CN101604864A - Sodium-sulphur battery and alkali metal thermo-electric direct converter integrated energy device - Google Patents
Sodium-sulphur battery and alkali metal thermo-electric direct converter integrated energy device Download PDFInfo
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- CN101604864A CN101604864A CNA2009100725274A CN200910072527A CN101604864A CN 101604864 A CN101604864 A CN 101604864A CN A2009100725274 A CNA2009100725274 A CN A2009100725274A CN 200910072527 A CN200910072527 A CN 200910072527A CN 101604864 A CN101604864 A CN 101604864A
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Abstract
The present invention is to provide a kind of sodium-sulphur battery and alkali metal thermo-electric direct converter integrated energy device.It comprises alkali metal thermo-electric direct converter and sodium-sulphur battery, and it also comprises electric control gear, and alkali metal thermo-electric direct converter links to each other with electric control gear with output, the input port of sodium-sulphur battery, and the hot junction of alkali metal thermo-electric direct converter connects storage heater; Alkali metal thermo-electric direct converter has two outputs, and two output ports link to each other with electric control gear, and output port A is in underload when work in load sodium-sulphur battery is charged, output port B by electric control gear to the load output current; The port C of sodium-sulphur battery one side links to each other, is used for the charging input of alkali metal thermo-electric direct converter to sodium-sulphur battery with electric control gear, port D links to each other to the load output current with electric control gear.The present invention can be applicable to various boats and ships as power resources; Can be used for waste incineration and generating electricity, improve the utilance of industrial waste heat; Can be used for power networking as city illumination power supply use.
Description
(1) technical field
What the present invention relates to is a kind of novel energy use device.Specifically a kind of energy device by sodium-sulphur battery (integrated) and alkali metal thermo-electric transducer (AMTEC) (integrated).
(2) background technology
Sodium-sulphur battery is made up of fused solution electrode and solid electrolyte.The active material that constitutes negative pole is a motlten metal sodium, and constituting anodal active material is sulphur and sodium polysulfide fused salt.Ceramic material β " Al
2O
3As the solid electrolyte barrier film of holding concurrently.Shell is then generally used stainless steel and other metal materials.Sodium-sulphur battery has many characteristic parts: specific energy 1 height, its theoretical specific energy is 760WhKg
-1, reality is greater than 100WhKg
-1, be lead-acid battery 3-4 doubly; Electric current, high power discharge greatly.Its discharge current density generally can reach 200-300mACm
-2, and instantaneous time can be emitted its self-energy of 3 times; The efficiency for charge-discharge height.Owing to adopt solid electrolyte, so do not adopt the sort of self discharge and the side reaction of liquid electrolytic electrolitc secondary cell usually, charging and discharging currents efficient almost 100%.
Begin at the end of the eighties and the beginning of the nineties, giving priority to sodium-sulphur battery abroad uses as (as the power station energy storage) under the stationary applica-tions, and more and more show its superiority, develop sodium-sulphur battery cooperatively as energy-storage battery as Tokyo Electric Power (TEPCO) and NGK company, its application target aiming power station load leveling (promptly plays the effect of peak clipping Pinggu, the electricity that night is unnecessary is stored in the battery, from battery, discharge again during peak of power consumption to daytime), the UPS emergency power supply and moment offset supply etc., and the implementation phase beginning to enter commercialization in 2002, built up the energy storage sodium-sulphur battery device of maximum-norm (8MW) in the world, by in October, 2005 statistics, produce the sodium-sulphur battery amount of batteries per year and surpassed 100MW, begin simultaneously to overseas output.
But sodium-sulphur battery also has weak point, needs certain temperature to guarantee that its working temperature is at 580-630K during sodium-sulphur battery work.Need stable thermal source to guarantee working temperature like this for it.
Alkali metal thermo-electric direct converter (AMTEC) is a kind of with the energy conversion technique of alkali metal (potassium, sodium) as working media.It is with ceramic material β " Al
2O
3Be the ion selectivity permeable membrane.The thermal power transfer that AMTEC can directly produce solar energy, external firing, radioisotope, reactor thermal source and waste heat becomes electric energy.Alkali metal working medium (liquid state or gaseous state) is moved in closed cycle system, and its transfer process characteristics are isothermal expansion/compression, and therefore isobaric heating can obtain high efficiency.AMTEC has the characteristics of clean noiseless, compact equipment, little, the suitable dispersed placement of maintenance in addition.Therefore both can recycle, and also can be separately be used for industrial generation, and can be used for the generating equipment and the civilian means of transportation of underwater hiding-machine as the calm type high-energy-density as the generating set of thermo-power station in the preposition of thermal power station.
