Liquid oil filtering and purifying equipment for submerged energy storage system

Abstract

The application discloses a liquid oil filtering and purifying equipment of an immersed energy storage system, and aims to provide the liquid oil filtering and purifying equipment of the immersed energy storage system which can effectively solve the problems that the battery in the immersed energy storage system will secrete electrolyte into cooling oil in a long-term use process, the cooling oil which is not originally conductive becomes a conductor in the whole cycle, and the battery is short-circuited and the like. It comprises a sedimentation tank, an upper portion of the sedimentation tank is provided with an oil inlet and an oil outlet, a zirconium storage bin, the zirconium storage bin is located higher than a liquid level of the sedimentation tank, a bottom of the zirconium storage bin is provided with a discharging opening and a translation bin door used for sealing and shielding the discharging opening, a hinged plate, the hinged plate is rotationally arranged in the sedimentation tank through a rotating shaft, the hinged plate is in an inclined distribution, a connecting rod mechanism, the hinged plate is connected with the translation bin door through the connecting rod mechanism, and the hinged plate rotates around the rotating shaft; in the process, the connecting rod mechanism drives the translation bin door to translate, so as to open or close the discharging opening.

Description

A liquid oil filtration and purification device for an immersion energy storage system Technical Field

[0001] This invention relates to the field of submerged liquid-cooled energy storage systems, and more specifically to a liquid oil filtration and purification device for submerged energy storage systems. Background Technology

[0002] Immersion liquid-cooled energy storage systems are an advanced battery cooling technology. These systems completely submerge the battery in cooling oil, which then circulates to rapidly absorb the heat generated during charging and discharging. The cooling oil is then carried to an external circulation system for further cooling, ensuring the battery operates within its optimal temperature range and extending its lifespan. However, because the battery generates heat and is constantly immersed in cooling oil, electrolyte produced by the battery can become mixed into the cooling oil over long-term use. When the electrolyte content in the cooling oil increases to a certain level, the normally non-conductive cooling oil can become conductive, causing the entire battery to operate in a conductive liquid, potentially leading to short circuits.

[0003] This invention belongs to the field of refrigeration equipment. The problem to be solved is that after long-term use, batteries will secrete electrolyte. When the liquid (oil) mixes with the electrolyte, the oil, which is not normally conductive, will become conductive, thus causing the battery to short-circuit and other problems. Summary of the Invention

[0004] The purpose of this invention is to provide a liquid oil filtration and purification device for submerged energy storage systems that can effectively solve the problem that, during long-term use, batteries in submerged energy storage systems secrete electrolyte that mixes into the cooling oil, causing the originally non-conductive cooling oil to become conductive throughout the cycle, leading to short circuits in the batteries.

[0005] The technical solution of this invention is:

[0006] A liquid oil filtration and purification device for a submerged energy storage system includes:

[0007] The sedimentation tank has an oil inlet and an oil outlet at the top. Cooling oil flows into the sedimentation tank through the oil inlet and flows out through the oil outlet.

[0008] The zircon storage bin is located above the liquid level of the sedimentation tank. The bottom of the zircon storage bin is equipped with a discharge port and a sliding door for sealing the discharge port.

[0009] The rocker plate is installed in the sedimentation tank by rotating a shaft. The rocker plate is distributed at an angle, and at least a portion of the rocker plate is located below the liquid surface in the sedimentation tank.

[0010] The rocker arm is connected to the sliding door via a linkage mechanism. As the rocker arm rotates around the pivot, the linkage mechanism drives the sliding door to move horizontally, thereby opening or closing the material discharge port.

[0011] During the operation of the liquid oil filtration and purification equipment in the submerged energy storage system, the electrolyte at the bottom of the sedimentation tank gradually increases, and the interface between the cooling oil and the electrolyte gradually rises. During this process, the lower part of the rocker plate gradually immerses in the electrolyte, increasing the buoyancy. When the interface between the cooling oil and the electrolyte reaches a set height, the lower part of the rocker plate rotates upwards around the shaft under the influence of buoyancy, causing the linkage mechanism to move the sliding door horizontally, opening the discharge port. The zircon storage silo contains zircon.

