Marine power battery ventilation system and ship

Abstract

The present invention relates to the field of ship technology, and discloses a ship power battery ventilation system and a ship. The ship power battery ventilation system includes: an air conditioner and a blower, wherein the air conditioner is arranged in the battery compartment, the blower is used to supply air to the air conditioner, and the air conditioner is used to provide cold air to the battery compartment; an exhaust fan and an exhaust pipe, one end of the exhaust pipe is respectively connected to a plurality of the battery packs, and the other end of the exhaust pipe is connected to the exhaust fan, and the exhaust fan is configured to extract the gas in the battery pack and discharge it outside the ship. The beneficial effect is that it can increase the safety factor of the battery compartment without increasing the production cost of the ship.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to a ship power battery ventilation system and a ship. Background Art

[0002] In order to meet the power demand on board a ship, a plurality of lithium batteries are usually installed on board the ship. The plurality of lithium batteries are located in a battery compartment specially used for placing lithium batteries, so as to facilitate unified management of the plurality of lithium batteries.

[0003] Since lithium batteries may experience thermal runaway during use, they may generate high-temperature flammable and explosive gases when thermal runaway occurs, posing a safety threat to the battery compartment and even the entire ship. Therefore, it is necessary to discharge the high-temperature flammable and explosive gases generated by lithium batteries under thermal runaway to outside the battery compartment.

[0004] The battery compartment is provided with an air supply port for delivering cool air into the battery compartment and an air exhaust port for extracting gas from the battery compartment, thereby cooling the battery compartment and exhausting the gas from the battery compartment.

[0005] However, since gas can easily diffuse in the battery compartment, that is, the gas diffused into the battery compartment is then extracted from the exhaust port; but the high-temperature flammable and explosive gas diffused into the battery compartment can easily cause the battery compartment to explode before being extracted from the exhaust port, causing serious safety accidents and resulting in a low safety factor for the battery compartment.

[0006] In order to solve the above problems, the entire battery compartment is currently defined as a hazardous area, that is, all electrical equipment involved in the battery compartment defined as a hazardous area needs to be set as explosion-proof equipment; however, the cost of explosion-proof equipment is high, resulting in higher production costs for the entire ship.

[0007] Therefore, there is an urgent need for a ship power battery ventilation system and a ship that can solve the above problems. Summary of the Invention

[0008] An object of the present invention is to provide a ship power battery ventilation system, which can increase the safety factor of the battery compartment without increasing the production cost of the ship.

[0009] To achieve this object, the present invention adopts the following technical solutions:

[0010] A ship power battery ventilation system is used to ventilate and dissipate heat for a ship's battery compartment and a plurality of battery packs arranged in the battery compartment, comprising:

[0011] An air conditioner and a blower, wherein the air conditioner is arranged in the battery compartment, the blower is used to supply air to the air conditioner, and the air conditioner is used to provide cold air to the battery compartment;

[0012] An exhaust fan and an exhaust pipe, one end of the exhaust pipe is connected to the plurality of battery packs respectively, and the other end of the exhaust pipe is connected to the exhaust fan, and the exhaust fan is configured to extract the gas in the battery pack and discharge it outside the ship.

[0013] Furthermore, the air inlet of the blower is located outside the ship, and the air outlet of the blower is connected to the air inlet of the air conditioner.

[0014] Furthermore, the battery compartment is provided with an exhaust port, and the ship power battery ventilation system further includes:

[0015] An exhaust pipe, one end of which is connected to the exhaust port, and the other end of which is located outside the ship.

[0016] Furthermore, no branch pipelines are provided at the connection between the air outlet of the blower and the air inlet of the air conditioner, nor on the exhaust pipe.

[0017] Furthermore, the ship power battery ventilation system also includes:

[0018] An air supply pipe, wherein the air inlet of the air supply pipe is located outside the ship, and the air outlet of the air supply pipe is respectively connected to the plurality of battery packs.

[0019] Furthermore, the branch pipeline is not provided on the air supply pipe and the air exhaust pipe.

[0020] Furthermore, the air supply pipe and the air exhaust pipe are both sealed pipes.

[0021] Furthermore, a plurality of delivery pipes are evenly arranged in the battery compartment, and the delivery pipes are used to deliver the cold air of the air conditioner into the battery compartment.

[0022] Furthermore, the exhaust fan is a sparkless centrifugal exhaust fan.

