Automatic electrolyte sampling device

Abstract

The utility model discloses an automatic electrolyte sampling device, relates to the technical field of flow batteries, and is particularly suitable for timing sampling of electrolyte in a flow battery experiment process. The device controls opening and closing of the electromagnetic valve through the control system in a timing mode, the function of automatic sampling is achieved, and the problems existing in manual sampling are effectively solved. The device mainly comprises a flow battery, an electrolyte container, a liquid outlet pipe, a liquid return pipe, a pump, a liquid taking bottle, a nitrogen pipeline, an electromagnetic valve and a control system. Wherein a tee joint is arranged on the liquid return pipe, and the liquid flow battery is connected with the liquid flow battery and the liquid taking bottle respectively through the liquid return pipe separated from the tee joint; the nitrogen pipeline is also provided with a tee joint, and the nitrogen conveying source is respectively connected with the electrolyte container and the liquid taking bottle through the nitrogen pipeline separated from the tee joint. The control system comprises a microcontroller, a real-time clock module and a relay and is used for controlling opening and closing of the electromagnetic valve in a timing mode and ensuring accuracy and consistency of sampling time. According to the utility model, the sampling precision and efficiency are improved, and the human input is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid flow batteries, in particular to an automatic electrolyte sampling device. Background Art

[0002] As an important energy storage technology, flow batteries are widely used in peak-shaving systems for power plants, large-scale photovoltaic conversion, wind power generation, and power supply systems in remote areas. They can also serve as uninterruptible power supplies or emergency power supplies. With their high energy density, fast response time, and long lifespan, flow batteries are a key technology in modern energy storage.

[0003] During flow battery experiments, regular electrolyte sampling is a crucial task. By measuring the electrolyte's valence state, changes in its chemical state during operation can be effectively monitored, thereby assessing battery performance and health. However, most laboratories currently still rely on manual sampling. This method has the following drawbacks:

[0004] Inaccurate sampling time: Due to the long sampling cycle, experimenters may easily miss the scheduled sampling time due to negligence or other reasons, resulting in inconsistent sampling time points, affecting the accuracy and reliability of the data.

[0005] Inconvenient operation: Manual sampling requires experimenters to frequently enter the laboratory to operate, which not only increases the workload but also may introduce errors due to human factors. Utility Model Content

[0006] To address these shortcomings, the present invention provides an automatic electrolyte sampling device for periodic electrolyte sampling during flow battery experiments. This device uses a control system to periodically control the opening and closing of a solenoid valve, achieving automatic sampling and effectively resolving the issues inherent in manual sampling.

[0007] The utility model is realized through the following technical solutions: an automatic electrolyte sampling device, characterized in that it comprises a liquid flow battery, an electrolyte container, a liquid outlet pipe and a liquid return pipe connected between the liquid flow battery and the electrolyte container, a pump arranged on the liquid outlet pipe, a liquid collection bottle, a nitrogen pipeline connected to a nitrogen delivery source, a solenoid valve, and a control system for controlling the solenoid valve; the liquid return pipe is provided with a tee, and the liquid return pipe branched from the liquid flow battery through the tee is connected to the liquid flow battery and the liquid collection bottle respectively; the solenoid valve is provided on the liquid return pipe between the liquid collection bottle and the tee; the nitrogen pipeline is provided with a tee, and the nitrogen pipeline branched from the nitrogen delivery source through the tee is connected to the electrolyte container and the liquid collection bottle respectively; bottle caps are provided on the top of the electrolyte container and the liquid collection bottle, and the nitrogen pipeline, the liquid return pipe, and the liquid outlet pipe are respectively connected to their corresponding electrolyte containers or liquid collection bottles through the bottle caps.

[0008] Furthermore, the control system includes a microcontroller, a real-time clock module and a relay.

[0009] Compared with the prior art, the present invention has the following advantages and features:

[0010] Improve sampling accuracy: Timing control is achieved through the real-time clock module and microcontroller to ensure the accuracy and consistency of sampling time.

[0011] Improve work efficiency: Automated operation reduces manpower input and operation time, and is suitable for long-term experiments.

[0012] Reduce environmental pollution: Nitrogen protection keeps the system airtight, prevents external impurities from entering, and ensures the purity of the electrolyte.

[0013] Enhanced convenience of data processing: Automatic sampling simplifies the data processing process and reduces human errors.

[0014] Improve experimental safety: reduce the chances of experimenters directly contacting the electrolyte and reduce operational risks.

[0015] Adaptable to various application scenarios: Sampling time and frequency can be adjusted according to different experimental requirements, with a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0017] The main parts are shown in the figure as follows: 1. Liquid flow battery; 2. Electrolyte container; 3. Liquid return pipe; 4. Liquid outlet pipe; 5. Pump; 6. Solenoid valve; 7. Liquid collection bottle; 8. Control system; 9. Nitrogen pipeline.

