All-vanadium redox flow battery electrolyte sampling and analyzing device

Abstract

The utility model discloses an all-vanadium redox flow battery electrolyte sampling analysis device, relates to sampling device technical field, including sampling box and analysis tank, said sampling box is equipped with a plurality of sample storage chamber inside, the inside of sampling box top is slidingly equipped with connecting rod, one end of connecting rod is fixedly equipped with piston plate, and the other end of connecting rod is equipped with the piston plate. An operation head is fixedly mounted at the other end of the connecting rod, and sample injection pipes are arranged in the bottom of the sampling box and located below the plurality of sample storage cavities; the sampling device has the beneficial effects that through the arrangement of the sample storage cavity, the connecting rod, the piston plate, the operating head, the sample feeding pipe, the liquid feeding one-way valve, the sample discharging pipe, the sample discharging one-way valve, the sliding groove, the sliding rod, the abutting plate, the spring, the synchronous pulling plate and the U-shaped groove, multiple samples can be synchronously and simultaneously sampled according to requirements during sampling; in the subsequent analysis process, the samples can be discharged for analysis according to requirements, the compatibility is high, and the use is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling device technical field, concretely is a kind of all-vanadium redox flow battery electrolyte sampling analysis device. BACKGROUND

[0002] All-vanadium redox flow battery is a kind of with vanadium as active substance presents cyclic flow liquid state's oxidation-reduction battery, in practical application, water and vanadium ion cross-membrane migration, cause certain risk for the safe and stable operation of electric pile, to ensure the quality of electrolyte product, it needs to take out sample from the shell that has been equipped and carries out detection.

[0003] According to the application number for 201920537967.1 a kind of all-vanadium redox flow battery electrolyte sampling analysis device, wherein each part of electrolyte can be extracted simultaneously, reduce error, so as to accurately reflect the real state of each part in all-vanadium redox flow battery, so as to bring convenience to the sampling and carrying of electrolyte for staff.

[0004] However, the above sampling analysis device still has certain deficiency, the device can sample synchronously, but the positive and negative electrolyte of all-vanadium redox flow battery is analyzed separately in the process of needing analysis, and the above device will also discharge the sample taken when analyzing, and cannot discharge sample for analysis use once according to analysis demand, so there is certain deficiency, for this, we provide a kind of all-vanadium redox flow battery electrolyte sampling analysis device. UTILITY MODEL CONTENT

[0005] In view of the deficiency of prior art, the utility model provides a kind of all-vanadium redox flow battery electrolyte sampling analysis device, solves the problem raised in the above background art.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of all-vanadium redox flow battery electrolyte sampling analysis device, including sampling box and analysis jar, the inside of the sampling box is equipped with several sample storage cavities, the inside of sampling box top is slidably installed with connecting rod, one end of the connecting rod is fixedly installed with piston plate, the other end of the connecting rod is fixedly installed with operating head, the inside of the bottom of the sampling box and below several sample storage cavities are all provided with sample inlet tube, the inside of the sample inlet tube is provided with liquid inlet check valve, the inside of the bottom of the sampling box and below several sample storage cavities are all provided with sample outlet tube, the inside of the sample outlet tube is provided with sample outlet check valve, the inside of the sampling box is equipped with two sliding grooves, the inside of the sliding groove is slidably installed with slide bar, one end of the slide bar is fixedly installed with abutment plate, the outside of the slide bar is installed with spring, the other end of the slide bar extends to the outside of sampling box top and is fixedly installed with synchronous pull plate, the synchronous pull plate is matched with operating head, the inside of the one side of the synchronous pull plate is equipped with several U-shaped grooves, the U-shaped groove is matched with connecting rod.

[0007] Preferably, a connecting seat is fixedly installed on one side of the analysis vessel, and a connecting groove is opened inside one side of the connecting seat. A connecting plate is fixedly installed on one side of the sampling box, and the connecting plate cooperates with the connecting groove. Two fixing bolts are installed on the internal thread of the top of the connecting seat, and the fixing bolts cooperate with the connecting plate.

[0008] Preferably, the analysis vessel is equipped with an analysis device inside, and an air inlet pipe is provided on one side of the analysis vessel, and an air outlet pipe is provided on one side of the analysis vessel.

[0009] Preferably, a sampling tube is connected to the bottom of the injection tube, and a sample delivery tube is connected to the bottom of the outlet tube.

[0010] Preferably, an inlet is provided on one side of the analysis vessel, and the sample delivery tube is fitted with the inlet.

[0011] Preferably, the piston plate is fitted with the inner wall of the sample storage chamber.

