New energy smoke control purification equipment

Abstract

The utility model relates to battery smoke control technical field, and disclose a new energy smoke control purification equipment, including battery package body, the battery package body inner wall is fixed with a plurality of baffle, and the battery package body forms a plurality of smoke control storehouses through the baffle. The utility model discloses through a plurality of side way board and middle way board, so that when the battery package body of new energy special vehicle appears the high temperature flue gas of electric core thermal runaway, the high temperature high -speed flue gas is first divided by the flue hole of baffle and enters the smoke control storehouse, after the flue gas enters, because the segmentation of side way board, the porosity of both sides of side way board divides into multidirectional wind and moves downward, the wind of both sides collides in the middle part formed by middle way board, and the wind speed is weakened and moves downward again, through the setting of multistage side way board and middle way board, make the high -speed flue gas constantly mutually against the blow deceleration, thereby better weakening the wind speed, thereby make the adsorbing material that side way board and middle way board surface cover can fully adsorb flue gas, improve the adsorption effect, prevent personnel injury and environmental pollution.

Description

Technical Field

[0001] This utility model belongs to the field of battery smoke control technology, and specifically relates to a new energy smoke control and purification device. Background Technology

[0002] New energy special vehicles refer to new energy vehicles that use new energy sources, such as electricity, as their power source, are equipped with special equipment or devices, have specific functions, and are used to undertake special transportation tasks or special operations.

[0003] Currently, Chinese utility model patent CN118825469A discloses a battery pack smoke control device, a vehicle, and a parameter design method. The battery pack smoke control device includes: a battery pack body; an explosion-proof valve installed on the battery pack body; and a smoke adsorption device installed within the air duct of the battery pack body. This solves the problem of how to improve the smoke control effect of a battery pack without increasing its size.

[0004] In the above-disclosed structure, the adsorbent material used is a sheet-like structure. This method also causes the high-temperature and high-speed flue gas to come into direct contact with the sheet-like adsorbent material. As a result, the sheet-like adsorbent material at the front loses its adsorption effect quickly under the impact of high temperature and high pressure, or the flue gas passes through quickly but the adsorption is incomplete, resulting in poor adsorption effect. This means that a lot of flue gas remains in the gas leaving the pressure relief valve, causing harm to people's health and environmental pollution. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a new energy smoke control and purification device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a new energy smoke control and purification device, comprising a battery pack, wherein multiple partitions are fixed to the inner wall of the battery pack, and the battery pack forms multiple smoke control chambers through the partitions, wherein a sealing cover is fixed to the top of the smoke control chamber, and multiple smoke duct holes are linearly arrayed on the top of the partitions; multiple side channels are fixed to the inner wall of the smoke control chamber, multiple middle channels are fixed to the inner wall of the smoke control chamber, and a side channel is provided below the sealing cover; multiple pressure relief valves are provided on one side of the battery pack, and the pressure relief valves are in communication with the inner wall of the smoke control chamber.

[0007] Preferably, a thick-walled member is fixed to the inner wall of the smoke control chamber between the sealing cover and the side panel, and the thick-walled member is semi-circular; a smoke guide is fixed to the inner wall of the smoke control chamber below the sealing cover, the top of the smoke guide is fixed to the bottom of the sealing cover, one side of the thick-walled member is fixed to the inner wall of the smoke control chamber, the smoke guide is triangular, and the inclined surface of the smoke guide faces the side panel.

[0008] Preferably, the sealing cover and the side duct plate have multiple smoke-blocking strips fixed in a linear array on their opposing surfaces, and the smoke-blocking strips are semi-circular; the side duct plate and the middle duct plate have multiple inclined plates fixed in a linear array on their surfaces, and the inclined plates face the smoke inlet direction at each position.

[0009] Preferably, a semi-circular component is fixed to the top surface of the inclined plate, the top of the semi-circular component is fixed to the bottom of the side plate, and the bottom of the semi-circular component is fixed to the top of the center plate.

[0010] Preferably, the thick-walled component has multiple smoke distribution grooves arranged in a linear array in the middle, and the end of the smoke distribution groove away from the middle of the thick-walled component is set as an inclined surface.

[0011] Preferably, smoke guide grooves are provided at both ends of the thick-walled component, and the length of the smoke guide grooves is greater than one-half of the length of the thick-walled component.

