CN102252416A - Large-scale wind power generator hot water energy storage method and special equipment - Google Patents

Abstract

The invention discloses a large-scale wind power generator hot water energy storage method and special equipment, and belongs to the technical field of wind power. In the invention, a mass of unstable wind power is utilized to carry out interrupted and variable power heating on the fresh water in a heat storage body, thus the electric energy is converted into hot water at 40-100 DEG C; and a heat preservation technology is used for carrying out heat preservation on the hot water for dozens of hours to one hundred hours, and the hot water stored in the heat storage body is subjected to stable and controllable output utilization during the heat preservation process. The large-scale wind power generator hot water energy storage method provided by the invention is simple and practicable, is safe and reliable in use, is environmentally-friendly and harmless and ensures no pollution, thus achieving typical green energy; the high-temperature heat energy can be supplied remotely to replace coal, petroleum, natural gas and other traditional energy so as to be applied to all aspects of production and life; the fresh water in the special heat storage body is fresh water from any river and lake, and is rich in source; and the heat storage capacity of the heat storage body is high, and the heat storage boy can be recycled, and has the advantages that the cost is lower, the processing is easier and the like.

Description

A kind of large-scale wind driven generator hot water energy storage method and special equipment

Technical field

The invention belongs to the wind power technology field, be specially a kind of large-scale wind driven generator hot water energy storage method and special equipment.

Background technology

Present domestic wind-powered electricity generation installation only is 2% of the total installed capacity of electricity, according to incompletely statistics, wind is abandoned (owing to electrical network is admitted scarce capacity, the wind energy turbine set completion time of project does not match and reason such as wind-powered electricity generation instability can not allow the wind-powered electricity generation online in the whole nation in 2010, can only be with the blower fan generation outage) generated energy surpasses 6,000,000,000 kilowatt hours, a lot of regional wind-powered electricity generations face the difficult problem that is incorporated into the power networks and dissolves, wind-powered electricity generation a large amount of waste of having to.

Present Large-scale Wind Turbines without exception all be to adopt " directly being incorporated into the power networks on a large scale " mode, it is reported, the largest wind energy turbine set installation total capacity (general power) of China arrives the generated energy scale in " land Three Gorges " greatly, reached ten million multikilowatt, and so the wind-powered electricity generation of scale has been planned 7 wind energy turbine set, so big electric power energy is suddenly big or suddenly small, cut in and out, state with " unstable, non-adjustable " is connected to the grid again, and this is that any electrical network all can not bear and dissolve.

Aspect " large-scale wind driven generator is non-to be incorporated into the power networks ", the someone proposes " wind-powered electricity generation hydrogen manufacturing ", promptly utilize a large amount of wind-powered electricity generation electric power that water decomposition is hydrogen and oxygen, store then and utilize, (yet as long as contain the hydrogen of 5-75% in the air is exactly damp to the very easily explosivity of hydrogen, moreover the detonation velocity of hydrogen is exceedingly fast, very easily ignited by small spark), its safety problem can't thoroughly solve always, thereby has influenced promoting the use of of hydrogen energy source.

In addition a large amount of wind-force electric power is carried out desalinization or utilizes it to carry out metal smelts such as aluminium metallurgy, significant limitation is also arranged, all can not carry out making full use of of wind-powered electricity generation electric energy, be difficult to handle at any time the wind-powered electricity generation electric power of enormous amount especially, its cost, equipment, input are all very high, some specific occasions, wind energy turbine set as Xinjiang, Gansu, Inner Mongol and other places, be difficult to obtain a large amount of water sources that are used for hydrogen manufacturing or desalination, also do not possess the condition of smelting, various reasons has restricted the development of this respect.

In addition, as the energy storage of drawing water, take the Liujiaxia Hydropower Station, the Yellow River for instance, at first need a large amount of water sources, the Liujia Gorge utilizes water source, whole piece the Yellow River exactly, needs very high landform drop (147 meters of drops), only 1,300,000 kilowatts of the installed capacitys of Liujiaxia Hydropower Station, if will " energy storage of drawing water of the wind-powered electricity generation of ten million kilowatt of capacity so just needs to build the energy storage reservoir that draws water of about 10 Liujiaxia Hydropower Station scales, is difficult to carry out.

