All-vanadium battery electrolyte sampling device

Abstract

The utility model discloses an all-vanadium battery electrolyte sampling device which comprises a shell, a handle is welded at the top of the shell, and a liquid pump is arranged in the shell; according to the utility model, the five-way joint and the plurality of branch pipes are arranged on the liquid pump arranged in the shell, the sampling pipe with scale marks is in threaded connection with the threaded nozzles of the branch pipes, and then the valves arranged on the surfaces of the corresponding branch pipes are opened, so that along with the work of the liquid pump, the liquid inlet pipe extracts the electrolyte of the all-vanadium battery through the sampling needle; compared with the prior art, the hand-held handle and the plurality of branch pipes with the valves are adopted, so that the shell is easy to hold and transfer, the flexible degree of sampling is increased, and the sampling efficiency is improved. And multi-interval and multi-sample collection can be conveniently carried out on the electrolyte, so that the accuracy of a final detection result is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of battery stack detection, in particular to an all-vanadium battery electrolyte sampling device. Background Art

[0002] Liquid flow battery refers to a type of battery in which both the positive and negative active materials are in liquid form. It differs from other electrochemical systems mainly in that the main energy source of the battery is the positive and negative active materials in liquid form rather than solid materials in the general sense. The positive and negative active material solutions are stored in two containers respectively. When working, the active material solutions enter the battery stack through the circulation pump respectively, and the battery reaction occurs, converting chemical energy into electrical energy. At present, all-vanadium liquid flow batteries have great application prospects in the fields of solar energy, wind energy storage, power grid peak regulation, power supply systems in remote areas, and uninterruptible power supplies due to their advantages such as pollution-free, long life, high stability of energy conversion efficiency, and simple maintenance.

[0003] In the prior art, when testing the energy efficiency of all-vanadium liquid flow batteries, it is necessary to extract the electrolyte inside the battery in order to detect the current efficiency, voltage efficiency and energy conversion efficiency of the all-vanadium liquid flow battery. However, the existing sampling devices are often fixed in place, with poor portability, and are difficult to meet the needs of multiple sample sampling of electrolytes in different intervals of the battery, resulting in deviations in the final test results.

[0004] To this end, an all-vanadium battery electrolyte sampling device is proposed, which has the advantages of good portability and convenient multi-interval and multi-sample collection, thereby solving the problems in the above-mentioned background technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an all-vanadium battery electrolyte sampling device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a full-vanadium battery electrolyte sampling device, comprising a shell, a handle welded on the top of the shell, and a liquid pump installed in the shell, the liquid inlet end of the liquid pump is connected with a liquid inlet pipe, and one end of the liquid inlet pipe passes through the shell and is connected with a corrosion-resistant hose, and a sampling needle is installed on one end of the corrosion-resistant hose of the liquid inlet pipe, the liquid outlet end of the liquid pump is connected with a liquid outlet pipe, and one end of the liquid outlet pipe is connected with a five-way joint, multiple surfaces of the five-way joint are connected with branch pipes, and a valve is installed on the surface of each branch pipe, and a threaded nozzle is provided at one end of each branch pipe, a sampling tube is threadedly connected to the threaded nozzle, and an exhaust nozzle is integrally provided on the upper surface of the sampling tube, a fan is fixed to the inner top surface of the shell, and the air outlet of the fan is connected with an air outlet pipe.

[0007] As a further description of the above technical solution: the surface of the air outlet duct is connected to a heating box, and the heating box has a built-in heating wire, a partition is welded to the corresponding branch pipe on the right side inside the shell, and the partition and the space on the right side inside the shell form a heating chamber, one end of the air outlet duct passes through the partition and extends into the heating chamber, and a plurality of air outlet nozzles are provided on the part of the air outlet duct extending to the heating chamber.

[0008] As a further description of the above technical solution: the handle is an L-shaped structure as a whole, and a plurality of arc-shaped protrusions are equidistantly arranged on the inner side of the handle.

