Lead-carbon energy storage battery with built-in gas-liquid separation, backflow and pressure balance explosion-proof functions

Abstract

The application discloses a lead-carbon energy storage battery with built-in gas-liquid separation, backflow and pressure balance explosion-proof functions, and belongs to the technical field of batteries. The application aims to solve the problems of electrolyte loss, environmental pollution and lack of pressure balance explosion-proof mechanism caused by acid mist generated during discharge of the existing lead-carbon energy storage battery. The battery box is internally provided with a battery pack, the top of the battery pack is provided with a cover part to form a ventilation air duct, a cooling mechanism is used for preliminarily condensing the acid mist, a separation part is used for twice cooling and gas-liquid separation of the acid mist, and the liquefied electrolyte is sent back to the battery pack. The improved features include that the air duct is formed by external and internal serpentine slats, the cooling is implemented through multi-stage heat exchange pipes, specific exhaust components and a pressure control automatic sealing structure are used, the battery can delay electrolyte loss, realize pressure balance explosion-proof, prolong the service life of the battery and improve the use safety.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to a lead-carbon energy storage battery with built-in gas-liquid separation, reflux and pressure balance explosion-proof functions. Background Technology

[0002] Lead-carbon energy storage batteries, as an important energy storage device, have broad application prospects in fields such as power storage and new energy vehicles. During the operation of lead-carbon energy storage batteries, acid mist is generated during the discharge process. The acid mist contains electrolyte components. If this acid mist is directly discharged into the external environment, it will not only cause electrolyte loss, reduce battery life, and increase usage costs, but also pollute the surrounding environment and harm human health. Traditional energy storage battery structures lack effective acid mist treatment and electrolyte recovery mechanisms, which brings about many problems.

[0003] On the one hand, if acid mist is directly emitted into the surrounding environment, it will cause pollution to the environment, because the harmful substances in acid mist may disrupt the ecological balance, affect air quality, and harm human health. For example, in some industrial energy storage application scenarios, if the acid mist generated by a large number of energy storage batteries is not treated, it will cause the air quality of the surrounding area to decline and have an adverse impact on the lives and health of nearby residents.

[0004] On the other hand, if the electrolyte carried in the acid mist cannot be recycled and reused, it will lead to faster loss of electrolyte in the battery pack. As the electrolyte decreases, the performance of the battery pack will gradually decline, such as reduced battery capacity and poorer charging and discharging efficiency, which will shorten the service life of the battery pack. This not only increases the cost of use, but also wastes resources, because the production of electrolyte requires the consumption of certain raw materials and energy.

[0005] To address the aforementioned issues, this invention proposes a lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions. Summary of the Invention

[0006] This invention provides a lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions, solving the problems of electrolyte loss, environmental pollution, and lack of pressure balance explosion-proof mechanism caused by acid mist generated during discharge in existing lead-carbon energy storage batteries.

[0007] This invention provides the following technical solution:

[0008] Lead-carbon energy storage batteries with built-in gas-liquid separation, reflux, pressure balancing, and explosion-proof functions include:

[0009] A battery box, in which a battery pack is fixedly installed, and multiple exhaust valves are evenly spaced on one side of the battery pack;

[0010] The sealing component is sealed and snapped into the top opening of the battery box, including a top cover plate and a partition cover plate. Both are sealed and snapped into the inner wall of the battery box. An external serpentine strip and an internal serpentine strip are fixedly installed on the top of the partition cover plate. The top of both are fixedly connected to the bottom of the top cover plate and enclose to form a ventilation channel. Multiple ventilation holes are opened at equal intervals on the partition cover plate.

[0011] The cooling mechanism is connected to the external and internal serpentine slats, and extends to the outside of the battery box on one side and is fixedly connected to the battery box.

[0012] The separation component is installed on the partition cover and connected to the cooling mechanism, with its bottom connected to the liquid inlet of the battery pack.

[0013] The acid mist generated by the battery pack discharge enters between the two cover plates through the vent. After being condensed by the cooling mechanism, it is separated into gas and liquid by the separation component. The liquefied electrolyte is then returned to the battery pack, while simultaneously achieving pressure balance and explosion prevention.

[0014] In one possible design, the cooling mechanism includes a plurality of first heat exchange tubes, which pass through the outer serpentine slats and the inner serpentine slats at equal intervals and are fixedly connected to both. One end of each tube is fixedly connected to a first connecting pipe. The mechanism also includes an air intake assembly installed on one side of the battery box. One side of the air intake assembly extends between the two cover plates and is fixedly connected to the first connecting pipe. The other end of each first heat exchange tube is connected to a separation component. The air intake assembly delivers external gas to the first connecting pipe, which is then diverted and introduced into each of the first heat exchange tubes to maintain the low temperature of the tube walls. This allows the acid mist to come into contact with the first heat exchange tubes as it flows through the air duct, achieving initial condensation and liquefaction.

