JP7441951B2 - Molten salt layered energy storage system with constant temperature air supply - Google Patents
Molten salt layered energy storage system with constant temperature air supply Download PDFInfo
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- JP7441951B2 JP7441951B2 JP2022535159A JP2022535159A JP7441951B2 JP 7441951 B2 JP7441951 B2 JP 7441951B2 JP 2022535159 A JP2022535159 A JP 2022535159A JP 2022535159 A JP2022535159 A JP 2022535159A JP 7441951 B2 JP7441951 B2 JP 7441951B2
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- 150000003839 salts Chemical class 0.000 title claims description 48
- 238000004146 energy storage Methods 0.000 title claims description 13
- 238000005338 heat storage Methods 0.000 claims description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000005485 electric heating Methods 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 12
- 230000017525 heat dissipation Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
- G05D23/1934—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces each space being provided with one sensor acting on one or more control means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Seasonings (AREA)
- Furnace Details (AREA)
Description
本発明は、工業生産および民間生産分野に属し、特に、恒温給気可能な溶融塩層状エネルギー貯蔵システムに関する。 The present invention belongs to the field of industrial and civil production, and in particular relates to a molten salt layered energy storage system with constant temperature supply.
近年、エネルギー貯蔵の需要が高まることにより、溶融塩は蓄熱媒体としてますます広く使用されている。溶融塩の作動温度は１５０℃～５５０℃であり、特定のニーズに応じて、中低温の溶融塩または高温の溶融塩を選択してもよい。溶融塩の比熱は約１．４ｋＪ／（ｋｇ・Ｋ）程度で、水の比熱よりはるかに小さいため、蓄熱温度差が大きい。放熱の初期段階では、溶融塩の蓄熱温度が高く、蒸気出口の温度が高すぎる。溶融塩が放熱し続けると、溶融塩の温度が急速に低下し、従って蒸気出口の温度も低下する。特に、放熱後期の温度低下幅が大きすぎるため、蒸気出口の温度が低すぎて、生産要件を満たすことができず、溶融塩の作動温度範囲が圧縮され、蓄熱容量が低下する。 In recent years, due to the increasing demand for energy storage, molten salts have been increasingly used as heat storage media. The operating temperature of the molten salt is 150° C. to 550° C., and depending on the specific needs, a medium-low temperature molten salt or a high temperature molten salt may be selected. The specific heat of molten salt is about 1.4 kJ/(kg·K), which is much smaller than the specific heat of water, so the difference in heat storage temperature is large. At the initial stage of heat dissipation, the heat storage temperature of the molten salt is high, and the temperature of the steam outlet is too high. As the molten salt continues to radiate heat, the temperature of the molten salt rapidly decreases, and therefore the temperature of the steam outlet also decreases. In particular, the temperature drop width in the latter half of heat dissipation is too large, so the temperature at the steam outlet is too low to meet production requirements, the operating temperature range of the molten salt is compressed, and the heat storage capacity is reduced.
本発明の目的は、上記の先行技術に存在する欠点を克服し、蓄熱容量が高く、溶融塩の作動温度範囲が広い特徴を有すると共に、蒸気出口温度の要件を満たす、恒温給気可能な溶融塩層状エネルギー貯蔵システムを提供することである。
上記の目的に達するために、本発明に記載の恒温給気可能な溶融塩層状エネルギー貯蔵システムは、蓄熱槽、ヒーター、給水管、減温水管、スプレー式減温器、蒸気管、循環ポンプおよび電気加熱炉を備える。
蓄熱槽の内部には、上から下に複数の仕切り板が設けられており、うち、各仕切り板には、いずれもオーバーフロー孔が開設されており、ヒーターは、順番に連通された複数の熱交換チューブを備える。うち、各熱交換チューブは、蓄熱槽の下層にある隣接する仕切り板の間に位置し、給水管の出口は２つに分割され、うちの１つはヒーターの入口と連通し、他の１つは、減温水管を介してスプレー式減温器の給水口と連通する。減温水管には第１の調整弁が設けられており、ヒーターの出口は、スプレー式減温器を経て蒸気管と連通し、蓄熱槽の底部出口は、循環ポンプを介して電気加熱炉の入口と連通し、電気加熱炉の出口は、蓄熱槽の頂部入口と連通する。
The object of the present invention is to overcome the drawbacks present in the above-mentioned prior art, to provide a constant-temperature supplyable molten salt, which is characterized by a high heat storage capacity, a wide operating temperature range of the molten salt, and which meets the requirements of the steam outlet temperature. The present invention is to provide a salt layered energy storage system.
