阅读说明：本技术 带有排气回流结构的铅酸蓄电池 (Lead-acid storage battery with exhaust backflow structure ) 是由 王莉娟 于 2019-09-12 设计创作，主要内容包括：带有排气回流结构的铅酸蓄电池,包括所述第一导气通道设有多条,所述第二导气通道设有一条；多个所述第一导气通道的出口端均连通至所述第二导气通道,所述第一导气通道、所述第二导气通道之间形成向上的连续弯折斜面结构,所述第一导气通道的水平高度低于所述第二导气通道的水平高度；所述第一导气通道包括主导流孔和辅助导流孔,所述主导流孔和所述辅助导流孔均开设于所述导气盒的底面,所述辅助导流孔用以加快电解液的回流速度；本发明通过设置的多个弯折结构、阻拦结构能够大幅度降低电解液的流动速度,起到很好的缓冲效果,使得初始速度小的电解液能够快速回流；并且各个导流区之间的高度逐渐增大,形成多条斜面结构。(The lead-acid storage battery with the exhaust backflow structure comprises a plurality of first air guide channels, and one second air guide channel; the outlet ends of the first air guide channels are communicated to the second air guide channels, an upward continuous bent inclined plane structure is formed between the first air guide channels and the second air guide channels, and the horizontal height of the first air guide channels is lower than that of the second air guide channels; the first air guide channel comprises a main flow guide hole and an auxiliary flow guide hole, the main flow guide hole and the auxiliary flow guide hole are both arranged on the bottom surface of the air guide box, and the auxiliary flow guide hole is used for accelerating the backflow speed of the electrolyte; the flow speed of the electrolyte can be greatly reduced through the plurality of bending structures and the blocking structures, a good buffering effect is achieved, and the electrolyte with low initial speed can quickly flow back; and the height between each flow guide area is gradually increased to form a plurality of inclined plane structures.)

1. Lead-acid storage battery with exhaust reflux structure, its characterized in that: comprises an electrolytic cell (4), the top of the electrolytic cell (4) is covered with a gas guide box (1); the gas guide box comprises a gas guide box body (1), a plurality of gas guide areas (2) are arranged in the gas guide box body (1), a first gas guide channel (21) and a second gas guide channel (22) are arranged in each gas guide area (2), the first gas guide channel (21) is used for discharging electrolyte and gas and refluxing the electrolyte, the second gas guide channel (22) is used for discharging gas and refluxing the electrolyte, the number of the first gas guide channels (21) is multiple, and the number of the second gas guide channels (22) is one; the outlet ends of the first air guide channels (21) are communicated to the second air guide channels (22), an upward continuous bending inclined plane structure is formed between the first air guide channels (21) and the second air guide channels (22), and the horizontal height of the first air guide channels (21) is lower than that of the second air guide channels (22);

the first air guide channel (21) comprises a main flow guide hole (211) and an auxiliary flow guide hole (212), the main flow guide hole (211) and the auxiliary flow guide hole (212) are arranged on the bottom surface of the air guide box (1), and the auxiliary flow guide hole (212) is used for accelerating the backflow speed of electrolyte.

2. The lead-acid battery with an exhaust gas recirculation structure according to claim 1, characterized in that: the aperture of the auxiliary diversion hole (212) is smaller than that of the main diversion hole (211), a plurality of backflow diversion plates (2121) are installed on the inner wall of the auxiliary diversion hole (212) from top to bottom in a staggered mode, the backflow diversion plates (2121) are arranged obliquely downwards, and the backflow diversion plates (2121) are used for reducing liquid outlet amount.

3. The lead-acid battery with an exhaust gas recirculation structure according to claim 2, characterized in that: the first air guide channel (21) further comprises a first partition plate (213), a second partition plate (214), a first flow guide area (215), a second flow guide area (216) and a third flow guide area (217), the first partition plate (213) and the second partition plate (214) are arranged inside the air guide box (1), a liquid discharge sealing structure with one end opened is enclosed between the first partition plate (213) and the second partition plate (214), the liquid discharge sealing structure comprises a first flow guide area (215), a second flow guide area (216) and a third flow guide area (217) inside, the main flow guide hole (211) and the auxiliary flow guide hole (212) are arranged in the first flow guide area (215), the second flow guide area (216) and the third flow guide area (217) are communicated in sequence, and the heights among the first flow guide area (215), the second flow guide area (216) and the third flow guide area (217) are continuously increased, the outlet of the third flow guide area (217) is an opening of the liquid discharge sealing structure, and the first flow guide area (215), the second flow guide area (216) and the third flow guide area (217) are used for slowing down the flow speed of the electrolyte and prolonging the flow path.