[0023] Another object of the present invention is to provide a ship with high safety performance and low production cost.

[0024] To achieve this object, the present invention adopts the following technical solutions:

[0025] A ship comprises a battery compartment and the ship power battery ventilation system as described above, wherein the ship power battery ventilation system is connected to the battery compartment.

[0026] The beneficial effects of the present invention are:

[0027] By making the blower supply air to the air conditioner in the battery compartment, the air conditioner can provide cold air with a certain pressure to the battery compartment due to the air supply effect of the blower; at the same time, one end of the exhaust pipe is connected to multiple battery packs located in the battery compartment, and the other end of the exhaust pipe is connected to the exhaust fan, so that the exhaust fan can directly extract the high-temperature flammable and explosive gases generated by the battery pack when thermal runaway occurs through the exhaust pipe and discharge them to the outside of the ship, so as to avoid the generated high-temperature flammable and explosive gases posing a safety threat to the battery pack itself; due to the extraction action of the exhaust fan and the air supply action of the blower, the pressure outside the exhaust pipe can be made greater than the pressure inside the exhaust pipe, that is, the cold air with a certain pressure in the battery compartment can be It is able to limit the high-temperature flammable and explosive gases in the exhaust pipe from overflowing into the battery compartment through the connection between the blower pipe and the battery pack, so that the high-temperature flammable and explosive gases in the exhaust pipe can only be located in the exhaust pipe, and are extracted through the exhaust fan and discharged to the outside of the ship; in this way, it can be ensured that the high-temperature flammable and explosive gases generated by thermal runaway of the battery pack can only be discharged from the exhaust pipe and will not leak into the battery compartment, so there will be no safety accidents of battery compartment explosion, so that the safety factor of the battery compartment is higher; therefore, there is no need to define the entire battery compartment as a hazardous area, so as to reduce the number of electrical equipment that needs to be set as explosion-proof equipment in the battery compartment, so as to save costs, and thus make the production cost of the entire ship lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the ship power battery ventilation system provided by the present invention. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the structure of the ship power battery ventilation system provided by the present invention. Figure 2 .

[0030] Reference numerals:

[0031] 1-battery compartment; 2-air conditioner; 3-supply fan; 4-exhaust fan; 5-exhaust duct; 6-delivery duct; 7-supply duct; 8-battery pack; 9-output duct. DETAILED DESCRIPTION

[0032] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific implementation methods.

[0033] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely for ease of description and simplified operation, and are not intended to indicate or imply that the structures or elements referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0036] At present, the entire battery compartment is defined as a hazardous area, that is, all electrical equipment involved in the battery compartment defined as a hazardous area needs to be set as explosion-proof equipment; however, due to the high cost of explosion-proof equipment, the production cost of the entire ship is high.

[0037] To this end, this embodiment proposes a ship power battery ventilation system and a ship including the ship power battery ventilation system, such as Figure 1 and Figure 2 As shown, the vessel also includes a battery compartment 1, within which are disposed a plurality of battery packs 8 for powering the vessel. The vessel's power battery ventilation system is connected to the battery compartment 1 to provide ventilation and heat dissipation for the battery compartment 1 and the battery packs 8, thereby ensuring the safety of the battery packs 8 and the battery compartment 1. The vessel in this embodiment may specifically be a cruise ship. In other embodiments, the vessel may be of other types. The type of vessel is not limited herein.

[0038] Specifically, if Figure 1 and Figure 2 As shown, the ship's power battery ventilation system includes an air conditioner 2, a blower 3, an exhaust fan 4, and an exhaust duct 5. The air conditioner 2 is installed in the battery compartment 1. The blower 3 is used to provide fresh air to the air conditioner 2, and the air conditioner 2 is used to provide cold air to the battery compartment 1 to cool the interior of the battery compartment 1 and ensure that the temperature of the battery pack 8 installed in the battery compartment 1 is relatively suitable. The fresh air provided by the air conditioner 2 to the battery compartment 1 has a certain pressure. One end of the exhaust duct 5 is connected to multiple battery packs 8, and the other end of the exhaust duct 5 is connected to the exhaust fan 4. The exhaust fan 4 is located outside the battery compartment 1 and is used to extract the gas inside the battery pack 8 and discharge it to the outside of the ship. The exhaust fan 4 transports the gas in the exhaust duct 5 to the top of the ship's chimney through the output pipe 9. The gas in the exhaust duct 5 extracted by the exhaust fan 4 is then discharged to the outside of the ship through the ship's chimney. The exhaust fan 4 in this embodiment is specifically a sparkless centrifugal exhaust fan. Sparkless centrifugal exhaust fans have the characteristics of no sparks and fast exhaust speed.