In order to reach the above objective, the constant temperature supplyable molten salt layered energy storage system according to the present invention includes a heat storage tank, a heater, a water supply pipe, a detemperature water pipe, a spray desuperheater, a steam pipe, a circulation pump and Equipped with an electric heating furnace.
Inside the heat storage tank, there are multiple partition plates from top to bottom, each of which has overflow holes, and the heaters Equipped with replacement tube. Among them, each heat exchange tube is located between adjacent partition plates in the lower layer of the heat storage tank, and the outlet of the water supply pipe is divided into two, one of which communicates with the inlet of the heater, and the other , communicates with the water inlet of the spray type attemperator through the attemperature water pipe. The attemperature water pipe is provided with a first regulating valve, the outlet of the heater communicates with the steam pipe through a spray attemperator, and the bottom outlet of the heat storage tank communicates with the electric heating furnace through a circulation pump. The outlet of the electric heating furnace communicates with the inlet and the outlet of the electric heating furnace communicates with the top inlet of the heat storage tank.
蓄熱槽の底部出口は、順番に第２の調整弁、循環ポンプおよび循環パイプを介して電気加熱炉の入口と連通する。 The bottom outlet of the heat storage tank communicates with the inlet of the electric heating furnace through a second regulating valve, a circulation pump and a circulation pipe in sequence.
ヒーターの入口には第３の調整弁が設けられている。 A third regulating valve is provided at the inlet of the heater.
本発明は、さらにコントローラーを備え、蓄熱槽の底部には第１の温度計が設けられており、蓄熱槽の頂部には第２の温度計が設けられており、蒸気管には第３の温度計が設けられており、給水管には第４の温度計が設けられており、電気加熱炉の内部には第５の温度計が設けられている。うち、コントローラーが第１の温度計、第２の温度計、第３の温度計、第４の温度計、第５の温度計、電気加熱炉、循環ポンプ、第１の調整弁および第２の調整弁に接続される。 The present invention further includes a controller, a first thermometer is provided at the bottom of the heat storage tank, a second thermometer is provided at the top of the heat storage tank, and a third thermometer is provided in the steam pipe. A thermometer is provided, a fourth thermometer is provided in the water supply pipe, and a fifth thermometer is provided inside the electric heating furnace. Among them, the controller is a first thermometer, a second thermometer, a third thermometer, a fourth thermometer, a fifth thermometer, an electric heating furnace, a circulation pump, a first regulating valve, and a second thermometer. Connected to the regulating valve.
仕切り板にはリブが設けられている。
オーバーフロー孔と蓄熱槽の中心線との間の挟み角は９０°である。
仕切り板の数は８枚である。
本発明は、以下の有益な効果を有する。
本発明に記載の恒温給気可能な溶融塩層状エネルギー貯蔵システムは、特定の操作するときに、蓄熱槽の内部には複数の仕切り板が設けられている。溶融塩の蓄熱槽の内部における自然対流を遮断するために、蓄熱槽の内部を仕切り板により複数の層に分割し、溶融塩を蓄熱槽の内部に層状貯蔵する。仕切り板には、オーバーフロー孔が設けられており、溶融塩がオーバーフロー孔から下向きに流れる。蓄熱槽の底部にはヒーターが配置されており、ヒーターで水を蒸気に加熱して供給する。放熱の初期段階において、蒸気温度が高い場合、減温水を噴射して蒸気を降温させ、蒸気温度が低すぎる場合、循環ポンプを起動して、蓄熱槽の下層の溶融塩を蓄熱槽の頂部に送り込むことによって、高温の溶融塩を層ごとに下方に移動させ、蒸気出口温度の要件を満たし、溶融塩の作動温度範囲が広く、蓄熱容量が大きくなる。
The partition plate is provided with ribs.