4. A lead-acid battery with an exhaust gas recirculation structure according to claim 3, characterized in that: the flow direction of the first flow guide area (215) is opposite to that of the second flow guide area (216), the third flow guide area (216) is of a right-angle bending structure, and a plurality of convex buffer structures are distributed in the first flow guide area (215), the second flow guide area (216) and the third flow guide area (217).

5. A lead-acid battery with an exhaust gas recirculation structure according to claim 3 or 4, characterized in that: the third flow guide area (217) is internally provided with a blocking mechanism (3), the blocking mechanism (3) comprises a plurality of fixed blocking plates (31) and a plurality of movable blocking plates (32), the fixed blocking plates (31) are obliquely arranged, the fixed blocking plates (31) are distributed in the third flow guide area (217) in a staggered manner along the gas discharge direction, the oblique direction of the fixed blocking plates (31) is opposite to the gas discharge direction, a gap is reserved between the outer end of each fixed blocking plate (31) and the inner wall of the third flow guide area (217), each movable blocking plate (32) is arranged between the fixed blocking plates (31), each movable blocking plate (32) is rotatably connected with the inner wall of the third flow guide area (217), the outer end of each movable blocking plate (32) is provided with a flow guide net (321), and the outer end of each movable blocking plate (32) is connected with a driving mechanism (5), the driving mechanism (5) is used for driving the movable blocking plate (32) to rotate, and the movable blocking plate (32) is used for changing the flow of the electrolyte.

6. The lead-acid battery with an exhaust gas recirculation structure according to claim 5, characterized in that: actuating mechanism (5) include amplitude detection part (51), rotating electrical machines (52) and transfer line (53), amplitude detection part (51) rotating electrical machines (52) all install in the surface of leading gas box (1), amplitude detection part (51) electric connection rotating electrical machines (52), rotating electrical machines (52) pass through transfer line (53) are connected activity is stopped sideboard (32), amplitude detection part (51) are used for detecting the vibrations range of electrolysis trough (4).

7. The lead-acid battery with an exhaust gas recirculation structure according to claim 6, characterized in that: the second air guide channel (22) comprises an air exhaust hole (221), a third partition plate (222), a fourth air guide area (223) and an air filtering sheet main body (224), the third partition plate (222) is arranged in the air guide box (1), the fourth air guide area (223) with one open end is formed between the third partition plate (222) and the second partition plate (214), the fourth air guide area (223) is communicated with the third air guide area (217), the fourth air guide area (223) is of a right-angle bending structure, an air exhaust hole (221) is formed in the innermost end of the fourth air guide area (223), the air exhaust hole (221) is arranged at the highest point of the fourth air guide area (223), the height of the fourth air guide area (223) is larger than that of the third air guide area (217), and the air filtering sheet main body (224) is embedded in the air exhaust hole (221).

Technical Field

The invention belongs to the technical field of lead-acid storage batteries, and particularly relates to a lead-acid storage battery with an exhaust backflow structure.

Background

The lead-acid storage battery is filled with a certain volume of flowable electrolyte, and the electrolyte can generate gas in the charging and discharging processes of the lead-acid storage battery, wherein the gas mainly comprises sulfuric acid mist, and a small amount of lead, hydrogen and oxygen are clamped in the gas; due to the impact of gas and the influence of shaking of the lead storage battery, the electrolyte can be discharged into an exhaust and reflux structure; the exhaust and reflux structure needs smooth exhaust and electrolyte can rapidly reflux into the battery jar so as to prevent the battery from bulging caused by unsmooth exhaust or the electrolyte from refluxing too slowly and soaking the air filter for a long time to cause the leakage of the electrolyte and the like;

at present lead acid battery arranges simple, single when design exhaust and reflux system mostly, has only several simple ribs, blocks that electrolyte and overflows speed bad effect, and the backward flow area is less, and the backward flow speed is not enough, and when a large amount of electrolyte gushes out, the electrolyte that overflows splashes air filter department easily, has increaseed the outside possibility of liquid effusion battery.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a lead-acid storage battery with an exhaust backflow structure, and the specific technical scheme is as follows:

the lead-acid storage battery with the exhaust backflow structure comprises an electrolytic cell, wherein the top of the electrolytic cell is covered with a gas guide box; the gas guide box is characterized in that a plurality of gas exhaust areas are formed in the gas guide box, a first gas guide channel and a second gas guide channel are formed in each gas exhaust area, the first gas guide channel is used for discharging electrolyte and gas and refluxing the electrolyte, the second gas guide channel is used for discharging gas and refluxing the electrolyte, the number of the first gas guide channels is multiple, and the number of the second gas guide channels is one; the outlet ends of the first air guide channels are communicated to the second air guide channels, an upward continuous bent inclined plane structure is formed between the first air guide channels and the second air guide channels, and the horizontal height of the first air guide channels is lower than that of the second air guide channels; the first air guide channel comprises a main flow guide hole and an auxiliary flow guide hole, the main flow guide hole and the auxiliary flow guide hole are both formed in the bottom surface of the air guide box, and the auxiliary flow guide hole is used for accelerating the backflow speed of electrolyte.

Further, supplementary water conservancy diversion hole aperture is less than the aperture of leading water conservancy diversion hole, the inner wall in supplementary water conservancy diversion hole is from top to bottom crisscross a plurality of backward flow guide plates of installing, backward flow guide plate slope sets up downwards, backward flow guide plate is used for reducing out the liquid measure.

Further, the first air guide channel further comprises a first partition plate, a second partition plate, a first flow guide area, a second flow guide area and a third flow guide area, wherein the first partition plate and the second partition plate are arranged inside the air guide box, a liquid drainage sealing structure with one end opening is formed by the first partition plate and the second partition plate in a surrounding mode, the liquid drainage sealing structure comprises a first flow guide area, a second flow guide area and a third flow guide area, the main flow guide hole and the auxiliary flow guide hole are arranged in the first flow guide area, the second flow guide area and the third flow guide area are sequentially communicated, the height among the first flow guide area, the second flow guide area and the third flow guide area is continuously increased, an outlet of the third flow guide area is an opening of the liquid drainage sealing structure, and the first flow guide area, the second flow guide area and the third flow guide area are used for reducing the flow speed of electrolyte, Extending the flow path.

Furthermore, the flow direction of the first flow guide area is opposite to that of the second flow guide area, the third flow guide area is of a right-angle bending structure, and a plurality of convex buffer structures are distributed in the first flow guide area, the second flow guide area and the third flow guide area.

Furthermore, a plurality of fixed baffle plates and a plurality of movable baffle plates are arranged in the third flow guide area, the fixed baffle plates are distributed in the third flow guide area in a staggered manner along the gas discharge direction, the inclination direction of the fixed baffle plates is opposite to the gas discharge direction, a gap is reserved between the outer end of each fixed baffle plate and the inner wall of the third flow guide area, each movable baffle plate is arranged between the fixed baffle plates, the movable baffle plates are rotatably connected with the inner walls of the third flow guide area, a flow guide net is arranged at the outer end of each movable baffle plate, a driving mechanism is connected to the outer portion of each movable baffle plate, the driving mechanism is used for driving the movable baffle plates to rotate, and the movable baffle plates are used for changing the flow of the electrolyte.

Further, actuating mechanism includes amplitude detection part, rotation motor and transfer line, amplitude detection part the rotation motor is all installed in the surface of leading the gas box, amplitude detection part electric connection the rotation motor, the rotation motor passes through the transfer line is connected the activity is stopped the sideboard, amplitude detection part is used for detecting the vibration amplitude of electrolysis trough.

Further, the second air guide channel comprises an air exhaust hole, a third partition plate, a fourth flow guide area and an air filter main body, the third partition plate is arranged inside the air guide box, a fourth flow guide area with an opening at one end is formed between the third partition plate and the second partition plate, the fourth flow guide area is communicated with the third flow guide area, the fourth flow guide area is of a right-angle bending structure, an air exhaust hole is formed in the innermost end of the fourth flow guide area, the air exhaust hole is formed in the highest point of the fourth flow guide area, the height of the fourth flow guide area is larger than that of the third flow guide area, and the air filter main body is embedded into the air exhaust hole.

