Electrolyte energy-saving conveying control device and method and flow battery system
A technology of transportation control and liquid flow battery stack, which is applied in the direction of electrolyte flow processing, fuel cells, fuel cell additives, etc. It can solve the problems that the positive and negative inlet differential pressure of the battery stack cannot be guaranteed, and the flow control is not direct enough. Effects of flow control and battery protection issues, reduction of power consumption, and solution to battery protection issues
Active Publication Date: 2020-12-29
北京和瑞储能科技有限公司
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However, this method only judges whether the load meets the requirements by means of variable frequency output power, which is not direct enough as a flow control, and how to control the differential pressure at the positive and negative inlets of the battery stack is not clearly stated in this method, that is, it cannot guarantee that the battery Stack positive and negative inlet differential pressure
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[0028] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.
[0029] In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicatin...
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The invention provides an electrolyte energy-saving conveying control device and method and a flow battery system. The control device comprises a positive electrode pump, a negative electrode pump, afirst flow meter, a second flow meter and a controller; the first flow meter is arranged on an outlet pipeline of the positive electrode pump and is used for detecting the flow of a positive electrodeelectrolyte output by the positive electrode pump; the second flow meter is arranged on an outlet pipeline of the negative electrode pump and is used for detecting the flow of a negative electrode electrolyte output by the negative electrode pump; the controller is connected with the positive electrode pump, the negative electrode pump, the first flow meter and the second flow meter and is used for controlling the rotating speed of the positive electrode pump according to the flow of the positive electrode electrolyte so as to adjust the flow of the positive electrode electrolyte output by the positive electrode pump and controlling the rotating speed of the negative electrode pump according to the flow of the negative electrode electrolyte output by the negative electrode pump so as to adjust the flow of the negative electrode electrolyte output by the negative electrode pump. According to the invention, the power consumption of the flow battery system can be saved on the premise ofensuring reliable control of the flow and the pressure of the electrolytes.
Description
technical field [0001] The present invention relates to the technical field of flow batteries, and in particular, to an electrolyte energy-saving conveying control device, a method, and a flow battery system. Background technique [0002] At present, most of the flow battery systems adopt the method of setting a control valve at the pump outlet to adjust the flow rate of the electrolyte. Although this control method can accurately control the flow rate, the problem is that the efficiency of the pump is reduced, and the electricity In addition, due to the characteristics of the structure of the flow battery itself, there are strict requirements on the differential pressure between the positive and negative electrodes of the battery. Therefore, it is necessary to save the power consumption of the flow battery system under the premise of ensuring the reliable control of the electrolyte flow and pressure. [0003] At present, a method and system for energy efficiency control of...
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IPC IPC(8): H01M8/04082H01M8/04186H01M8/04276H01M8/0438H01M8/04746H01M8/18H01M8/2455
CPCH01M8/04186H01M8/04201H01M8/04283H01M8/0438H01M8/04432H01M8/04753H01M8/188H01M8/2455Y02E60/50
Inventor 赵钊江小松刘雨佳杨林王含
Owner 北京和瑞储能科技有限公司
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