The included angle between the overflow hole and the center line of the heat storage tank is 90°.
The number of partition plates is eight.
The present invention has the following beneficial effects.
In the molten salt layered energy storage system capable of supplying constant temperature air according to the present invention, a plurality of partition plates are provided inside the heat storage tank during a specific operation. In order to block natural convection of the molten salt inside the heat storage tank, the inside of the heat storage tank is divided into a plurality of layers by partition plates, and the molten salt is stored in layers inside the heat storage tank. The partition plate is provided with an overflow hole through which the molten salt flows downward. A heater is placed at the bottom of the heat storage tank, which heats water to steam and supplies it. In the initial stage of heat dissipation, if the steam temperature is high, detemperature water is injected to cool the steam, and if the steam temperature is too low, the circulation pump is activated to move the molten salt in the lower layer of the heat storage tank to the top of the heat storage tank. By pumping, the high temperature molten salt moves downward layer by layer, meeting the requirements of steam outlet temperature, widening the working temperature range of molten salt and increasing heat storage capacity.
以下、図面を参照して本発明をさらに詳細に説明する。 Hereinafter, the present invention will be explained in more detail with reference to the drawings.
図１～図２を参照すると、本発明に記載の恒温給気可能な溶融塩層状エネルギー貯蔵システムは、蓄熱槽１、ヒーター７、給水管１２、減温水管１１、スプレー式減温器１０、蒸気管１３、循環ポンプ１６および電気加熱炉１８を備える。蓄熱槽１の内部には、上から下に複数の仕切り板２が設けられている。うち、各仕切り板２には、いずれもオーバーフロー孔３が開設されており、ヒーター７は、順番に連通された複数の熱交換チューブを備える。うち、各熱交換チューブは、蓄熱槽１の下層にある隣接する仕切り板２の間に位置し、給水管１２の出口は２つに分割され、うちの１つはヒーター７の入口と連通し、他の１つは、減温水管１１を介してスプレー式減温器１０の給水口と連通する。減温水管１１には第１の調整弁１４が設けられており、ヒーター７の出口は、スプレー式減温器１０を経て蒸気管１３と連通する。蓄熱槽１の底部出口は、循環ポンプ１６を介して電気加熱炉１８の入口と連通し、電気加熱炉１８の出口は、蓄熱槽１の頂部入口と連通する。 Referring to FIGS. 1 and 2, the molten salt layered energy storage system capable of supplying constant temperature air according to the present invention includes a heat storage tank 1, a heater 7, a water supply pipe 12, a detemperature water pipe 11, a spray desuperheater 10, It is equipped with a steam pipe 13, a circulation pump 16, and an electric heating furnace 18. Inside the heat storage tank 1, a plurality of partition plates 2 are provided from top to bottom. Each of the partition plates 2 has an overflow hole 3, and the heater 7 includes a plurality of heat exchange tubes connected in sequence. Among them, each heat exchange tube is located between adjacent partition plates 2 in the lower layer of the heat storage tank 1, and the outlet of the water supply pipe 12 is divided into two, one of which communicates with the inlet of the heater 7. , and the other one communicates with the water supply port of the spray type attemperator 10 via the attemperature water pipe 11. The deheating water pipe 11 is provided with a first regulating valve 14 , and the outlet of the heater 7 communicates with the steam pipe 13 via a spray type desuperheater 10 . The bottom outlet of the heat storage tank 1 communicates with the inlet of the electric heating furnace 18 via the circulation pump 16, and the outlet of the electric heating furnace 18 communicates with the top inlet of the heat storage tank 1.
