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Off-peak electricity high-temperature heat storage steam power generating system

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Publication number
CN203454877U
Authority
CN
Grant status
Grant
Patent type
Prior art keywords
heat
storage
high
temperature
thermal
Prior art date
Application number
CN 201320312027
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Chinese (zh)
Inventor
章代红
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安徽国电能源设备工程有限公司
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GASES [GHG] EMISSION, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/14Thermal storage
    • Y02E60/142Sensible heat storage
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GASES [GHG] EMISSION, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/14Thermal storage
    • Y02E60/145Latent heat storage

Abstract

The utility model discloses an off-peak electricity high-temperature heat storage steam power generating system. The off-peak electricity high-temperature heat storage steam power generating system includes a thermal storage box. High-temperature thermal-storage bricks or phase-change fuse salt balls are arranged in an inner cavity of the thermal storage box. Side walls of the thermal storage box are provided with an inlet and an outlet. The inlet and the outlet are connected with a heat-conducting medium heating and conveying pipe separately. The heat-conducting medium heating and conveying pipe separately is connected with an electric boiler and a high-temperature circulating pump. High-temperature heat-conducting oil or fuse salt can be heated in the electric boiler and then conveyed to the thermal storage box through the conducting medium heating and conveying pipe. The inlet and the outlet in the side walls of the thermal storage box are also connected with a plate-type heat exchange provided with a cold water inlet and a hot water outlet. Through heat conduction performed by the high-temperature heat-conducting oil or the fuse salt, high-temperature thermal energy is stored in the high-temperature thermal storage bricks or the phase-change fuse salt balls and the high temperature realized through thermal storage can be higher than 300 DEG C. The thermal energy can be released in peak periods of a power grid in the day and high temperature steam produced through heat exchange performed by the heat exchanger can be used for utilization in production processes or for power generation of a steam turbine.

Description

低谷电高温蓄热蒸汽发电系统 Low temperature thermal storage electric steam generating system

技术领域 FIELD

[0001] 本实用新型涉及蓄热发电领域,具体属于低谷电高温蓄热蒸汽发电系统。 [0001] The present invention relates to the field of regenerative power, particularly high-temperature heat storage belonging to the low power steam generation system.

背景技术 Background technique

[0002] 蓄热蒸汽发电系统是将电能转化为蓄热材料热能,蓄热材料再与水进行热交换,把水加热至有压力的热水或蒸汽的一种热力设备.它无需炉膛、烟道和烟囱,也无需储存燃料的场地,极大地减少了常规嫌煤锅炉带来的污染。 [0002] The regenerative steam power generation system converts electrical energy to thermal energy storage material, storage material and then subjected to heat exchange with the water, the water was heated to one kind of thermal equipment of hot water or steam pressure. It requires no furnace, smoke Road and chimney, and without the fuel storage site, greatly reducing the pollution caused by conventional boiler coal too. 现有技术中的蓄热介质的蓄热能力不好,高温蓄热温度低。 Good heat storage capacity of the thermal storage medium in the prior art, high temperature and low temperature heat storage. 可以实现煤改电产品或取代抽水蓄能电站。 Can be achieved coal to electricity or replace the product pumped storage power station.

实用新型内容 SUMMARY

[0003] 本实用新型的目的是提供一种低谷电高温蓄热蒸汽发电系统,通过高温导热油或熔盐导热,将高温热量储存在高温储热砖或相变熔融盐球体,高温蓄热到300°C以上。 [0003] The object of the present invention is to provide a low power high-temperature heat storage system of steam generation, heat conducting oil or molten salt by thermal conductivity, high temperature heat stored in the heat storage brick high temperature molten salt or the phase change sphere, the high temperature heat storage 300 ° C or more. 在白天电力高峰时段释放热量,通过换热器交换产生高温蒸汽以供生产工艺使用或接汽轮机发电。 Releasing heat in the daytime power peak periods, the high-temperature steam generated by the heat exchange process for production use or access of steam turbine power.