[0015] In one possible design, a first baffle and a second baffle are fixedly installed on the top of the partition cover. The first baffle is fixedly connected to the inner wall of one side of the battery box, the bottom of the top cover and the outer serpentine strip, respectively. The second baffle is fixedly connected to the inner wall of the other side of the battery box, the bottom of the top cover and the inner serpentine strip, respectively. The two baffles limit the flow path of acid mist and ensure that acid mist flows only along the ventilation duct.

[0016] In one possible design, the air intake assembly includes two fixed plates, which are fixed to one side of the battery box and are connected to a support pipe. A conical hood is fixedly installed at one end of the support pipe, and a dustproof net is fixedly installed at the opening of the conical hood. A fan mechanism is installed at the other end, and the actuating end of the fan mechanism extends into the support pipe. Multiple air delivery pipes are fixedly installed at equal intervals on the inner wall of the top of the support pipe. The top of the air delivery pipes extends into the first connecting pipe and is fixedly connected to the first connecting pipe. External air is drawn in and pressurized by the fan mechanism and stably delivered to the first connecting pipe through the air delivery pipes.

[0017] In one possible design, the fan component includes a drive motor fixedly mounted at the end of the support pipe. The output shaft of the drive motor extends into the support pipe and is fixedly mounted on a transmission shaft. One end of the transmission shaft extends into a conical shroud and is fixedly mounted on a first blade. Multiple second blades located inside the support pipe are also fixedly mounted on the transmission shaft at equal intervals. The drive motor drives the transmission shaft to drive the two blades to rotate synchronously. The first blade draws in external gas, and the second blade pressurizes the gas to achieve stable delivery.

[0018] In one possible design, the separation component includes a condenser box that penetrates and is fixedly connected to the partition cover plate. Multiple connecting pipes are fixedly installed at equal intervals on one inner wall of the condenser box. The component also includes multiple recovery boxes that penetrate and are fixedly connected to the partition cover plate at equal intervals and are located below each of the first heat exchange tubes. One end of the connecting pipe extends into the interior of the corresponding recovery box and is fixedly connected to the bottom inner wall of the recovery box. The initially condensed electrolyte falls into the recovery box and flows into the condenser box for centralized collection via the connecting pipe.

[0019] In one possible design, a cooling assembly is connected through the condenser. The cooling assembly includes a second connecting pipe fixedly connected to one end of each of the first heat exchange tubes. Multiple second heat exchange tubes are fixedly installed at equal intervals on the inner wall of one side of the second connecting pipe. The second heat exchange tubes pass through the condenser and are fixedly connected to the condenser. One end of the second heat exchange tubes is connected to an exhaust component. The top of the exhaust component passes through a top cover plate and is fixedly connected to the top cover plate. Gas in the first heat exchange tubes flows into the second connecting pipes and is diverted by the second heat exchange tubes to provide secondary cooling for the acid mist in the condenser.

[0020] In one possible design, the exhaust component includes an exhaust pipe, which is fixedly connected to one end of each of the second heat exchange tubes and has an exhaust bend fixedly installed at the other end. It also includes multiple mounting pipes, which are fixedly installed at equal intervals on the inner wall of the condenser, with one end extending to the outside of the condenser and together fixedly installed with a flow pipe. One end of the flow pipe extends into the exhaust pipe and is fixedly connected to the exhaust pipe. The gas after secondary cooling flows through the mounting pipe and the flow pipe into the exhaust pipe and is discharged together with the gas discharged from the second heat exchange tubes through the exhaust bend.

[0021] In one possible design, an installation ring is fixedly installed inside the exhaust bend, and a support ring is fixedly installed inside the installation ring. A sealing plate is provided inside the installation ring, and the sealing plate fits against the top of the support ring. A spherical plate is fixedly installed at the bottom of the sealing plate, passing through the support ring and fitting against the inner wall of the support ring. Multiple connection ports are evenly spaced on the sealing plate, and multiple elastic support frames are fixedly installed on the top of the support ring. The elastic support frames are located in the corresponding connection ports, and their tops extend above the sealing plate and are fixedly connected to the sealing plate. When the air pressure increases, it pushes the spherical plate to move upward to exhaust air. After the air pressure recovers, the elastic support frames drive the sealing plate to reset and seal.