[0012] In a submerged energy storage system, the cooling oil flows through an external circulation system for cooling, passing through a settling tank (the oil flows into the settling tank from the inlet and out from the outlet). During long-term use, the electrolyte level in the settling tank gradually increases. Because the electrolyte is insoluble in the cooling oil and its density is greater than that of the cooling oil, it settles at the bottom of the settling tank. As the electrolyte level rises, the interface between the cooling oil and the electrolyte gradually increases. During this process, the lower part of the rocker arm gradually becomes immersed in the electrolyte, increasing the buoyancy. When the interface between the cooling oil and the electrolyte is below the rocker arm, the linkage mechanism moves the sliding door to close the discharge port. As the interface between the cooling oil and the electrolyte gradually rises to the set height, the rocker arm loses its original balance. Under buoyancy, the lower part of the rocker arm rotates upwards around the pivot, causing the linkage mechanism to move the sliding door, opening the discharge port. At this time, a portion of the zircon stored in the zircon storage chamber will fall into the sedimentation tank through the discharge port. Zircon has a large specific surface area and extremely high surface charge density, allowing it to adsorb and exchange with ions and particles in the liquid, such as heavy metal ions, silica gel, nitrides, and phosphates. During ion exchange, cations such as Ca2+ and Mg2+ in the zircon exchange with anions in the liquid, such as SO42- and C-, thereby removing ions from the liquid. During adsorption, zircon has excellent adsorption properties, capable of adsorbing particles and organic matter in the liquid, purifying the cooling oil through filtration. As the zircon reacts in the settling tank, the electrolyte level gradually decreases. Once the interface between the cooling oil and the electrolyte reaches a set height, the rocker arm resets, and the linkage mechanism drives the sliding door to close the discharge port. This effectively controls the composition of the cooling oil flowing from the upper outlet of the settling tank, ensuring that the oil flowing out is non-conductive and insulating. This effectively solves the problem in submerged energy storage systems where, during long-term use, electrolyte secretions from the batteries can contaminate the cooling oil, turning the originally non-conductive oil into a conductor throughout the cycle and causing short circuits.

[0013] Preferably, a tension spring is also included, connecting the rocker arm to the bottom of the sedimentation tank. The rocker arm is tilted under the action of the tension spring, and the lower ends of the tension spring and the rocker arm are located on the same side of the rotating shaft. In this way, the rocker arm can be reset under the action of the tension spring, and the linkage mechanism can drive the sliding gate to close the discharge port.

[0014] Preferably, the center of gravity of the rocker is located on one side of the rotating shaft, and the rocker is tilted under its own weight, with its center of gravity and lower end on the same side of the rotating shaft. In this way, the rocker can return to its original position under its own weight and, through a linkage mechanism, drive the sliding door to close the material discharge port.

[0015] Preferably, the discharge port is located on the bottom surface of the zircon storage bin, and a slide rail is also provided on the bottom surface of the zircon storage bin, along which the sliding bin door slides. This ensures that the sliding bin door can slide smoothly to open or close the discharge port.

[0016] Preferably, the linkage mechanism includes a door linkage and a rocker linkage hinged together, with the end of the rocker linkage hinged to the rocker and the end of the door linkage hinged to the door. Thus, as the rocker rotates around its axis, the linkage mechanism can smoothly drive the sliding door to move, thereby opening or closing the discharge port.

[0017] Preferably, the discharge port is located above the rocker arm, near the upper end of the rocker arm. The rocker arm has several zircon passages, distributed from the upper end to the lower end. In this way, the zircon falling from the discharge port will land on the rocker arm and slide down it. During this process, as the zircon passes through the zircon passages, it will fall to the bottom of the settling tank. This arrangement helps to distribute the zircon more evenly at the bottom of the settling tank, facilitating the adsorption and exchange of zircon with ions and particles in the liquid.

[0018] Preferably, the tilt angle of the rocker is 15-45 degrees. This controls the speed at which the zircon slides down the rocker, preventing it from falling too fast and failing to pass through the zircon passage, thus promoting a more even distribution of the zircon at the bottom of the sedimentation tank.