[0012] Preferably, a triangular piece is fixed at the center of the bottom of the side panel, one end of the triangular piece is fixed to the inner wall of the smoke control chamber, and the triangular piece is hollow.

[0013] Preferably, a plurality of adsorption elements are provided below the lowest side panel on the inner wall of the smoke control chamber, and the adsorption elements are cylindrical.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. This utility model, through multiple side and central baffles, enables the high-temperature, high-speed flue gas generated when the battery pack of a new energy vehicle experiences thermal runaway and generates high-temperature flue gas. The flue gas is first divided by the flue holes of the baffle and enters the smoke control chamber. After entering, the flue gas is divided into multi-directional winds by the gaps on both sides of the side baffles and moves downward. The winds on both sides collide in the middle formed by the central baffle, reducing the wind speed and moving downward again. Through the setting of multiple side and central baffles, the high-speed flue gas is continuously decelerated by mutual blowing, thereby effectively reducing the wind speed. This allows the adsorption material covering the surface of the side and central baffles to fully adsorb the flue gas, improve the adsorption effect, and prevent personal injury and environmental pollution.

[0016] 2. This utility model protects the inner wall of the smoke control chamber, which is the first point of contact between high-temperature flue gas and the smoke guide component, by using thick-walled components and smoke guide components. This prevents the inner wall of the smoke control chamber from melting due to high temperature in a short period of time, which would lead to flue gas leakage and injury to personnel. The thick-walled components and smoke guide components prevent high-temperature flue gas from directly contacting the inner wall of the smoke control chamber. At the same time, the smoke guide component guides the flue gas to the space between the lower side plate and the middle plate, thereby effectively preventing the impact of high-temperature flue gas on the inner wall of the smoke control chamber.

[0017] 3. This utility model increases the friction between the flue gas and the side and middle duct plates by using multiple inclined plates facing the flue gas inlet direction, further slowing down the movement speed of the flue gas, so that the flue gas is more fully adsorbed. At the same time, slowing down the flue gas speed allows the flue gas more time to dissipate heat, preventing the adsorption components or pressure relief valve from failing rapidly due to high temperature flue gas, and improving the service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the partition of this utility model;

[0020] Figure 3 This is a cross-sectional view of the sealing cap of this utility model;

[0021] Figure 4 This is a cross-sectional view of the smoke guide component of this utility model;

[0022] Figure 5 This is a cross-sectional view of the triangular component of this utility model;

[0023] Figure 6 This is a cross-sectional view of the side deck of this utility model.

[0024] Figure label:

[0025] 1. Battery pack body; 101. Separator; 102. Smoke control compartment;

[0026] 2. Sealing cover; 201. Flue hole; 202. Side duct plate; 203. Middle duct plate; 204. Pressure relief valve;

[0027] 3. Thick-walled components; 301. Smoke guide components;

[0028] 4. Smoke barrier strip; 401. Angled plate;

[0029] 5. Smoke trough;

[0030] 6. Smoke guide trough;

[0031] 7. Triangular components;

[0032] 8. Semi-circular parts;

[0033] 9. Adsorption components. Detailed Implementation

[0034] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0035] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0036] Example 1:

[0037] refer to Figures 1-6 A new energy smoke control and purification device includes a battery pack 1. Multiple partitions 101 are fixed to the inner wall of the battery pack 1. Multiple smoke control chambers 102 are formed by the partitions 101. A sealing cover 2 is fixed to the top of the smoke control chamber 102. Multiple smoke duct holes 201 are linearly arrayed on the top of the partitions 101. Multiple side channels 202 and multiple middle channels 203 are fixed to the inner wall of the smoke control chamber 102. The side channels 202 are provided below the sealing cover 2. Multiple pressure relief valves 204 are provided on one side of the battery pack 1. The pressure relief valves 204 are in communication with the inner wall of the smoke control chamber 102.