蓄熱槽１の底部出口は、順番に第２の調整弁１５、循環ポンプ１６および循環パイプ１７を介して電気加熱炉１８の入口と連通する。ヒーター７の入口には第３の調整弁２０が設けられている。 The bottom outlet of the heat storage tank 1 communicates with the inlet of the electric heating furnace 18 via a second regulating valve 15, a circulation pump 16 and a circulation pipe 17 in this order. A third regulating valve 20 is provided at the inlet of the heater 7.
本発明は、さらにコントローラーを備えており、蓄熱槽１の底部には第１の温度計５が設けられており、蓄熱槽１の頂部には第２の温度計６が設けられており、蒸気管１３には第３の温度計９が設けられており、給水管１２には第４の温度計８が設けられており、電気加熱炉１８の内部には第５の温度計１９が設けられている。うち、コントローラーが第１の温度計５、第２の温度計６、第３の温度計９、第４の温度計８、第５の温度計１９、電気加熱炉１８、循環ポンプ１６、第１の調整弁１４および第２の調整弁１５に接続される。 The present invention further includes a controller, a first thermometer 5 is provided at the bottom of the heat storage tank 1, a second thermometer 6 is provided at the top of the heat storage tank 1, and the steam A third thermometer 9 is provided in the pipe 13, a fourth thermometer 8 is provided in the water supply pipe 12, and a fifth thermometer 19 is provided inside the electric heating furnace 18. ing. Among them, the controller includes a first thermometer 5, a second thermometer 6, a third thermometer 9, a fourth thermometer 8, a fifth thermometer 19, an electric heating furnace 18, a circulation pump 16, and a first thermometer. and a second regulating valve 15.
仕切り板２にはリブ４が設けられている。オーバーフロー孔３と蓄熱槽１の中心線との間の挟み角は９０°である。仕切り板２の数は８枚である。 The partition plate 2 is provided with ribs 4. The included angle between the overflow hole 3 and the center line of the heat storage tank 1 is 90°. The number of partition plates 2 is eight.
熱を貯蔵するとき、電気加熱炉１８の電源をオンにし、循環ポンプ１６は、蓄熱槽１の底部の溶融塩を電気加熱炉１８に送り込み加熱し、その後、蓄熱槽１の頂部を介して蓄熱槽１の内部に送り込むことにより、蓄熱槽１の下層の溶融塩の温度は、予め設定された最低の溶融塩温度に達する。うち、第１の温度計５で蓄熱槽１の下層の溶融塩の温度を検出し、第２の温度計６で蓄熱槽１の頂部の溶融塩の温度を検出する。電気加熱炉１８の加熱温度を制御することによって、蓄熱槽１の頂部の溶融塩の温度は、予め設定された最高溶融塩温度よりも低くなり、同時に、電気加熱炉１８の内部における溶融塩の温度は、溶融塩の沸点温度よりも低くなる。 When storing heat, the power of the electric heating furnace 18 is turned on, and the circulation pump 16 feeds the molten salt at the bottom of the heat storage tank 1 into the electric heating furnace 18 to heat it, and then stores heat through the top of the heat storage tank 1. By feeding the molten salt into the interior of the tank 1, the temperature of the molten salt in the lower layer of the heat storage tank 1 reaches a preset minimum molten salt temperature. The first thermometer 5 detects the temperature of the molten salt in the lower layer of the heat storage tank 1, and the second thermometer 6 detects the temperature of the molten salt at the top of the heat storage tank 1. By controlling the heating temperature of the electric heating furnace 18, the temperature of the molten salt at the top of the heat storage tank 1 becomes lower than the preset maximum molten salt temperature, and at the same time, the temperature of the molten salt inside the electric heating furnace 18 decreases. The temperature will be below the boiling point temperature of the molten salt.