Compressed-air energy storage has a most realistic problem, to emit a large amount of heat energy when being exactly the air compression, need absorb a large amount of heat energy when utilization is compressed in any machine operation of air push of high pressure conditions, " heat energy distributes problem and heat absorption problem " of compressed-air energy storage can't solve.

Batteries to store energy: " lead-acid battery; lithium battery; vanadium cell; sodium-sulphur battery " etc., the energy storage price height of this kind mode, a lead-acid battery of 1 kilowatt of capacity (12 volts of voltage 100 ampere-hour batteries) needs 500 yuan, 3 years life-spans, 1000 kilowatts wind power generating set need be joined 1000, need 500,000 yuan, can only use and to change in 3 years, in use also want the skilled worker to carry out frequent management and maintenance, the battery that lead-acid battery is still the most cheap, the 5-8 that other various novel storage battery prices are lead-acid batteries doubly, also has a large amount of lead, lithium, vanadium, sodium, sulphur etc. all are heavy metals, very big to environmental injury in making and using, so in fact can't use aspect the wind-powered electricity generation energy storage.

How existing already installed wind power generating set institute electricity is utilized fully efficiently, should propose better solution.

Summary of the invention

At the above-mentioned problems in the prior art, the objective of the invention is to design the technical scheme that a kind of large-scale wind driven generator hot water energy storage method and special equipment are provided, a large amount of unsettled wind-powered electricity generations are converted into hot water rationally to be utilized in thermal store, safe and reliable, environmentally friendly, pollution-free, be typical green energy resource.

Described a kind of large-scale wind driven generator hot water energy storage method, it is characterized in that: utilize a large amount of unsettled wind-powered electricity generations that the fresh water that is provided with in the thermal store is interrupted and become power and heat, its electric energy is converted into temperature at 40-100 ℃ hot water, utilize heat preservation technology that hot water is carried out the insulation in the time in tens to 100 hour, the hot water in will being stored in the thermal store between soak stablizes, controlled output utilization.

Described a kind of large-scale wind driven generator hot water energy storage special equipment; it is characterized in that described hot water energy storage special equipment is a thermal store; described thermal store connects and composes with reflective membrane protective layer, rock wool heat-preservation layer, thermal-insulation baffle plate, water tank from outside to inside; fresh water is set in the water tank, the withstand voltage stainless-steel pipe and the electric heating equipment of one group of hollow is set in the fresh water.

Described a kind of large-scale wind driven generator hot water energy storage special equipment, the volume that it is characterized in that described thermal store cavity is the 1-100 cubic meter, preferred 10-80 cubic meter, more preferably 20-60 cubic meter; Air-vent is set on the thermal store.

Described a kind of large-scale wind driven generator hot water energy storage special equipment is characterized in that described electric heating equipment is made of one group of electrothermal tube, electric furnace heating wire or electrical bar heating.

Described a kind of large-scale wind driven generator hot water energy storage special equipment, the thickness that it is characterized in that described water tank is 0.3-3 centimetre, preferred 0.5-1.5 centimetre.

Described a kind of large-scale wind driven generator hot water energy storage special equipment is characterized in that described thermal-insulation baffle plate is an evacuated panel, and its thickness is 0.5-30 centimetre, preferred 1-15 centimetre.

Described a kind of large-scale wind driven generator hot water energy storage special equipment, the thickness that it is characterized in that described rock wool heat-preservation layer is 4-20 centimetre, preferred 5-15 centimetre.

Described a kind of large-scale wind driven generator hot water energy storage special equipment, the thickness that it is characterized in that described reflective membrane protective layer is 0.01-0.08 centimetre, preferred 0.02-0.04 centimetre.