[0009] As a further description of the above technical solution: the liquid outlet pipe is connected with the partition through insertion, and a U-shaped portion is provided on the surface of the air outlet pipe corresponding to the liquid outlet pipe.

[0010] As a further description of the above technical solution: the open end of the sampling tube is provided with an internal thread corresponding to the threaded nozzle, and the outer surface of the sampling tube is engraved with scale lines.

[0011] As a further description of the above technical solution: both sides of the partition are bonded with thermal insulation materials, and the thermal insulation materials are glass fiber, asbestos, rock wool or silicate material.

[0012] As a further description of the above technical solution: a mounting seat is arranged at the inner bottom of the shell, and the mounting seat is fixedly connected to the liquid pump by screws.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, a five-way joint and a plurality of branch pipes are arranged on the liquid pump built in the shell, and a sampling tube with scale lines is threadedly connected to the threaded mouth of the branch pipe, and then a valve arranged on the surface of the corresponding branch pipe is opened. As the liquid pump works, the liquid inlet pipe extracts the electrolyte of the all-vanadium battery through the sampling needle and inputs it into the corresponding branch pipe, and then the branch pipe is poured into the sampling tube arranged at the tail end of the branch pipe. Compared with the prior art, a convenient hand-held handle and a plurality of branch pipes with valves are adopted, which are easy to hold and transfer the shell, which not only increases the convenience of sampling, but also facilitates the multi-interval and multi-sample collection of the electrolyte, so as to ensure the accuracy of the final test result. At the same time, a corrosion-resistant hose connected to the sampling needle is arranged on the liquid inlet pipe, which is easy to flexibly adjust the sampling position of the electrolyte, and ensures the effect of electrolyte sampling.

[0015] In the utility model, an electrolyte sampling heating mechanism composed of a fan, a heating box, a heating wire, an air outlet pipe, a partition and an air outlet nozzle is arranged inside a shell, and a heating chamber is formed in the installation area of ​​the shell corresponding to the plurality of branch pipes through the arrangement of the partition. By starting the fan and the electric heating wire built into the heating box, the air blown into the heating box by the fan is heated by the electric heating wire, and then the hot air is dispersed and introduced into the heating chamber of the shell under the action of the plurality of air outlet nozzles of the air outlet pipe, so that the hot air heats the plurality of branch pipes, thereby preventing the crystallization of the electrolyte caused by cold weather, which is beneficial to the sampling of the electrolyte. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an all-vanadium battery electrolyte sampling device of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a liquid outlet pipe and a branch pipe of an all-vanadium battery electrolyte sampling device of the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the partition structure of an all-vanadium battery electrolyte sampling device.

[0019] Legend:

[0020] 1. Shell; 2. Liquid pump; 3. Handle; 4. Fan; 5. Liquid inlet pipe; 6. Corrosion-resistant hose; 7. Sampling needle; 8. Liquid outlet pipe; 9. Five-way joint; 10. Branch pipe; 11. Valve; 12. Threaded nozzle; 13. Heating box; 14. Heating wire; 15. Air outlet pipe; 16. Partition; 17. Sampling tube; 18. Exhaust nozzle; 19. Air outlet nozzle; 20. U-shaped part. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] According to an embodiment of the utility model, an all-vanadium battery electrolyte sampling device is provided.

