CN104034065B - Solar energy accumulation formula heat supply method and device thereof - Google Patents
Solar energy accumulation formula heat supply method and device thereof Download PDFInfo
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- CN104034065B CN104034065B CN201410324388.0A CN201410324388A CN104034065B CN 104034065 B CN104034065 B CN 104034065B CN 201410324388 A CN201410324388 A CN 201410324388A CN 104034065 B CN104034065 B CN 104034065B
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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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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
The open a kind of solar energy accumulation formula heat supply method of the present invention and device thereof, it uses solar heat collector, utilizing accumulation of energy device to carry out energy-storage type heat supply is using paddy electricity as heating source, carry out heating accumulation of energy to the accumulation of energy material of accumulation of energy device by corresponding heat transferring medium, again taking the heat energy of accumulation of energy material as carrying out heat supply for heat target, accumulation of energy material fused salt in accumulation of energy device is heated, fused salt is accumulation of energy source after absorbing heat, utilize accumulation of energy source for heat supply, the thermal source of heating and heating hot spring, and when accumulation of energy source is also not enough, then utilize the paddy electrically heated time that accumulation of energy material is carried out heat supply, so just formed between paddy electricity energy storage or accumulation of energy source, the heat supply method of the interactive adaptive self-equilibrating adjustment formed and system, sun power and paddy electric energy is made to obtain comprehensive utilization, improve the efficiency that it utilizes, structure is simple.
Description
Technical field:
The present invention relates to a kind of method of energy-storage type heat supply and device, particularly a kind of utilize the solar energy accumulation formula heat supply method and device thereof that sun power is thermal source��
Background technology:
Sun power, as most clean energy, is applied more and more widely. Along with the continuous minimizing of the petroleum resources energy, how sun power is fully utilized, it is the important topic of pendulum in national governments. There is regular hour property and uncontrollability due to sun power, therefore, how sun power is changed into heat, carry out heating, heat supply etc., people have paid continuous effort, and its technical scheme is different, how to improve efficiency of its comprehensive utilization etc., to solve the situation that sun power efficiency of conversion is low, further improves the comprehensive utilization to sun power.
Utilizing sun power or paddy electricity energy storage to carry out heat supply as thermal source, heating and heating thermal water etc., can effectively improve the comprehensive utilization ratio of sun power and paddy electricity. According to current hot spring GB, the water that earth's surface is flowed out naturally, hot spring just can be called more than 25 DEG C, and in fact the water of less than 30 DEG C is difficult to meet the needs of client. The hot spring of leaving water temperature(LWT) below 40 DEG C, all needs Heat artificially. Can reach at present natural leaving water temperature(LWT) more than 40 DEG C less than 20%, add that the temperature in thermal water course of conveying also can be lost, so a lot of hot spring must take the mode of second-heating. More commonly heat with the way insulation of ' heat exchanger ' now, carry out heat exchange with the water in big pipe to the thermal water in small tubes exactly and carry out heating, temperature keeping, be also exactly heat to the water in big pipe with boiler or electric energy.
On the other hand, city heat supply, heating also all to be heated by boiler and provided thermal source, and the waste of thermal resource is very big. When utilizing pure electric energy to carry out heat supply, heating as the energy, with common electric energy, too high for its electric cost heating enterprise, and how to improve the comprehensive utilization ratio of electric energy, again reduce the production cost of heating enterprise simultaneously. Utilize paddy electricity to be good selection as the energy of heating enterprise, that is to say at dead of night along with the minimizing of electric flux, electric energy is wasted owing to not using, therefore, how to make good use of paddy electricity to can much slower production cost heating enterprise, it is to increase the power consumption efficiency of paddy electricity, economizes on resources.
Owing to sun power has the ageing of heating, namely daytime weather fine, when sunlight is abundant, sun power is bigger and sufficient, but owing to not storing, therefore causes the deficiency of utilization. Sun power is not then had, or sun power is not enough in the evening or cloudy day. Therefore, how utilizing sun power fully, people find out a lot of method, as utilized fused salt sun power can be carried out energy storage. Chinese Patent Application No. is 2008103055797 " utilizing the solar energy heat accumulating method of dissolved salt ", it adopts the heat vessel making expected value size and utilizes fused salt as heat storage heat energy storage in container, under normal sunshine condition, sun power is contacted with fused salt, make fused salt dissolving thus absorb sun power, at this moment it is an endothermic process, and when there is no sun power, fused salt and heat release. Required material is heated. But, when sun power wretched insufficiency, it is not enough to maintain the running of device, and its heat transfer efficiency is low, and heat-transfer surface is little, and energy utilization rate is low.
