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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
fuse salt
thermal storage
electricity high
storage steam
heat
Prior art date
Application number
CN 201320312027
Other languages
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
    • Y02E10Energy generation through renewable energy sources
    • 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
    • Y02E10Energy generation through renewable energy sources
    • 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 generation system

技术领域 TECHNICAL 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 invention relates to the field of regenerative power generation, particularly belonging to low power steam generation high-temperature heat storage 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] Regenerative steam generation system converts electrical energy into thermal energy storage material, storage material and then with water, heat exchange, the water is heated to one kind of thermal equipment pressure hot water or steam. It requires no furnace, smoke Road and chimneys, and without fuel storage site, greatly reducing the conventional boiler pollution caused by 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。 Heat storage capacity of the thermal storage medium in the prior art is not good, low temperature regenerator temperature. 可以实现煤改电产品或取代抽水蓄能电站。 Can replace coal to electricity or product Pumped Storage Power Station.

实用新型内容 Utility Model Content

[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 utility model is intended to provide a low power high-temperature heat storage steam generation systems, high temperature thermal oil or molten salt thermal conductivity, high-temperature heat stored in the heat storage brick or high temperature molten salt phase transition sphere, to a high temperature heat storage above 300 ° C. 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。 In the daytime peak hours of power release heat exchange to produce high temperature steam for production processes using a turbine to generate electricity or access through a heat exchanger.

[0004] 本实用新型的技术方案如下: [0004] The utility model technical solution 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] low power low power high-temperature heat storage steam generation system comprising an intermediate storage tank, heat storage tank temperature storage chamber with hot molten salt bricks or phase transition sphere, has opened a storage tank on the side wall of imports and exports imports and exports were connected with a heat medium heat pipes, thermal heat transport medium is connected to the electric boiler pipe, high-temperature circulating pump, heat conducting oil or molten salt heated in the electric boiler heating pipes input to the accumulator via a heat transfer medium boxes, heat storage tank sidewall import and export is also connected to a plate heat exchanger, plate heat exchanger having a cold water inlet, 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 the cold water pipe mounted frequency control water chestnut on the cold water pipe on the cold water of the imports 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 of 300 ° C or more.

[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 utility model is the use of night-time low by the electric boiler will heat conducting oil or molten salt energy heating system by molten salt thermal conductivity, high-temperature heat stored in the heat storage brick or high temperature molten salt phase transition sphere, high temperature heat storage brick regenerative capacity is 30 ~ 50 times with the quality of the water (in which the molten salt at 350 ° C phase change heat of 85KJ / kg.k), high-temperature heat storage to 300 ° C or more. 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。 In the daytime peak hours of power release heat, electric boiler without heating, exchanged high-temperature steam generated by the heat exchanger with cold water for production processes use or access of steam turbine power generation.

附图说明 BRIEF DESCRIPTION

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

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, low power steam generation high temperature heat storage system, including storage tank 1, storage tank I lumen intermediate temperature heat storage brick has 2, on the side wall of the heat storage tank I opened import 3, 4 export, import 3, 4 are connected to the outlet heat medium heat pipes 5, the thermally conductive medium is connected to an electric boiler heating pipe 6 transporting 5, high-temperature circulating pump 7, heat conducting oil or molten salt when heated by electric boiler 6 thermally conductive dielectric heating pipes 1 is input to the storage tank, storage tank I import side wall outlet is also connected to a plate heat exchanger 8, 8 plate heat exchanger having an inlet cold water, hot water outlet, plate heat exchanger cold water cold water pipes connected to the inlet, fitted with frequency control pump 9 on the cold water pipes, high-temperature heat storage brick or phase transition temperature of the molten salt heat storage sphere above 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 low temperature heat storage electric steam generation system, including the heat storage tank, characterized in that the heat storage tank has a chamber intermediate temperature heat storage brick or molten salt phase transition sphere, open on imports of thermal storage tank sidewall, exports, imports and exports were connected to a heat transfer medium heat pipes, thermal heat transport medium is connected to the electric boiler pipe, high-temperature circulating pump, heat conducting oil or molten salt heated in the electric boiler heating pipes input to the accumulator via a heat transfer medium hot box, heat storage tank sidewall import and export is also connected to a plate heat exchanger, plate heat exchanger having an inlet cold water, 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 high temperature of the electric accumulator 1 low steam generation system of claim wherein: the inlet of the cold plate heat exchanger is connected to the cold water pipe, mounted on the pump frequency control cold water pipes.
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。 According to claim 1 the steam generation temperature heat storage system, wherein: said high-temperature heat storage brick regenerator temperature is above 300 ° C.

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
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
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

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