Alkali metal thermo-electric direct converter is when work, and its temperature end working temperature is at 800-1200K, and the low-temperature end working temperature is between 400K-600K.When thermal source provides required heat to guarantee for the AMTEC temperature end after, also have certain heat residue, this part after-heat can not get effectively utilizing usually.The AMTEC low-temperature end also has higher working temperature in addition, and generally, the heat of low-temperature end part is also directly discharged and is not fully utilized.If this two parts heat is used, just can improves energy utilization ratio.And AMTEC is as long as guarantee will to generate electricity under the situation of thermal source abundance always, and how rational and effective distributes these electric energy to use also is a problem.
(3) summary of the invention
The object of the present invention is to provide a kind of condition of work work that sodium-sulphur battery (integrated) and alkali metal thermo-electric direct converter (integrated) can required, carry out the conversion and the output of energy, use sodium-sulphur battery and alkali metal thermo-electric direct converter integrated energy device flexibly.
The object of the present invention is achieved like this:
It comprises alkali metal thermo-electric direct converter and sodium-sulphur battery, the hot junction of alkali metal thermo-electric direct converter connects storage heater, keep heat conduction to be connected between the cold junction of alkali metal thermo-electric direct converter and the sodium-sulphur battery, it also comprises electric control gear, the output of alkali metal thermo-electric direct converter and sodium-sulphur battery, input port links to each other with electric control gear, the output of described alkali metal thermo-electric direct converter and sodium-sulphur battery, the concrete connected mode that input port links to each other with electric control gear comprises: alkali metal thermo-electric direct converter has two outputs, two output ports link to each other with electric control gear, output port A is in underload when work in load sodium-sulphur battery is charged, output port B by electric control gear to the load output current; The port C of sodium-sulphur battery one side links to each other, is used for the charging input of alkali metal thermo-electric direct converter to sodium-sulphur battery with electric control gear, port D links to each other to the load output current with electric control gear.
The present invention can also comprise:
1, alkali metal thermo-electric direct converter and sodium-sulphur battery are gathered in outer wall, outer wall outside is provided with heat-insulation layer, keeps heat conduction to be connected between the cold junction of described alkali metal thermo-electric direct converter and the sodium-sulphur battery being being provided with thermal conductive material layer between the cold junction of alkali metal thermo-electric direct converter and sodium-sulphur battery.
2, in the both sides of thermal conductive material layer porous material layer is set.
3, sodium-sulphur battery places in the vacuum heat-preserving case, and described storage heater comprises first storage heater and second storage heater, and first storage heater is connected with the hot junction of alkali metal thermo-electric direct converter, and second storage heater absorbs the first storage heater waste heat and links to each other with the vacuum heat-preserving case.
3, sodium-sulphur battery places in the vacuum heat-preserving case, described storage heater comprises first storage heater and second storage heater, first storage heater is connected with the hot junction of alkali metal thermo-electric direct converter, keeps heat conduction to be connected between the cold junction of described alkali metal thermo-electric direct converter and the sodium-sulphur battery being second storage heater to absorb the first storage heater waste heat and links to each other with the vacuum heat-preserving case.
4, sodium-sulphur battery also comprises standby charging port E.
The present invention is with sodium-sulphur battery and the integrated new energy system of alkali metal thermo-electric direct converter (AMTEC).This system utilizes storage heater that heat-source energy is stored, and reasonably distributes, and makes sodium-sulphur battery (integrated) and alkali metal thermo-electric direct converter (integrated) carry out the conversion and the output of energy in the condition of work work that requires.In addition, alkali metal thermo-electric direct converter is a kind of device that produces electric energy, and sodium-sulphur battery is a kind of chargeable battery, for this system of reasonable distribution electric energy controls AMTEC (integrated) when operating load is in the low consumption operating state by electric control gear, store for sodium-sulphur battery (integrated) with producing too much power delivery: when operating load was in the high flow rate operating state, sodium-sulphur battery (integrated) and AMTEC (integrated) provided power for load together.This electric control gear control controllable current way of output is that parallel connection, series connection are to exchange or direct current simultaneously.This has increased system's flexibility more in the use.For realizing above-mentioned idea, two kinds of technical schemes have been prepared.
Native system makes full use of the characteristics of sodium-sulphur battery (integrated) and alkali metal thermo-electric transducer (AMTEC) (integrated), has improved energy utilization ratio by two kinds of different schemes.And the in parallel or series connection by electric control gear control electric power, direct current or exchange output.Native system can be applicable to various boats and ships as power resources; Can be used for waste incineration and generating electricity, the utilance that improves industrial waste heat can be used for power networking as city illumination power supply use.
(4) description of drawings
Fig. 1 is the syndeton schematic diagram of first kind of execution mode of the present invention.