[0012] This invention provides a sampling and analysis device for vanadium redox flow battery electrolyte, which has the following advantages:

[0013] 1. This vanadium redox flow battery electrolyte sampling and analysis device, through the configuration of a sample storage chamber, connecting rod, piston plate, operating head, sample inlet tube, liquid inlet check valve, sample outlet tube, sample outlet check valve, chute, sliding rod, stop plate, spring, synchronous pull plate and U-shaped groove, can simultaneously perform multiple samplings as needed, and in the subsequent analysis process, the sampled samples can be discharged separately for analysis as needed. It has high compatibility and is convenient and quick to use.

[0014] 2. The vanadium redox flow battery electrolyte sampling and analysis device, through the setting of connecting seat, connecting groove, connecting plate and fixing bolts, facilitates the connection and assembly of the sampling box with the analysis tank after sampling, and facilitates the subsequent discharge of the sample for analysis. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the image.

[0019] In the diagram: 1. Sampling box; 2. Analysis vessel; 3. Sample storage chamber; 4. Connecting rod; 5. Piston plate; 6. Operating head; 7. Sample inlet tube; 8. Liquid inlet check valve; 9. Sample outlet tube; 10. Sample outlet check valve; 11. Slide groove; 12. Slide rod; 13. Support plate; 14. Spring; 15. Synchronous pull plate; 16. U-shaped groove; 17. Connecting seat; 18. Connecting groove; 19. Connecting plate; 20. Fixing bolt; 21. Analysis device; 22. Air inlet pipe; 23. Air outlet pipe; 24. Sampling tube; 25. Sample delivery tube. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a sampling and analysis device for vanadium redox flow battery electrolyte, including a sampling box 1 and an analysis tank 2. The sampling box 1 has several sample storage chambers 3 inside. A connecting rod 4 is slidably installed inside the top of the sampling box 1. A piston plate 5 is fixedly installed at one end of the connecting rod 4, and the piston plate 5 cooperates with the inner wall of the sample storage chamber 3. An operating head 6 is fixedly installed at the other end of the connecting rod 4. An inlet pipe 7 is provided inside the bottom of the sampling box 1, below each of the sample storage chambers 3. A one-way valve 8 is installed inside the inlet pipe 7. The one-way valve 8 ensures that electrolyte can only enter the sample storage chambers 3 through the inlet pipe 7, while electrolyte in the sample storage chambers 3 cannot be discharged from the inlet pipe 7. An outlet pipe 9 is provided inside the bottom of the sampling box 1, below each of the sample storage chambers 3. There is a one-way valve 10 for discharging the sample. The function of the one-way valve 10 is to allow the electrolyte to be discharged from the sample storage chamber 3, while the outside air cannot enter the sample storage chamber 3 from the sample discharging pipe 9. There are two sliding grooves 11 inside the sampling box 1. A sliding rod 12 is slidably installed inside the sliding groove 11. A stop plate 13 is fixedly installed at one end of the sliding rod 12. A spring 14 is installed on the outside of the sliding rod 12. The stop plate 13 cooperates with the spring 14. Its function is that when the sliding rod 12 and the stop plate 13 move upward, they compress the spring 14. The spring 14 can then rebound to drive the stop plate 13 and the synchronous pull plate 15 to reset. The other end of the sliding rod 12 extends to the outside of the top of the sampling box 1 and is fixedly installed with the synchronous pull plate 15. The synchronous pull plate 15 cooperates with the operating head 6. Several U-shaped grooves 16 are opened inside one side of the synchronous pull plate 15. The U-shaped grooves 16 cooperate with the connecting rod 4.

[0022] A connecting seat 17 is fixedly installed on one side of the analysis tank 2. A connecting groove 18 is opened inside one side of the connecting seat 17. A connecting plate 19 is fixedly installed on one side of the sampling box 1. The connecting plate 19 cooperates with the connecting groove 18. Two fixing bolts 20 are installed on the internal thread of the top of the connecting seat 17. The fixing bolts 20 cooperate with the connecting plate 19.

[0023] The analysis vessel 2 is equipped with an analysis device 21. An air inlet pipe 22 and an air outlet pipe 23 are provided on one side of the analysis vessel 2. A sampling pipe 24 is connected to the bottom of the sample inlet pipe 7, and a sample delivery pipe 25 is connected to the bottom of the sample outlet pipe 9. An input port is provided on one side of the analysis vessel 2, and the sample delivery pipe 25 is connected to the input port. The analysis vessel 2 and its internal structure are all existing technologies. Its function is to analyze the positive and negative electrode electrolytes of vanadium redox flow batteries, such as Anton Paar DMA 4500M. There are several sample delivery pipes 25, each with a certain length. They can discharge the sampled electrolyte into the analysis vessel 2 as needed for analysis. During analysis, the electrolyte can be discharged into the analysis vessel 2 by connecting the sample delivery pipe 25 to the analysis vessel 2.