[0004] 本实用新型的技术方案如下: [0004] The technical solution of the present invention are as follows:

[0005] 低谷电低谷电高温蓄热蒸汽发电系统,包括有蓄热箱,蓄热箱内腔中间设有高温储热砖或相变熔融盐球体,蓄热箱侧壁上开有进口、出口,进口、出口分别连接有导热介质加热输送管道,导热介质加热输送管道上连接有电锅炉、高温循环泵,高温导热油或熔盐在电锅炉中加热后通过导热介质加热输送管道输入到蓄热箱,蓄热箱侧壁的进口、出口还连接到板式换热器,板式换热器具有冷水进口、蒸汽出口。 [0005] The low temperature low power regenerative electric steam generating system, including an intermediate storage tank, with a high temperature heat storage tank interior heat storage bricks or spheres molten salt phase change, thermal storage tank having an inlet opening and a sidewall, outlet , import, export heat transfer medium are connected to the heating pipes, the heating heat transfer medium conveying pipe is connected to an electric boiler, the high-temperature circulating pump, heat conducting oil or molten salt after heating in the electrically heated boiler feed line is input to the heat transfer medium through the heat accumulator tank, storage tank inlet side wall, the outlet is also connected to a plate heat exchanger, plate heat exchanger having a cold water inlet, a steam outlet.

[0006] 所述的板式换热器的冷水进口上连接有冷水管道,冷水管道上安装有变频控制水栗。 [0006] connected to a cold water pipes, cold water pipes are mounted on the inverter control water chestnut on the cold water inlet of the plate heat exchanger.

[0007] 所述的高温储热砖蓄热温度为300°C以上。 [0007] The high-temperature heat storage brick regenerator temperature is 300 ° C.

[0008] 本实用新型利用夜间的低谷时段的通过电热锅炉将电能加热系统内的高温导热油或熔盐,通过熔盐导热,将高温热量储存在高温储热砖或相变熔融盐球体,高温储热砖蓄热能力是同质量水的30〜50倍(其中熔融盐在350°C时相变比热为85KJ/kg.k),高温蓄热到300°C以上。 [0008] The present invention during the night time low of electric boiler by the heat conducting oil or molten salt is heated in the power system, by a molten salt heat conductivity, high-temperature heat stored in the high temperature phase change heat storage bricks or spheres molten salt, high temperature heat storage brick is 30 ~ 50 times of the same heat storage capacity of the mass of water (wherein the molten salt at 350 ° C the specific heat of the phase change 85KJ / kg.k), the heat storage temperature above 300 ° C. 在白天电力高峰时段释放热量,电热锅炉不加热,通过换热器与冷水进行交换产生高温蒸汽以供生产工艺使用或接汽轮机发电。 Releasing heat in the daytime power peak periods, electric boiler without heating, high-temperature steam is generated by exchanging heat with the cold water for the production process using a turbine to generate electricity or contact.

附图说明 BRIEF DESCRIPTION

[0009] 图1为本实用新型的结构示意图。 [0009] Figure 1 is a schematic view of the structure of the new utility.

具体实施方式 detailed description

[0010] 参见附图,低谷电高温蓄热蒸汽发电系统,包括有蓄热箱1,蓄热箱I内腔中间设有高温储热砖2,蓄热箱I侧壁上开有进口3、出口4,进口3、出口4分别连接有导热介质加热输送管道5,导热介质加热输送管道5上连接有电锅炉6、高温循环泵7,高温导热油或熔盐在电锅炉6中加热后通过导热介质加热输送管道输入到蓄热箱1,蓄热箱I侧壁的进口、出口还连接到板式换热器8,板式换热器8具有冷水进口、热水出口,板式换热器的冷水进口上连接有冷水管道,冷水管道上安装有变频控制水泵9,高温储热砖或相变熔融盐球体蓄热温度为300°C以上。 [0010] Referring to the drawings, the low temperature heat storage steam electric power generating system, comprising a heat storage tank 1, I lumen intermediate storage tank provided with a high temperature heat storage brick 2, 3 is opened on the inlet side wall storage tank I, 4 outlet, inlet 3, outlet 4 are connected to a heating heat transfer medium feed line 5, the thermally conductive medium electrically heated boiler 6 connected to the delivery pipe 5, high-temperature circulating pump 7, heat conducting oil or molten salt 6 heated in the electric boiler by heating the heat transfer medium feed line 1 is input to the storage tank, the storage tank sidewall inlet I, is also connected to the outlet of the plate heat exchanger 8, 8 has a plate heat exchanger cold water inlet, hot water outlet, a cold plate heat exchanger is connected to cold water pipes, cold water pipes are mounted on the inverter control pump 9 on the inlet, the high temperature phase change heat storage bricks or spheres molten salt heat storage temperature of less than 300 ° C.