[0038] Specifically, through multiple side panels 202 and central panels 203, when the battery pack 1 of the new energy special vehicle experiences thermal runaway and generates high-temperature smoke, the high-temperature, high-speed smoke is first divided by the smoke duct holes 201 of the partition 101 and enters the smoke control chamber 102. After the smoke enters, due to the division by the side panels 202, it is divided into multi-directional winds by the gaps on both sides of the side panels 202 and moves downward. The winds on both sides collide in the middle formed by the central panels 203, reducing the wind speed and moving downward again. Through the setting of multiple side panels 202 and central panels 203, the high-speed smoke continuously blows against each other to slow down, thereby effectively reducing the wind speed. This allows the adsorption material covering the surface of the side panels 202 and central panels 203 to fully adsorb the smoke, improve the adsorption effect, and prevent personal injury and environmental pollution.

[0039] A thick-walled component 3 is fixed to the inner wall of the smoke control chamber 102 between the sealing cover 2 and the side panel 202. The thick-walled component 3 is semi-circular. A smoke guide 301 is fixed to the inner wall of the smoke control chamber 102 below the sealing cover 2. The top of the smoke guide 301 is fixed to the bottom of the sealing cover 2, and one side of the thick-walled component 3 is fixed to the inner wall of the smoke control chamber 102. The smoke guide 301 is triangular, and the inclined surface of the smoke guide 301 faces the side panel 202.

[0040] Specifically, the thick-walled component 3 and the smoke guide component 301 protect the inner wall of the smoke control chamber 102, which is the first point of contact between the high-temperature flue gas and the smoke control chamber 102. This prevents the inner wall of the smoke control chamber 102 from melting due to high temperature in a short period of time, which would lead to flue gas leakage and injury to personnel. The thick-walled component 3 and the smoke guide component 301 prevent the high-temperature flue gas from directly contacting the inner wall of the smoke control chamber 102. At the same time, the smoke guide component 301 guides the flue gas to the area between the lower side plate 202 and the middle plate 203, thereby effectively preventing the high-temperature flue gas from affecting the inner wall of the smoke control chamber 102.

[0041] Multiple smoke-blocking strips 4 are fixed in a linear array on the opposing surfaces of the sealing cover 2 and the side duct plate 202. The smoke-blocking strips 4 are semi-circular. Multiple inclined plates 401 are fixed in a linear array on the surfaces of the side duct plate 202 and the middle duct plate 203. The inclined plates 401 face the smoke inlet direction at each position.

[0042] Specifically, the smoke-blocking strip 4 reduces the velocity of the flue gas through friction with it. The semi-circular shape of the smoke-blocking strip 4 increases the contact and fixing area between it and the sealing cover 2 and side duct plate 202, preventing bending when the strip faces the high-speed flue gas. This reduces the flue gas velocity and extends the service life of the smoke-blocking strip 4. Multiple inclined plates 401 facing the flue gas inlet direction increase the friction between the flue gas and the side duct plate 202 and the central duct plate 203, further slowing down the flue gas's movement. This allows for more thorough adsorption of the flue gas, while also allowing more time for heat dissipation, preventing high-temperature flue gas from causing rapid failure of the adsorption element 9 or the pressure relief valve 204, thus extending the equipment's service life.

[0043] A semi-circular piece 8 is fixed to the top surface of the inclined plate 401. The top of the semi-circular piece 8 is fixed to the bottom of the side plate 202; the bottom of the semi-circular piece 8 is fixed to the top of the middle plate 203.

[0044] Specifically, under the action of high-speed flue gas, the inclined plate 401 slows down the flue gas by tilting. Under the rapid impact of the flue gas, the inclined plate 401 is prone to rotating counterclockwise and breaking due to tilting. The semi-circular part 8 thus better increases the fixing effect of the inclined plate 401 and improves its service life.

[0045] Multiple smoke distribution grooves 5 are linearly arrayed in the middle of the thick-walled component 3. The end of the smoke distribution groove 5 away from the middle of the thick-walled component 3 is set as an inclined surface. Smoke guide grooves 6 are opened at both ends of the thick-walled component 3. The length of the smoke guide groove 6 is greater than half of the thick-walled component 3.

[0046] Specifically, the flue gas is divided by the flue gas trough 5, which allows the flue gas to be quickly layered and prevents the high temperature caused by the flue gas always acting in one place. At the same time, the inclined surfaces at both ends of the flue gas trough 5 and the flue gas guide trough 6 allow the flue gas to move quickly to both sides of the side plate 202, thereby guiding the flue gas and preventing the flue gas from staying between the sealing cover 2 and the side plate 202 for a long time, which would cause high temperature or high air pressure, thus improving the flow and adsorption effect of the flue gas.