Above-mentioned a kind of large-scale wind driven generator hot water energy storage method, a large amount of unsettled wind-powered electricity generations are converted into hot water rationally to be utilized in thermal store, simple, safe and reliable, environmentally friendly, pollution-free, it is typical green energy resource, can supply a large amount of high temperature heat at a distance,, be applied in the various aspects of production, life to substitute traditional energies such as coal, oil, natural gas.Fresh water in the special-purpose thermal store is the fresh water in any rivers,lakes and seas, and the source is abundant; And the quantity of heat storage of this thermal store is big, and reciprocal use capable of circulation also has advantages such as cost is cheaper, processing is easier.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Among the figure: the withstand voltage stainless-steel pipe of 1-thermal store, 2-reflective membrane protective layer, 3-rock wool heat-preservation layer, 4-thermal-insulation baffle plate, 5-water tank, 6-firing equipment, 7-fresh water, 8-hollow.

The specific embodiment

The invention will be further described below in conjunction with Figure of description.

Large-scale wind driven generator hot water energy storage method is: utilize a large amount of unsettled wind-powered electricity generations the fresh water 7 that is provided with in the thermal store 1 to be interrupted and to become power and heat, its electric energy is converted into temperature at 40-100 ℃ hot water, (the heat accumulation water body of every cubic metre of volume is under the good condition of insulation to utilize heat preservation technology that hot water is carried out the insulation in the time in tens to 100 hour, only lowered the temperature 3-5 ℃ through 24 hours during from 100 ℃, meet the second law of thermodynamics), hot water in will being stored in the thermal store 1 between soak is stablized, controlled output utilization can be transported to far place fully during this period and use.

Described hot water energy storage special equipment is a thermal store 1; described thermal store 1 connects and composes with reflective membrane protective layer 2, rock wool heat-preservation layer 3, thermal-insulation baffle plate 4, water tank 5 from outside to inside; fresh water 7 is set in the water tank 5, the withstand voltage stainless-steel pipe 8 and the electric heating equipment 6 of one group of hollow is set in the fresh water 7.The volume of described thermal store 1 cavity is the 1-100 cubic meter, preferred 10-80 cubic meter, more preferably 20-60 cubic meter; On the thermal store 1 air-vent is set.Described electric heating equipment 6 is made of one group of electrothermal tube, electric furnace heating wire or electrical bar heating.The thickness of described water tank 5 is 0.5-4 centimetre, preferred 1-1.5 centimetre; The thickness of described thermal-insulation baffle plate 4 is 0.5-30 centimetre, preferred 1-20 centimetre; The thickness of described rock wool heat-preservation layer 3 is 4-30 centimetre, preferred 5-20 centimetre; The thickness of described reflective membrane protective layer 2 is 0.01-0.08 centimetre, preferred 0.02-0.04 centimetre.

Described thermal-insulation baffle plate 4 uses corrosion resistant plate to be welded, and cuts off and minimizing " convection current of heat energy and conduction " loss significantly anticorrosion; Described rock wool heat-preservation layer 3 and reflective membrane protective layer 2 use rock wool and reflective membrane to make; loss blocking-up and minimizing with " thermal energy conduction and radiation "; reach the purpose that heat energy does not does not scatter and disappear substantially, " heat energy dissipation is reduced to minimum " (meeting the second law of thermodynamics and zero principle) in other words conj.or perhaps.Described thermal-insulation baffle plate 4 is the flat type in side or circle (containing ellipse) containers of steel being made a hollow, space thickness in the middle of the steel plate is 2-30 centimetre, square and the flat type of rectangle thermal store user " thermal-insulation baffle plate ", bulge uses circular " thermal-insulation baffle plate ", elliptical vessel uses oval thermal-insulation baffle plate, deflates, and makes it to become vacuum state and gets final product, this thermal-insulation baffle plate 4 is based upon on the conventional vacuum technical foundation, has high-efficiency insulated effect.