熱を放出するとき、給水管１２から出力される水は、流量第３の調整弁２０を介してヒーター７に入り、蒸気に加熱された後、スプレー式減温器１０および蒸気管１３を経てユーザ側に導かれ、第３の温度計９で蒸気管１３内部の蒸気の温度を検出する。蒸気管１３内部の蒸気の温度が予め設定された最高蒸気温度値よりも高い場合、第１の調整弁１４を開き、給水管１２内部の水をスプレー式減温器１０に噴射することによって、蒸気を降温させる。蒸気管１３内部の蒸気の温度が予め設定された最低蒸気温度よりも低い、または、蓄熱槽１の下層における溶融塩の温度が予め設定された作動温度よりも低い場合、第２の調整弁１５を開き、循環ポンプ１６を起動し、蓄熱槽１の下層にある低温の溶融塩を、循環パイプ１７を介して蓄熱槽１の最上層に送る。蒸気管１３の内部の蒸気温度が予め設定された最低温度以上になると、循環ポンプ１６を停止し、第２の調整弁１５をオフにする。放熱過程において、高温の溶融塩は仕切り板２のオーバーフロー孔３から層ごとに下方に移動し、低温の溶融塩は蓄熱槽１の上層に戻り、放熱過程における溶融塩層の温度場の変化は、図３に示すとおりである。
以上の説明は、本発明の好ましい特定の実施形態のみであり、本発明の保護範囲はこれに限定されない。本技術分野に精通している技術者が、本発明に開示された技術範囲内で、容易に想到できる変更または置換は、全て本発明の保護範囲内に含まれるべきである。したがって、本発明の保護範囲は、特許請求の範囲の保護範囲に準ずるべきである。
When releasing heat, the water output from the water supply pipe 12 enters the heater 7 via the third flow rate regulating valve 20, is heated to steam, and then passes through the spray type attemperator 10 and the steam pipe 13. A third thermometer 9 guided to the user side detects the temperature of the steam inside the steam pipe 13. When the temperature of the steam inside the steam pipe 13 is higher than the preset maximum steam temperature value, the first regulating valve 14 is opened and the water inside the water supply pipe 12 is injected into the spray type attemperator 10. Cool down the steam. When the temperature of the steam inside the steam pipe 13 is lower than the preset minimum steam temperature, or when the temperature of the molten salt in the lower layer of the heat storage tank 1 is lower than the preset operating temperature, the second regulating valve 15 is opened, the circulation pump 16 is started, and the low-temperature molten salt in the lower layer of the heat storage tank 1 is sent to the uppermost layer of the heat storage tank 1 via the circulation pipe 17. When the steam temperature inside the steam pipe 13 reaches a preset minimum temperature or higher, the circulation pump 16 is stopped and the second regulating valve 15 is turned off. During the heat dissipation process, the high temperature molten salt moves downward layer by layer from the overflow hole 3 of the partition plate 2, and the low temperature molten salt returns to the upper layer of the heat storage tank 1, and the change in the temperature field of the molten salt layer during the heat dissipation process is as follows. , as shown in FIG.
The above descriptions are only preferred specific embodiments of the present invention, and the protection scope of the present invention is not limited thereto. Any modification or replacement that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should conform to the protection scope of the claims.
