water circulating pump 27, heat user 7 and constant pressure supply water and water treatment system 28.
Fused salt regenerative electrochemical of the present utility model heating central heating system also comprises controller 8, respectively with fused salt circuit system and water loop system each sensor and power supply 8 be connected.
Heat user 7 is the user side of heating, and the municipal pipeline hot-water heating system reserved all can be adopted to heat, and the end equipment of user is also all without the need to changing.
Adopt fused salt mixt as accumulation of heat working medium, utilize trough-electricity to carry out the fused salt regenerative electrochemical heating central heating system of accumulation of heat.In the trough-electricity period at a low price at night, to be extracted out by fused salt in cold salt cellar by pump for liquid salts and be transported to after fused salt is heated to high temperature (about about 500 DEG C) by fused salt electric heater and enter hot salt cellar, peak times of power consumption utilize pump for liquid salts to be extracted out by the high-temperature molten salt accumulating heat in hot salt cellar to be transported to fused salt-heating aquatic products heat-dissipating water of water-to-water heat exchanger heating municipal administration and heat to resident by day.For the coal-burning boiler central heating system generally adopted at present, as long as transformed the boiler room of central heating system, be transformed into fused salt heat-lag time, municipal heating network and heating end-equipment all do not need to transform.
The beneficial effects of the utility model are: the utility model adopts central heating to combine with electrical heating accumulation of heat, adopt the fused salt mixt that hot property is excellent as heat storage medium simultaneously.The liquid temperature wide ranges of fused salt, thermal capacity is large, and steam forces down, and fused salt circuit system is safe and reliable, has superior heat storage performance, and nontoxic, cheap and easy to get.Fused salt was heated and was renewed by energy evening, for the heating on daytime, took full advantage of valley period power power, alleviated electrical network peak-valley difference, had saved the energy.By using valley period power power to instead of coal combustion, reducing coal-fired use amount, greatly reducing the pollution to air.
Accompanying drawing explanation
Fig. 1 is composition structure chart of the present utility model;
In figure: 1, fused salt electric heater, 2, high-temperature hot salt cellar, 3, low temperature cold salt cellar, 4, low-temperature molten salt pump, 5 high-temperature melting salt pumps, fused salt circuit system (large dotted line frame), 6, brine heat exchanger, 7, heat user, water loop system (little dotted line frame), 8, controller, 9, snakelike heating pipe, 10, molten salt heater outlet temperature sensor, 11, molten salt heater inlet temperature sensor, 12, hot salt cellar temperature sensor, 13 cold salt cellar temperature sensors, 14, hot salt cellar level monitoring mouth, 15, cold salt cellar level monitoring mouth, 16, hot salt cellar salt outlet, 17, cold salt cellar salt outlet, 18, hot salt line-pressure sensor, 19, hot salt line temperature sensor, 20, hot salt line flow sensor, 21, cold salt line-pressure sensor, 22, cold salt line temperature sensor, 23, cold salt line flow sensor, 24, water loop system pressure sensor, 25, water loop system temperature sensor, 26, water loop flow system flow sensor, 27, water circulating pump, 28, constant pressure supply water and water treatment system, 29, power supply, 30 supply channels, 31, water return pipeline.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment, the utility model is further elaborated.
Embodiment 1
As shown in Figure 1, a kind of fused salt that adopts is as the regenerative electrochemical heating central heating system of accumulation of heat working medium, and comprise the power supply providing electric energy, Molten salt heating system, fused salt heat reservoir, fused salt heat exchange system and district heating system, concrete structure is as follows:
Described fused salt electric heater 1 adopts snakelike pipe 9 as heating element heater, and suffered thermal stress restriction is less, and toggle speed is faster, is applicable to power supply frequent start-stop and variable load operation demand.Described accumulation of heat working medium is fused salt mixt, and it is large that fused salt mixt has thermal capacity, Heat stability is good, viscosity is low, and vapour pressure is little, liquid temperature wide ranges, the plurality of advantages such as cost is low, can be converted into high temperature heat by heating fused salt by trough-electricity and be stored in high-temperature molten salt.Described fused salt heat reservoir adopts double-pot type arrangement, and it comprises the cold salt cellar 3 for storing low-temperature molten salt and the hot salt cellar 2 for storing high-temperature molten salt, and the two is cylindrical structural, and adopt stainless steel, dome lid, external insulation, vertically places.Cold salt cellar 3 is the low-temperature molten salt after heat-exchange system heat release for stocking system initial start stage or run duration, and hot salt cellar 2 is for storing the high-temperature molten salt after molten salt heater heat temperature raising; Be separately installed with two low-temperature molten salt pumps 4 and two high-temperature melting salt pumps 5 at cold salt cellar 3 and hot salt cellar 2 top, all adopt the form of the using and the reserved, prevent due to pump for liquid salts fault and cause the contingency of whole system to occur.Pump for liquid salts is long shaft submerged pump, adopts the vertical installation in top.Cold salt cellar 3, hot salt cellar 2 is all provided with temperature sensor 12,13, for monitoring the temperature of the two.The two is equipped with level monitoring mouth 14,15, can be fed back the safety levels of fused salt by liquid level sensor.Salt pot bottom is all designed with the salt outlet 16,17 of fused salt, for fused salt is emptying when accident or conventional maintenance.