Described thermal store 1 container profile adopts TEU (Twenty-foot Equivalent Unit) and the standard automobile liquid transfer cask size design or the transformation of the way, can be according to the existing profile of container mode and automobile jar type container, be installed on 1-60 ton agricultural vehicle and the bogie, as: " the thermal store case " of 1-3 cubic meter volume can be by common agricultural vehicle, light-duty goods vehicle roping, the 5-10 cubic meter can use medium-sized special-purpose bogie roping, the 11-50 ton can use the roping of van container bogie, promptly conveniently assemble and disassemble conveniently transports again and uses.

The heat accumulating that the present invention uses is fresh water, in a large number and extensively distributes on earth, and be any fresh water in the natural water body.

Specific heat of water holds (being caloric receptivity again): 4.216kJ/kg ℃ (pronounce (kilojoule. kilogram. degree centigrade) referring to " the 20th page of inorganic chemical industry handbook, table 1.10.1.

The basic characteristics of water, be exactly can be repeatedly heat absorption, heat radiation, at 40-100 ℃ good thermal storage performance can be arranged simultaneously, the water body that these quantity of heat storage are big can be used as carrier of heat energy, can carry out repeatedly heat absorption, heat radiation.

The heating " heat accumulation water body " if the time be no more than 100 ℃, just can not seethe with excitement more can not blast, burning etc., be ultra-safe, in 40-100 ℃ heating process, only discharge some a spot of steam (be no more than cumulative volume 5%), what absorb during heat release is little air, no matter all under normal pressure, carry out (container does not have pressure, and is consistent with the atmospheric pressure of locality) so in use safe especially, environmental protection during in heating or during heat release.

The quantity of heat storage of fresh water is big: the proportion of water is 1 when 1 cubic metre of volume, promptly the weight of 1 cubic metre of volume is 1000 kilograms (1 tons), it is 4.216MJ that 1 ton of specific heat of water holds, the temperature difference is 80 ℃ when 20 ℃ are heated to 100 ℃, by following column count as can be known, can store the 4.216MJ heat be equivalent to 93.76(kilowatt/time) (every cubic metre of volume heat accumulation energy)

The quantity of heat storage computing formula is as follows:

Computing formula Q=cm △ t

Q: expression heat; C: expression specific heat capacity; M: expression quality; △ t represents the temperature that changes

Q suction=cm (t-t0)

The heat c that Q inhales the expression absorption represents that specific heat capacity m represents that quality t represents that last temperature t0 represents initial temperature

Q is put=cm (t0-t)

Note: Q is put expression liberated heat c and is represented that specific heat capacity m represents that quality t represents that last temperature t0 represents initial temperature

Calculate:

Heat accumulation water body specific heat capacity data and temperature difference substitution following formula with 1 cubic metre of volume:

Every kilogram caloric receptivity (specific heat capacity) is 4.216kJ/kg ℃, and specific heat capacity per ton is 4.216MJ/ ton .K

Q=cm△t

(when temperature range is 20-100 ℃, the heat energy that can store) in theory

Q=(4.216MJ/ ton * Δ t)=4.216MJ*1 (ton) * k=4216MJ.k

1 ton water body caloric receptivity=4.216MJ* Δ t(temperature difference)

Caloric receptivity multiply by temperature difference=4.216MJ*80 ℃ (100 ℃-20 ℃, from 20 ℃ of temperature difference that are elevated to 100 ℃)

=337.8MJ*0.278 (1MJ heat energy equal 0.278 kilowatt/time)

=93.76(kilowatt/time) (every cubic metre of volume heat accumulation energy)

Heat accumulation water body per ton from 20 ℃ be heated to 100 ℃ of heats that can store be 93.76 kilowatts/time (degree)

Utilize wind-powered electricity generation electric energy when heating, also can be regarded as and a large amount of electric power is converted into heat energy and is stored in this type of material, during use as long as with these heat energy outputs and regulate and control to our needed temperature.(meeting the first law of thermodynamics)

The mode of heating of thermal store 1 and characteristics:

1, electrothermal tube (electrical bar) mode of heating:

Automatically close when regulating above heating-up temperature to 100 ℃ by temp control switch, it is simple especially similarly to be that the family expenses boiler is equally controlled.Most of 1000 kilowatts of output voltages that reach more powerful wind-driven generator all are output ACs, frequency is that 50 hertz, voltage are 690V, can change that voltage method reduces and change voltage or use the three-phase alternating current electrically heated rod (electric heating tube) of 380V to adopt series system by common transformer, reach and meet " electric heating tube " " electrical bar " that presets in the heat accumulation water body and heat needed voltage.Best mode is the auxiliary products of entrusting the production 690V of manufacturer of electric heating tube, directly uses.