Summary of the invention:
The present invention provides a kind of solar energy accumulation formula heat supply method and device thereof, it uses solar heat collector, utilize sun power for heating source, accumulation of energy material fused salt in accumulation of energy device is heated, fused salt is accumulation of energy source after absorbing heat, utilize accumulation of energy source for heat supply, the thermal source of heating and heating hot spring, and when accumulation of energy source is also not enough, then utilize sun power that accumulation of energy material is carried out heat supply, so just formed between sun power or accumulation of energy source, the heat supply method of the interactive adaptive self-equilibrating adjustment formed and system, sun power and paddy electric energy is made to obtain comprehensive utilization, improve the efficiency that it utilizes, structure is simple.
A kind of solar energy accumulation formula heat supply method of the present invention, it utilizes accumulation of energy device to carry out energy-storage type heat supply, utilizing accumulation of energy device to carry out energy-storage type heat supply described in it is using sun power as heating source, carry out heating accumulation of energy to the accumulation of energy material of accumulation of energy device by corresponding heat transferring medium, again taking the heat energy of accumulation of energy material as carrying out heat supply for heat target, also or taking the heat energy of accumulation of energy material and sun power as carrying out heat supply for heat target.
A kind of solar energy accumulation formula heating plant of the another object of the present invention, comprise heating unit, it also comprises an accumulation of energy device and heat transferring medium storage tank, described accumulation of energy device comprises the accumulation of energy material and heat exchanger be located at respectively in corresponding accumulation of energy tank, corresponding described heat transferring medium storage tank is connected to the corresponding input and output end of the described heat exchanger of described heating unit and accumulation of energy device, the input terminus of the heat exchanger that the output terminal of described heating unit is corresponding to accumulation of energy device is connected, described accumulation of energy device, also or accumulation of energy device and corresponding heating unit be also connected to corresponding for heat target.
Solar energy accumulation formula heating plant of the present invention, described in it, accumulation of energy device includes two heat-exchanger, it is provided with corresponding two heat transferring medium storage tanks corresponding to two heat-exchanger, wherein a heat transferring medium storage tank is connected to described in corresponding heating unit and corresponding one between heat exchanger, and another heat transferring medium storage tank is connected to heat exchanger described in another and corresponding supplying between heat target.
Heating unit of the present invention comprises solar heater, and described solar heater is connected to an accumulation of energy device.
Solar energy accumulation formula heating plant of the present invention, it is provided with intelligent control device between heat transferring medium storage tank and described corresponding heating unit.
Accumulation of energy material of the present invention is fused salt, and described fused salt comprises saltpetre and Sodium Nitrite or saltpetre, Sodium Nitrite and SODIUMNITRATE mixing and forms.
Inventing described method is use solar heater, the energy heat exchanging medium utilizing sun the subject of knowledge and the object of knowledge to produce heats, and using the heat transferring medium after heating as supplying heat source, to the accumulation of energy material fused salt conveying capacity being arranged in energy storage device, then heat supply is carried out to for heat target, formed with between sun power or fused salt energy, the heat supply method of an interactive adaptive self-equilibrating adjustment of formation. Confession heat target of the present invention comprises heat-exchanger rig, and described heat-exchanger rig is oil water heat exchange device.
Heating unit of the present invention can also be connected in parallel on the medium pipeline between heat transferring medium storage tank and energy storage device by solar heater and paddy electric heater simultaneously.
The present invention utilizes solar energy accumulation formula heat supply method and device thereof, it utilizes heat transferring medium, heat transferring medium of the present invention is liquid heat transfer medium, described liquid heat transfer medium is thermal oil or is thermal oil, when heat transferring medium by solar heat collector and or paddy electric heater unit heat after, as heating source, by heat exchanger in accumulation of energy device, accumulation of energy material molten salt mixture in accumulation of energy tank body is heated, fused salt stores with the form of thermal energy after absorbing the energy brought with thermal oil. And heat transferring medium is back in heat transferring medium storage tank after heat release. When solar thermal energy and/or paddy electricity energy storage not heat supply, the storage power that it absorbs then is discharged by accumulation of energy material fused salt, carries out heat exchange by heat exchanger equally, and fused salt at this moment then turns into an exothermic process. When fused salt heat release, then again thermal oil is heated, then to for heat target heat-exchanger rig oil water heat exchange device heat supply, water is heated as supplying heat source by the heat transferring medium after heating and thermal oil, so just achieve the heat supply to system, heating, and heating thermal water etc.