[0022] In one possible design, a rectangular bracket is fixedly installed on the inner wall of the bottom of the battery box, the battery pack is fixedly installed on the rectangular bracket, and multiple pads are fixedly installed at equal intervals on the bottom of the battery pack, with the bottom of the pads fixedly connected to the inner wall of the bottom of the battery box; the rectangular bracket enables stable installation of the battery pack, and the pads provide cushioning protection.

[0023] In this invention, during the operation of the battery pack, acid mist is generated during the discharge process. The acid mist enters the space between the top cover and the partition cover through multiple vent holes evenly spaced on the partition cover. At this time, the air intake assembly is activated. When the drive motor is started, it can drive the transmission shaft to rotate, thereby driving the first blade and multiple second blades to rotate synchronously. The first blade draws external gas into the support pipe, and the multiple second blades pressurize and deliver the gas, causing the gas to flow from multiple gas delivery pipes into the first connecting pipe, and then dispersed to multiple first heat exchange tubes, keeping the first heat exchange tubes at a low temperature. When the acid mist passes through the ventilation duct formed by the external and internal serpentine slats, it comes into contact with multiple first heat exchange tubes and undergoes preliminary cooling treatment, causing part of the electrolyte in the acid mist to liquefy. The liquefied electrolyte falls into multiple recovery boxes and flows into the condensation box through the corresponding connecting pipe. The acid mist, after preliminary cooling, is then transported through the air intake hole to... Inside the condenser, cold air is transported from multiple first heat exchange tubes to second connecting tubes, and then dispersed to multiple second heat exchange tubes for secondary heat exchange and cooling of the acid mist entering the condenser. This liquefies all the electrolyte in the acid mist, which falls into the condenser. The electrolyte falling into the condenser is then transported back to the battery pack through multiple return pipes, achieving electrolyte recovery and slowing down electrolyte loss. Simultaneously, the cold air from the multiple second heat exchange tubes flows into the exhaust pipe and is discharged outward through the exhaust bend. The gas, after secondary cooling, is transported into the exhaust pipe through multiple mounting pipes and flow pipes, and discharged along with the cold air through the exhaust bend. When no acid mist treatment is performed, the spherical plate adheres to the inner wall of the support ring to seal the mounting ring. When the gas is discharged, the gas pressure inside the exhaust bend increases, and the spherical plate moves upward under the action of gas pressure, disengaging from the inner wall of the support ring, allowing the mounting ring to circulate and the gas to be discharged. The upward movement of the spherical plate also compresses the elastic support frame, facilitating repositioning and sealing.

[0024] In addition, the rectangular bracket on the inner wall of the bottom of the battery box supports the installation of the battery pack, and multiple pads provide cushioning protection for the battery pack. Through the above process, the energy storage battery achieves gas-liquid separation, electrolyte reflux, and pressure balance explosion-proof functions, effectively extending the battery's service life and improving its safety.

[0025] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention.

[0026] Beneficial effects:

[0027] 1. By setting up a cooling mechanism and separation components, the acid mist generated during the battery pack discharge process can first pass through the ventilation duct and undergo preliminary condensation under the action of the cooling mechanism, causing some of the electrolyte to liquefy and fall into the recovery box. Then, after further cooling in the condensation box, all the electrolyte in the acid mist is liquefied. Finally, the liquefied electrolyte is returned to the battery pack through the return pipe. This process realizes gas-liquid separation and electrolyte return, effectively delaying the loss of electrolyte and improving the battery's service life and stability.

[0028] 2. The battery has pressure balancing and explosion-proof functions. During the operation of the battery, the gas generated inside the battery can be discharged in time through the gas-liquid separation and reflux mechanism, so as to avoid safety problems such as explosion caused by excessive pressure due to gas accumulation. At the same time, the reasonable structural design also helps to maintain the stability of the internal pressure of the battery and ensure the safe operation of the battery.

[0029] 3. The cooling mechanism adopts a design with multiple first and second heat exchange tubes, in conjunction with the air intake assembly and the cooling assembly, to achieve multiple cooling processes for acid mist. The air intake assembly delivers external gas to the first heat exchange tube, maintaining its low temperature and performing initial cooling of the acid mist; the cooling assembly then performs secondary cooling of the acid mist entering the condensation chamber through the second heat exchange tube, ensuring that the electrolyte in the acid mist is fully liquefied. This multi-stage cooling method improves cooling efficiency and enhances gas-liquid separation effect.