Described fused salt circuit system (large dotted line frame), comprises hot salt pipeline, cold salt pipeline, and the pressure sensor 18,21 on pipeline, temperature sensor 19,22, flow sensor 20,23.These sensors are by signal transmission to controller 8, and controller 8 these signals comprehensive constantly regulate the frequency of high-temperature melting salt pump 5 and low-temperature molten salt pump 4 to meet different operating conditions.Described water loop system (little dotted line frame), comprises feed pipe, the pressure sensor 24 on return pipe and pipeline, temperature sensor 25, flow sensor 26, water circulating pump 27, heat user 7 and constant pressure supply water and water treatment system 28.
In addition, fused salt heat exchanging equipment all adopts fused salt to walk shell-side, and water under high pressure/steam walks the arrangement of pipe side, thus greatly thinning shell wall, cost-saving, when being also beneficial to systematic failures or conventional maintenance, fused salt is emptying simultaneously.
Operation principle of the present utility model and implementation procedure as follows:
For Pekinese's time-of-use tariffs, at 22:00-morning 8:00 at night, fused salt electric heater starts, utilize trough-electricity that the low-temperature molten salt extracted out from cryogenic tank by low-temperature molten salt pump (being about about 200 DEG C) is heated to high temperature (being about about 500 DEG C), regulate the fused salt of high-temperature hot salt cellar to import and export flow by flow sensor, make a part of high-temperature molten salt be stored in hot salt cellar, for the heating of peak times of power consumption, a part enters brine heat exchanger, for the heating at night.Enter the high-temperature molten salt of brine heat exchanger and municipal water use to carry out heat exchange by forced convection form municipal water use is heated to 95 DEG C from about 70 DEG C of import, the low-temperature molten salt after heat exchange gets back to cold salt cellar, completes a cycle heat exchange.Municipal water use after heating then enters water knockout drum, and be assigned to each heat user end, municipal water use completes once circulates, then come together in water collector, for carrying out heat exchange next time with high-temperature molten salt.8:00-22:00 in evening by day, electric heater is out of service, and high-temperature molten salt is constantly transported in brine heat exchanger by the pump for liquid salts of hot salt cellar, for the heat exchange of fused salt and municipal water use, realizes the heating of peak times of power consumption.The fused salt of heat release cooling is then got back in low-temperature molten salt tank.
Whole system is all realized by microcomputer controller 8 Based Intelligent Control.This microcomputer controller carrys out start and stop and the heating power of Intelligent adjustment fused salt electric heater by the signal that temperature sensor, flow sensor etc. feed back, and regulates the frequency of pump for liquid salts in hot and cold salt cellar to control the flow of fused salt to meet the different demands of heat user end.
Claims (6)
1. a fused salt regenerative electrochemical heating central heating system, is characterized in that: mainly comprise for the cold salt cellar (3), low-temperature molten salt pump (4), high-temperature melting salt pump (5), the brine heat exchanger (6) of carrying out heat exchange for fused salt and water, the heat user (7) that make the fused salt electric heater (1) of fused salt intensification heat accumulation, store the hot salt cellar (2) of high-temperature molten salt, store low-temperature molten salt;
Fused salt electric heater (1) adopts snakelike pipe (9) as heating element heater, there is housing the outside of snakelike pipe (9), housing is provided with fused salt outlet and fused salt import, fused salt outlet is provided with molten salt heater outlet temperature sensor (10), fused salt import is provided with molten salt heater inlet temperature sensor (11), be used for monitoring the temperature heating fused salt, the snakelike pipe (9) of fused salt electric heater (1) is connected with power supply, for controlling the start and stop of electric heater;
The fused salt outlet of fused salt electric heater (1) is connected by the import of pipeline with hot salt cellar (2), the outlet of hot salt cellar (2) is connected via the tube side import of high-temperature melting salt pump (5) with brine heat exchanger (6), the tube side outlet of brine heat exchanger (6) is connected with the import of cold salt cellar (3), the outlet of cold salt cellar (3) is connected via the import of low-temperature molten salt pump (4) with fused salt electric heater (1), electric heater (1), hot salt cellar (2), cold salt cellar (3), low-temperature molten salt pump (4), high-temperature melting salt pump (5), the closed pipeline that brine heat exchanger (6) is formed is fused salt loop,
The shell side of brine heat exchanger (6) is communicated with heat user by supply channel (30), water return pipeline (31) and forms water loop, brine heat exchanger (6) shell-side outlet place supply channel is equipped with water loop system pressure sensor (24), water loop system temperature sensor (25), water loop flow system flow sensor (26), water return pipeline (31) is provided with water circulating pump (27) and constant pressure supply water and water treatment system (28).
