阅读说明：本技术 一种集成散热功能的液流电池端板装置 (Flow battery end plate device integrating heat dissipation function ) 是由 不公告发明人 于 2020-06-09 设计创作，主要内容包括：本发明提供一种集成散热功能的液流电池端板装置,包括液流通道板、散热部件一、散热部件二和连接部件,所述散热部件一和散热部件二焊接在液流通道板的上端,所述连接部件焊接在散热部件一和散热部件二的上端,所述散热部件一和散热部件二之间留有空隙,所述液流通道板设有负极进液口和液流管道,液流管道的一端为正极进液口,液流管道的另一端为正极出液口,液流管道穿过散热部件一和散热部件二。本发明解决了现有集成散热功能的液流电池端板装置和电堆的散热部件消耗功率且体积庞大的问题。(The invention provides a flow battery end plate device with an integrated heat dissipation function, which comprises a flow channel plate, a first heat dissipation part, a second heat dissipation part and a connecting part, wherein the first heat dissipation part and the second heat dissipation part are welded at the upper end of the flow channel plate, the connecting part is welded at the upper ends of the first heat dissipation part and the second heat dissipation part, a gap is reserved between the first heat dissipation part and the second heat dissipation part, the flow channel plate is provided with a negative liquid inlet and a flow pipeline, one end of the flow pipeline is a positive liquid inlet, the other end of the flow pipeline is a positive liquid outlet, and the flow pipeline penetrates through the first heat dissipation part and the second heat dissipation part. The invention solves the problems that the existing end plate device of the flow battery integrating the heat dissipation function and the heat dissipation part of the electric pile consume power and have large volume.)

1. The utility model provides an integrated heat dissipation function's flow battery end plate device, its characterized in that, includes flow channel plate (1), heat dissipation part (2) one, heat dissipation part two (3) and adapting unit (4), heat dissipation part (2) and heat dissipation part two (3) welding are in the upper end of flow channel plate (1), the adapting unit welds in the upper end of heat dissipation part (2) and heat dissipation part two (3), leave the space between heat dissipation part (2) and heat dissipation part two (3), flow channel plate (1) is equipped with negative pole inlet (5) and flow pipeline (6), and the one end of flow pipeline (6) is anodal inlet (7), and the other end of flow pipeline (6) is anodal liquid outlet (8), and flow pipeline (6) pass heat dissipation part one (2) and heat dissipation part two (3).

2. A flow battery end plate device with integrated heat dissipation function according to claim 1, wherein the flow conduit (6) is of a reciprocating and tortuous structure.

3. A flow battery end plate device with integrated heat dissipation function according to claim 1, wherein the flow conduit (6) is of a clip shape.

4. The heat dissipation function-integrated end plate device for the flow battery as claimed in claim 1, wherein the flow channel plate (1), the first heat dissipation part (2), the second heat dissipation part (3) and the connecting parts (4) are made of a heat conductive material.

5. A flow battery stack, comprising an end plate (9) and a steel end plate (10) arranged at the lower end of the end plate (9), wherein the end plate (9) is any one of the flow battery end plate devices with integrated heat dissipation function in claims 1-4.

Technical Field

The invention relates to a flow battery, in particular to a flow battery end plate device with an integrated heat dissipation function and a galvanic pile formed by the same.

Background

The method is characterized in that the installed capacity of 3297 ten thousand kilowatts is newly added to wind power in China in 2015 according to data from the national energy agency, and the history is newly created; the wind power accumulated grid-connected installed capacity reaches 1.29 hundred million kilowatts and accounts for 8.6 percent of the total installed capacity of the power generation. However, the situation of wind power abandon and limit is aggravated correspondingly. In 2015, the annual wind power abandonment amount is 339 hundred million kilowatt hours, the annual wind power abandonment amount is increased by 213 hundred million kilowatt hours on the same scale, the average wind abandonment rate is 15 percent, and the annual wind abandonment amount is increased by 7 percent on the same scale. In 2015, a photovoltaic installed capacity 1513 ten thousand kilowatts and a photovoltaic power generation accumulated installed capacity 4318 ten thousand kilowatts are newly added, so that the country with the largest global photovoltaic power generation installed capacity is formed. The average number of hours of use throughout the country is 1133 hours, and the average light abandoning rate is 12.62%. The severe light abandoning phenomenon appears in northwest areas, wherein the average utilization hours of Gansu all the year is 1061 hours, and the light abandoning rate reaches 31 percent; the average hours of utilization of Xinjiang all the year is 1042 hours, and the light abandoning rate reaches 26 percent.

The wind and light are abandoned, the industrial predicament is broken through, and the energy storage technology undoubtedly plays an important role. The general belief is that energy storage has multiple purposes, and is a necessary means for solving the problems of discontinuous, unstable and uncontrollable power generation of renewable energy sources, realizing tracking planned power generation and realizing safe and stable power supply.

The flow battery, especially the all-vanadium redox flow battery (referred to as vanadium battery, VRB for short), is a novel high-efficiency, large-capacity energy storage battery, has a long service life and high safety, has been successfully demonstrated to be applied to the electric power smooth output of a wind power plant at present, and has a wide application space in the future in wide new energy fields, such as wind power generation, photovoltaic power generation, smart grid and the like.