[0030] 4. By setting external and internal serpentine slats to form a ventilation duct, and using the first and second baffles to limit the flow direction of acid mist, the acid mist can only flow through the ventilation duct. This design ensures that the acid mist can fully contact the first heat exchange tube, improves the cooling and gas-liquid separation effect, and avoids the leakage and diffusion of acid mist, thus ensuring the stability of the internal environment of the battery.

[0031] This invention achieves gas-liquid separation by using an air intake component and other components to cool the acid mist through two heat exchange processes. This allows the electrolyte to be completely liquefied and returned to the battery pack, delaying electrolyte loss, avoiding resource waste, reducing costs, achieving pressure balance and explosion prevention, reducing environmental pollution, effectively extending battery life, and improving safety. Attached Figure Description

[0032] Figure 1 This is a first-view three-dimensional structural schematic diagram of a lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions provided in an embodiment of the present invention.

[0033] Figure 2 This is a second-view three-dimensional structural schematic diagram of a lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions provided in an embodiment of the present invention.

[0034] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the battery box of the lead-carbon energy storage battery with built-in gas-liquid separation, reflux and pressure balance explosion-proof functions provided in an embodiment of the present invention.

[0035] Figure 4 This is a top three-dimensional schematic diagram of the connection structure between the top cover and the inner cover of the lead-carbon energy storage battery with built-in gas-liquid separation, reflux, pressure balance and explosion-proof functions provided in an embodiment of the present invention.

[0036] Figure 5 This is a three-dimensional top view of the connection structure between the top cover and the inner cover of the lead-carbon energy storage battery with built-in gas-liquid separation, reflux, pressure balance and explosion-proof functions provided in an embodiment of the present invention.

[0037] Figure 6 This is a three-dimensional schematic diagram of the internal cover plate, internal serpentine slats, and external serpentine slats connection structure of the lead-carbon energy storage battery with built-in gas-liquid separation, reflux, pressure balance, and explosion-proof functions provided in an embodiment of the present invention.

[0038] Figure 7 This is a three-dimensional schematic diagram of the internal structure of the first connecting pipe, multiple first heat exchange pipes, and condenser of the lead-carbon energy storage battery with built-in gas-liquid separation, reflux, pressure balance, and explosion-proof functions provided in an embodiment of the present invention.

[0039] Figure 8 This is a front-view cross-sectional structural diagram of the lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions provided in an embodiment of the present invention.

[0040] Figure 9 This is a three-dimensional cross-sectional schematic diagram of the exhaust pipe structure of the lead-carbon energy storage battery with built-in gas-liquid separation, reflux and pressure balance explosion-proof functions provided in an embodiment of the present invention.

[0041] Figure 10 This is a three-dimensional schematic diagram of the connection structure of the mounting pipe, multiple gas supply pipes and the first connecting pipe of the lead-carbon energy storage battery with built-in gas-liquid separation, reflux and pressure balance explosion-proof functions provided in the embodiment of the present invention.

[0042] Figure 11 This is a three-dimensional schematic diagram of the drive motor, transmission shaft, first blade, and multiple second blades of a lead-carbon energy storage battery with built-in gas-liquid separation, reflux, pressure balance, and explosion-proof functions provided in an embodiment of the present invention.

[0043] Figure label:

[0044] 1. Battery box; 2. Battery pack; 3. Top cover; 4. Partition cover; 5. Vent; 6. External serpentine slats; 7. Internal serpentine slats; 8. First baffle; 9. First heat exchange tube; 10. First connecting pipe; 11. Second connecting pipe; 12. Condenser; 13. Air inlet; 14. Second heat exchange tube; 15. Air outlet; 16. Mounting pipe; 17. Flow pipe; 18. Exhaust bend; 19. Mounting ring; 20. Seal 21. Plate; 22. Elastic support frame; 23. Support ring; 24. Return pipe; 25. Connecting pipe; 26. Recycling box; 27. Support pipe; 28. Conical cover; 29. ​​Dustproof net; 30. Drive motor; 31. Drive shaft; 32. First blade; 33. Second blade; 34. Gas supply pipe; 35. Exhaust valve; 36. Second stop bar; 37. Rectangular bracket; 38. Pad strip; 39. Spherical plate; 40. Connection port; 51. Fixing plate. Detailed Implementation

[0045] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0046] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the devices are connected to each other and their relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of the present invention, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0047] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0048] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0049] References to "one embodiment" or "some embodiments" as used in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the invention. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized.

[0050] Example 1: Refer to Figure 1-11 The energy storage battery includes a battery box 1, and a battery pack 2 is fixedly mounted inside the battery box 1 via a rectangular bracket 36. Multiple spacers 37 are evenly spaced on the bottom of the battery pack 2, and the bottoms of these spacers 37 are directly fixed to the inner bottom wall of the battery box 1. The rectangular bracket 36 and the multiple spacers 37 together provide stable mounting and cushioning support for the battery pack 2. On one side of the battery pack 2, multiple vent valves 34 for releasing gas are evenly spaced.