2. according to the fused salt regenerative electrochemical heating central heating system of claim 1, it is characterized in that: hot salt cellar (2), cold salt cellar (3) top are separately installed with as fused salt provides hot melt salt pump (5), the sloppy heat salt pump (4) of power, each jar top is provided with two pump for liquid salts, the using and the reserved.
3. according to the fused salt regenerative electrochemical heating central heating system of claim 1, it is characterized in that: hot salt cellar (2) is provided with the hot salt cellar temperature sensor (12) for monitor temperature, top is provided with the hot salt cellar level monitoring mouth (14) for monitoring liquid level, and bottom is provided with the hot salt cellar salt outlet (16) for emptying fused salt; Cold salt cellar (3) is provided with the cold salt cellar temperature sensor (13) for monitor temperature, top is provided with the cold salt cellar level monitoring mouth (15) for monitoring liquid level, and bottom is provided with the cold salt cellar salt outlet (17) for emptying fused salt.
4. according to the fused salt regenerative electrochemical heating central heating system of claim 1, it is characterized in that: the pipeline between fused salt electric heater (1) and hot salt cellar (2) is provided with hot salt line-pressure sensor (18), hot salt line temperature sensor (19), hot salt line flow sensor (20), the pipeline between fused salt electric heater (1) and cold salt cellar (3) is provided with cold salt line-pressure sensor (21), cold salt line temperature sensor (22), cold salt line flow sensor (23).
5. according to the fused salt regenerative electrochemical heating central heating system of claim 1, it is characterized in that: brine heat exchanger (6) adopts tube shell type structure, fused salt is in pipe-line system, and water is in shell side system, and the two adopts forced-convection heat transfer form to carry out heat exchange.
6., according to the fused salt regenerative electrochemical heating central heating system of claim 1, it is characterized in that: also comprise controller (8), respectively with fused salt circuit system and water loop system each sensor and power supply be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114699.XU CN204084540U (en) | 2014-03-13 | 2014-03-13 | Fused salt regenerative electrochemical heating central heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114699.XU CN204084540U (en) | 2014-03-13 | 2014-03-13 | Fused salt regenerative electrochemical heating central heating system |
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| Publication Number | Publication Date |
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| CN204084540U true CN204084540U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420114699.XU Expired - Lifetime CN204084540U (en) | 2014-03-13 | 2014-03-13 | Fused salt regenerative electrochemical heating central heating system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836703A (en) * | 2014-03-13 | 2014-06-04 | 北京工业大学 | Molten salt heat storage type electric heating central heating system |
| CN105387636A (en) * | 2015-12-21 | 2016-03-09 | 九格能源科技（天津）有限公司 | Linear Fresnel transmission type fused salt stored energy utilization system |
| CN106439994A (en) * | 2016-08-19 | 2017-02-22 | 安徽元琛环保科技股份有限公司 | Low-energy-consumption heating system |
| CN108413369A (en) * | 2018-01-31 | 2018-08-17 | 东南大学 | Low capacity fuse salt hot stored electric steam boiler system |
-
2014
- 2014-03-13 CN CN201420114699.XU patent/CN204084540U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836703A (en) * | 2014-03-13 | 2014-06-04 | 北京工业大学 | Molten salt heat storage type electric heating central heating system |
| CN103836703B (en) * | 2014-03-13 | 2017-03-08 | 中投亿星新能源投资有限公司 | Fused salt regenerative electrochemical heats central heating system |
| CN105387636A (en) * | 2015-12-21 | 2016-03-09 | 九格能源科技（天津）有限公司 | Linear Fresnel transmission type fused salt stored energy utilization system |
| CN106439994A (en) * | 2016-08-19 | 2017-02-22 | 安徽元琛环保科技股份有限公司 | Low-energy-consumption heating system |
| CN108413369A (en) * | 2018-01-31 | 2018-08-17 | 东南大学 | Low capacity fuse salt hot stored electric steam boiler system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150107 |
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| CX01 | Expiry of patent term |