It is supplemented, fully utilizes by energy characteristics that the present invention makes full use of sun power and paddy electricity mutually, when sunshine, automatically controlled valve 11 controls by solar heater 1 with the heating of sun power heat exchanging medium, by the heat energy of accumulation of energy material fused salt absorption this heat transferring medium of storage in accumulation of energy device and as required for for heat target heat supply; When night or illumination are not enough, automatically controlled valve 11 starts the electric energy heat exchanging medium heating that paddy electric heater utilizes the paddy electricity time, same absorb, by the accumulation of energy material molten salt mixture in accumulation of energy device, the heat energy storing the electrically heated heat transferring medium of this paddy and as required for for heat target heat supply. Owing to molten salt mixture has stronger accumulation of energy function; Therefore, the heat energy that sun power, paddy electricity energy storage, fused salt store can be implemented to select one by the heating system of the present invention, complementary, arbitrary combination formula self-equilibrating adjustment control heat supply, makes sun power, and paddy electricity energy storage is fully used.
Accompanying drawing illustrates:
Fig. 1 is the apparatus structure schematic diagram of the embodiment of the present invention 1;
Fig. 2 is the apparatus structure schematic diagram of the embodiment of the present invention 3.
Embodiment
Below in conjunction with concrete enforcement mode of implementing, the present invention is described in further detail.
The present invention is by the heating unit such as solar heater 1 and/or paddy electric heater, solar heater is utilized to absorb the thermal energy of sun power when abundance at sunshine and/or utilize paddy electric heater at the electric energy of paddy electrically heated time, corresponding heat transferring medium is heated, corresponding accumulation of energy material fused salt 4 is heated through a corresponding heat exchanger of accumulation of energy device with the heat transferring medium (thermal oil) after heating, absorb the heat storing heat transferring medium by fused salt and carry out accumulation of energy, the heat energy stored by fused salt savings again is exported by another heat exchanger corresponding of accumulation of energy device and is supplied to for heat target. the accumulation of energy medium fused salt of its accumulation of energy device first absorbs corresponding high temperature, and relative to the real time temperature of fused salt, the heat energy of heat transferring medium (thermal oil) carries out accumulation of energy, reoffers to for heat target.
In the accumulation of energy medium fused salt heat supplying process utilizing accumulation of energy device, when the lower deficiency of temperature of fused salt thinks heat supply object heat supply, being switched to by corresponding heating unit solar heater 1 and/or paddy electric heater by high temperature heat transferring medium by corresponding intelligent control device is fused salt supplementing energy, now, fused salt is heat absorption accumulation of energy; When fused salt is up to certain temperature, intelligent control system switching control is for being for heat target heat supply by accumulation of energy device accumulation of energy medium fused salt, and now, fused salt can heat release for releasing. And then, utilize its accumulation of energy medium fused salt by the heat absorption and release effect of corresponding two heat-exchanger by accumulation of energy device, the Conversion of energy of sun power and/or the instability with certain interval ageing, interrupted and pulsation of paddy electricity is for conversion into complementation, continuous, the balanced and stable energy for for heat target heat supply. And then, by intelligent control device, sun power (well heater) and/or paddy electricity (well heater) selected one with accumulation of energy medium (device), combine and/or interactive operation switching control, to form the heating system of a complementary adaptive equalization adjustment control. Its heat transferring medium can be the liquid heat transfer mediums such as thermal oil or be the liquor heat transferring mediums such as salt brine solution.
Embodiment 1
It is illustrated in figure 1 the structural representation of an embodiment of the present invention, heating system of the present invention, accumulation of energy device described in it includes two heat-exchanger and is provided with corresponding two heat transferring medium storage tanks corresponding to two heat-exchanger, wherein the output terminal of a heat transferring medium storage tank is connected to the input terminus of a wherein heat exchanger of accumulation of energy device by corresponding heating unit, and the output terminal of this heat exchanger is connected to the input terminus of this heat transferring medium storage tank; The output terminal of its another heat transferring medium storage tank is connected to the input terminus of wherein another heat exchanger of accumulation of energy device, the output terminal of this another heat exchanger is connected to for heat target input terminus, and the input terminus of another heat transferring medium storage tank is connected to the corresponding output port for heat target.