The invention has the beneficial effects that:

1. the flow speed of the electrolyte can be greatly reduced through the plurality of bending structures and the blocking structures, a good buffering effect is achieved, and the electrolyte with low initial speed can quickly flow back; the height between the flow guide areas is gradually increased to form a plurality of upward inclined surface structures, so that the resistance borne by the electrolyte in the flowing process is gradually increased, and the electrolyte is effectively prevented from flowing to the exhaust hole;

2. the auxiliary flow guide holes are additionally arranged to improve the liquid return area and accelerate the liquid return speed, and the backflow guide plates are arranged in the auxiliary flow guide holes to prevent the auxiliary flow guide holes of the electrolyte from overflowing, so that the backflow speed of the electrolyte is greatly accelerated on the premise of ensuring that the discharge amount of the electrolyte is rarely increased;

3. the driving mechanism and the blocking mechanism can drive the movable blocking plate to rotate under the condition that the vibration amplitude of the lead storage battery is large, on the premise that gas can be slowly discharged, the electrolyte circulation is reduced to the maximum extent, and the electrolyte cannot overflow to the air filter disc when the lead storage battery vibrates to a large extent.

Drawings

FIG. 1 shows a schematic of the exhaust gas recirculation arrangement of the present invention;

FIG. 2 illustrates a schematic view of a first gas guide channel structure of the present invention;

FIG. 3 shows a schematic diagram of a lead acid battery with a vent recirculation arrangement of the present invention;

FIG. 4 shows an enlarged schematic view of the structure at A of the present invention;

FIG. 5 shows a schematic view of the construction of the movable blocking plate of the present invention;

FIG. 6 is a schematic view showing an electrolyte and gas discharge state of the present invention;

FIG. 7 is a schematic view showing a state of electrolyte backflow according to the present invention;

FIG. 8 is a schematic view showing the state of electrolyte backflow in the amplitude state of the present invention;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The lead-acid storage battery with the exhaust gas reflux structure comprises an electrolytic bath 4, wherein the top of the electrolytic bath 4 is covered with a gas guide box 1; the gas guide box 1 is an area for discharging gas and also an area for blocking and refluxing discharged electrolyte;

the gas guide box comprises a gas guide box body 1 and is characterized in that a plurality of gas guide areas 2 are arranged in the gas guide box body 1, a first gas guide channel 21 and a second gas guide channel 22 are arranged in each gas guide area 2, the first gas guide channel 21 is used for discharging electrolyte and gas and refluxing the electrolyte, the second gas guide channel 22 is used for discharging gas and refluxing the electrolyte, the number of the first gas guide channels 21 is multiple, and the number of the second gas guide channels 22 is one; the plurality of exhaust areas 2 and the plurality of first gas guide channels 21 are designed to accelerate the exhaust speed of the gas, and simultaneously, the backflow area can be increased, and the backflow speed and the backflow amount are improved;

the outlet ends of the first air guide channels 21 are all communicated to the second air guide channels 22, and the second air guide channels are used for converging the air conveyed by the first air guide channels 21 and then discharging the air;

an upward continuous bending inclined plane structure is formed between the first air guide channel 21 and the second air guide channel 22, and the horizontal height of the first air guide channel 21 is lower than that of the second air guide channel 22; the design of the upward inclined surface can ensure that the electrolyte moves obliquely and upwards when moving, the resistance borne by the electrolyte is increased, the moving speed of the electrolyte can gradually decrease under the action of the self gravity, and the electrolyte can flow back into the electrolytic cell after falling to a certain degree, so that the electrolyte is effectively prevented from overflowing, and the air filter is ensured to be in a dry state;

the first air guide channel 21 comprises a main flow guide hole 211 and an auxiliary flow guide hole 212, the main flow guide hole 211 and the auxiliary flow guide hole 212 are both arranged on the bottom surface of the air guide box 1, and the auxiliary flow guide hole 212 is used for accelerating the backflow speed of the electrolyte; the auxiliary diversion holes 212 can further increase the backflow area and accelerate the backflow speed.

