CN104279545B - A kind of paddy electricity steam boiler of Molten Salt Heat Transfer heat accumulation and its method for preparing steam - Google Patents
A kind of paddy electricity steam boiler of Molten Salt Heat Transfer heat accumulation and its method for preparing steam Download PDFInfo
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- CN104279545B CN104279545B CN201410462771.2A CN201410462771A CN104279545B CN 104279545 B CN104279545 B CN 104279545B CN 201410462771 A CN201410462771 A CN 201410462771A CN 104279545 B CN104279545 B CN 104279545B
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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
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Abstract
The present invention relates to a kind of paddy electricity steam boiler of Molten Salt Heat Transfer heat accumulation and its method for preparing steam, the boiler includes electric heating energy-storage device, steam output device, preheater, low-temperature molten salt tank and heat transfer medium pipeline；The electric heating energy-storage device includes electric heating element and high temperature melting salt cellar, and the electric heating element is opened in the paddy electricity period；The heat transfer medium pipeline connection high temperature melting salt cellar, steam output device, low-temperature molten salt tank and heat transfer medium can be circulated wherein；Heat-retaining mass in heat transfer medium and the high temperature melting salt cellar is fused salt.The paddy electricity that one aspect of the present invention make use of evening cheap is heated and used in the peak electric time, good in economic efficiency, energy-conserving and environment-protective, on the other hand the heat transfer of quartz sand composite fused salt heat accumulation is utilized, temperature in use is high, energy storage efficiency is high, heat is not wasted, and heat accumulation ensures that the heat that sustainable utilization paddy electricity is provided in paddy electricity cycle in 24 hours produces steam.
Description
Technical field
The present invention relates to electric steam boiler field, and in particular to a kind of utilization paddy electricity and can energy storage electric steam boiler and system
The method of standby steam.
Background technology
Boilers heated electrically is simple to operate due to easy to use, and energy conveying is not limited by time place, in daily life
Living and industrial circle is widely used.But existing boilers heated electrically can only when in use between heat, and it is in daily life
Common use time causes energy cost higher in the peak electric period in work.Therefore the energy cost of boilers heated electrically how is caused
Reduction, with higher economy to ensure that practicality is primary study direction at this stage.
The content of the invention
In order to solve the problems of the prior art, the invention provides a kind of paddy electricity steam boiler of Molten Salt Heat Transfer heat accumulation and
It prepares the method for steam, has the advantages that energy storage efficiency is high, good in economic efficiency, energy-conserving and environment-protective.
A kind of paddy electricity steam boiler of Molten Salt Heat Transfer heat accumulation, it is characterised in that including electric heating energy-storage device, steam output dress
Put, low-temperature molten salt tank and heat transfer medium pipeline；
The electric heating energy-storage device includes electric heating element and high temperature melting salt cellar, and the electric heating element is opened in the paddy electricity period；
The heat transfer medium pipeline connection high temperature melting salt cellar, steam generator, preheater, low-temperature molten salt tank and heat transfer medium
The direction recycle stream of high temperature melting salt cellar can be arrived again according to high temperature melting salt cellar, steam generator, preheater, low-temperature molten salt tank wherein
It is dynamic；
Heat-retaining mass in heat transfer medium and the high temperature melting salt cellar is fused salt；
The steam output device includes the steam generator and preheater being sequentially connected by the heat transfer medium pipeline；
The preheater is entered back into after heat transfer medium first flows out through steam generator under use state, subsequently into low-temperature molten salt tank；Institute
Stating steam generator is used to absorb after the heat that the heat transfer medium is carried by the hot water heating being provided into vapor and exports；
The preheater is used to provide hot water to the steam generator；The heat of the preheater preheating hot water can derive from what is flowed through
Waste heat in heat transfer medium.
It is preferred that the electric heating element use electric tracing, the electric tracing is wound on the outside of the high temperature melting salt cellar.
It is preferred that the heat transfer medium flowed by circulating pump in heat transfer medium pipeline.
It is preferred that the preheater water inlet connection water treatment facilities.
It is preferred that the fused salt be quartz sand composite fused salt.