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The other drawings obtained are all within the scope of protection required by the present invention. DETAILED DESCRIPTION

[0019] The following combination Figure 1 , the contents of the utility model are described in detail through specific embodiments. Example

[0020] The automatic electrolyte sampling device includes a liquid flow battery 1, an electrolyte container 2, a liquid outlet pipe 4 and a liquid return pipe 3 connected between the liquid flow battery and the electrolyte container, a pump 5 arranged on the liquid outlet pipe, a liquid collection bottle 7, a nitrogen pipeline 9 connected to a nitrogen delivery source, a solenoid valve, and a control system 8 for controlling the solenoid valve; the liquid return pipe is provided with a tee, and the liquid return pipe branched from the liquid flow battery through the tee is respectively connected to the liquid flow battery and the liquid collection bottle; the solenoid valve is provided on the liquid return pipe between the liquid collection bottle and the tee; the nitrogen pipeline is provided with a tee, and the nitrogen pipeline branched from the nitrogen delivery source through the tee is respectively connected to the electrolyte container and the liquid collection bottle; bottle caps are provided on the top of the electrolyte container and the liquid collection bottle, and the nitrogen pipeline, the liquid return pipe, and the liquid outlet pipe are respectively connected to their corresponding electrolyte containers or liquid collection bottles through the bottle caps.

[0021] The control system includes a microcontroller, a real-time clock module and a relay; the real-time clock module and the relay are connected to the microcontroller through a signal line, and the relay is connected to the solenoid valve through the signal line.

[0022] Flow battery: The primary device for storing and releasing electrical energy. Electrolyte container: A container for storing electrolyte. Outlet and return pipes: Connect the flow battery and electrolyte container, circulating the electrolyte. Pump: Installed on the outlet pipe, it drives the electrolyte between the flow battery and the electrolyte container. Sample bottle: Collects electrolyte samples removed from the flow battery. Nitrogen line: Connected to a nitrogen supply source, it delivers nitrogen to the electrolyte container and sample bottle, maintaining an inert atmosphere within the system and preventing electrolyte oxidation. Solenoid valve: Installed on the return pipe between the sample bottle and the T-junction, it controls the flow of electrolyte into the sample bottle. Control system: Comprised of a microcontroller, a real-time clock module, and relays, the control system is responsible for timing the opening and closing of the solenoid valve. The microcontroller (MCU) receives clock signals and controls the relays, thereby controlling the opening and closing of the solenoid valve. The real-time clock module (RTC) provides an accurate time signal to ensure the accuracy of sampling time.

[0023] Relay: Controls the opening and closing of the solenoid valve according to the instructions of the microcontroller.

[0024] Working principle of the utility model

[0025] Initial state: The solenoid valve is in the closed state. Under the action of the pump, the electrolyte flows from the electrolyte container into the flow battery through the liquid outlet pipe, and returns to the electrolyte container through the liquid return pipe after the reaction.

[0026] Sampling start: When the preset sampling time is reached, the real-time clock module sends a signal to the microcontroller.

[0027] The solenoid valve is opened: the microcontroller controls the relay to operate, the relay opens the solenoid valve, and the electrolyte enters the liquid collection bottle through the return pipe.

[0028] End of sampling: After the preset sampling time, the microcontroller controls the relay to operate again, and the relay closes the solenoid valve and stops sampling.

[0029] Nitrogen protection: During the entire sampling process, nitrogen is continuously delivered to the electrolyte container and liquid sampling bottle through the nitrogen pipeline to maintain an inert atmosphere in the system and prevent electrolyte oxidation.

[0030] Parameter settings

[0031] Write a program to initialize the RTC module and set the current time. Set a timer task so that when the preset time is reached, the microcontroller controls the relay to trigger the sampling action.

[0032] Sampling time interval: can be set according to experimental requirements, such as sampling once every hour.

[0033] Sampling duration: can be set according to the required sample volume, for example, each sampling lasts 10 seconds.

[0034] Through the above structure and working principle, the utility model provides an efficient and accurate automatic electrolyte sampling device, which effectively solves the problems existing in manual sampling and improves the reliability and accuracy of experimental data.

Claims

1. An automatic electrolyte sampling device, characterized in that: The invention comprises a liquid flow battery, an electrolyte container, a liquid outlet pipe and a liquid return pipe connected between the liquid flow battery and the electrolyte container, a pump arranged on the liquid outlet pipe, a liquid collection bottle, a nitrogen pipeline connected to a nitrogen delivery source, a solenoid valve, and a control system for controlling the solenoid valve; the liquid return pipe is provided with a tee, and the liquid return pipe branched from the liquid flow battery through the tee is connected to the liquid flow battery and the liquid collection bottle respectively; the solenoid valve is provided on the liquid return pipe between the liquid collection bottle and the tee; the nitrogen pipeline is provided with a tee, and the nitrogen pipeline branched from the nitrogen delivery source through the tee is connected to the electrolyte container and the liquid collection bottle respectively; bottle caps are provided on the top of the electrolyte container and the liquid collection bottle, and the nitrogen pipeline, liquid return pipe, and liquid outlet pipe are connected to their corresponding electrolyte containers or liquid collection bottles respectively through the bottle caps.

2. The automatic electrolyte sampling device according to claim 1, characterized in that: The control system includes a microcontroller, a real-time clock module and a relay.

Images