[0023] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3As shown, according to an embodiment of the utility model, an all-vanadium battery electrolyte sampling device includes a shell 1, a handle 3 is welded on the top of the shell 1, and a liquid pump 2 is installed inside the shell 1, the liquid inlet end of the liquid pump 2 is connected with a liquid inlet pipe 5, and one end of the liquid inlet pipe 5 passes through the shell 1 and is connected with a corrosion-resistant hose 6, and one end of the corrosion-resistant hose 6 of the liquid inlet pipe 5 is sleeved with a sampling needle 7, the liquid outlet end of the liquid pump 2 is connected with a liquid outlet pipe 8, and one end of the liquid outlet pipe 8 is connected with a five-way joint 9, multiple surfaces of the five-way joint 9 are connected with branch pipes 10, and a valve 11 is installed on the surface of each branch pipe 10, and a threaded nozzle 12 is provided at one end of each branch pipe 10, a sampling pipe 17 is threadedly connected to the threaded nozzle 12, and an exhaust nozzle is integrally provided on the upper surface of the sampling pipe 17. 18. A fan 4 is fixed on the top surface of the inner side of the shell 1, and the air outlet of the fan 4 is connected to an air outlet pipe 15. In order to increase the portability of the device, only a liquid pump 2 and a heating mechanism for the branch pipe 10 are installed inside the shell 1, and the components are reduced to the greatest extent, so that it has the advantages of being light and portable. In order to facilitate the extraction of electrolyte, the sampling needle 7 is composed of a socket joint and a metal needle on its top. The control method of the fan 4 and the liquid pump 2 of the utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply belong to the common knowledge in the field, and the utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and wiring arrangement in detail. In order to facilitate power supply, the shell 1 is equipped with power lines corresponding to the fan 4 and the liquid pump 2;

[0024] In one embodiment, the surface of the air outlet duct 15 is connected to a heating box 13, and the heating box 13 is equipped with a heating wire 14. A partition 16 is welded to the corresponding branch pipe 10 on the right side inside the shell 1, and the partition 16 and the space on the right side inside the shell 1 form a heating chamber. One end of the air outlet duct 15 passes through the partition 16 and extends into the heating chamber, and a portion of the air outlet duct 15 extending to the heating chamber is provided with a plurality of air outlet nozzles 19. By starting the fan 4 and the heating wire 14 built into the heating box 13, the air blown into the heating box 13 by the fan 4 is heated by the heating wire 14, and then the hot air is dispersed and introduced into the heating chamber of the shell 1 under the action of the plurality of air outlet nozzles 19 of the air outlet duct 15, so that the hot air heats the plurality of branch pipes 10 to prevent the electrolyte from crystallizing due to cold weather.

[0025] In one embodiment, the handle 3 is L-shaped as a whole, and a plurality of arc-shaped protrusions are equidistantly arranged on the inner side of the handle 3. The arrangement of the plurality of arc-shaped protrusions increases the reliability and comfort of holding the handle 3 and facilitates the transfer of the shell 1.

[0026] In one embodiment, the liquid outlet pipe 8 is connected with the partition 16 through insertion, and a U-shaped portion 20 is provided on the surface of the air outlet pipe 15 corresponding to the liquid outlet pipe 8 . By providing the U-shaped portion 20 , the liquid outlet pipe 8 is given way.

[0027] In one embodiment, the open end of the sampling tube 17 is provided with an internal thread corresponding to the threaded nozzle 12, and the outer surface of the sampling tube 17 is engraved with scale lines. The setting of the threaded sampling tube 17 facilitates the disassembly and assembly of the sampling tube 17, and facilitates the transfer and detection of the extracted electrolyte.

[0028] In one embodiment, both sides of the partition 16 are bonded with insulation materials, and the insulation materials are glass fiber, asbestos, rock wool or silicate materials. Through the setting of the partition 16, heat can be blocked to the greatest extent, reducing damage to the liquid pump 2 during the heating stage.

[0029] In one embodiment, a mounting seat is provided at the inner bottom of the shell 1, and the mounting seat is fixedly connected to the liquid pump 2 by screws. Through the setting of the mounting seat, a designated installation space is provided for the liquid pump 2, which is easy to assemble and arrange other components.