１ 蓄熱槽
２ 仕切り板
３ オーバーフロー孔
４ リブ
５ 第１の温度計
６ 第２の温度計
７ ヒーター
８ 第４の温度計
９ 第３の温度計
１０ スプレー式減温器
１１ 減温水管
１２ 給水管
１３ 蒸気管
１４ 第１の調整弁
１５ 第２の調整弁
１６ 循環ポンプ
１７ 循環パイプ
１８ 電気加熱炉
１９ 第５の温度計
２０ 第３の調整弁
1 Heat storage tank 2 Partition plate 3 Overflow hole 4 Rib 5 First thermometer 6 Second thermometer 7 Heater 8 Fourth thermometer 9 Third thermometer 10 Spray type desuperheater 11 Detemperature water pipe 12 Water supply pipe 13 Steam pipe 14 First regulating valve 15 Second regulating valve 16 Circulating pump 17 Circulating pipe 18 Electric heating furnace 19 Fifth thermometer 20 Third regulating valve
Claims (5)
蓄熱槽（１）、ヒーター（７）、給水管（１２）、減温水管（１１）、スプレー式減温器（１０）、蒸気管（１３）、循環ポンプ（１６）および電気加熱炉（１８）を備え、
蓄熱槽（１）の内部には、上から下に複数の仕切り板（２）が設けられており、各仕切り板（２）には、いずれもオーバーフロー孔（３）が開設されており、ヒーター（７）は、順番に連通された複数の熱交換チューブを備え、各熱交換チューブは、蓄熱槽（１）の下層にある隣接する仕切り板（２）の間に位置し、給水管（１２）の出口は２つに分割され、うちの１つはヒーター（７）の入口と連通し、他の１つは、減温水管（１１）を介してスプレー式減温器（１０）の給水口と連通し、減温水管（１１）には第１の調整弁（１４）が設けられており、ヒーター（７）の出口は、スプレー式減温器（１０）を経て蒸気管（１３）と連通し、蓄熱槽（１）の底部出口は、循環ポンプ（１６）を介して電気加熱炉（１８）の入口と連通し、電気加熱炉（１８）の出口は、蓄熱槽（１）の頂部入口と連通し、
蓄熱槽（１）の底部出口は、順番に第２の調整弁（１５）、循環ポンプ（１６）および循環パイプ（１７）を介して電気加熱炉（１８）の入口と連通し、
ヒーター（７）の入口には第３の調整弁（２０）が設けられている、ことを特徴とする恒温給気可能な溶融塩層状エネルギー貯蔵システム。 A molten salt layered energy storage system capable of supplying constant temperature air,
Heat storage tank (1), heater (7), water supply pipe (12), attemperature water pipe (11), spray type attemperator (10), steam pipe (13), circulation pump (16), and electric heating furnace (18) ),
Inside the heat storage tank (1), a plurality of partition plates (2) are provided from top to bottom, and each partition plate (2) is provided with an overflow hole (3). (7) comprises a plurality of heat exchange tubes connected in order, each heat exchange tube is located between adjacent partition plates (2) in the lower layer of the heat storage tank (1), and each heat exchange tube is located between adjacent partition plates (2) in the lower layer of the heat storage tank (1). ) is divided into two parts, one of which communicates with the inlet of the heater (7), and the other with the water supply of the spray attemperator (10) via the attemperature water pipe (11). A first regulating valve (14) is provided in the attemperature water pipe (11) communicating with the outlet, and the outlet of the heater (7) is connected to the steam pipe (13) via the spray attemperator (10). The bottom outlet of the heat storage tank (1) communicates with the inlet of the electric heating furnace (18) via the circulation pump (16), and the outlet of the electric heating furnace (18) communicates with the bottom outlet of the heat storage tank (1). communicates with the top entrance,
The bottom outlet of the heat storage tank (1) communicates with the inlet of the electric heating furnace (18) through a second regulating valve (15), a circulation pump (16) and a circulation pipe (17) in order;
A molten salt layered energy storage system capable of supplying constant temperature air, characterized in that a third regulating valve (20) is provided at the inlet of the heater (7) .
The molten salt layered energy storage system capable of supplying constant temperature air according to claim 1, characterized in that the number of partition plates (2) is eight.
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| CN113280320A (en) * | 2021-06-21 | 2021-08-20 | 西安热工研究院有限公司 | System for greatly improving industrial steam supply reliability based on electric heating heat storage technology |
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