A kind of method for preparing steam, it is characterised in that entered using the paddy electricity steam boiler of following Molten Salt Heat Transfer heat accumulations to water
Row is heated and exported：
The boiler includes electric heating energy-storage device, steam output device, low-temperature molten salt tank and heat transfer medium pipeline；
The electric heating energy-storage device includes electric heating element and high temperature melting salt cellar, and the electric heating element is opened in the paddy electricity period；
The heat transfer medium pipeline connects high temperature melting salt cellar, steam generator, low-temperature molten salt tank and heat transfer medium can be at it
In arrive high temperature melting salt cellar again according to high temperature melting salt cellar, steam generator, preheater, low-temperature molten salt tank direction circulate；
Heat-retaining mass in heat transfer medium and the high temperature melting salt cellar is fused salt；
The steam output device includes the steam generator and preheater being sequentially connected by the heat transfer medium pipeline；
The preheater is entered back into after heat transfer medium first flows out through steam generator under use state, subsequently into low-temperature molten salt tank；Institute
Stating steam generator is used to absorb after the heat that the heat transfer medium is carried by the hot water heating being provided into vapor and exports；
The preheater is used to provide hot water to the steam generator；The heat of the preheater preheating hot water can derive from what is flowed through
Waste heat in heat transfer medium；
It the described method comprises the following steps：In the paddy electricity period, high temperature melting salt cellar, a part of heat are heated by electric heating element
Heat heat transfer medium fused salt and heat transfer medium fused salt enters steam output device by heat transfer medium pipeline and is used to heat generation steaming
Vapour, the fused salt that another part heat is stored by high temperature melting salt cellar, which absorbs, to be stored；Heat transfer medium after release heat flows to described low
In temperature molten salt tank；After the paddy electricity period, electric heating element is disconnected, the heat stored by electric heating energy-storage device can be used to heat biography
Thermal medium, heat transfer medium enters steam generator and produces steam.
It is preferred that the electric heating element use electric tracing, the electric tracing is wound on the outside of the electric heating energy-storage device.
It is preferred that the heat transfer medium flowed by circulating pump in heat transfer medium pipeline.
It is preferred that the preheater water inlet connection water treatment facilities.
It is preferred that the fused salt be quartz sand composite fused salt.
The technology of the present invention effect：
The present invention can heat electric heating energy-storage device, use electric tracing heating preferably in the paddy electricity period by electric heating element
Fused salt, a part of heat heat transfer medium fused salt and heat transfer medium fused salt enter steam output device by heat transfer medium pipeline
Steam is produced for heating, the fused salt that another part heat is stored by high temperature melting salt cellar, which absorbs, to be stored.Discharge the biography after heat energy
Thermal medium can enter low-temperature molten salt tank storage, and return to electric heating energy-storage device under the power of circulating pump and start next circulation.
After the paddy electricity period has crossed, electric heating element is disconnected, the heat stored by energy storage device can be used to heat heat transfer medium, be stored up
The heat transfer medium of energy fused salt heating enters steam generator and produces steam.
The energy-accumulating medium and heat transfer medium are preferred to use quartz sand composite fused salt, preferred stone in the special present invention
Sand composite fused salt, which is selected from number of patent application 201310732738.2,201310040070.5 and 201310040909.5, to be remembered
The quartz sand composite fused salt of load.Its temperature in use is high, and efficiency high, cost is low.
The low-temperature molten salt tank can be played voltage stabilizing and unloaded while heat transfer medium fused salt is stored with buffer system pressure oscillation
The effect of lotus, in system during heat transfer medium fused salt slight change, can guarantee that the pressure stability of system so that pump will not be because of pressure
Change and frequently open, improve system security and equipment service life.
The preheater water inlet is connected with water treatment facilities, can carry out the operation such as deoxygenation, desalination, it is ensured that feed water quality,
Make the pipeline and equipment of boiler flow passage component and heat-exchange system from corrosion, increase the service life.
One aspect of the present invention make use of cheap paddy electricity to heat and used in the peak electric time, good in economic efficiency, energy-conserving and environment-protective,
On the other hand using the heat transfer of fused salt heat accumulation, fused salt temperature in use is high, energy storage efficiency is high, and heat accumulation ensures the paddy electricity week in 24 hours
The heating load heating that sustainable utilization paddy electricity is provided in phase produces steam.