[0030] Working principle:

[0031] When in use, firstly, turn on the power of the liquid pump 2, then hold the corrosion-resistant hose 6, extend the sampling needle 7 of the corrosion-resistant hose 6 into the shell 1 of the all-vanadium battery, and thread the sampling tube 17 with scale lines to the threaded nozzle 12 of the branch pipe 10, and then open the valve 11 set on the surface of the corresponding branch pipe 10. As the liquid pump 2 works, the liquid inlet pipe 5 extracts the electrolyte of the all-vanadium battery through the sampling needle 7 and inputs it into the corresponding branch pipe 10, and then the branch pipe 10 is perfused into the branch pipe 10 at the tail end thereof. The sampling tube 17 of the branch tubes 10 is then sampled with the above steps. In this process, the fan 4 and the heating wire 14 built into the heating box 13 are started to work, so that the air blown into the heating box 13 by the fan 4 is heated by the heating wire 14. Then, the hot air is dispersed and introduced into the heating chamber of the shell 1 under the action of the several air outlet nozzles 19 of the air outlet pipe 15, so that the hot air heats the branch tubes 10 to prevent the electrolyte from crystallizing due to cold weather.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An all-vanadium battery electrolyte sampling device, comprising a housing (1), characterized in that: A handle (3) is welded to the top of the shell (1), and a liquid pump (2) is installed inside the shell (1); the liquid inlet end of the liquid pump (2) is connected to a liquid inlet pipe (5), and one end of the liquid inlet pipe (5) passes through the shell (1) and is connected to a corrosion-resistant hose (6), and one end of the corrosion-resistant hose (6) of the liquid inlet pipe (5) is sleeved with a sampling needle (7); the liquid outlet end of the liquid pump (2) is connected to a liquid outlet pipe (8), and one end of the liquid outlet pipe (8) is connected to a five-way joint (9), and the five-way joint Multiple surfaces of the head (9) are connected to branch pipes (10), and a valve (11) is installed on the surface of each branch pipe (10), and a threaded nozzle (12) is provided at one end of each branch pipe (10), a sampling pipe (17) is threadedly connected to the threaded nozzle (12), and an exhaust nozzle (18) is integrally provided on the upper surface of the sampling pipe (17), a fan (4) is fixed to the inner top surface of the shell (1), and an outlet pipe (15) is connected to the air outlet of the fan (4).

2. The all-vanadium battery electrolyte sampling device according to claim 1, characterized in that: The surface of the air outlet pipe (15) is connected to a heating box (13), and the heating box (13) is internally installed with an electric heating wire (14); a partition (16) is welded to the corresponding branch pipe (10) on the right side inside the shell (1), and the partition (16) and the space on the right side inside the shell (1) form a heating chamber; one end of the air outlet pipe (15) passes through the partition (16) and extends into the heating chamber, and a portion of the air outlet pipe (15) extending into the heating chamber is provided with a plurality of air outlet nozzles (19).

3. The all-vanadium battery electrolyte sampling device according to claim 1, characterized in that: The handle (3) is in an L-shaped structure as a whole, and a plurality of arc-shaped protrusions are arranged at equal intervals on the inner side surface of the handle (3).

4. The all-vanadium battery electrolyte sampling device according to claim 2, characterized in that: The liquid outlet pipe (8) is connected to the partition plate (16) by insertion, and a U-shaped portion (20) is provided on the surface of the air outlet pipe (15) corresponding to the liquid outlet pipe (8).

5. The all-vanadium battery electrolyte sampling device according to claim 1, characterized in that: The open end of the sampling tube (17) is provided with an internal thread corresponding to the threaded nozzle (12), and the outer surface of the sampling tube (17) is engraved with scale lines.

6. The all-vanadium battery electrolyte sampling device according to claim 2, characterized in that: Both sides of the partition (16) are bonded with heat insulation material, and the heat insulation material is glass fiber, asbestos, rock wool or silicate material.

7. The all-vanadium battery electrolyte sampling device according to claim 1, characterized in that: A mounting seat is provided at the inner bottom of the housing (1), and the mounting seat is fixedly connected to the liquid pump (2) via screws.

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