As an improvement of the above technical solution, the aperture of the auxiliary flow guide hole 212 is smaller than that of the main flow guide hole 211, and the aperture of the auxiliary flow guide hole 212 is smaller to ensure that the liquid discharge area is not increased too much on the basis of increasing the backflow area, so as to avoid the electrolyte discharge amount from being increased too much;

a plurality of reflux deflectors 2121 are installed on the inner wall of the auxiliary flow guide hole 212 in a staggered manner from top to bottom, the reflux deflectors 2121 are arranged obliquely downwards, and the reflux deflectors 2121 are used for reducing the liquid outlet amount; the downward inclined reflux guide plate 2121 is used for ensuring that the electrolyte can normally reflux, if the electrolyte in the electrolytic cell is discharged from the auxiliary guide hole 212, the electrolyte is firstly blocked by the reflux guide plate 2121, so that the electrolyte is blocked back into the electrolytic cell, and part of the electrolyte entering the reflux guide plate 2121 is discharged downwards along the inclined surface of the reflux guide plate 2121 under the action of gravity, so that the electrolyte is effectively prevented from flowing out too much from the auxiliary guide hole 212, and the reflux speed of the electrolyte is greatly increased on the premise of ensuring that the discharge amount of the electrolyte is rarely increased; in order to ensure that the gas can be discharged normally and rapidly, the main flow guide hole 211 is not provided with the reflux guide plate 2121.

As an improvement of the above technical solution, the first gas guide channel 21 further includes a first partition plate 213, a second partition plate 214, a first flow guide area 215, a second flow guide area 216, and a third flow guide area 217, the first partition plate 213 and the second partition plate 214 are both disposed inside the gas guide box 1, a liquid discharge sealing structure with an open end is defined between the first partition plate 213 and the second partition plate 214, the liquid discharge sealing structure is a gas and liquid circulation area, and the area is a closed chamber;

the drainage sealing structure comprises a first flow guide area 215, a second flow guide area 216 and a third flow guide area 217 inside, the main flow guide hole 211 and the auxiliary flow guide hole 212 are arranged in the first flow guide area 215, the second flow guide area 216 and the third flow guide area 217 are sequentially communicated, the height among the first flow guide area 215, the second flow guide area 216 and the third flow guide area 217 is continuously increased, an outlet of the third flow guide area 217 is an opening of the drainage sealing structure, and the first flow guide area 215, the second flow guide area 216 and the third flow guide area 217 are used for reducing the flow speed of electrolyte and prolonging the flow path; the path of the electrolyte to be moved can be prolonged by arranging a plurality of flow guide areas, so that the movement resistance of the electrolyte is further increased; the height between the flow guide areas is increased to form an inclined surface structure, so that the backflow speed is increased.

As an improvement of the above technical solution, the flow direction of the first flow guiding area 215 is opposite to the flow direction of the second flow guiding area 216, the third flow guiding area 216 is of a right-angle bending structure, and a plurality of convex buffer structures are distributed in the first flow guiding area 215, the second flow guiding area 216 and the third flow guiding area 217; a bending structure is formed between the flow guide areas to further prolong the path of the electrolyte to be walked and increase the resistance, and the raised buffer structure is used for blocking and buffering the electrolyte and reducing the flow speed of the electrolyte.

As an improvement of the above technical solution, a plurality of blocking mechanisms 3 are installed inside the third flow guiding area 217, each blocking mechanism 3 includes a fixed blocking plate 31 and a movable blocking plate 32, the fixed blocking plates 31 are inclined, the fixed blocking plates 31 are distributed inside the third flow guiding area 217 in a staggered manner along a gas discharging direction, the inclined direction of the fixed blocking plates 31 is opposite to the gas discharging direction, and the fixed blocking plates 31 are used for blocking flowing electrolyte from discharging flowing gas; a plurality of the blocking plates are arranged in a staggered mode to increase the blocking effect;

a gap is reserved between the outer end of the fixed baffle plate 31 and the inner wall of the third flow guide area 217 and is used as a flow channel of electrolyte and gas;

the movable barrier plates 32 are arranged between the fixed barrier plates 31, the movable barrier plates 32 are rotatably connected with the inner wall of the third flow guide area 217, the outer end parts of the movable barrier plates 32 are provided with flow guide nets 321, the outer parts of the movable barrier plates 32 are connected with driving mechanisms 5, the driving mechanisms 5 are used for driving the movable barrier plates 32 to rotate, and the movable barrier plates 32 are used for changing the flow of the electrolyte; the movable barrier plate 32 can adjust the flow of electrolyte and gas according to environmental changes, the movable barrier plate 32 rotates, the gap between the movable barrier plate 32 and the inner wall of the third flow guide area 217 can be changed along with the change of the gap, the electrolyte and the gas are discharged through the gap and the flow guide net 321, when the movable barrier plate 32 blocks the channel of the third flow guide area 217, the electrolyte and the gas can be discharged only through the flow guide net 321, the flow of the electrolyte can be greatly attenuated, the discharge speed of the gas can be influenced, but the gas can be discharged through the flow guide net 321 at a low speed, so that potential safety hazards can not be caused; and emergency treatment of the emergency situation is realized.