Brief description of the drawings
Fig. 1 is the paddy electricity steam boiler structural representation of the Molten Salt Heat Transfer heat accumulation of the present invention.
Each label lists as follows in figure：
1- electric tracings；2- high temperature melting salt cellars；3- low-temperature molten salt tanks；4- steam generators；5- water inlets；6- goes out steam port；
7- heat transfer medium pipelines；8- circulating pumps；9- water treatment facilities；10- preheaters.
Embodiment
In order to preferably explain the present invention, the present invention is further explained with reference to embodiment.
The paddy electricity steam boiler of the Molten Salt Heat Transfer heat accumulation of the present embodiment, including it is electric heating energy-storage device, steam output device, low
Temperature molten salt tank 3 and heat transfer medium pipeline 7.The electric heating energy-storage device is the high temperature melting salt cellar 2 that outside is wound with electric tracing 1, institute
Stating steam output device includes steam generator 4 and preheater 10.High temperature melting salt cellar 2 and the inside of low-temperature molten salt tank 3 and heat transfer are situated between
Matter pipeline 7 is built with the institute in number of patent application 201310732738.2,201310040070.5 or 201310040909.5
The quartz sand composite fused salt of record is respectively as heat-retaining mass and heat transfer medium；The preheater 10 includes water inlet 5, described to steam
Vapour generator 4 includes steam port 6；The heat transfer medium pipeline 7 is sequentially communicated high temperature melting salt cellar 2, steam generator 4, preheating
Device and low-temperature molten salt tank 3, can by be arranged on the circulating pump 8 of heat transfer medium pipeline 7 high temperature melting salt cellar 2, low-temperature molten salt tank 3,
The direction of arrow flows along along Fig. 1 between preheater 10 and steam generator 4.Water inlet 5 is connected with water treatment facilities 9, can carry out
Deoxygenation, desalination etc. are operated.
The present embodiment heats high temperature melting salt cellar 2 in the paddy electricity period by electric tracing 1, and a part of heat is molten with heat transfer medium
Salt enters steam generator 4 by heat transfer pipe 7 and is used to heat generation steam, and another part heat is absorbed by energy storage molten salt to be store
Deposit, waste heat can in preheater 10 heat hot water be supplied to steam generator 4 or directly hot-water supply use.Heat exchange it
Fused salt afterwards can enter low-temperature molten salt tank 3 and further store, and return to electric heating energy-storage device under the power of circulating pump.In paddy electricity
After period has crossed, electric tracing 1 is disconnected, the heat stored by energy storage device can be used to heat heat transfer medium, and heat transfer medium enters
Entering steam generator 4 can continue to produce steam.
On the one hand the present embodiment make use of cheap paddy electricity to heat and used in the peak electric time, so as to realize economic benefit
The good, effect of energy-conserving and environment-protective, on the other hand using the heat transfer of quartz sand composite fused salt heat accumulation, temperature in use is high, energy storage efficiency is high, heat
Amount is not wasted, and heat accumulation ensures that the heat that sustainable utilization paddy electricity is provided in paddy electricity cycle in 24 hours produces steam.
Embodiment described above can make those skilled in the art be more fully understood the present invention, but not to appoint
Where formula limits the scope of protection of present invention, and all do not depart from the technical scheme of the spirit and scope of this patent and its changed
Enter, such as other Electric heatings, transmission medium pipeline sets valve of various adjustment flows etc., etc. condition, as long as meeting this
The spirit of invention, it is encompassed by among the protection domain of this patent.