[0024] In summary, this vanadium redox flow battery electrolyte sampling and analysis device only requires inserting several sampling tubes 24 into the vanadium redox flow battery electrolyte to be sampled during the sampling process. Then, by pulling up the synchronous pull plate 15, the operating head 6 is brought into contact with the synchronous pull plate 15, which in turn pulls the operating head 6 and the connecting rod 4 upwards. The upward movement of the connecting rod 4 causes the piston plate 5 to move upwards, creating a negative pressure in the sample storage chamber 3, thus allowing the electrolyte to be drawn into the sample storage chamber 3 through the sampling tubes 24. Simultaneously, when the synchronous pull plate 15 is pulled up, the sliding rod 12 and the abutment plate 13 move upwards together, and the abutment plate 13 compresses the spring 14, thus collecting the sample. After completion, releasing the synchronous pull plate 15 will cause the spring 14 to rebound, pushing the stop plate 13 and slide rod 12 downwards, thus resetting the synchronous pull plate 15 and completing the sampling. For subsequent analysis, the sampling box 1 is inserted into the connecting groove 18 through the connecting plate 19, and then the fixing bolt 20 is tightened to fix the connecting plate 19 in the connecting groove 18. Then, the two ends of the sample delivery tube 25 are connected to the sample outlet tube 9 and the inlet of the analysis vessel 2, respectively. After pushing down the corresponding operating head 6, the electrolyte in the sample storage chamber 3 can be input into the analysis vessel 2 through the sample outlet tube 9 and the sample delivery tube 25, and the analysis can begin.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sampling and analysis device for vanadium redox flow battery electrolyte, comprising a sampling box (1) and an analysis vessel (2), characterized in that: The sampling box (1) has several sample storage chambers (3) inside. A connecting rod (4) is slidably installed inside the top of the sampling box (1). A piston plate (5) is fixedly installed at one end of the connecting rod (4), and an operating head (6) is fixedly installed at the other end of the connecting rod (4). An inlet tube (7) is provided inside the bottom of the sampling box (1) and below the several sample storage chambers (3). A liquid inlet check valve (8) is provided inside the inlet tube (7). An outlet tube (9) is provided inside the bottom of the sampling box (1) and below the several sample storage chambers (3). An outlet tube (9) is provided inside the outlet tube (9). The sampling box (1) is equipped with a one-way valve (10). The sampling box (1) has two sliding grooves (11) inside. A sliding rod (12) is slidably installed inside the sliding groove (11). A stop plate (13) is fixedly installed at one end of the sliding rod (12). A spring (14) is installed on the outside of the sliding rod (12). A synchronous pull plate (15) is fixedly installed at the other end of the sliding rod (12) to the outside of the top of the sampling box (1). The synchronous pull plate (15) cooperates with the operating head (6). Several U-shaped grooves (16) are opened inside one side of the synchronous pull plate (15). The U-shaped grooves (16) cooperate with the connecting rod (4).

2. The vanadium redox flow battery electrolyte sampling and analysis device according to claim 1, characterized in that: A connecting seat (17) is fixedly installed on one side of the analysis tank (2). A connecting groove (18) is opened inside one side of the connecting seat (17). A connecting plate (19) is fixedly installed on one side of the sampling box (1). The connecting plate (19) cooperates with the connecting groove (18). Two fixing bolts (20) are installed on the internal thread of the top of the connecting seat (17). The fixing bolts (20) cooperate with the connecting plate (19).

3. The vanadium redox flow battery electrolyte sampling and analysis device according to claim 1, characterized in that: The analysis tank (2) is equipped with an analysis device (21) inside, an air inlet pipe (22) is provided on one side of the analysis tank (2), and an air outlet pipe (23) is provided on one side of the analysis tank (2).

4. The vanadium redox flow battery electrolyte sampling and analysis device according to claim 1, characterized in that: The bottom of the injection tube (7) is connected to a sampling tube (24), and the bottom of the outlet tube (9) is connected to a delivery tube (25).

5. The vanadium redox flow battery electrolyte sampling and analysis device according to claim 4, characterized in that: The analysis vessel (2) has an inlet on one side, and the sample delivery tube (25) is fitted with the inlet.

6. The vanadium redox flow battery electrolyte sampling and analysis device according to claim 1, characterized in that: The piston plate (5) fits into the inner wall of the sample storage cavity (3).

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