Fig. 2 be first kind of execution mode of the present invention alkali metal thermo-electric direct converter and the link structure schematic diagram of sodium-sulphur battery.
Fig. 3 is an electric control gear schematic diagram of the present invention.
Fig. 4 is the syndeton schematic diagram of second kind of execution mode of the present invention.
(5) embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1 and Fig. 2, first kind of execution mode of the present invention is:
Seeing also shown in Figure 2ly, is connector, and this partial action is a working temperature of guaranteeing sodium-sulphur battery (integrated).
Part 11 is heat-insulation layers.Its effect is the loss that reduces heat.Can select the mineral wool material;
Part 12 is outer walls of connector, uses common stainless steel to get final product;
Part 13 is Heat Conduction Materials, the conductive coefficient that this material requirements is higher.As copper, aluminium alloy etc.
Part 14 is porous packing materials.This material directly contacts with the two ends of sodium-sulphur battery (integrated) with AMTEC (integrated) respectively in the both sides of Heat Conduction Material.The porous packing material of this part requires voidage moderate, and higher thermal conductivity is arranged.The effect of this part guarantees the stability of thermal source, even after thermal source stops heat supply, because the characteristic of porous material also can make temperature obtain within a certain period of time just protecting.
AMTEC (integrated) has two outputs, and these two output ports are in low-temperature end one side.Two output ports link to each other with electric control gear through the wire hole on the connector by anti-thermal wire.AMTEC (integrated) when load is in underload work, finishes the electric weight output to sodium-sulphur battery (integrated) charging by output port A; Port B by electric control gear to the load output current.
The port C of sodium-sulphur battery (integrated) side links to each other with electric control gear by anti-thermal wire, finishes the input of AMTEC (integrated) to sodium-sulphur battery (integrated) charging; Port D by electric control gear to the load output current.Port E is standby charge port, as AMTEC (integrated) when breaking down, under sodium-sulphur battery (integrated) operating ambient temperature was guaranteed situation, available other power sources were sodium-sulphur battery (integrated) charging, to guarantee the normal electric power output of sodium-sulphur battery (integrated).
Because AMTEC (integrated) and sodium-sulphur battery (integrated) are all at high temperature worked, so the lead on any one port is anti-thermal wire.The for example outside lead that has thermal insulation ceramics.All comprised the both positive and negative polarity lead of battery pack separately in the every solar heat protection electric wire.Can just can obtain the both positive and negative polarity of this part by the anti-thermal wire on any one port.
Seeing also shown in Figure 3ly, is the electric control gear in the scheme, and this device is responsible for integral body control of electric power.When a Closing Switch 2 or 3, AMTEC (integrated) or sodium-sulphur battery (integrated) can be separately electric; When load was in the work low consumption, Closing Switch 1 was then finished AMTEC (integrated) to sodium-sulphur battery (integrated) charging process by connectivity port A and C; When load is in the work high flow rate, while Closing Switch 2 and 3, then AMTEC (integrated) and sodium-sulphur battery (integrated) can carry out supply of electric power to load simultaneously.And can to select AMTEC (integrated) and sodium-sulphur battery (integrated) by switch 4 and 5 according to the load actual conditions be output in parallel, and still series connection is exported; Finally can select output direct current or alternating current by switch 6, when load needed direct current, Closing Switch 6 exportable direct currents when load needs alternating current, can transfer direct current to alternating current output by IGBT.As AMTEC (integrated) when going wrong, can not in time charge to sodium-sulphur battery (integrated), then can connect standby charge power supply device, as solar power plant, to guarantee that sodium-sulphur battery (integrated) is normally to the load output power by switch 7.
In conjunction with shown in Figure 4, first kind of execution mode of the present invention is:
Thermal source directly provides heat for storage heater 1.Storage heater 1 stores the heat that obtains, and guarantees that for AMTEC (integrated) temperature end provides temperature T 1 the T1 scope is at 800K-1200K; Because sodium-sulphur battery (integrated) work temperature 2 is lower than alkali metal thermo-electric direct converter temperature end temperature T 1, the T2 scope is at 573K-623K, and institute thinks its working temperature of assurance, and storage heater 2 can obtain heat from storage heater 1 remaining thermal source, and stores.Reduced like this whole system to thermal source and requirement.Improved the utilance of thermal source.Storage heater 2 links to each other with the vacuum heat-preserving case, and sodium-sulphur battery (integrated) has been guaranteed the working temperature of sodium-sulphur battery (integrated) so more as in the vacuum heat-preserving case.
Consistent in the structure of sodium-sulphur battery in this scheme (integrated) and AMTEC (integrated) and the scheme one.