[0019] Preferably, the zircon storage bin is fixed to the upper part of the settling tank. This facilitates the installation of the zircon storage bin and ensures that the zircon falling from the discharge port enters the settling tank.

[0020] Preferably, the oil inlet and oil outlet are located on opposite sides of the sedimentation tank.

[0021] The beneficial effects of this invention are: it can effectively solve the problem that, during long-term use, batteries in submerged energy storage systems secrete electrolyte that mixes into the cooling oil, causing the originally non-conductive cooling oil to become conductive throughout the cycle, leading to short circuits in the battery. Attached Figure Description

[0022] Figure 1 is a cross-sectional structural schematic diagram of a liquid oil filtration and purification device for an immersion energy storage system according to the present invention.

[0023] Figure 2 is a three-dimensional structural schematic diagram of a liquid oil filtration and purification device for an immersion energy storage system according to the present invention.

[0024] Figure 3 is a schematic diagram of a zircon storage chamber according to the present invention.

[0025] Figure 4 is a partial cross-sectional structural diagram of the slide rail of the zircon storage bin of the present invention.

[0026] Figure 5 is a schematic diagram of the structure of a liquid oil filtration and purification device of an immersion energy storage system of the present invention in a certain state during use.

[0027] Figure 6 is a schematic diagram of the structure of a liquid oil filtration and purification device of an immersion energy storage system of the present invention in another state during use.

[0028] In the picture:

[0029] Sedimentation tank 1, oil inlet 1.1, oil outlet 1.2;

[0030] Zircon storage bin 2, material discharge port 2.1, sliding bin door 2.2, slide rail 2.3;

[0031] Seesaw 3;

[0032] Shaft 4;

[0033] Linkage mechanism 5, rocker linkage 5.1, door linkage 5.2;

[0034] Tension spring 6;

[0035] Cooling oil 7;

[0036] Electrolyte 8. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0038] As shown in Figures 1, 2, 3, and 4, a liquid oil filtration and purification device for a submerged energy storage system includes a sedimentation tank 1, a zircon storage chamber 2, a rocker arm 3, and a linkage mechanism 5. The upper part of the sedimentation tank has an oil inlet 1.1 and an oil outlet 1.2. In this embodiment, the oil inlet and outlet are located on opposite sides of the sedimentation tank. Cooling oil flows into the sedimentation tank through the oil inlet and flows out through the oil outlet.

[0039] The zircon storage bin 2 is positioned above the liquid level in the settling tank. In this embodiment, the zircon storage bin is fixed to the upper part of the settling tank and is located within the settling tank. This facilitates the installation of the zircon storage bin and ensures that the zircon falling from the discharge port enters the settling tank. The bottom of the zircon storage bin is provided with a discharge port 2.1 and a sliding door 2.2 for sealing the discharge port. Specifically, the discharge port is located on the bottom surface of the zircon storage bin. A slide rail 2.3 is also provided on the bottom surface of the zircon storage bin. The slide rail is horizontally distributed, and the sliding door slides along the slide rail. This ensures that the sliding door can slide smoothly to open or close the discharge port.

[0040] The rocker arm 3 is rotatably mounted inside the sedimentation tank via a rotating shaft 4. In this embodiment, the rotating shaft is horizontally distributed, and the slide rail is perpendicular to the rotating shaft. The rotating shaft is located in the middle of the rocker arm. The rocker arm is inclined. At least a portion of the rocker arm is located below the liquid surface of the sedimentation tank; in this embodiment, the entire rocker arm is submerged below the liquid surface of the sedimentation tank.

[0041] The rocker arm is connected to the sliding bin door via a linkage mechanism 5. The linkage mechanism includes a hinged bin door linkage 5.2 and a rocker arm linkage 5.1. The end of the rocker arm linkage is hinged to the rocker arm, and the end of the bin door linkage is hinged to the bin door. As the rocker arm rotates around its pivot, the linkage mechanism drives the sliding bin door to move horizontally, thereby opening or closing the discharge port.