As an improvement of the above technical solution, the driving mechanism 5 includes an amplitude detecting part 51, a rotating motor 52 and a transmission rod 53, the amplitude detecting part 51 and the rotating motor 52 are both installed on the surface of the air guide box 1, the amplitude detecting part 51 is electrically connected to the rotating motor 52, the rotating motor 52 is connected to the movable baffle plate 32 through the transmission rod 53, and the amplitude detecting part 51 is used for detecting the vibration amplitude of the electrolytic cell 4; the rotating motor 52 is used for driving the movable barrier plate 32 to rotate, the amplitude detection component 51 can detect the vibration state suffered by the lead storage battery, and the amplitude detection component 51 is composed of an YT-JB3 type vibration detection sensor and a PLC programming module by way of example; if the vibration is large, more electrolyte flows out by shaking, and the flowing clearance should be reduced, so that the outflow of the electrolyte is reduced, and the air filter disc is prevented from being soaked by a large amount of electrolyte; when the vibration amplitude is small, a reasonable flow gap can be kept, so that the gas can be quickly discharged; when the vibration amplitude is larger, the amount of the electrolyte which is shaken out is larger, the speed is higher, and the traditional single blocking and buffering structure cannot block all the electrolyte, so that part of the electrolyte wets the air filter.

As a modification of the above technical solution, the second air guide channel 22 includes an air exhaust hole 221, a third partition 222, a fourth air guide area 223 and an air filter main body 224, the third partition 222 is disposed inside the air guide box 1, the fourth air guide area 223 with one open end is formed between the third partition 222 and the second partition 214, the fourth air guide area 223 is communicated with the third air guide area 217, the fourth air guide area 223 is used for guiding out the gas delivered from the third air guide area 217, and the delivered liquid flows back in this area and cannot be discharged;

the fourth flow guiding area 223 is a right-angle bending structure, and the right-angle bending structure is used for prolonging a flow path and reducing the flow speed; the innermost end of the fourth flow guide area 223 is provided with an exhaust hole 221, the exhaust hole 221 is arranged at the highest point of the fourth flow guide area 223, and the exhaust hole 221 is arranged at the highest point of the whole exhaust area 2, so that the electrolyte can hardly reach the exhaust hole 221, and the air filter is effectively ensured to be in a dry state;

the height of the fourth flow guiding area 223 is greater than that of the third flow guiding area 217, and the filter body 224 is embedded in the exhaust hole 221.

As shown in fig. 1, fig. 1 shows a schematic view of an exhaust gas recirculation structure of the present embodiment;

the air guide box 1 is of a sandwich structure, two sets of air guide areas 2 are arranged in the air guide box 1, three first air guide channels 21 and one second air guide channel 22 are arranged in each set of air guide area 2, the outlet ends of the three air guide channels 21 are all discharged to the position of one second air guide channel 22, the innermost end of the inside of the second air guide channel 22 is provided with an exhaust hole 221, and the first air guide channel 21 is provided with a main guide flow hole 211 and an auxiliary guide flow hole 212.

As shown in FIG. 2, FIG. 2 illustrates a schematic view of a first gas guide channel structure of the present invention;

the first flow guide area 215, the second flow guide area 216 and the third flow guide area 217 form a first air guide channel 21, a main flow guide hole 211 and an auxiliary flow guide hole 212 are arranged in the first flow guide area 215, and a partition plate is arranged in the middle of the first flow guide area 215 to form a 180-degree turning path; then the flow enters a second flow guide area 216, a partition plate is arranged in the middle of the second flow guide area 216, and the flow channel is gradually narrowed;