2, because " heat accumulation water body " is to be placed on a sealing (ventilative aperture to be arranged, only open when heating and during heat release, preserve, close in the transportation) and high-efficiency insulated container in, the heat of input can also constantly raise in accumulation gradually, because there is good heat-insulation layer to keep temperature, overwhelming majority heat energy can not scatter and disappear, can high effective heat-storage at when heating thermal loss very little (following the first law of thermodynamics), most heat energy can both be stored with " becoming the power heating " (these 2 unstable situations of generating that meet large-scale wind driven generator especially) even if be interrupted heating.

The utilization of heat energy in the thermal store:

1, in this thermal store, can preset hollow and withstand voltage stainless-steel pipe, end at this steel pipe when taking heat energy utilizes air blast to send into cold air, the hot blast that can obtain 40-100 ℃ when cold air flows through the high-temperature heat-storage section of this steel pipe (is regulated the air intlet valve voluntarily, mix with cold air and can reach needed " warm braw ") without thermal store, " hot air source " that the hot blast that directly will regulate rated temperature is sent into central air-conditioning located or " warm-air pipe " porch of the system of central heating, just can excise the coal heating in the original system, electrical heating, links such as natural gas heating (and these heating systems are to expend the energy most) have been saved coal and electric power greatly.

2, adopt " hydro-thermal energy heat exchanger " mode to be connected with water-heating system, carry out the heat energy displacement, house heating during for winter needs, general water-heating system, leaving water temperature is 70 ℃, and return water temperature is 40 ℃, can directly supply heating hot water after being linked into water-heating system by " hydro-thermal can heat exchanger ", alternative coal adds the hot water mode, can save a large amount of coal.

3, can using gases/gas; Gas/liquid; The heat exchanger of various ways such as liquid/liquid uses the occasion that a large amount of heat energy is replaced needs, and method is flexible and changeable, but all is ripe " known technology ", does not have technical bottleneck.

4, can utilize these a large amount of heat energy to carry out " low-temperature electricity-generating " pattern by heat exchanger, just can utilize 60-100 ℃ heat energy to generate electricity as a lot " cogeneration unit " " geothermal power generation unit " patterns, because this heat energy is cheap and is inexhaustible, so utilize these heat energy to carry out " generating of low-temperature electricity-generating pattern " and be incorporated into the power networks by this way, not only electrical network is welcome, and is environmental protection, the cleanest, the most permanent electric energy.

5, a kind of " Stirling engine " efficiently can utilize these heat energy to carry out heat energy and efficiently be converted to mechanical energy, pass through the generator for electricity generation of these mechanical energies machinery traditional modes again, this is adjustable, the controlled electric energy that can regulate and control output, and it is that electrical network is extremely welcome that this electric energy is incorporated into the power networks.

Conversion by mechanical energy can also produce mechanical energy and drag the various mobile vehicles as automobile, train, steamer, tractor etc., and is significant.

The specific embodiment one of thermal store 1:

0.001 the heat accumulation water body of cubic meter (1 cubic decimeter, weight 1 kilogram) volume is heated to 100 ℃ of power heat energy that can store 1.1 degree electricity from 40 ℃.Adopt thermal store 1 of the present invention to be incubated, level (because this embodiment of 10 ℃ can accomplish only to lower the temperature in 24 hours, volume is little, area of dissipation is relatively large, follow surface area becomes 3 powers with volume relation, promptly surface area increases and is twice, so that volume increases 8 times reason radiating rate is very fast), when 100 ℃ are reduced to 60 ℃, can preserve 4 day time, prove this technology heat preservation effect for a long time.