[0039] Compared with the prior art, the ship power battery ventilation system in this embodiment changes the relationship between the pressure inside and outside the exhaust pipe 5; through the extraction action of the exhaust fan 4 and the air supply action of the blower 3, the pressure outside the exhaust pipe 5 can be made greater than the pressure inside the exhaust pipe 5, that is, the cold air with a certain pressure in the battery compartment 1 can limit the high-temperature flammable and explosive gas in the exhaust pipe 5 from overflowing into the battery compartment 1 through the connection between the blowing pipe and the battery pack 8, so that the high-temperature flammable and explosive gas in the exhaust pipe 5 can only be located in the exhaust pipe 5 and extracted to the outside of the battery compartment 1 through the exhaust fan 4; in this way, it can be ensured that the high-temperature flammable and explosive gas generated by thermal runaway of the battery pack 8 can only be discharged from the exhaust pipe 5 and will not leak into the battery compartment 1, so there will be no safety accident of battery compartment 1 explosion, so that the safety factor of the battery compartment 1 is higher; therefore, there is no need to define the entire battery compartment 1 as a hazardous area, so as to reduce the number of electrical equipment that needs to be set as explosion-proof equipment in the battery compartment 1, thereby saving costs and thus making the production cost of the entire ship lower. Among them, the number of exhaust pipes 5 can be set to multiple, as long as it is ensured that each battery pack 8 in the battery compartment 1 can be connected to the exhaust fan 4 through the exhaust pipe 5. The specific number of exhaust pipes 5 is not limited here.

[0040] Among them, Figure 1 As shown, a plurality of delivery pipes 6 are evenly arranged in the battery compartment 1. The delivery pipes 6 are used to evenly deliver the cold air of the air conditioner 2 to every corner of the battery compartment 1 to ensure that the ventilation and heat dissipation effect inside the entire battery compartment 1 is relatively uniform, avoiding the problem of overheating in some parts of the battery compartment 1 or overcooling in some parts.

[0041] Furthermore, the air inlet of the blower 3 is located on the outside of the ship, so as to directly introduce air from the outside of the ship into the air conditioner 2; and the air outlet of the blower 3 is directly connected to the air inlet of the air conditioner 2, so that the fresh air in the blower 3 is directly delivered to the air conditioner 2, avoiding the loss of pressure of the fresh air delivered to the air conditioner 2 due to the setting of a connecting pipeline between the blower 3 and the air conditioner 2, that is, it can ensure that fresh air with a certain pressure directly enters the air conditioner 2, so that the air conditioner 2 can provide cold air with a certain pressure to the battery compartment 1, thereby ensuring that the pressure outside the exhaust pipe 5 is greater than the pressure inside the exhaust pipe 5.

[0042] Specifically, no branch pipeline is set at the connection between the air outlet of the blower 3 and the air inlet of the air conditioner 2, that is, the air in the blower 3 can only enter the air conditioner 2, avoiding the pressure loss of the air entering the air conditioner 2 due to the air in the blower 3 being supplied to other equipment, thereby better ensuring that the pressure outside the exhaust pipe 5 is greater than the pressure inside the exhaust pipe 5.

[0043] Furthermore, an exhaust port is provided on the battery compartment 1, and the ship power battery ventilation system also includes an exhaust pipe, one end of the exhaust pipe is connected to the exhaust port, and the other end of the exhaust pipe is located outside the ship, so as to discharge the air in the battery compartment 1 to the outside of the ship.

[0044] It is worth noting that there is no need to set an exhaust device at the exhaust duct, so that the air in the battery compartment 1 can be discharged naturally through the exhaust duct. In this way, a large amount of air in the battery compartment 1 can be avoided from being discharged, which may cause the pressure in the battery compartment 1 to be lower than the pressure inside the exhaust duct 5; and there is only one exhaust duct. On the one hand, it can meet the exhaust demand for the air in the battery compartment 1, and on the other hand, it can avoid the pressure in the battery compartment 1 being lower than the pressure inside the exhaust duct 5 due to too many exhaust ducts being set; thereby, it can ensure that the pressure outside the exhaust duct 5 is greater than the pressure inside the exhaust duct 5.