Claims (10)
1. a kind of paddy electricity steam boiler of Molten Salt Heat Transfer heat accumulation, it is characterised in that including electric heating energy-storage device, steam output device,
Low-temperature molten salt tank and heat transfer medium pipeline；
The electric heating energy-storage device includes electric heating element and high temperature melting salt cellar, and the electric heating element is opened in the paddy electricity period；
The heat transfer medium pipeline connection high temperature melting salt cellar, steam generator, low-temperature molten salt tank and heat transfer medium can be pressed wherein
The direction for arriving high temperature melting salt cellar again according to high temperature melting salt cellar, steam generator, low-temperature molten salt tank is circulated；
Heat-retaining mass in heat transfer medium and the high temperature melting salt cellar is fused salt；
The steam output device includes the steam generator and preheater being sequentially connected by the heat transfer medium pipeline；Use
The preheater is entered back into after heat transfer medium first flows out through steam generator under state, subsequently into low-temperature molten salt tank；It is described to steam
Vapour generator is used to absorb after the heat that the heat transfer medium is carried by the hot water heating being provided into vapor and exported；It is described
Preheater is used to provide hot water to the steam generator；The heat of the preheater preheating hot water can be from the heat transfer flowed through
Waste heat in medium；
The paddy electricity steam boiler heat that sustainable utilization paddy electricity is provided in the paddy electricity cycle in 24 hours produces steam,
In the paddy electricity period, high temperature melting salt cellar is heated by electric heating element, a part of heat is absorbed by fused salt to be stored, the production of another part heat
Raw steam, in the non-paddy electricity period, disconnects electric heating element, the heat fused salt stored by energy storage device, fused salt enters steam
Generator produces steam.
2. boiler according to claim 1, it is characterised in that the electric heating element uses electric tracing, the electric tracing winding
On the outside of the high temperature melting salt cellar.
3. boiler according to claim 1, it is characterised in that the heat transfer medium is by circulating pump in heat transfer medium pipeline
Interior flowing.
4. boiler according to claim 1, it is characterised in that the water inlet connection water treatment facilities of the preheater.
5. according to any described boilers of claim 1-4, it is characterised in that the fused salt is quartz sand composite fused salt.
6. a kind of method for preparing steam, it is characterised in that carried out using the paddy electricity steam boiler of following Molten Salt Heat Transfer heat accumulations to water
Heat and export：
The boiler includes electric heating energy-storage device, steam output device, low-temperature molten salt tank and heat transfer medium pipeline；
The electric heating energy-storage device includes electric heating element and high temperature melting salt cellar, and the electric heating element is opened in the paddy electricity period；
The heat transfer medium pipeline connects high temperature melting salt cellar, steam output device, low-temperature molten salt tank and heat transfer medium can be wherein
The direction for arriving high temperature melting salt cellar again according to high temperature melting salt cellar, steam generator, preheater, low-temperature molten salt tank is circulated；
Heat-retaining mass in heat transfer medium and the high temperature melting salt cellar is fused salt；
The steam output device includes the steam generator and preheater being sequentially connected by the heat transfer medium pipeline；Use
The preheater is entered back into after heat transfer medium first flows out through steam generator under state, subsequently into low-temperature molten salt tank；It is described to steam
Vapour generator is used to absorb after the heat that the heat transfer medium is carried by the hot water heating being provided into vapor and exported；It is described
Preheater is used to provide hot water to the steam generator；The heat of the preheater preheating hot water can be from the biography flowed through
Waste heat in thermal medium；
It the described method comprises the following steps：In the paddy electricity period, high temperature melting salt cellar, a part of heat are heated by electric heating element
Heat transfer medium fused salt and heat transfer medium fused salt, which enter steam output device by heat transfer medium pipeline and be used to heat, produces steam, separately
The fused salt that a part of heat is stored by high temperature melting salt cellar, which absorbs, to be stored；Heat transfer medium after release heat flows to the low-temperature molten salt
In tank；After the paddy electricity period, electric heating element is disconnected, the heat stored by electric heating energy-storage device can be used to heat heat transfer Jie
Matter, heat transfer medium enters steam output device and produces steam.
7. method according to claim 6, it is characterised in that the electric heating element uses electric tracing, the electric tracing winding
On the outside of the electric heating energy-storage device.
8. method according to claim 6, it is characterised in that the heat transfer medium is by circulating pump in heat transfer medium pipeline
Interior flowing.
9. method according to claim 6, it is characterised in that the water inlet connection water treatment facilities of the preheater.