[0051] like Figure 4-5 As shown, a sealing cover is tightly fitted at the top opening of the battery box 1. This sealing cover consists of a top cover plate 3 and a partition cover plate 4, both of which are tightly fitted to the inner wall of the battery box 1, forming a sealed upper space. On the top surface of the partition cover plate 4, external serpentine slats 6 and internal serpentine slats 7 arranged in a certain shape are fixedly installed. The tops of the external serpentine slats 6 and the tops of the internal serpentine slats 7 are fixedly connected to the bottom of the top cover plate 3, thereby forming a continuous and specific ventilation duct between the partition cover plate 4 and the top cover plate 3, together with the external serpentine slats 6 and the internal serpentine slats 7.

[0052] like Figure 5-6 As shown, the partition cover 4 has multiple vent holes 5 spaced at equal intervals. These vent holes 5 connect the lower space where the battery pack 2 is located with the upper space formed by the top cover 3 and the partition cover 4. When acid mist gas is generated during the charging and discharging process of the battery pack 2, the acid mist will enter the upper space through these vent holes 5. In order to guide the flow path of the acid mist gas, a first baffle 8 and a second baffle 35 are also fixedly installed on the top of the partition cover 4. The first baffle 8 is fixedly connected to one side inner wall of the battery box 1, the bottom of the top cover 3, and the outer serpentine slat 6, respectively. The second baffle 35 is fixedly connected to the other side inner wall of the battery box 1, the bottom of the top cover 3, and the inner serpentine slat 7, respectively. The cooperation of these two sets of baffles and serpentine slats ensures that the acid mist gas entering from the vent holes 5 must flow along the ventilation channel defined by the outer serpentine slat 6 and the inner serpentine slat 7.

[0053] like Figure 5-7 As shown, a cooling mechanism is provided for cooling and condensing the flowing acid mist in this energy storage battery. This cooling mechanism includes multiple first heat exchange tubes 9. These first heat exchange tubes 9 are evenly spaced and pass through and are fixedly connected to the outer serpentine slats 6 and inner serpentine slats 7, thus being immersed in a ventilation duct. One end of all the first heat exchange tubes 9 is connected to the same first connecting pipe 10. The supply of cold air is handled by an air intake assembly installed on one side of the battery box 1. The air intake assembly processes outside air and delivers it to the first connecting pipe 10, whereupon the cold air is dispersed into the individual first heat exchange tubes 9. When the high-temperature acid mist gas flows through the ventilation duct and comes into contact with the low-temperature first heat exchange tubes 9, some of the electrolyte vapor in the acid mist condenses, achieving initial cooling and liquefaction.

[0054] like Figure 1-3 As shown, the intake assembly is specifically configured as follows. Two fixing plates 40 are fixedly installed on one side of the battery box 1. These two fixing plates 40 together support and fix a support tube 26. A conical shroud 27 is fixedly installed at the outer end of the support tube 26. The opening of the conical shroud 27 is covered with a dustproof net 28 for filtering the intake air. A fan mechanism is installed at the other end of the support tube 26. The fan mechanism includes a drive motor 29 fixedly installed at the end of the support tube 26. The output shaft of the drive motor 29 extends into the support tube 26 and is fixedly connected to a drive shaft 30. The end of the drive shaft 30 extends into the conical shroud 27 and is fitted with a first blade 31. In addition, multiple second blades 32 are fixedly fitted at equal intervals on the section of the drive shaft 30 located inside the support tube 26. When the drive motor 29 is started, it drives the drive shaft 30, the first blade 31, and the second blades 32 to rotate synchronously. The first blade 31 acts as an intake fan, drawing outside air into the support pipe 26, while multiple second blades 32 pressurize the intake air, causing it to be transported forward along the support pipe 26. Multiple air delivery pipes 33 are fixedly connected at equal intervals to the inner top wall of the support pipe 26, with the tips of these pipes extending into and fixedly connected to the first connecting pipe 10. The pressurized air is then continuously transported to the first connecting pipe 10 through these air delivery pipes 33.