[0045] Specifically, no branch pipe is set on the exhaust pipe; that is, the wind in the exhaust pipe is directly discharged outside the ship, avoiding the increase of the exhaust air volume or exhaust rate of the exhaust pipe due to other equipment being connected to the exhaust pipe, so as to ensure that the exhaust volume in the battery compartment 1 is less than the intake air volume, and thus better ensure that the pressure outside the exhaust pipe 5 is greater than the pressure inside the exhaust pipe 5.

[0046] It is worth noting that during the entire working process of the ship power battery ventilation system, the blower 3 needs to be kept in working state at all times so that the blower 3 can continuously supply air to the air conditioner 2, and then the air conditioner 2 can continuously provide cold air with a certain pressure to the battery compartment 1, to ensure that the pressure inside the battery compartment 1 is greater than the pressure inside the exhaust pipe 5, even if the pressure outside the exhaust pipe 5 is greater than the pressure inside the exhaust pipe 5.

[0047] Further, if Figure 2 As shown, the ship power battery ventilation system also includes an air supply pipe 7, the air inlet of the air supply pipe 7 is located on the outside of the ship, and the air outlet of the air supply pipe 7 is respectively and directly connected to multiple battery packs 8, so as to directly draw air from the outside of the ship to the battery pack 8 to ventilate and dissipate heat for the battery pack 8.

[0048] It is worth noting that there is no need to set up an air supply device at the air supply pipe 7, so that the air in the air supply pipe 7 can naturally enter the battery pack 8. In this way, it can avoid a large amount of air entering the battery pack 8 quickly and causing the pressure inside the exhaust pipe 5 to be greater than the pressure outside the exhaust pipe 5; and there is only one air supply pipe 7. On the one hand, it can meet the air intake demand of the battery pack 8, and on the other hand, it can avoid the pressure inside the exhaust pipe 5 being too high due to the number of air supply pipes being set, which in turn causes the pressure outside the exhaust pipe 5 to be lower than the pressure inside the exhaust pipe 5.

[0049] Furthermore, no branch pipelines are set on the air supply pipe 7 and the exhaust pipe 5; that is, the air in the air supply pipe 7 is directly supplied to the battery pack 8, so as to avoid the increase of the air volume or air supply rate of the air supply pipe 7 due to the connection of other equipment to the air supply pipe 7, so as to ensure that the pressure in the air supply pipe 7 is relatively low; and the air in the exhaust pipe 5 is directly discharged out of the ship, so as to avoid the reduction of the air volume or exhaust rate of the exhaust pipe 5 due to the connection of other equipment to the exhaust pipe 5, which leads to a higher pressure in the exhaust pipe 5, thereby better ensuring that the pressure outside the exhaust pipe 5 is greater than the pressure inside the exhaust pipe 5.

[0050] Among them, the air supply pipe 7 and the exhaust pipe 5 are both sealed pipes, so that the air supply pipe 7 and the exhaust pipe 5 have good sealing performance, thereby preventing the air supply pipe 7 and the exhaust pipe 5 from leaking and causing the high-temperature flammable and explosive gas generated by thermal runaway of the battery pack 8 to overflow into the battery compartment 1, so as to better protect the battery compartment 1.

[0051] It is worth noting that during the entire working process of the ship's power battery ventilation system, the exhaust fan 4 needs to be kept in working condition at all times so that the exhaust fan 4 can continuously discharge the high-temperature flammable and explosive gas generated by the thermal runaway of the battery pack 8 to the outside of the ship, thereby ensuring the safety of the battery pack 8 and the battery compartment 1, and can also make the gas pressure in the exhaust pipe 5 lower, so that the pressure outside the exhaust pipe 5 can be greater than the pressure inside the exhaust pipe 5.

[0052] The specific working process of the marine power battery ventilation system in this embodiment is as follows:

[0053] First, fresh air is supplied to the air conditioner 2 through the blower 3, so that the air conditioner 2 provides cold air with a certain pressure into the battery compartment 1, and the cold air is transported to each corner of the battery compartment 1 through the delivery pipe 6, thereby ventilating and dissipating heat in the battery compartment 1; and the battery compartment 1 is exhausted through the exhaust pipe by natural exhaust.