10. according to any described methods of claim 6-9, it is characterised in that the fused salt is quartz sand composite fused salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410462771.2A CN104279545B (en) | 2014-05-23 | 2014-09-12 | A kind of paddy electricity steam boiler of Molten Salt Heat Transfer heat accumulation and its method for preparing steam |
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| CN201410218392 | 2014-05-23 | ||
| CN201410218392.9 | 2014-05-23 | ||
| CN2014102183929 | 2014-05-23 | ||
| CN201410462771.2A CN104279545B (en) | 2014-05-23 | 2014-09-12 | A kind of paddy electricity steam boiler of Molten Salt Heat Transfer heat accumulation and its method for preparing steam |
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| CN104279545A CN104279545A (en) | 2015-01-14 |
| CN104279545B true CN104279545B (en) | 2017-09-12 |
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| CN201420522848.6U Active CN204187603U (en) | 2014-05-23 | 2014-09-12 | A kind of paddy electricity superheated steam boiler of Molten Salt Heat Transfer heat accumulation |
| CN201410461502.4A Pending CN104266173A (en) | 2014-05-23 | 2014-09-12 | Molten salt heat transfer and storage trough electricity superheated steam boiler and superheated steam preparation method |
| CN201410461925.6A Pending CN104266356A (en) | 2014-05-23 | 2014-09-12 | Molten salt heat transfer and storage trough electricity hot water boiler and hot water preparation method |
| CN201420525738.5U Active CN204187831U (en) | 2014-05-23 | 2014-09-12 | A kind of paddy electric hot water of Molten Salt Heat Transfer heat accumulation |
| CN201410462771.2A Active CN104279545B (en) | 2014-05-23 | 2014-09-12 | A kind of paddy electricity steam boiler of Molten Salt Heat Transfer heat accumulation and its method for preparing steam |
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| CN201420522848.6U Active CN204187603U (en) | 2014-05-23 | 2014-09-12 | A kind of paddy electricity superheated steam boiler of Molten Salt Heat Transfer heat accumulation |
| CN201410461502.4A Pending CN104266173A (en) | 2014-05-23 | 2014-09-12 | Molten salt heat transfer and storage trough electricity superheated steam boiler and superheated steam preparation method |
| CN201410461925.6A Pending CN104266356A (en) | 2014-05-23 | 2014-09-12 | Molten salt heat transfer and storage trough electricity hot water boiler and hot water preparation method |
| CN201420525738.5U Active CN204187831U (en) | 2014-05-23 | 2014-09-12 | A kind of paddy electric hot water of Molten Salt Heat Transfer heat accumulation |
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| CN204187603U (en) * | 2014-05-23 | 2015-03-04 | 深圳市爱能森设备技术有限公司 | A kind of paddy electricity superheated steam boiler of Molten Salt Heat Transfer heat accumulation |
| CN107764119B (en) * | 2017-11-22 | 2024-04-05 | 江苏中科智储科技有限公司 | Heat storage device for heat exchange by contact between gas and molten salt |
| CN108377852A (en) * | 2018-05-03 | 2018-08-10 | 湖北裕山菌业有限公司 | A kind of heat accumulating type edible fungus stick disinfection system |
| CN109631644A (en) * | 2018-12-03 | 2019-04-16 | 北京工业大学 | Runner preheating device between a kind of energy-saving narrow deep space under suitable adverse circumstances |
| CN111172367A (en) * | 2020-03-20 | 2020-05-19 | 洛阳Lyc轴承有限公司 | Salt bath heat preservation and energy saving method for railway bearing salt quenching line |
| CN113237043A (en) * | 2021-05-18 | 2021-08-10 | 中煤科工集团重庆研究院有限公司 | Device for transforming thermal power station by utilizing fused salt energy storage |
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| CN103277272A (en) * | 2013-05-08 | 2013-09-04 | 哈尔滨工业大学 | Wind energy and groove-type solar all-in-one power generating system |
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- 2014-09-12 CN CN201420522848.6U patent/CN204187603U/en active Active
- 2014-09-12 CN CN201410461502.4A patent/CN104266173A/en active Pending
- 2014-09-12 CN CN201410461925.6A patent/CN104266356A/en active Pending
- 2014-09-12 CN CN201420525738.5U patent/CN204187831U/en active Active
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| CN104266173A (en) | 2015-01-07 |
| CN204187831U (en) | 2015-03-04 |
| CN204187603U (en) | 2015-03-04 |
| CN104279545A (en) | 2015-01-14 |
| CN104266356A (en) | 2015-01-07 |
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