[0055] like Figure 6-9 As shown, the gas after preliminary condensation and the uncondensed acid mist need further separation and treatment. For this purpose, a separation component is installed on the partition cover 4. The core of the separation component is a condensation chamber 12 that runs through and is fixedly installed on the partition cover 4. One side of the outer serpentine slats 6 and one side of the inner serpentine slats 7 are both fixedly connected to the condensation chamber 12, and the end of the ventilation duct formed by the two is connected to an air inlet 13 opened on the side wall of the condensation chamber 12, allowing the pre-treated acid mist to enter the condensation chamber 12.

[0056] like Figure 6-7 As shown, on the partition cover plate 4, directly below each of the first heat exchange tubes 9, multiple recovery boxes 25 are fixedly installed at equal intervals. On one side of the inner wall of the condenser 12, multiple connecting pipes 24 are fixedly installed at equal intervals, one end of each connecting pipe 24 extending into a corresponding recovery box 25 and fixedly connected to its bottom inner wall. After initial cooling by the first heat exchange tubes 9, the liquefied electrolyte droplets drip downwards and are collected by the recovery boxes 25 below. The collected electrolyte then flows into the condenser 12 through the connecting pipes 24.

[0057] This application can be used in the field of battery technology, or in other fields applicable to this application.

[0058] Example 2: Reference Figure 5-11 An improvement upon Embodiment 1: a lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions. Applied to the field of battery technology, this energy storage battery also includes a cooling component to achieve deep condensation of acid mist. The cooling component includes a second connecting pipe 11 fixedly connected to the other end of all the first heat exchange tubes 9. Multiple second heat exchange tubes 14 are fixedly installed at equal intervals on one side of the inner wall of the second connecting pipe 11. These second heat exchange tubes 14 penetrate the wall of the condensing chamber 12 and are fixedly connected to it, thus exposing a portion of their tube sections to the internal space of the condensing chamber 12. Cooling air flowing from the first heat exchange tubes 9, having absorbed some heat, enters the second connecting pipe 11 and is distributed to the interior of each second heat exchange tube 14 for continued flow. When residual acid mist gas entering the condensing chamber 12 from the air inlet 13 comes into contact with the cooler walls of these second heat exchange tubes 14, the remaining electrolyte vapor in the acid mist is completely condensed and liquefied, and the liquefied electrolyte collects at the bottom of the condensing chamber 12.

[0059] like Figure 7-9 As shown, the exhaust system is responsible for expelling the final treated clean gas and the cooling air that has completed heat exchange from the system. The exhaust system includes an outlet pipe 15, which is fixedly connected to the other end of all the second heat exchange tubes 14 to collect the air flowing out of the second heat exchange tubes 14. One end of the outlet pipe 15 is connected to an exhaust bend 18, through which the gas is finally discharged to the atmosphere. To ensure that the gas, after thorough dehydration, can also be smoothly discharged from the condenser 12, multiple mounting pipes 16 are fixedly installed at equal intervals on the inner wall of the condenser 12. One end of each mounting pipe 16 extends to the outside of the condenser 12 and is connected to a flow pipe 17. One end of the flow pipe 17 extends into the outlet pipe 15 and is fixedly connected to the inner wall of the outlet pipe 15. Thus, the gas in the condenser 12 can sequentially enter the outlet pipe 15 through the mounting pipes 16 and the flow pipe 17, mix with the cooling air discharged from the second heat exchange tubes 14, and then be discharged together through the exhaust bend 18.

[0060] like Figure 9 As shown, an automatic sealing structure for pressure control is installed inside the exhaust bend 18. Specifically, a mounting ring 19 is fixed inside the exhaust bend 18, and a support ring 22 is fixed inside the mounting ring 19. A sealing plate 20 is placed on top of the support ring 22. A spherical plate 38 is fixedly connected to the bottom of the sealing plate 20. The spherical plate 38 passes through the central hole of the support ring 22 and fits against the inner wall of the support ring 22, thus providing a seal under natural conditions. The sealing plate 20 has multiple connection ports 39. At the top of the support ring 22, corresponding to the position of each connection port 39, an elastic support frame 21 is fixedly installed. The top of the elastic support frame 21 extends upward through the connection port 39 and is fixedly connected to the top of the sealing plate 20. When the internal air pressure of the system is normal or low, under the elastic force of the elastic support frame 21 and gravity, the spherical plate 38 fits tightly against the support ring 22, sealing the exhaust passage. When the gas pressure inside the system increases (e.g., during gas processing or due to temperature rise), the pressure pushes the sealing plate 20 and the spherical plate 38 upwards, causing the spherical plate 38 to separate from the support ring 22 and opening the exhaust channel. After the gas is discharged, the internal gas pressure drops, and the elastic restoring force of the elastic support frame 21 pushes the sealing plate 20 and the spherical plate 38 downwards to reset, resealing the channel, thereby achieving pressure balance and explosion-proof function.