[0042] In one embodiment of this invention, a liquid oil filtration and purification device for a submerged energy storage system further includes a tension spring 6. The tension spring connects a rocker arm to the bottom of the sedimentation tank, and the rocker arm is inclined under the action of the tension spring. The lower ends of the tension spring and the rocker arm are located on the same side of the rotating shaft. In this way, the rocker arm can be reset under the action of the tension spring, and the linkage mechanism can drive the sliding chamber door to close the discharge port.

[0043] In another embodiment of this invention, the center of gravity of the rocker is located on one side of the rotating shaft, and the rocker is tilted under its own weight (not shown in the figure). The center of gravity of the rocker and the lower end of the rocker are located on the same side of the rotating shaft. In this way, the rocker can be reset under its own weight and drive the sliding door to close the discharge port through the linkage mechanism.

[0044] As shown in Figures 5 and 6, during the operation of the liquid oil filtration and purification equipment in the submerged energy storage system, the electrolyte 8 at the bottom of the sedimentation tank 1 gradually increases, and the interface between the cooling oil 7 and the electrolyte 8 gradually rises. During this process, the lower part of the rocker plate gradually immerses in the electrolyte, thereby gradually increasing the buoyancy of the lower part of the rocker plate. When the interface between the cooling oil and the electrolyte gradually rises to the set height, the lower part of the rocker plate will rotate upward around the pivot under the action of buoyancy (overcoming the force of the tension spring or the self-weight of the rocker plate), so that the linkage mechanism drives the sliding chamber door to slide horizontally and open the discharge port. Zircon storage chamber contains zircon.

[0045] In this embodiment, the lower part of the rocker refers to the portion of the rocker between its lower end and the pivot. The upper part of the rocker refers to the portion of the rocker between its upper end and the pivot. The end of the rocker connecting rod is hinged to the upper part of the rocker.

[0046] As shown in Figure 5, during the cooling process of the cooling oil flowing into the external circulation system in the submerged energy storage system, the cooling oil flows through the sedimentation tank (the cooling oil flows into the sedimentation tank from the inlet and flows out from the outlet). During long-term use, the electrolyte in the sedimentation tank gradually increases. Because the electrolyte is insoluble in the cooling oil and its density is greater than that of the cooling oil, the electrolyte will settle at the bottom of the sedimentation tank. As the electrolyte in the sedimentation tank increases, the interface between the cooling oil and the electrolyte gradually rises. During this process, the lower part of the rocker arm gradually immerses in the electrolyte, thus increasing the buoyancy of the lower part of the rocker arm. As shown in Figure 5, when the interface between the cooling oil and the electrolyte is below the rocker arm, the linkage mechanism drives the sliding door to close the discharge port. As shown in Figure 6, when the interface between the cooling oil and the electrolyte gradually rises to the set height, the rocker arm loses its original balance. The lower part of the rocker arm will rotate upwards around the pivot under buoyancy, causing the linkage mechanism to move the sliding door horizontally and open the discharge port. At this time, a portion of the zircon stored in the zircon storage bin will fall into the sedimentation tank through the discharge port. Zircon has a large specific surface area and extremely high surface charge density, allowing it to adsorb and exchange with ions and particles in the liquid, such as heavy metal ions, silica gel, nitrides, and phosphates. During ion exchange, cations such as Ca2+ and Mg2+ in the zircon exchange with anions in the liquid, such as SO42- and C-, thereby removing ions from the liquid. During adsorption, zircon has excellent adsorption properties, capable of adsorbing particles and organic matter in the liquid, thus purifying the cooling oil through filtration. As the zircon reacts in the settling tank, the electrolyte gradually decreases. Once the interface between the cooling oil and electrolyte reaches a set height, the rocker arm resets under the action of the tension spring, and the linkage mechanism drives the sliding door to close the discharge port. This effectively controls the composition of the cooling oil flowing from the upper outlet of the settling tank, ensuring that the oil flowing out is non-conductive and insulating. This effectively solves the problem in submerged energy storage systems where, during long-term use, the battery secretes electrolyte that mixes into the cooling oil, turning the originally non-conductive oil into a conductor throughout the cycle, leading to short circuits in the battery.