According to the checking situation of above embodiment, can illustrate that below by calculating in model be pack into the thermal storage performance of " heat accumulation water body " of 25 cubic metres of volumes of the TEU (Twenty-foot Equivalent Unit) of 20G to thermal store insulation in the present technique.

The specific embodiment two of thermal store 1:

Model is that the TEU (Twenty-foot Equivalent Unit) total measurement (volume) of 20G is 33.3 cubic metres, actual 25 cubic metres the thermal store of packing into, and other 8.3 cubic metres volume is the container of thermal store, heat-insulation layer, anti-thermosphere, overcoat etc.As thermal store heating with 25 cubic metres of volumes, when 20 ℃ are heated to 100 ℃, according to every cubic metre of energy storage density 93.76(kilowatt/time) (as preceding narration), can store total amount of heat is the heat energy of 2344 degree electrical power, approximately consume 3000 degree wind-powered electricity generations (80% efficiency calculation), can receive the wind-powered electricity generation of the specified standards that 1 1000 kilowatts wind power generating set sent in 3 hours, and the mode that changes into heat energy stores.

Large-scale Wind Turbines of the present invention is carried out the performance analysis of hot water energy storage:

1, one 1000 kilowatts wind power generating set one day 24 hours according to the full power generating calculate can generate electricity 24000 kilowatts/time (degree), can fill it up with eight so heat accumulation water body casees of size, can heat energy storage 18752 kilowatts/time (degree) the electric energy heat, the efficient 0.78 that is converted to heat energy according to electric energy is calculated, 24000 kilowatts of actual consumptions/electric weight.

18752 kilowatts/time (thermal store store electrical heat energy) divided by 8.14 kilowatts/time (per kilogram mark coal power calorific value)=2304 kilograms of mark coals, be equivalent to the heat energy of 2.3 tons of mark coals, be equivalent to 3.2 tons of high-quality anthracites.

Annotate: China is according to " coal equivalent " unified calculation calorific value, and the calorific value of per kilogram mark coal is 7000 kilocalories, equal again 8.14 kilowatts/time (see kilowatt-hour-joule-horsepower-hour-calorie unit conversion table).

2, the price of current high-quality anthracite is in 900-1000 unit (in March, 2011 price), if if so one 1000 kilowatts wind power generating set uses our invention technology to carry out the heat accumulation utilization every day, will the about 3000 yuan economic benefit of minimum generation, this is than can not enter electrical network, wind power generating set at idle no benefit state is as far apart as heaven and earth, one is the negative income state of " getting sun ", one is that " have wind that big income state is just arranged, the two is compared, and " excellent " " bad " is upright to be declared.

3, this kind heat energy is the heat energy that can directly use, the heat energy that also will be produced by boiler combustion heating unlike coal, coal wants loss a big chunk heat energy can't utilize (boiler and the equipment that do not have the thermal efficiency 100%) in the boiler combustion process of any model efficient, so use the actual effect of " wind-powered electricity generation heat energy " to be higher than the nominal calorific value (meeting the second law of thermodynamics) of coal greatly.

On Large-scale Wind Turbines, use the advantage and the characteristics of thermal store mode:

1, per 1 1000 kilowatts of wind power generating set can cooperate " heat storage water tank " of 25 cubic metres of volumes of 8-16 platform, in order to recycling, can also play the effect of the normal operation of the wind-driven generator that is highly advantageous to, because the energy of wind energy is the relation that is directly proportional with 3 powers of wind speed (wind speed increase be twice wind-force increase 8 times).

When wind speed is low, can give the heating of 4-8 platform storage tank, heat for when wind speed is high 8-16 platform thermal store simultaneously, effectively utilized fully the wind energy that is lower than rated wind speed or is higher than rated wind speed, improved Wind Power Utilization efficient greatly, because do not consider that voltage is surely unstable, active energy, reactive energy are up to standard, the power factor grade that is what the necessary condition that is incorporated into the power networks, be actually desirable " pure resistance circuit " heating mode, several times of the high efficiencies of generation so ratio is surfed the Net.