Consistent in electric control gear in this scheme and the scheme one.The electric control gear circuit sees also Fig. 4
These two kinds of schemes more as can be seen scheme one AMTEC (integrated) couple together by connector with sodium-sulphur battery (integrated), AMTEC (integrated) can have any problem with being connected of storage heater A like this.The packing material that should guarantee connector inside simultaneously has bigger conductive coefficient, for example utilizes metallic copper, can improve cost like this.
Scheme two uses device category more, and volume is big, is difficult to regulate and control storage heater A and storage heater heat ratio.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in the scope that does not break away from technical solution of the present invention, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, foundation technical spirit of the present invention is to above any simple modification that embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (5)
1, a kind of sodium-sulphur battery and alkali metal thermo-electric direct converter integrated energy device, it comprises alkali metal thermo-electric direct converter and sodium-sulphur battery, it is characterized in that: the hot junction of alkali metal thermo-electric direct converter connects storage heater, keep heat conduction to be connected between the cold junction of alkali metal thermo-electric direct converter and the sodium-sulphur battery, it also comprises electric control gear, the output of alkali metal thermo-electric direct converter and sodium-sulphur battery, input port links to each other with electric control gear, the output of described alkali metal thermo-electric direct converter and sodium-sulphur battery, the concrete connected mode that input port links to each other with electric control gear comprises: alkali metal thermo-electric direct converter has two outputs, two output ports link to each other with electric control gear, output port A is in underload when work in load sodium-sulphur battery is charged, output port B by electric control gear to the load output current; The port C of sodium-sulphur battery one side links to each other, is used for the charging input of alkali metal thermo-electric direct converter to sodium-sulphur battery with electric control gear, port D links to each other to the load output current with electric control gear.
2, sodium-sulphur battery according to claim 1 and alkali metal thermo-electric direct converter integrated energy device, it is characterized in that: alkali metal thermo-electric direct converter and sodium-sulphur battery are gathered in outer wall, outer wall outside is provided with heat-insulation layer, keeps heat conduction to be connected between the cold junction of described alkali metal thermo-electric direct converter and the sodium-sulphur battery being being provided with thermal conductive material layer between the cold junction of alkali metal thermo-electric direct converter and sodium-sulphur battery.
3, sodium-sulphur battery according to claim 2 and alkali metal thermo-electric direct converter integrated energy device, it is characterized in that: the both sides at described thermal conductive material layer are provided with porous material layer.
4, sodium-sulphur battery according to claim 1 and alkali metal thermo-electric direct converter integrated energy device, it is characterized in that: sodium-sulphur battery places in the vacuum heat-preserving case, described storage heater comprises first storage heater and second storage heater, first storage heater is connected with the hot junction of alkali metal thermo-electric direct converter, keeps heat conduction to be connected between the cold junction of described alkali metal thermo-electric direct converter and the sodium-sulphur battery being second storage heater to absorb the first storage heater waste heat and links to each other with the vacuum heat-preserving case.
5, according to any one described sodium-sulphur battery of claim 1-4 and alkali metal thermo-electric direct converter integrated energy device, it is characterized in that: sodium-sulphur battery also comprises standby charging port E.
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|---|---|---|---|
| CN2009100725274A CN101604864B (en) | 2009-07-17 | 2009-07-17 | Integrated energy device of sodium-sulfur battery and alkali metal thermoelectric direct converter |
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|---|---|---|---|
| CN2009100725274A CN101604864B (en) | 2009-07-17 | 2009-07-17 | Integrated energy device of sodium-sulfur battery and alkali metal thermoelectric direct converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207576A (en) * | 2015-10-28 | 2015-12-30 | 蒋安为 | Infrared generator |
| CN111540937A (en) * | 2020-04-28 | 2020-08-14 | 天目湖先进储能技术研究院有限公司 | Large-capacity secondary battery and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102307025A (en) * | 2011-09-15 | 2012-01-04 | 华北电力大学 | Integrated solar power generation and storage device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1987288B (en) * | 2006-11-03 | 2010-05-12 | 江苏大学 | Solar energy comprehensive utilizing system |
| CN101246980B (en) * | 2008-03-26 | 2011-07-27 | 中国矿业大学(北京) | Solid-oxide fuel battery and pyroelectric material associated power generation system |
| CN201243069Y (en) * | 2008-08-04 | 2009-05-20 | 比亚迪股份有限公司 | Heat energy charger |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207576A (en) * | 2015-10-28 | 2015-12-30 | 蒋安为 | Infrared generator |
| CN111540937A (en) * | 2020-04-28 | 2020-08-14 | 天目湖先进储能技术研究院有限公司 | Large-capacity secondary battery and application thereof |
| CN111540937B (en) * | 2020-04-28 | 2022-01-25 | 天目湖先进储能技术研究院有限公司 | Large-capacity secondary battery and application thereof |
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