The present embodiment is specially and is provided with two heat transferring medium storage tanks 201, 202, the fused salt 4 being located in accumulation of energy tank 3, and the corresponding two heat-exchanger 13 in the fused salt 4 being located in accumulation of energy tank body 3, 13a, corresponding to two heat-exchanger 13, 13a is provided with corresponding two heat transferring medium storage tanks 201, 202, wherein the output terminal of a heat transferring medium storage tank 201 is connected to solar heater 1 and the input terminus of paddy electric heater 12 by medium pipeline 701 and corresponding automatically controlled valve 11 thereof respectively, the output terminal of its solar heater 1 and paddy electric heater 12 is connected to the input terminus of this heat exchanger 13 of accumulation of energy tank 3 by a corresponding oil force (forcing) pump 801.
The output terminal of another heat transferring medium storage tank 202 is connected to the input terminus of another heat exchanger 13a of accumulation of energy tank 3, and the output terminal of this another heat exchanger 13a is connected to the input terminus of the heat-exchanger rig for heat target respectively by corresponding control valve 904; The input terminus of this heat transferring medium storage tank 202 is connected to the corresponding output end of the heat-exchanger rig for heat target; The heat-exchanger rig for heat target of the present embodiment comprises parallel with one another three oil water heat exchange device 601,602,603.
Be made up of the heat absorption energy storage loop of the accumulation of energy medium fused salt of the accumulation of energy device of the heating system of the present embodiment a heat exchanger 13 of heat transferring medium storage tank 201, solar heater 1 and/or paddy electric heater 12 with accumulation of energy tank 3, releasing by the heat release of the accumulation of energy device accumulation of energy medium fused salt of heat transferring medium storage tank 202, the heating system forming the present embodiment for the heat-exchanger rig of heat target and another heat exchanger 13a of accumulation of energy tank 3 can loop.
Automatically controlled valve 11 is electrically connected on the intelligent control device of system respectively, controls the running status of automatically controlled valve 11 and solar heater 1 and paddy electric heater 12 by intelligent control device, automatically controls as required. When solar heater 1 does not work, intelligent control device control paddy electric heater 12 is also automatically switched to by corresponding automatically controlled valve 11 and is heated by the thermal oil 10 in medium pipeline 701, utilizes the electric energy of paddy electricity time to be heated by thermal oil 10. Carry out absorbing storage to the heat energy of high temperature heat conductive oil 10 by the fused salt in accumulation of energy tank 3. And if do not need to use solar heater 1 and during paddy electric heater 12, thermal oil 10 is heated by the accumulation of energy making system automatically switch to the fused salt 4 utilized in accumulation of energy tank 3 by intelligent control device, and then for for heat target oil water heat exchange device 601,602,603 heat supply, water or [underground spring are heated, it is achieved heat supply, the warm hot spring of confession are supplied water.
The accumulation of energy tank body of the present embodiment is provided with corresponding chuck 501, chuck 501 is provided with assisted heating device, independently fused salt can be heated by chuck 501 and corresponding assisted heating device, also or with solar heater 1 and/or paddy electric heater 12 jointly fused salt be heated as required, implement the heat supply for heat target.
On heat transferring medium storage tank 201,202 and heat energy accumulation of energy tank 3, it is respectively equipped with the control valve 901,902,903 of emptying, medium pipeline 701 between solar heater 1 and accumulation of energy tank 3 is provided with oil force (forcing) pump 801, for being pressurizeed by the thermal oil 10 flowing through medium pipeline 701. Accumulation of energy material fused salt 4 is normally made up of saltpetre and Sodium Nitrite or saltpetre, Sodium Nitrite and SODIUMNITRATE mixing; The fused salt 4 of the present embodiment of invention is made up of than component saltpetre 50-60% and Sodium Nitrite 40 50% or saltpetre 50-60%, Sodium Nitrite 35-40% and SODIUMNITRATE 5-10% mixing following quality.