[0047] A triangular piece 7 is fixed at the center of the bottom of the side panel 202. One end of the triangular piece 7 is fixed to the inner wall of the smoke control chamber 102. The triangular piece 7 is hollow.

[0048] Specifically, the triangular piece 7 enhances the fixing effect of the side plate 202, ensuring the stability of the side plate 202. When the smoke from both sides collides at the triangular piece 7, the triangular piece 7 guides the smoke to move downward, reducing the residence time of the smoke and preventing excessive pressure caused by the smoke lingering.

[0049] Multiple adsorption elements 9 are provided below the lowest side channel plate 202 on the inner wall of the smoke control chamber 102. The adsorption elements 9 are cylindrical.

[0050] Specifically, the flue gas enters the divided smoke control chamber 102 below the side duct plate 202 from both ends of the side duct plate 202. After being decelerated through multiple stages, the flue gas enters the adsorption element 9 and is further fully adsorbed. Finally, the gas that has been controlled and purified leaves the equipment through the pressure relief valve 204, preventing toxic and harmful gases from affecting the staff or polluting the environment.

[0051] Example 2:

[0052] refer to Figures 1-6 Based on the structure disclosed in this utility model, the staff simulated the thermal runaway of a single LFP cell in a thermal runaway test of a power battery pack for an electric heavy truck of CATL.

[0053] When the cell temperature rises to 180℃, the internal electrolyte vaporizes, generating high-temperature flue gas at 1200℃. This gas is injected into the smoke control chamber 102 through 12 φ8mm flue holes 201 in the partition 101 at a pressure of 0.8MPa. The flue gas first impacts the 3mm thick 304 stainless steel thick-walled component 3 (semi-circular radius 50mm), whose surface temperature rises to 650℃ within 0.1 seconds. 90% of the high-temperature flue gas is divided by the 8-part smoke channel 5 in the middle of the thick-walled component 3. The 25° slope at the end of the smoke channel 5 guides the airflow to both sides. The remaining flue gas is diverted through the smoke guide channels 6 (40mm in length) at both ends of the thick-walled component 3.

[0054] After being diverted, the flue gas is forcibly turned by the triangular smoke guide 301 (base angle 60°) at the bottom of the sealing cover 2, and rushes into the 25mm gap formed by the first-stage side channel plate 202 and the middle channel plate 203 at a speed of 15m / s. At this time: the semi-circular smoke blocking strip 4 at the bottom of the sealing cover 2 reduces the smoke velocity to 12m / s; the 20 sets of inclined plates 401 (inclination angle 45°) on the surface of the side channel plate 202 generate turbulence, and the smoke velocity is further reduced to 8m / s; the flue gas on both sides collides with each other at the center of the middle channel plate 203, and the impact point decelerates accordingly.

[0055] After undergoing three stages of deceleration, the flue gas continues to descend. In the second-stage channel: 1) the inclined plate 401 of the central channel 203 guides the airflow to collide with the triangular piece 7 (1.5mm thick hollow structure) at the bottom of the side channel 202; 2) the inclined plate 401, reinforced by the semi-circular piece 8 (10mm diameter), compresses the flue gas velocity to 3m / s. Finally, the 800℃ flue gas reaches the bottom of the smoke control chamber 102, penetrates the three-layer cylindrical activated alumina adsorbent 9 (φ20×50mm, specific surface area 300㎡ / g), and after the harmful gases are adsorbed, the 450℃ clean gas is discharged from the pressure relief valve 204 (operating pressure 0.75MPa). Actual measurements show that this structure extends the flue gas residence time from 20ms to 120ms and increases the HF adsorption rate from 68% to 96%.

[0056] The working principle of this utility model is as follows: When the battery cell in the battery pack 1 generates high-temperature smoke due to thermal runaway, the smoke first enters the smoke control chamber 102 after being divided by the smoke duct hole 201 at the top of the partition 101. The semi-circular smoke blocking strip 4 on the surface of the sealing cover 2 and the side channel plate 202 increases the frictional resistance. The thick-walled part 3 prevents the high-temperature smoke from directly contacting the inner wall of the smoke control chamber 102. At the same time, the smoke is divided into multiple streams by the smoke dividing groove 5 of the thick-walled part 3 and guided to the edge of the side channel plate 202 through the smoke guiding groove 6. The impacting smoke is guided by the triangular smoke guiding part 301 at the bottom of the sealing cover 2 and turned to the gap on both sides of the side channel plate 202.