[0061] like Figure 5 and Figure 7 As shown, finally, multiple return pipes 23 are fixedly installed at equal intervals on the inner wall of the other side of the bottom of the condenser 12. The bottom ends of these return pipes 23 all extend downward, pass through the partition cover plate 4, and are fixedly connected to the liquid inlet of the battery pack 2. In this way, all the condensed electrolyte collected in the condenser 12 and flowing in through the connecting pipe 24 can be automatically returned to the battery pack 2 by gravity through the return pipes 23, completing the recovery and recycling of electrolyte and effectively delaying the loss of electrolyte during battery use.

[0062] A battery management system is also installed inside the battery box 1. The battery management system is electrically connected to the drive motor and is used to control the start, stop and speed of the drive motor according to the charging and discharging status of the battery pack and / or the pressure sensor signal inside the battery box, so as to activate the cooling and gas-liquid separation functions as needed.

[0063] In this technical solution, all components that come into contact with acid mist or condensed electrolyte are made of materials resistant to sulfuric acid corrosion, such as plastics, ceramics, or specific grades of stainless steel.

[0064] However, as is well known to those skilled in the art, the working principles and wiring methods of the battery pack 2 and the drive motor 29 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0065] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions, characterized in that, include: A battery box (1) is provided, and a battery pack (2) is fixedly installed inside the battery box (1). Multiple exhaust valves (34) are provided at equal intervals on one side of the battery pack (2). The sealing component is sealed and snapped into the top opening of the battery box (1), including a top cover plate (3) and a partition cover plate (4). Both are sealed and snapped into the inner wall of the battery box (1). An external serpentine strip (6) and an internal serpentine strip (7) are fixedly installed on the top of the partition cover plate (4). The top of both are fixedly connected to the bottom of the top cover plate (3) and enclosed to form a ventilation channel. Multiple ventilation holes (5) are opened at equal intervals on the partition cover plate (4). The cooling mechanism is connected to the external serpentine slats (6) and the internal serpentine slats (7), and extends to the outside of the battery box (1) on one side and is fixedly connected to the battery box (1); The separation component is installed on the partition cover plate (4) and connected to the cooling mechanism, and its bottom is connected to the liquid inlet end of the battery pack (2); Among them, the acid mist generated by the discharge of the battery pack (2) enters between the two cover plates through the vent (5), is condensed by the cooling mechanism, and then the gas-liquid separation is completed by the separation component. The liquefied electrolyte is returned to the battery pack (2) and pressure balance and explosion prevention are achieved at the same time.

2. The lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions as described in claim 1, characterized in that, The cooling mechanism includes multiple first heat exchange tubes (9), which are equally spaced through the outer serpentine strip (6) and the inner serpentine strip (7) and are fixedly connected to both. One end of each tube is fixedly connected to a first connecting pipe (10). The mechanism also includes an air intake assembly installed on one side of the battery box (1). One side of the air intake assembly extends between the two cover plates and is fixedly connected to the first connecting pipe (10). The other end of the first heat exchange tubes (9) is connected to the separation component. The air intake assembly delivers external gas to the first connecting pipe (10), which is then diverted and introduced into each of the first heat exchange tubes (9) to maintain the low temperature of the tube wall. This allows the acid mist to come into contact with the first heat exchange tubes (9) when it flows through the air duct, thus achieving initial condensation and liquefaction.

3. The lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions according to claim 2, characterized in that, The top of the partition cover (4) is fixedly installed with a first baffle (8) and a second baffle (35). The first baffle (8) is fixedly connected to the inner wall of one side of the battery box (1), the bottom of the top cover (3) and the outer serpentine strip (6) respectively. The second baffle (35) is fixedly connected to the inner wall of the other side of the battery box (1), the bottom of the top cover (3) and the inner serpentine strip (7) respectively. The two baffles limit the flow path of acid mist, ensuring that acid mist flows only along the ventilation duct.

4. The lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions according to claim 3, characterized in that, The air intake assembly includes two fixed plates (40), which are fixed to one side of the battery box (1) and are connected to a support pipe (26). A conical cover (27) is fixedly installed at one end of the support pipe (26), and a dustproof net (28) is fixedly installed at the opening of the conical cover (27). A fan mechanism is installed at the other end, and the actuating end of the fan mechanism extends into the inside of the support pipe (26). Multiple air supply pipes (33) are fixedly installed at equal intervals on the inner wall of the top of the support pipe (26). The top end of the air supply pipe (33) extends into the inside of the first connecting pipe (10) and is fixedly connected to the first connecting pipe (10). External gas is drawn in and pressurized through the fan mechanism and stably transported to the first connecting pipe (10) through the air supply pipe (33).