As an energy storage battery with high efficiency and large capacity, the energy efficiency is more than 90 percent. Due to the internal resistance of the battery, the remaining 10% of the energy is converted into heat and consumed. The vanadium redox battery system is a closed system, and the liquid storage tank and the pipeline are both made of resin materials and are poor thermal conductors. Along with the increase of the cycle number of the system, the temperature in the battery gradually rises, and when the temperature rises to a certain temperature, vanadium pentoxide precipitates are easily separated from pentavalent vanadium in the battery anode liquid, the separated precipitates block a flow channel, carbon felt fibers are coated, and the performance of the pile is deteriorated until the pile is scrapped.

It is common practice for a flow battery system to dissipate heat by connecting a heat exchanger in parallel to the flow line. Although the heat dissipation problem of the flow battery system can be solved by connecting a heat exchanger in parallel, the heat exchanger needs to consume power, so that the energy efficiency of the whole flow battery system is reduced. In addition, the heat exchangers connected in parallel are large in size due to concentrated heat dissipation.

Disclosure of Invention

The invention aims to provide a flow battery end plate device with an integrated heat dissipation function and a galvanic pile formed by the same, and aims to solve the problems that the existing flow battery end plate device with the integrated heat dissipation function and heat dissipation parts of the galvanic pile consume power and are large in size.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides an integrated heat dissipation function's flow battery end plate device, includes flow channel plate, heat dissipation part one, heat dissipation part two and adapting unit, heat dissipation part one and heat dissipation part two weld in the upper end of flow channel plate, adapting unit welds the upper end at heat dissipation part one and heat dissipation part two, leave the space between heat dissipation part one and the heat dissipation part two, flow channel plate is equipped with negative pole inlet and flow pipeline, and the one end of flow pipeline is anodal inlet, and the other end of flow pipeline is anodal liquid outlet, and flow pipeline passes heat dissipation part one and heat dissipation part two.

Further, the liquid flow pipeline is in a reciprocating and zigzag structure.

Further, the liquid flow pipeline is of a loop type.

Further, the flow channel plate, the first heat dissipation part, the second heat dissipation part and the connecting part are made of heat conducting materials.

The flow battery pile comprises an end plate and a steel end plate arranged at the lower end of the end plate, wherein the end plate is any one of the flow battery end plate devices with the integrated heat dissipation function.

The invention has the beneficial effects that:

when the electrolyte flows in from the positive electrode liquid inlet, the liquid temperature is transferred to the liquid flow channel plate through the liquid flow pipeline. The flow channel is multi-bent, so that the flow distance of the electrolyte on the flow channel plate is increased, the contact time of the electrolyte and the flow channel plate is prolonged, the heat of the electrolyte can be sufficiently transferred to the flow channel plate, and the heat exchange efficiency is improved.

After the heat of the electrolyte is transferred to the flow channel plate, the flow channel plate needs to dissipate or transfer the heat in time, so that the heat can be continuously transferred with the electrolyte. And a first heat dissipation part and a second heat dissipation part with proper gaps are welded on the flow channel plate. Therefore, after the heat of the electrolyte is transferred to the flow channel plate, the heat can be immediately transferred to the first heat dissipation part and the second heat dissipation part by the flow channel plate. The first heat dissipation part and the second heat dissipation part radiate heat to air and can transmit the heat to the connecting part, and the connecting part transmits the heat to the steel end plate through contact with the steel end plate of the battery. The heat is transmitted layer by layer to radiate the heat of the electrolyte, thereby achieving the purpose of reducing the temperature of the electrolyte.

The first heat dissipation part and the second heat dissipation part have two functions in the invention: one is for heat dissipation and the other is for support.

The connecting member also serves two purposes in the present invention: one is to transfer heat to the steel end plate, and the other is to connect the first heat dissipation part and the second heat dissipation part, so that the first heat dissipation part and the second heat dissipation part keep proper stability. When the liquid flow galvanic pile is locked by the screw, the first heat dissipation part and the second heat dissipation part are stressed uniformly and do not deform.

Drawings

FIG. 1 is a cross-sectional view of a preferred embodiment 1 of the present invention;

FIG. 2 is a front view of the preferred embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of an alternative embodiment 2 of the present invention.

The symbols in the drawings illustrate that: the liquid flow channel comprises a liquid flow channel plate 1, a first heat dissipation part 2, a second heat dissipation part 3, a connecting part 4, a negative electrode liquid inlet 5, a liquid flow pipeline 6, a positive electrode liquid inlet 7, a positive electrode liquid outlet 8, an end plate 9 and a steel end plate 10.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims. See fig. 1, 2 and 3.

Example 1

The utility model provides an integrated heat dissipation function's end plate device of flow battery, includes flow channel plate 1, heat dissipation part one 2, heat dissipation part two 3 and adapting unit 4, heat dissipation part one 2 and heat dissipation part two 3 welding are in flow channel plate 1's upper end, the adapting unit welding is in heat dissipation part one 2 and heat dissipation part two 3's upper end, leave the space between heat dissipation part one 2 and the heat dissipation part two 3, flow channel plate 1 is equipped with negative pole inlet 5 and flow pipeline 6, and the one end of flow pipeline 6 is anodal inlet 7, and the other end of flow pipeline 6 is anodal liquid outlet 8, and flow pipeline 6 passes heat dissipation part one 2 and heat dissipation part two 3.

The liquid flow pipeline 6 is of a reciprocating and zigzag structure.

The flow channel plate 1, the first heat dissipation part 2, the second heat dissipation part 3 and the connecting part 4 are made of heat conducting materials.

Example 2

A flow battery pile comprises an end plate 9 and a steel end plate 10 arranged at the lower end of the end plate 9, wherein the end plate 9 is the flow battery end plate device with the integrated heat dissipation function in the embodiment 1.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.