2; can also play the phenomenon that " power consumption braking " effect (very wide thermal storage performance can be high efficiency during the absorption strong wind energy) makes wind-driven generator no longer include " removal of load escape " to wind-driven generator (fault of the easiest generation " driving " when getting rid of big load) takes place; when also fundamentally having solved the super large wind speed; wind-driven generator is because of the action of unnatural wind speed protection mechanism; and get rid of " driving " phenomenon that big load causes suddenly; very easily cause the damage of wind-power electricity generation group in the case; not only fundamentally solved this difficult problem; more can simplify the structure of large-scale wind driven generator; reduce cost, that improves heat accumulation always utilizes benefit.

3, this kind heat energy is directly to be fed to the user directly to use, there is not the pollution of burning coal fully, especially unsettled wind-powered electricity generation is converted at any time the heat energy of the enormous amount that can store, can regulate and control, will for now a large amount of exist because the Large-scale Wind Turbines of big electrical network " abandoning wind, stall ", the mode and the chance that provide a high efficiency to exert oneself, make a lot of money are provided.

4, one 1000 kilowatts wind power generating set is according to taking in 3000 yuan of calculating conservative every day; be exactly 1,090,000 yuan every year; only calculate (in the light of actual conditions conversion) according to 1/2 generating dutation; 54.5 ten thousand yuan of incomes are also arranged every year; more estimable is that this kind heat energy is the green fully energy; from the aspect of energy-saving and emission-reduction, environmental protection, its society, environmental benefit are that common coal and other fossil energy are unrivaled, should vigorously promote the use.

Claims (8)

1. large-scale wind driven generator hot water energy storage method, it is characterized in that: utilize a large amount of unsettled wind-powered electricity generations the fresh water (7) that is provided with in the thermal store (1) to be interrupted and to become power and heat, its electric energy is converted into temperature at 40-100 ℃ hot water, utilize heat preservation technology that hot water is carried out the insulation in the time in tens to 100 hour, the hot water in will being stored in the thermal store (1) between soak stablizes, controlled output utilization.

2. a kind of large-scale wind driven generator hot water energy storage special equipment as claimed in claim 1; it is characterized in that described hot water energy storage special equipment is thermal store (1); described thermal store (1) uses reflective membrane protective layer (2), rock wool heat-preservation layer (3), thermal-insulation baffle plate (4), water tank (5) to connect and compose from outside to inside; fresh water (7) is set in the water tank (5), the withstand voltage stainless-steel pipe (8) and the electric heating equipment (6) of one group of hollow is set in the fresh water (7).

3. a kind of large-scale wind driven generator hot water energy storage special equipment as claimed in claim 1 is characterized in that the volume of described thermal store (1) cavity is the 1-100 cubic meter, preferred 10-80 cubic meter, more preferably 20-60 cubic meter; Thermal store is provided with air-vent on (1).

4. a kind of large-scale wind driven generator hot water energy storage special equipment as claimed in claim 1 is characterized in that described electric heating equipment (6) is made of one group of electrothermal tube, electric furnace heating wire or electrical bar heating.

5. a kind of large-scale wind driven generator hot water energy storage special equipment as claimed in claim 1, the thickness that it is characterized in that described water tank (5) is 0.3-3 centimetre, preferred 0.5-1.5 centimetre.

6. a kind of large-scale wind driven generator hot water energy storage special equipment as claimed in claim 1 is characterized in that described thermal-insulation baffle plate (4) is an evacuated panel, and its thickness is 0.5-30 centimetre, preferred 1-15 centimetre.

7. a kind of large-scale wind driven generator hot water energy storage special equipment as claimed in claim 1, the thickness that it is characterized in that described rock wool heat-preservation layer (3) is 4-20 centimetre, preferred 5-15 centimetre.

8. a kind of large-scale wind driven generator hot water energy storage special equipment as claimed in claim 1, the thickness that it is characterized in that described reflective membrane protective layer (2) is 0.01-0.08 centimetre, preferred 0.02-0.04 centimetre.

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