5. The lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions according to claim 4, characterized in that, The wind mechanism includes a drive motor (29) fixedly installed at the end of the support pipe (26). The output shaft of the drive motor (29) extends into the support pipe (26) and is fixedly installed with a transmission shaft (30). One end of the transmission shaft (30) extends into the conical cover (27) and is fixedly installed with a first blade (31). Multiple second blades (32) located inside the support pipe (26) are also fixedly mounted on the transmission shaft (30) at equal intervals. The drive motor (29) drives the transmission shaft (30) to drive the two blades to rotate synchronously. The first blade (31) draws in external gas, and the second blade (32) pressurizes the gas to achieve stable delivery.

6. The lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions according to claim 1, characterized in that, The separation component includes a condenser (12), which penetrates the partition cover plate (4) and is fixedly connected to the partition cover plate (4). Multiple connecting pipes (24) are fixedly installed at equal intervals on one side inner wall of the condenser (12). It also includes multiple recovery boxes (25), which penetrate the partition cover plate (4) at equal intervals and are fixedly connected to the partition cover plate (4). They are located below each first heat exchange tube (9). One end of the connecting pipe (24) extends into the corresponding recovery box (25) and is fixedly connected to the bottom inner wall of the recovery box (25). The initially condensed electrolyte falls into the recovery box (25) and flows into the condenser (12) through the connecting pipe (24) for centralized collection.

7. The lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions according to claim 6, characterized in that, A cooling assembly is connected through the condenser (12). The cooling assembly includes a second connecting pipe (11) that is fixedly connected to one end of each first heat exchange tube (9). Multiple second heat exchange tubes (14) are fixedly installed at equal intervals on the inner wall of one side of the second connecting pipe (11). The second heat exchange tubes (14) pass through the condenser (12) and are fixedly connected to the condenser (12). One end of the tube is connected to an exhaust component. The top of the exhaust component passes through the top cover plate (3) and is fixedly connected to the top cover plate (3). The gas in the first heat exchange tube (9) flows into the second connecting pipe (11) and is diverted by the second heat exchange tube (14) to cool the acid mist in the condenser (12) for a second time.

8. The lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions according to claim 7, characterized in that, The exhaust component includes an exhaust pipe (15), which is fixedly connected to one end of each of the second heat exchange tubes (14), and an exhaust bend (18) is fixedly installed at the other end. It also includes multiple mounting pipes (16), which are fixedly installed at equal intervals on the inner wall of the condenser (12), with one end extending to the outside of the condenser (12) and a flow pipe (17) fixedly installed together. One end of the flow pipe (17) extends into the interior of the exhaust pipe (15) and is fixedly connected to the exhaust pipe (15). The gas after secondary cooling flows into the exhaust pipe (15) through the mounting pipe (16) and the flow pipe (17), and is discharged together with the gas discharged from the second heat exchange tubes (14) through the exhaust bend (18).

9. The lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions according to claim 8, characterized in that, An installation ring (19) is fixedly installed inside the exhaust bend (18). A support ring (22) is fixedly installed inside the installation ring (19). A sealing plate (20) is provided inside the installation ring (19). The sealing plate (20) is attached to the top of the support ring (22). A spherical plate (38) is fixedly installed at the bottom of the sealing plate (20). The spherical plate (38) passes through the support ring (22) and is attached to the inner wall of the support ring (22). Multiple connection ports (39) are opened at equal intervals on the sealing plate (20). Multiple elastic support frames (21) are fixedly installed on the top of the support ring (22). The elastic support frames (21) are located in the corresponding connection ports (39). The top extends to the top of the sealing plate (20) and is fixedly connected to the sealing plate (20). When the air pressure rises, the spherical plate (38) is pushed to move upward to exhaust air. After the air pressure is restored, the elastic support frame (21) drives the sealing plate (20) to reset and seal.

10. The lead-carbon energy storage battery with built-in gas-liquid separation, reflux, and pressure balance explosion-proof functions according to claim 1, characterized in that, A rectangular bracket (36) is fixedly installed on the bottom inner wall of the battery box (1), and the battery pack (2) is fixedly installed on the rectangular bracket (36). Multiple pads (37) are fixedly installed at equal intervals on the bottom of the battery pack (2), and the bottom of the pads (37) is fixedly connected to the bottom inner wall of the battery box (1). The rectangular bracket (36) enables the battery pack (2) to be stably installed, and the pads (37) provide buffer protection.

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