Its working process and principle be: with the thermal oil 10 in heat transferring medium storage tank 201, it is flowed in solar heater 1 and/or paddy electric heater 12 through medium pipeline 701, by electric energy when sun power and/or electric-net valley, this thermal oil 10 is heated, high temperature heat conductive oil 10 after heating is delivered in a wherein heat exchanger 13 of accumulation of energy tank 3 again under the effect of oil force (forcing) pump 801 through medium pipeline 701, carries out absorbing accumulation of energy to high temperature heat conductive oil heat energy by the accumulation of energy material fused salt 4 in accumulation of energy tank body 3.
The energy that accumulation of energy material fused salt 4 savings in accumulation of energy device stores passes to for heat target oil water heat exchange device 601,602,603 by corresponding bypass medium pipeline 702 through thermal oil 10 by another heat exchanger 13a of accumulation of energy tank 3 as required, and then proposes hot water for life, Hot Spring Bath, heating etc. for user. Even if when sun power and paddy electric heater do not work or sunlight deficiency or powerup issue occur like this, accumulation of energy device can also utilize the energy storage of its accumulation of energy material for providing normal heat supply for heat target.
The running status of its paddy electric heater and solar heater can control parallel with one another by intelligent control device as required or select an operation; And by automatically controlled valve, corresponding thermal oil is coordinated control accordingly by intelligent control device. Simultaneously, it is also possible to utilize the temperature etc. of automatically controlled valve control by the flow control thermal oil of thermal oil.
Embodiment 2
In the present embodiment, the heating unit being connected between heat exchanger 13 input terminus of heat transferring medium storage tank 201 and accumulation of energy tank body 3 is only a solar heater or paddy electric heater. All the other structures of the present embodiment or technological process are all identical with embodiment 1.
Embodiment 3
As shown in Figure 2, energy-storage type heating system of the present invention, another implements mode. Described accumulation of energy device comprises a heat exchanger, is provided with corresponding heat transferring medium storage tank 201 corresponding to this heat exchanger 13. The output terminal of heat transferring medium storage tank is connected to the input terminus of this heat exchanger by corresponding heating unit or bypass medium pipeline, the output terminal of described heat exchanger is connected to heat transferring medium storage tank and the input terminus for heat target, the input terminus of described heat exchanger is also connected to the input terminus for heat target, and the output terminal for heat target is connected on the input terminus of heat transferring medium storage tank.
Namely the present embodiment is only provided with a heat transferring medium storage tank 201, a heat exchanger 13 only it is provided with in fused salt 4 in its accumulation of energy tank 3, heat transferring medium storage tank 201 output terminal is connected to solar heater 1 and the input terminus of paddy electric heater 12 through medium pipeline 701 and corresponding automatically controlled valve 11, and by leading, medium pipeline 701 is connected to the input terminus of the heat exchanger 13 of accumulation of energy tank 3 with oil force (forcing) pump 801 accordingly to the output terminal of solar heater 1 and paddy electric heater 12; The output terminal of heat transferring medium storage tank 201 is also connected to the input terminus of heat exchanger 13 by a bypass medium pipeline 703, corresponding control valve 906 and oil force (forcing) pump 801 simultaneously. The output terminal of heat exchanger 13 is connected to the entrance of heat transferring medium storage tank 201 and the input terminus of the oil water heat exchange device 601 for heat target respectively by medium pipeline, corresponding control valve 904; Meanwhile, the input terminus of heat exchanger 13 is connected to the input terminus of oil water heat exchange device 601 for heat target to oil pressurization pump outlet by bypass bypass medium pipeline 702 and corresponding control valve 904. The output terminal of the oil water heat exchange device 601 of heat target is supplied to be connected to the input terminus of heat transferring medium storage tank 201 by a control valve. Establishing water force (forcing) pump 802 on the water inlet pipe of oil water heat exchange device 601 water intake end, the rising pipe after oil water heat exchange device 601 heat exchange connects the user of heat supply, heating and thermal water.
Its composition of accumulation of energy material fused salt 4 of the present invention can be saltpetre 53%, Sodium Nitrite 40% and SODIUMNITRATE 7% by percentage to the quality; Or saltpetre and Sodium Nitrite respectively account for 50%; May also be saltpetre 60% and Sodium Nitrite 40%.