Claims (3)

1.低谷电高温蓄热蒸汽发电系统,包括有蓄热箱,其特征在于,蓄热箱内腔中间设有高温储热砖或相变熔融盐球体,蓄热箱侧壁上开有进口、出口,进口、出口分别连接有导热介质加热输送管道,导热介质加热输送管道上连接有电锅炉、高温循环泵,高温导热油或熔盐在电锅炉中加热后通过导热介质加热输送管道输入到蓄热箱,蓄热箱侧壁的进口、出口还连接到板式换热器,板式换热器具有冷水进口、蒸汽出口。 1. The high-temperature heat storage of low power steam generation system, comprising a heat storage tank, characterized in that the intermediate chamber is provided with the heat storage tank temperature phase change heat storage bricks or spheres molten salt, the thermal storage tank having an inlet opening side walls, export, import, export heat transfer medium are connected to the heating pipes, the heating heat transfer medium conveying pipe is connected to an electric boiler, the high-temperature circulating pump, heat conducting oil or molten salt in the electrically heated boiler feed line heated by heat transfer medium to the accumulator input heat box, the heat storage tank inlet side wall, the outlet is also connected to a plate heat exchanger, plate heat exchanger having a cold water inlet, a steam outlet.
2.根据权利要求1所述低谷电高温蓄热蒸汽发电系统,其特征在于:所述的板式换热器的冷水进口上连接有冷水管道,冷水管道上安装有变频控制水泵。 The temperature of the heat storage 1 low power steam generation system as claimed in claim, wherein: the cold water pipe is connected, on the cold water pipe is mounted on the inverter control pump cold water inlet of the plate heat exchanger.
3.根据权利要求1所述高温蓄热蒸汽发电系统,其特征在于:所述的高温储热砖蓄热温度为300°C以上。 3. The high-temperature regenerator to the steam generation system 1, characterized in that: said high-temperature heat storage brick regenerator temperature is 300 ° C.
CN 201320312027 2013-05-31 2013-05-31 Off-peak electricity high-temperature heat storage steam power generating system CN203454877U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320312027 CN203454877U (en) 2013-05-31 2013-05-31 Off-peak electricity high-temperature heat storage steam power generating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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CN203454877U true CN203454877U (en) 2014-02-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103292630A (en) * 2013-05-31 2013-09-11 安徽国电能源设备工程有限公司 Off-peak electricity high-temperature heat-storage steam generating system
CN104266160A (en) * 2014-05-23 2015-01-07 深圳市爱能森设备技术有限公司 Valley current steam boiler adopting heat condition oil to transfer heat and method for preparing steam
CN104279545A (en) * 2014-05-23 2015-01-14 深圳市爱能森设备技术有限公司 Valley electricity steam boiler with fused salt heat transfer and heat storage function and method of valley electricity steam boiler for preparing steam

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103292630A (en) * 2013-05-31 2013-09-11 安徽国电能源设备工程有限公司 Off-peak electricity high-temperature heat-storage steam generating system
CN104266160A (en) * 2014-05-23 2015-01-07 深圳市爱能森设备技术有限公司 Valley current steam boiler adopting heat condition oil to transfer heat and method for preparing steam
CN104279545A (en) * 2014-05-23 2015-01-14 深圳市爱能森设备技术有限公司 Valley electricity steam boiler with fused salt heat transfer and heat storage function and method of valley electricity steam boiler for preparing steam

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