the third flow guiding area 217 comprises a transverse area and a longitudinal area, wherein fixed blocking plates 31 are transversely distributed in the transverse area at intervals, gas flows from left to right, the fixed blocking plates 31 incline towards the left, the shape and the structure of the movable blocking plate 32 are the same as those of the fixed blocking plates 31, the sectional area of the movable blocking plate 32 is the same as that of the second flow guiding area 216 at the position of the movable blocking plate 32, and the inclination angles of the blocking plates are 45 degrees; in the initial state, the movable barrier plate 32 is also inclined towards the left side, and when the fixed barrier plate 31 and the movable barrier plate 32 are in the inclined state, a certain gap is formed between the fixed barrier plate and the inner wall of the third flow guiding area 216; the longitudinal area is provided with a plurality of bulges on the inner wall for buffering and decelerating.

FIG. 3 is a schematic view of a lead-acid battery of the present invention with a vent gas recirculation structure, as shown in FIG. 3;

the air guide box 1 is arranged on the top of the electrolytic bath 4, and the amplitude detection part 51 and the rotating motor 52 are both arranged on the shell of the lead storage battery.

As shown in fig. 4, fig. 4 shows an enlarged schematic structure at a of the present invention;

two reflux deflectors 2121 are arranged inside the auxiliary flow guiding hole 212, the two reflux deflectors 2121 are distributed up and down, the upper part of the reflux deflectors is inclined towards the left side, the lower part of the reflux deflectors is inclined towards the right side, and gaps are reserved between the two reflux deflectors 2121 and the inner wall of the auxiliary flow guiding hole 212;

as shown in fig. 5, fig. 5 is a schematic view showing the structure of the movable blocking plate of the present invention;

the end of the movable blocking plate 32 is a mesh structure, i.e. a flow guiding net 321.

When the invention is implemented, gas can be generated in the lead storage battery in the charging and discharging processes, the gas can float upwards in the electrolyte and is discharged through each main flow guiding hole 211 and the auxiliary flow guiding holes 212, when the gas is discharged, part of the electrolyte can be carried out, and the electrolyte entering the main flow guiding holes 211 can flow out of the main flow guiding holes 211 along with the gas and enter the first flow guiding area 215; the electrolyte entering the auxiliary flow guide holes 212 is blocked by the downward inclined reflux guide plate 2121, most of the electrolyte flows back into the electrolytic cell, and the gas is normally discharged through the auxiliary flow guide holes 212;

discharged gas and electrolyte can sequentially pass through the first flow guide area 215, the second flow guide area 216, the third flow guide area 217 and the fourth flow guide area 223, in the flowing process, the electrolyte can be blocked by the plurality of bent channels and the blocking buffer structures, the flowing speed of the electrolyte is reduced, when the electrolyte passes through the blocking mechanism 3, the electrolyte can be blocked by the fixed blocking plate 31, the electrolyte and the gas can flow out through a gap at the end part of the fixed blocking plate 31, and when the electrolyte passes through the movable blocking plate 32, the electrolyte and the gas can be discharged through a gap at the end part of the movable blocking plate 32 and the flow guide net 321; in the flowing process, the electrolyte flows upwards along the inclined plane, and further the electrolyte is subjected to resistance, so that the electrolyte with lower initial speed in the flowing process flows back to the first flow guide area 215 along the discharging path again, and then is discharged back to the electrolytic cell through the main flow guide hole 211 and the auxiliary flow guide hole 212; finally, the electrolyte flows back into the electrolytic cell, and the gas is exhausted through the exhaust hole 221, so that the gas filter disc cannot be wetted;

during daily work, besides that gas can flush out electrolyte, when the lead storage battery is vibrated, the lead storage battery can shake back and forth, part of electrolyte can be discharged during shaking, and the discharged electrolyte also flows back according to the process;

when the vibration amplitude is large, the vibration sensor in the vibration amplitude detection part 51 detects that the vibration is large, the detected information is processed by the PLC module and then the rotating motor 52 is started, the rotating motor 52 drives the movable blocking plate 32 to rotate towards one side along the gas circulation direction through the transmission rod 53, after the rotation is carried out for 45 degrees, the movable blocking plate 32 can block the flow guide area, so that the gap between the movable blocking plate 32 and the flow guide area disappears, the electrolyte and the gas can only be discharged through the flow guide net 321, the resistance of the electrolyte is greatly increased, the flow quantity is greatly reduced, and the air filter is effectively prevented from being wetted.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.