For the present embodiment, when solar heater 1 and paddy electric heater 12 do not work, automatically controlled valve 11 cuts out by the control of intelligent control device, control the heat exchanger 13 through bypass medium pipeline 703 flows into accumulation of energy tank 3 by the thermal oil 10 of heat transferring medium storage tank 201 by corresponding control valve 906 to carry out absorbing accumulation of heat to thermal oil 10 by fused salt 4 after heat exchange, this thermal oil 10 carries out heat exchange through the water that corresponding bypass medium pipeline 702 and control valve enter into oil water heat exchange device 601 and oil water heat exchange device 601 and adds hot water afterwards, release the input terminus that the thermal oil 10 after heat is back to heat transferring medium storage tank 201 from oil water heat exchange device 601 through corresponding control valve, form a heat absorption, the heat release circulation of thermal oil.
When solar heater 1 and/or paddy electric heater 12 utilize paddy electric institute generate energy more sufficient, control bypass medium pipeline 703 by control valve 906 to close, when not needing to be heated by the fused salt 4 in accumulation of energy tank body 3, and the thermal oil controlling heat transferring medium storage tank 201 by automatically controlled valve 11 directly carries out heat supply to for heat target oil water heat exchange device 601 through bypass duct 702 and the control of corresponding control valve, and not needing the accumulation of energy medium by accumulation of energy tank body 3 to carry out accumulation of energy, the control valve being now connected between heat exchanger 13 and oil water heat exchange device 601 input terminus is closed. All the other structure and typical process flow etc. of the present embodiment can with above-mentioned any embodiment roughly the same.
Claims (2)
1. a solar energy accumulation formula heating plant, comprise heating unit, it also comprises an accumulation of energy device and heat transferring medium storage tank, described accumulation of energy device comprises the accumulation of energy material and heat exchanger be located at respectively in corresponding accumulation of energy tank, corresponding described heat transferring medium storage tank is connected to the corresponding input and output end of the described heat exchanger of described heating unit and accumulation of energy device, the input terminus of the heat exchanger that the output terminal of described heating unit is corresponding to accumulation of energy device is connected, described accumulation of energy device, also or accumulation of energy device and corresponding heating unit be also connected to corresponding for heat target,
Described accumulation of energy device includes two heat-exchanger, it is provided with corresponding two heat transferring medium storage tanks corresponding to two heat-exchanger, wherein a heat transferring medium storage tank is connected to described in corresponding heating unit and corresponding one between heat exchanger, and another heat transferring medium storage tank is connected to heat exchanger described in another and corresponding between heat target;
Described heating unit comprises solar heater, and described solar heater is connected to an accumulation of energy device;
It is characterized in that being provided with intelligent control device between heat transferring medium storage tank and described corresponding heating unit; The running status of automatically controlled valve and solar heater and paddy electric heater is controlled by intelligent control device;
The running status of described paddy electric heater and solar heater controls parallel with one another by intelligent control device or selects an operation; And by automatically controlled valve, corresponding thermal oil is coordinated control accordingly by intelligent control device; Meanwhile, the temperature of automatically controlled valve control by the flow control thermal oil of thermal oil is utilized;
When described solar heater does not work, intelligent control device control paddy electric heater is also automatically switched to by corresponding automatically controlled valve and is heated by the thermal oil in respective media pipeline, utilizes the electric energy of paddy electricity time to be heated by thermal oil; Carry out absorbing storage to the heat energy of corresponding high temperature heat conductive oil by the fused salt in accumulation of energy tank; And if do not need to use solar heater and during paddy electric heater, by intelligent control device, system being automatically switched to utilizes the accumulation of energy of the fused salt in corresponding accumulation of energy tank to heat-conducting oil heating, and then for for heat target oil water heat exchange device heat supply, it is achieved heat supply, supply water for warm hot spring.
2. according to solar energy accumulation formula heating plant according to claim 1, it is characterized in that described accumulation of energy material is fused salt, described fused salt comprises saltpetre and Sodium Nitrite or saltpetre, Sodium Nitrite and SODIUMNITRATE mixing and forms;
Its composition of described fused salt is saltpetre 53%, Sodium Nitrite 40% and SODIUMNITRATE 7% by percentage to the quality; Or saltpetre and Sodium Nitrite respectively account for 50%; Also or saltpetre 60% and Sodium Nitrite 40%.
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| JP2005134104A (en) * | 2003-10-09 | 2005-05-26 | Matsushita Electric Ind Co Ltd | Solar system and operation method of solar system |
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