[0057] After turning, the flue gas flows in the narrow channel formed by the side duct 202 and the middle duct 203, and decelerates by colliding at the center of the middle duct 203. During this process, the inclined plates 401 set at a specific angle on the surface of the side duct 202 and the middle duct 203 are reinforced by the semi-circular parts 8 to further generate turbulent deceleration; and the hollow triangular parts 7 guide the colliding airflow downward.

[0058] After undergoing multiple stages of deceleration and cooling, the flue gas finally reaches the bottom of the smoke control chamber 102, where it is fully adsorbed and purified by the cylindrical adsorption element 9. The qualified gas is then safely discharged through the pressure relief valve 204.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A new energy smoke control purification equipment, comprising a battery package body (1), a plurality of partitions (101) are fixed on the inner wall of the battery package body (1), and the battery package body (1) forms a plurality of smoke control warehouses (102) through the partitions (101), characterized in that: The top of the smoke control chamber (102) is fixed with a sealing cover (2), and the top of the partition (101) is provided with a plurality of smoke duct holes (201) in a linear array; Multiple side panels (202) are fixed to the inner wall of the smoke control chamber (102), and multiple middle panels (203) are fixed to the inner wall of the smoke control chamber (102). A side panel (202) is provided below the sealing cover (2). Multiple pressure relief valves (204) are provided on one side of the battery pack (1). The pressure relief valves (204) are in communication with the inner wall of the smoke control chamber (102).

2. The new energy smoke control and purification equipment according to claim 1, characterized in that: A thick-walled member (3) is fixed to the inner wall of the smoke control chamber (102) between the sealing cover (2) and the side channel plate (202), and the thick-walled member (3) is set in a semi-circular shape; A smoke guide (301) is fixed to the inner wall of the smoke control chamber (102) below the sealing cover (2). The top of the smoke guide (301) is fixed to the bottom of the sealing cover (2), and one side of the thick-walled member (3) is fixed to the inner wall of the smoke control chamber (102). The smoke guide (301) is triangular in shape, and the inclined surface of the smoke guide (301) faces the side plate (202).

3. The new energy smoke control and purification device according to claim 1, characterized in that: Multiple smoke-blocking strips (4) are fixed to the opposing surfaces of the sealing cover (2) and the side channel plate (202) in a linear array, and the smoke-blocking strips (4) are set in a semi-circular shape; The side duct plate (202) and the middle duct plate (203) are both linearly arrayed with multiple inclined plates (401), which are oriented toward the smoke inlet direction at each position.

4. The new energy smoke control and purification device according to claim 3, characterized in that: A semi-circular piece (8) is fixed to the top surface of the inclined plate (401), and the top of the semi-circular piece (8) is fixed to the bottom of the side plate (202); The bottom of the semi-circular part (8) is fixed to the top of the middle plate (203).

5. A new energy smoke control and purification device according to claim 2, characterized in that: The thick-walled component (3) has multiple smoke distribution grooves (5) arranged in a linear array in the middle, and the end of the smoke distribution groove (5) away from the middle of the thick-walled component (3) is set as an inclined surface.

6. The new energy smoke control and purification equipment according to claim 2, characterized in that: Both ends of the thick-walled component (3) are provided with smoke guide grooves (6), and the length of the smoke guide grooves (6) is greater than half of the length of the thick-walled component (3).

7. The new energy smoke control and purification equipment according to claim 1, characterized in that: A triangular piece (7) is fixed at the center of the bottom of the side panel (202). One end of the triangular piece (7) is fixed to the inner wall of the smoke control chamber (102). The triangular piece (7) is hollow.

8. The new energy smoke control and purification equipment according to claim 1, characterized in that: Multiple adsorption elements (9) are provided below the lowest side channel plate (202) on the inner wall of the smoke control chamber (102), and the adsorption elements (9) are cylindrical.

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