[0047] In this second specific embodiment, the remaining structure is the same as in the first specific embodiment, except that...

[0048] The discharge port is located above the rocker arm, near the upper end of the rocker arm. The rocker arm has several zircon passages (not shown in the diagram). These passages are evenly distributed from the upper end of the rocker arm towards the lower end, with any two adjacent rows staggered. In this way, the zircon falling from the discharge port lands on the rocker arm and slides down it. During this process, as the zircon passes through the passages, it falls to the bottom of the settling tank. This ensures a more even distribution of the zircon at the bottom of the settling tank, facilitating the adsorption and exchange of zircon with ions and particles in the liquid.

[0049] Furthermore, the tilt angle of the rocker is 15-45 degrees. This controls the speed at which the zircon slides down the rocker, preventing it from falling too fast and failing to pass through the zircon outlet, thus promoting a more even distribution of the zircon at the bottom of the sedimentation tank.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A liquid oil filtration and purification device for an immersion energy storage system, characterized in that, include: A sedimentation tank has an oil inlet and an oil outlet at its upper part. Cooling oil flows into the sedimentation tank through the oil inlet and flows out through the oil outlet. A zircon storage bin is located above the liquid level in the sedimentation tank. The bottom of the zircon storage bin has a discharge port and a sliding door for sealing the discharge port. Inclined rocker arms are rotatably mounted inside the sedimentation tank via a rotating shaft, with at least a portion of the rocker arms below the liquid level. A linkage mechanism connects the rocker arms to the sliding door. During the rotation of the rocker arms around the rotating shaft, the linkage... The lever mechanism drives the sliding chamber door to move horizontally, thereby opening or closing the discharge port. During equipment use, the electrolyte at the bottom of the sedimentation tank gradually increases, and the interface between the cooling oil and the electrolyte gradually rises. During this process, the lower part of the rocker plate gradually immerses in the electrolyte, so that the buoyancy of the lower part of the rocker plate gradually increases. When the interface between the cooling oil and the electrolyte gradually rises to the set height, the lower part of the rocker plate will rotate upward around the pivot under the action of buoyancy, so that the linkage mechanism drives the sliding chamber door to move horizontally and open the discharge port.

2. The liquid oil filtration and purification device for a submerged energy storage system according to claim 1, characterized in that, It also includes a tension spring, which connects the rocker plate to the bottom of the sedimentation tank. The rocker plate is tilted under the action of the tension spring, and the lower ends of the tension spring and the rocker plate are located on the same side of the rotating shaft.

3. The liquid oil filtration and purification device for a submerged energy storage system according to claim 1, characterized in that, The center of gravity of the rocker is located on one side of the pivot, and the rocker is tilted under its own weight. The center of gravity of the rocker and the lower end of the rocker are located on the same side of the pivot.

4. A liquid oil filtration and purification device for an immersion energy storage system according to claim 1, 2, or 3, characterized in that, The discharge port is located on the bottom surface of the zircon storage silo, and a slide rail is also provided on the bottom surface of the zircon storage silo, along which the sliding silo door slides.

5. A liquid oil filtration and purification device for an immersion energy storage system according to claim 1, 2, or 3, characterized in that, The linkage mechanism includes a door linkage and a rocker linkage that are hinged together. The end of the rocker linkage is hinged to the rocker, and the end of the door linkage is hinged to the door.

6. A liquid oil filtration and purification device for an immersion energy storage system according to claim 1, 2, or 3, characterized in that, The material discharge port is located above the rocker plate and is close to the upper end of the rocker plate. The rocker plate is provided with several zircon passages, which are distributed from the upper end of the rocker plate to the lower end.

7. The liquid oil filtration and purification device for an immersion energy storage system according to claim 6, characterized in that, The tilt angle of the rocker is 15-45 degrees.

8. A liquid oil filtration and purification device for an immersion energy storage system according to claim 1, 2, or 3, characterized in that, The zircon storage silo is fixed to the top of the sedimentation tank.

9. A liquid oil filtration and purification device for an immersion energy storage system according to claim 1, 2, or 3, characterized in that, The oil inlet and oil outlet are located on opposite sides of the sedimentation tank.

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