[0054] At the same time, air is supplied to the battery pack 8 through the air supply pipe 7 by means of natural air intake to dissipate heat and ventilate the battery pack 8; and the exhaust fan 4 exhausts air from the exhaust pipe 5 to extract the high-temperature flammable and explosive gas generated by the thermal runaway of the battery pack 8 through the output pipe 9 to the outside of the ship.

[0055] Since the blower 3 supplies air to the battery compartment 1 and the exhaust fan 4 exhausts air to the exhaust pipe 5, the pressure inside the exhaust pipe 5 can be made lower than the pressure outside the exhaust pipe 5. Under the action of the pressure difference between the inside and outside of the exhaust pipe 5, it can ensure that the high-temperature flammable and explosive gas generated by the thermal runaway of the battery pack 8 can only be extracted to the outside of the ship through the exhaust pipe 5, and will not overflow into the battery compartment 1, thereby ensuring the safety of the battery compartment 1.

[0056] The ship power battery ventilation system can not only ensure the safety of the battery compartment 1, but also the entire system is simple and convenient to install, has high economic benefits, and is suitable for promotion and use on various types of ships, making it more practical.

[0057] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A ship power battery ventilation system, which is used for ventilating and dissipating heat for a ship's battery compartment (1) and a plurality of battery packs (8) arranged in the battery compartment (1), and is characterized in that: include: An air conditioner (2) and a blower (3), wherein the air conditioner (2) is arranged in the battery compartment (1), the blower (3) is used to supply air to the air conditioner (2), and the air conditioner (2) is used to provide cold air to the battery compartment (1); due to the air supply function of the blower, the air conditioner can provide cold air with a certain pressure to the battery compartment; An exhaust fan (4) and an exhaust pipe (5), one end of the exhaust pipe (5) is respectively connected to the plurality of battery packs (8), and the other end of the exhaust pipe (5) is connected to the exhaust fan (4), and the exhaust fan (4) is configured to extract the gas in the battery pack (8) and discharge it to the outside of the ship. Due to the extraction action of the exhaust fan and the air supply action of the air supply fan, the pressure outside the exhaust pipe (5) can be greater than the pressure inside the exhaust pipe (5); the cold air with a certain pressure in the battery compartment (1) can limit the high-temperature flammable and explosive gas in the exhaust pipe (5) from overflowing into the battery compartment (1) through the connection between the blowing pipe and the battery pack (8), so that the high-temperature flammable and explosive gas in the exhaust pipe (5) can only be located in the exhaust pipe (5) and extracted to the outside of the battery compartment (1) through the exhaust fan (4).

2. The marine power battery ventilation system according to claim 1, characterized in that: The air inlet of the blower (3) is located outside the ship, and the air outlet of the blower (3) is connected to the air inlet of the air conditioner (2).

3. The marine power battery ventilation system according to claim 2, characterized in that: The battery compartment (1) is provided with an exhaust port, and the ship power battery ventilation system further comprises: An exhaust pipe, one end of which is connected to the exhaust port, and the other end of which is located outside the ship.

4. The marine power battery ventilation system according to claim 3, characterized in that: No branch pipes are provided at the connection between the air outlet of the blower (3) and the air inlet of the air conditioner (2), nor on the exhaust pipe.

5. The marine power battery ventilation system according to claim 4, characterized in that: The ship power battery ventilation system also includes: An air supply pipe (7), wherein the air inlet of the air supply pipe (7) is located outside the ship, and the air outlet of the air supply pipe (7) is respectively connected to the plurality of battery packs (8).

6. The marine power battery ventilation system according to claim 5, characterized in that: The branch pipeline is not provided on the air supply pipe (7) and the air exhaust pipe (5).

7. The marine power battery ventilation system according to claim 5, characterized in that: The air supply pipe (7) and the air exhaust pipe (5) are both sealed pipes.

8. The marine power battery ventilation system according to claim 1, characterized in that: A plurality of delivery pipes (6) are evenly arranged in the battery compartment (1), and the delivery pipes (6) are used to deliver the cold air of the air conditioner (2) into the battery compartment (1).

9. The marine power battery ventilation system according to any one of claims 1 to 8, characterized in that: The exhaust fan (4) is a sparkless centrifugal exhaust fan.

10. A ship, characterized in that: It comprises a battery compartment (1) and a ship power battery ventilation system according to any one of claims 1 to 9, wherein the ship power battery ventilation system is connected to the battery compartment (1).

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